Display TFT ST7789 (OshonSoft Basic).

DogFlu66 · Jun 7, 2024

I leave the library to use ST7789 TFT display, I have translated one that is in C language. But unfortunately I have not been able to get it to work yet. I leave the files in case someone with more experience with these displays can review it.

camerart · 2024-11-25T00:35:31-0800

DogFlu66 said:

I have merged it with the initial libraries and it has become as follows:

Code:

'*************************************************************************
' Special Command Signifiers
'*************************************************************************
Const ST_CMD_DELAY    =  0x80    ' Special signifier for command lists
'*************************************************************************
' Basic ST7789 Commands
'*************************************************************************
Const ST77XX_NOP      =  0x00    ' No operation
Const ST77XX_SWRESET  =  0x01    ' Software reset
Const ST77XX_RDDID    =  0x04    ' Read display ID
Const ST77XX_RDDST    =  0x09    ' Read display status

Const ST77XX_SLPIN    =  0x10    ' Enter sleep mode
Const ST77XX_SLPOUT   =  0x11    ' Exit sleep mode
Const ST77XX_PTLON    =  0x12    ' Enable partial mode
Const ST77XX_NORON    =  0x13    ' Exit partial mode (normal display mode)

Const ST77XX_INVOFF   =  0x20    ' Display inversion off
Const ST77XX_INVON    =  0x21    ' Display inversion on
Const ST77XX_DISPOFF  =  0x28    ' Display off
Const ST77XX_DISPON   =  0x29    ' Display on
Const ST77XX_CASET    =  0x2A    ' Column address set
Const ST77XX_RASET    =  0x2B    ' Row address set
Const ST77XX_RAMWR    =  0x2C    ' Memory write
Const ST77XX_RAMRD    =  0x2E    ' Memory read

Const ST77XX_PTLAR    =  0x30    ' Partial area
Const ST77XX_COLMOD   =  0x3A    ' Interface pixel format
Const ST77XX_MADCTL   =  0x36    ' Memory access control
Const ST77xx_DISP_FUNC = 0xB6    ' Display function control

'*************************************************************************
' MADCTL Options (Memory Access Control Register)
'*************************************************************************
Const ST77XX_MADCTL_MY  = 0x80    ' Row address order (top to bottom)
Const ST77XX_MADCTL_MX  = 0x40    ' Column address order (left to right)
Const ST77XX_MADCTL_MV  = 0x20    ' Row/column exchange (rotation)
Const ST77XX_MADCTL_ML  = 0x10    ' Vertical refresh order
Const ST77XX_MADCTL_RGB = 0x08    ' RGB color order (default)

'*************************************************************************
' ID Reading Commands
'*************************************************************************
Const ST77XX_RDID1     = 0xDA    ' Read ID part 1
Const ST77XX_RDID2     = 0xDB    ' Read ID part 2
Const ST77XX_RDID3     = 0xDC    ' Read ID part 3
Const ST77XX_RDID4     = 0xDD    ' Read ID part 4

'*************************************************************************
' Predefined 16-Bit Colors (RGB565 Format)
'*************************************************************************
Const LCD_BLACK   = 0x0000    ' Black color
Const LCD_RED     = 0x001F    ' Red color
Const LCD_BLUE    = 0xF800    ' Blue color
Const LCD_GREEN   = 0x07E0    ' Green color
Const LCD_YELLOW  = 0x07FF    ' Yellow color (Red + Green)
Const LCD_MAGENTA = 0xF81F    ' Magenta color (Red + Blue)
Const LCD_CYAN    = 0xFFE0    ' Cyan color (Green + Blue)
Const LCD_WHITE   = 0xFFFF    ' White color (Red + Green + Blue)
''/**************************************************************************/
''    @brief  Configuration and control of SPI for ST7789 display
''            Includes SPI initialization and command writing procedures.
''**************************************************************************/

'*************************************************************************
' Constants and Pin Definitions
'*************************************************************************

' LCD dimensions (modified by current rotation settings)
Const LCD_width = 320        ' Display width
Const LCD_height = 240       ' Display height

' SPI Pin Definitions
Symbol TFT_RST = LATC.0      ' Reset pin (RST)
Symbol TFT_DC  = LATC.1      ' Data/Command pin (DC/SS)
Symbol TFT_CS  = LATC.2      ' Chip Select pin (CS)
Symbol TFT_SCK = LATC.3      ' Clock pin (SCK)
Symbol TFT_SDI = PORTC.4     ' Serial Data In (SDI, input)
Symbol TFT_SDO = LATC.5      ' Serial Data Out (SDO, output)

' SPI Pin I/O Definitions
Symbol TFT_RST_IO = PORTC.0  ' Reset pin as I/O
Symbol TFT_DC_IO  = PORTC.1  ' Data/Command pin as I/O
Symbol TFT_CS_IO  = PORTC.2  ' Chip Select pin as I/O
Symbol TFT_SCK_IO = PORTC.3  ' Clock pin as I/O
Symbol TFT_SDI_IO = PORTC.4  ' Serial Data In pin as I/O
Symbol TFT_SDO_IO = PORTC.5  ' Serial Data Out pin as I/O

' SPI Operation Modes
Const LCD_SPI_MODE0 = 0         ' Clock low, data sampled on rising edge
Const LCD_SPI_MODE1 = 1         ' Clock low, data sampled on falling edge
Const LCD_SPI_MODE2 = 2         ' Clock high, data sampled on falling edge
Const LCD_SPI_MODE3 = 3         ' Clock high, data sampled on rising edge

' SPI Speeds
Const LCD_SPI_MASTER_SPEED0 = 0 ' Clock Fosc/4
Const LCD_SPI_MASTER_SPEED1 = 1 ' Clock Fosc/16
Const LCD_SPI_MASTER_SPEED2 = 2 ' Clock Fosc/64
Const LCD_SPI_MASTER_SPEED3 = 3 ' Clock TMR2 output/2

' Data Sampling Points
Const LCD_SMP_MIDDLE = %00000000 ' Data sampled in the middle of the output time
Const LCD_SMP_END    = %10000000 ' Data sampled at the end of the output time

' SPI Module Enable/Disable
Const LCD_SPI_ENABLE  = %00100000 ' Enable SSP module
Const LCD_SPI_DISABLE = %00000000 ' Disable SSP module

'*************************************************************************
' SPI Initialization Procedure
'*************************************************************************

'' @brief  Initializes the SPI module (MSSP1) in master mode.
''         Configures SPI mode, speed, and pin directions.
'' @param  mode  SPI operation mode (0 to 3).
'' @param  speed SPI speed setting (bits 3-0 of SSPCON1).
Proc LCD_SPI1_Init(mode As Byte, speed As Byte)
    ' Configure SPI pins
    ConfigPin TFT_RST_IO = Output   ' RESET pin as output
    ConfigPin TFT_DC_IO = Output    ' Data/Command pin as output
    ConfigPin TFT_CS_IO = Output    ' Chip Select pin as output
    ConfigPin TFT_SCK_IO = Output   ' Clock pin as output
    ConfigPin TFT_SDI_IO = Input    ' SDI pin as input
    ConfigPin TFT_SDO_IO = Output   ' SDO pin as output

    ' Configure SPI operation mode
    Select Case mode
        Case 0
            SSP1CON1.4 = 0 ' CKP = 0 (clock idle low)
            SSP1STAT.6 = 1 ' CKE = 1 (data changes on falling edge, sampled on rising edge)
        Case 1
            SSP1CON1.4 = 0 ' CKP = 0 (clock idle low)
            SSP1STAT.6 = 0 ' CKE = 0 (data changes on rising edge, sampled on falling edge)
        Case 2
            SSP1CON1.4 = 1 ' CKP = 1 (clock idle high)
            SSP1STAT.6 = 1 ' CKE = 1 (data changes on rising edge, sampled on falling edge)
        Case 3
            SSP1CON1.4 = 1 ' CKP = 1 (clock idle high)
            SSP1STAT.6 = 0 ' CKE = 0 (data changes on falling edge, sampled on rising edge)
    EndSelect

    ' Configure SPI speed and enable the module
    SSP1CON1 = SSP1CON1 | speed
End Proc

'*************************************************************************
' LCD Command Writing Procedure
'*************************************************************************

'' @brief  Sends a command byte to the LCD.
''         Controls DC and CS pins for proper communication.
'' @param  dat  Command byte to be sent.
Proc LCD_WRITE_COM(dat As Byte)
    TFT_CS = 0            ' Enable the LCD (Chip Select active)
    TFT_DC = 0            ' Set to command mode (DC low)
    SSPBUF = dat          ' Load the command byte into the SPI buffer
    While SSPSTAT.BF = 0  ' Wait for the transmission to complete
    Wend
    TFT_DC = 1            ' Return to data mode (DC high)
    TFT_CS = 1            ' Disable the LCD (Chip Select inactive)
End Proc
'' @brief  Sends a data byte to the LCD over SPI.
''         Controls the Data/Command (DC) and Chip Select (CS) pins to
''         indicate that the transmitted byte is data.
'' @param  dat  The data byte to send to the LCD.
Proc LCD_WRITE_DATA(dat As Byte)
    ' Select the LCD (Chip Select active)
    TFT_CS = 0

    ' Set DC pin high to indicate data mode
    TFT_DC = 1

    ' Send the data byte via SPI
    SSPBUF = dat

    ' Wait for the SPI transmission to complete
    While SSPSTAT.BF = 0
    Wend

    ' Optionally keep DC high, as it is data mode by default
    TFT_DC = 1

    ' Deselect the LCD (Chip Select inactive)
    TFT_CS = 1
End Proc
''/**************************************************************************/
''    @brief  Initialization code for ST7789 display
''            This function initializes the display controller using a
''            predefined sequence of commands and data. It sets up power,
''            timing, and display configuration parameters.
''/**************************************************************************/
Proc LCD_init()

    ' Reset sequence for the display controller
    High TFT_RST                ' Set the reset pin high
    ' ConfigPin TFT_RST = Output ' Ensure the pin is configured as output
    WaitMs 100                  ' Wait 100ms
    Low TFT_RST                 ' Pull the reset pin low
    WaitMs 100                  ' Wait 100ms
    High TFT_RST                ' Set the reset pin high again
    WaitMs 200                  ' Wait 200ms for the reset to complete

    ' Send software reset command
    Call LCD_WRITE_COM(ST77XX_SWRESET)  ' Software reset
    WaitMs 150                          ' Wait for the reset to take effect

    ' Turn off the display (preparation step)
    Call LCD_WRITE_COM(ST77XX_DISPOFF)  ' Display off

    ' Power control A configuration
    Call LCD_WRITE_COM(0xCB)
    Call LCD_WRITE_DATA(0x39)
    Call LCD_WRITE_DATA(0x2C)
    Call LCD_WRITE_DATA(0x00)
    Call LCD_WRITE_DATA(0x34)
    Call LCD_WRITE_DATA(0x02)
    WaitMs 1

    ' Power control B configuration
    Call LCD_WRITE_COM(0xCF)
    Call LCD_WRITE_DATA(0x00)
    Call LCD_WRITE_DATA(0xC1)
    Call LCD_WRITE_DATA(0x30)
    WaitMs 1

    ' Timing control A configuration
    Call LCD_WRITE_COM(0xE8)
    Call LCD_WRITE_DATA(0x85)
    Call LCD_WRITE_DATA(0x10)
    Call LCD_WRITE_DATA(0x78)
    WaitMs 1

    ' Timing control B configuration
    Call LCD_WRITE_COM(0xEA)
    Call LCD_WRITE_DATA(0x00)
    Call LCD_WRITE_DATA(0x00)
    WaitMs 1

    ' Power-on sequence control
    Call LCD_WRITE_COM(0xED)
    Call LCD_WRITE_DATA(0x64)
    Call LCD_WRITE_DATA(0x03)
    Call LCD_WRITE_DATA(0x12)
    Call LCD_WRITE_DATA(0x81)

    ' Power control 1 (VRH)
    Call LCD_WRITE_COM(0xC0)
    Call LCD_WRITE_DATA(0x26)

    ' Power control 2 (SAP and BT settings)
    Call LCD_WRITE_COM(0xC1)
    Call LCD_WRITE_DATA(0x11)

    ' VCM control (Contrast settings)
    Call LCD_WRITE_COM(0xC5)
    Call LCD_WRITE_DATA(0x3E)
    Call LCD_WRITE_DATA(0x28)

    ' Frame rate control (set to default)
    Call LCD_WRITE_COM(0xF7)
    Call LCD_WRITE_DATA(0x20)

    ' Memory access control (MADCTL)
    Call LCD_WRITE_COM(ST77XX_MADCTL)
    Call LCD_WRITE_DATA(0x08)   ' Set orientation and RGB order

    ' Disable display inversion
    Call LCD_WRITE_COM(ST77XX_INVOFF)

    ' Normal display mode
    Call LCD_WRITE_COM(ST77XX_NORON)
    WaitMs 1

    ' Set pixel format to 16 bits per pixel
    Call LCD_WRITE_COM(ST77XX_COLMOD)
    Call LCD_WRITE_DATA(0x55)

    ' Entry mode configuration
    Call LCD_WRITE_COM(0xB7)
    Call LCD_WRITE_DATA(0x07)

    ' Display function control
    Call LCD_WRITE_COM(ST77xx_DISP_FUNC)
    Call LCD_WRITE_DATA(0x08)
    Call LCD_WRITE_DATA(0x82)
    Call LCD_WRITE_DATA(0x27)
    WaitMs 1

    ' Exit sleep mode
    Call LCD_WRITE_COM(ST77XX_SLPOUT)
    WaitMs 120                  ' Wait for the display to wake up

    ' Turn on the display
    Call LCD_WRITE_COM(ST77XX_DISPON)
    WaitMs 1                    ' Wait for the display to turn on

End Proc
'/**************************************************************************/
'  @brief  SPI displays set an address window rectangle For blitting pixels
'  @param  x1  Top left corner x coordinate
'  @param  y1 Top left corner x coordinate
'  @param  x2  Width of window
'  @param  y2  Height of window
'/**************************************************************************/
Proc setAddrWindow(x1 As Word, y1 As Word, x2 As Word, y2 As Word)

    Call LCD_WRITE_COM(ST77XX_CASET)  //Column addr set
    Call LCD_WRITE_DATA(x1.HB)
    Call LCD_WRITE_DATA(x1.LB)
    Call LCD_WRITE_DATA(x2.HB)
    Call LCD_WRITE_DATA(x2.LB)
    Call LCD_WRITE_COM(ST77XX_RASET)  //Row addr set
    Call LCD_WRITE_DATA(y1.HB)
    Call LCD_WRITE_DATA(y1.LB)
    Call LCD_WRITE_DATA(y2.HB)
    Call LCD_WRITE_DATA(y2.LB)

    Call LCD_WRITE_COM(ST77XX_RAMWR)  //write to RAM
End Proc

'/**************************************************************************/
'    @brief  Set origin of (0,0) And orientation of TFT display
'    @param  m  The index For rotation, from 0-3 inclusive
'/**************************************************************************/
Proc SetRotation(m As Word)
  Dim rotation As Byte
  Dim madctl As Byte
  madctl = 0

  If m > 3 Then m = 3
   rotation = m

  Select Case (rotation)
   Case 0
     madctl  = ST77XX_MADCTL_MX | ST77XX_MADCTL_MY | ST77XX_MADCTL_RGB
   Case 1
     madctl  = ST77XX_MADCTL_MY | ST77XX_MADCTL_MV | ST77XX_MADCTL_RGB
  Case 2
     madctl  = ST77XX_MADCTL_RGB
   Case 3
     madctl  = ST77XX_MADCTL_MX | ST77XX_MADCTL_MV | ST77XX_MADCTL_RGB
  EndSelect
   Call LCD_WRITE_COM(ST77XX_MADCTL)
   Call LCD_WRITE_DATA(madctl)
End Proc
'    @brief  Draw a single pixel on the LCD at the specified coordinates.
'            The pixel color is defined in '565' RGB format.
'    @param  x1     X coordinate of the pixel.
'    @param  y1     Y coordinate of the pixel.
'    @param  color  16-bit pixel color in '565' RGB format.
Proc LCD_DrawPoint(x1 As Word, y1 As Word, color As Word)

    ' Set column address (X coordinate)
    Call LCD_WRITE_COM(ST77XX_CASET)  // Column address set
    Call LCD_WRITE_DATA(x1.HB)        // High byte of X coordinate
    Call LCD_WRITE_DATA(x1.LB)        // Low byte of X coordinate

    ' Set row address (Y coordinate)
    Call LCD_WRITE_COM(ST77XX_RASET)  // Row address set
    Call LCD_WRITE_DATA(y1.HB)        // High byte of Y coordinate
    Call LCD_WRITE_DATA(y1.LB)        // Low byte of Y coordinate

    ' Write pixel data to RAM
    Call LCD_WRITE_COM(ST77XX_RAMWR)  // Write to RAM
    Call LCD_WRITE_DATA(color.HB)     // High byte of color
    Call LCD_WRITE_DATA(color.LB)     // Low byte of color

End Proc
Proc DrawPixel(x As Word, y As Word, color As Word)

    Call LCD_WRITE_COM(ST77XX_CASET)  //Column addr set
    Call LCD_WRITE_DATA(x.HB)
    Call LCD_WRITE_DATA(x.LB)
    Call LCD_WRITE_COM(ST77XX_RASET)  //Row addr set
    Call LCD_WRITE_DATA(y.HB)
    Call LCD_WRITE_DATA(y.LB)
    Call LCD_WRITE_COM(ST77XX_RAMWR)  //write to RAM

    Call LCD_WRITE_DATA(color.HB)
    Call LCD_WRITE_DATA(color.LB)

End Proc
'    @brief  Draw a straight line on the LCD using Bresenham's line algorithm.
'            The line is defined by its start and end points and is drawn pixel by pixel.
'    @param  x1     X coordinate of the starting point.
'    @param  y1     Y coordinate of the starting point.
'    @param  x2     X coordinate of the ending point.
'    @param  y2     Y coordinate of the ending point.
'    @param  color  16-bit pixel color in '565' RGB format.
Proc LCD_DrawLine(x1 As Word, y1 As Word, x2 As Word, y2 As Word, color As Word)

    Dim t As Word
    Dim xerr, yerr, delta_x, delta_y, distance As Integer
    Dim incx, incy, xPix, yPix As Integer
    xerr = 0
    yerr = 0

    delta_x = x2 - x1
    delta_y = y2 - y1
    xPix = x1
    yPix = y1

    ' Determine the direction of the line
    If delta_x > 0 Then incx = 1
    If delta_x = 0 Then incx = 0
    If delta_x < 0 Then
        incx = -1
        delta_x = -delta_x
    Endif

    If delta_y > 0 Then incy = 1
    If delta_y = 0 Then incy = 0
    If delta_y < 0 Then
        incy = -1
        delta_y = -delta_y
    Endif

    ' Determine the distance to iterate
    If delta_x > delta_y Then
        distance = delta_x
    Else
        distance = delta_y
    Endif

    ' Draw the line pixel by pixel
    For t = 0 To distance + 1 Step 1
        Call LCD_DrawPoint(xPix, yPix, color) ' Draw current pixel
        xerr = xerr + delta_x
        yerr = yerr + delta_y
        If xerr > distance Then
            xerr = xerr - distance
            xPix = xPix + incx
        Endif
        If yerr > distance Then
            yerr = yerr - distance
            yPix = yPix + incy
        Endif
    Next t

End Proc
'/**************************************************************************/
'   @brief    Draw A perfectly horizontal line (this is often optimized in A subclass!)
'    @param    x   Left-most x coordinate
'    @param    y   Left-most y coordinate
'    @param    W   Width in pixels
'   @param    color 16-Bit 5-6-5 Color To fill with
'/**************************************************************************/
Proc drawHLine(x As Byte, y As Byte, _W As Byte, color As Word)

    Call LCD_DrawLine(x, y, _W, 1, color)

End Proc

'/**************************************************************************/
'   @brief    Draw A perfectly vertical line (this is often optimized in A subclass!)
'    @param    x   Top-most x coordinate
'    @param    y   Top-most y coordinate
'    @param    h   Height in pixels
'   @param    color 16-Bit 5-6-5 Color To fill with
'/**************************************************************************/
Proc drawVLine(x As Word, y As Word, h As Word, color As Word)

    Call LCD_DrawLine(x, y, 1, h, color)

End Proc
'    @brief  Draw a rectangle on the LCD by connecting four lines.
'            The rectangle is defined by its top-left and bottom-right corners.
'    @param  x1     X coordinate of the top-left corner.
'    @param  y1     Y coordinate of the top-left corner.
'    @param  x2     X coordinate of the bottom-right corner.
'    @param  y2     Y coordinate of the bottom-right corner.
'    @param  color  16-bit pixel color in '565' RGB format.
Proc LCD_DrawRectangle(x1 As Integer, y1 As Integer, x2 As Integer, y2 As Integer, color As Word)

    ' Draw the top edge of the rectangle
    Call LCD_DrawLine(x1, y1, x2, y1, color)

    ' Draw the left edge of the rectangle
    Call LCD_DrawLine(x1, y1, x1, y2, color)

    ' Draw the bottom edge of the rectangle
    Call LCD_DrawLine(x1, y2, x2, y2, color)

    ' Draw the right edge of the rectangle
    Call LCD_DrawLine(x2, y1, x2, y2, color)

End Proc
'/**************************************************************************/
'   @brief    Fill A rectangle completely with one color. Update in subclasses If desired!
'    @param    x   Top left corner x coordinate
'    @param    y   Top left corner y coordinate
'    @param    W   Width in pixels
'    @param    h   Height in pixels
'   @param    color 16-Bit 5-6-5 Color To fill with
'/**************************************************************************/
Proc fillRect(x1 As Word, y1 As Word, x2 As Word, y2 As Word, color As Word)

    Dim px As Long
    If x2 > 0 And y2 > 0 Then      //Nonzero width and height?
        Call setAddrWindow(x1, y1, x2, y2)
        px = x2
        px = px * y2
        TFT_CS = 0
        TFT_DC = 1
        While px > 1
            SSP1BUF = color.HB
            While SSP1STAT.BF = 0
            Wend
            SSP1BUF = color.LB
            While SSP1STAT.BF = 0
            Wend
            --px
        Wend
        TFT_DC = 1
        TFT_CS = 1
    Endif

End Proc
'    @brief  Draw a circle on the LCD using the midpoint circle algorithm.
'            The circle is defined by its center coordinates, radius, and color.
'    @param  x1     Horizontal position of the circle's center (X coordinate).
'    @param  y1     Vertical position of the circle's center (Y coordinate).
'    @param  rad    Radius of the circle in pixels.
'    @param  color  16-bit pixel color in '565' RGB format.
Proc LCD_Circle(x1 As Word, y1 As Word, rad As Word, color As Word)

    Dim xPix, yPix, di As Integer
    xPix = 0
    yPix = rad
    di = 3 - rad << 1 'ShiftLeft(rad, 1)

    While xPix <= yPix

        ' Draw symmetric points for the circle
        Call LCD_DrawPoint(x1+xPix, y1-yPix, color)
        Call LCD_DrawPoint(x1+yPix, y1-xPix, color)
        Call LCD_DrawPoint(x1+yPix, y1+xPix, color)
        Call LCD_DrawPoint(x1+xPix, y1+yPix, color)
        Call LCD_DrawPoint(x1-xPix, y1+yPix, color)
        Call LCD_DrawPoint(x1-yPix, y1+xPix, color)
        Call LCD_DrawPoint(x1-xPix, y1-yPix, color)
        Call LCD_DrawPoint(x1-yPix, y1-xPix, color)

        xPix = xPix + 1

        ' Update decision parameter and adjust yPix if necessary
        If di < 0 Then
            di = di + (4 * xPix + 6)
        Else
            di = di + (10 + 4 * (xPix - yPix))
            yPix = yPix - 1
        Endif
    Wend

End Proc
'/**************************************************************************/
'   @brief    Fill the screen completely with one color. Update in subclasses If desired!
'    @param    color 16-Bit 5-6-5 Color To fill with
'/**************************************************************************/
Proc fillScreen(color As Word)
    Call fillRect(0, 0, LCD_width, LCD_height, color)
End Proc
Proc fillwindow(x1 As Word,y1 As Word,x2 As Word,y2 As Word,color As Word)
Call fillRect(x1, y1, x2, y2, color)
End Proc
'/**************************************************************************/
'    @brief  Invert the colors of the display (If supported by hardware).
'            Self-contained, no transaction setup required.
'    @param  i  True = inverted display, False = normal display.
'/**************************************************************************/
Proc invertDisplay(i As Bit)
    If i Then
        Call LCD_WRITE_COM(ST77XX_INVON)
    Else
        Call LCD_WRITE_COM(ST77XX_INVOFF)
    Endif
End Proc
'    @brief  Push a 16-bit color to the LCD RAM with a command transaction.
'            Deprecated function, preserved for backward compatibility.
'    @param  color  16-bit pixel color in '565' RGB format.
Proc pushColor(color As Word)

    Call LCD_WRITE_COM(ST77XX_RAMWR)  //write to RAM
    Call LCD_WRITE_DATA(color.HB)
    Call LCD_WRITE_DATA(color.LB)

End Proc

'    @brief  Draw a character at a specified position on the LCD.
'            Characters are rendered with foreground and background colors.
'    @param  char   ASCII character to display.
'    @param  x      Horizontal position (starting X coordinate).
'    @param  y      Vertical position (starting Y coordinate).
'    @param  fcol   Foreground color in '565' RGB format.
'    @param  bcol   Background color in '565' RGB format.
Proc LCD_Char(char As Byte, x As Word, y As Word, fcol As Word, bcol As Word)

    Dim  x0 As Integer
    Dim idx, idx2 As Byte
    Dim mask As Byte

    For idx = 0 To 9 Step 1
        mask = _LCDFnt(char, idx)
        For idx2 = 0 To 13 Step 2
            If mask And 0x80 Then
                Call LCD_DrawPoint(x+idx2, y, fcol)
                Call LCD_DrawPoint(x+idx2+1, y, fcol)
                Call LCD_DrawPoint(x+idx2, y+1, fcol)
                Call LCD_DrawPoint(x+idx2+1, y+1, fcol)
            Else
                Call LCD_DrawPoint(x+idx2, y, bcol)
                Call LCD_DrawPoint(x+idx2+1, y, bcol)
                Call LCD_DrawPoint(x+idx2, y+1, bcol)
                Call LCD_DrawPoint(x+idx2+1, y+1, bcol)
            Endif
            mask = ShiftLeft(mask,1)
        Next idx2
        y = y + 2
    Next idx

End Proc

'    @brief  Display a string of characters on the LCD at a given position.
'            Each character is rendered with specified foreground and background colors.
'    @param  str    String to display.
'    @param  x      Horizontal position (starting X coordinate).
'    @param  y      Vertical position (starting Y coordinate).
'    @param  fcol   Foreground color in '565' RGB format.
'    @param  bcol   Background color in '565' RGB format.
Proc LCD_String(str As String, x As Word, y As Word, fcol As Word, bcol As Word)

    Dim idx As Byte
    Dim x0 As Word
    idx = 0

    While str(idx) <> 0
        Call LCD_Char(str(idx), x, y, fcol, bcol)
        x = x + 18
        idx = idx + 1
    Wend

End Proc

Function _LCDFnt(ch As Byte, idx As Byte) As Byte
    Symbol Retval = _LCDFnt

            Select Case ch
                Case " "
                    Retval = LookUp(0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00), idx  //SPACE
                Case "!"
                    Retval = LookUp(0x00, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x00, 0x08, 0x00), idx  //!
                Case 34
                    Retval = LookUp(0x00, 0x14, 0x14, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00), idx  // "
                Case "#"
                    Retval = LookUp(0x00, 0x12, 0x12, 0x7f, 0x24, 0x24, 0xfe, 0x48, 0x48, 0x00), idx  //#
                Case "$"
                    Retval = LookUp(0x00, 0x10, 0x7c, 0x92, 0x70, 0x1c, 0x92, 0x7c, 0x10, 0x00), idx  //$
                Case "%"
                    Retval = LookUp(0x00, 0x41, 0xa2, 0x44, 0x08, 0x10, 0x22, 0x45, 0x82, 0x00), idx  //%
                Case "&"
                    Retval = LookUp(0x00, 0x10, 0x28, 0x10, 0x28, 0x44, 0x43, 0x42, 0x39, 0x00), idx  //&
                Case "'"
                    Retval = LookUp(0x00, 0x10, 0x10, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00), idx  //'
                Case "("
                    Retval = LookUp(0x00, 0x08, 0x10, 0x20, 0x20, 0x20, 0x20, 0x10, 0x08, 0x00), idx  //(
                Case ")"
                    Retval = LookUp(0x00, 0x08, 0x04, 0x02, 0x02, 0x02, 0x20, 0x04, 0x08, 0x00), idx  //)
                Case "*"
                    Retval = LookUp(0x00, 0x08, 0x2a, 0x1c, 0x7f, 0x1c, 0x2a, 0x08, 0x00, 0x00), idx  //*
                Case "+"
                    Retval = LookUp(0x00, 0x00, 0x00, 0x00, 0x00, 0x3e, 0x08, 0x08, 0x00, 0x00), idx  //+
                Case ","
                    Retval = LookUp(0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08, 0x08, 0x10, 0x00), idx  //,
                Case "-"
                    Retval = LookUp(0x00, 0x00, 0x00, 0x00, 0x00, 0x3e, 0x00, 0x00, 0x00, 0x00), idx  //-
                Case "."
                    Retval = LookUp(0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08, 0x08, 0x00), idx  //.
                Case "/"
                    Retval = LookUp(0x00, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x00), idx  ///
                Case "0"
                    Retval = LookUp(0x00, 0x3c, 0x46, 0x4a, 0x4a, 0x52, 0x52, 0x62, 0x3c, 0x00), idx  //0
                Case "1"
                    Retval = LookUp(0x00, 0x08, 0x18, 0x08, 0x08, 0x08, 0x08, 0x08, 0x3e, 0x00), idx  //1
                Case "2"
                    Retval = LookUp(0x00, 0x3c, 0x42, 0x02, 0x0c, 0x30, 0x40, 0x40, 0x7e, 0x00), idx  //2
                Case "3"
                    Retval = LookUp(0x00, 0x3c, 0x42, 0x02, 0x0c, 0x02, 0x02, 0x42, 0x3c, 0x00), idx  //3
                Case "4"
                    Retval = LookUp(0x00, 0x09, 0x18, 0x28, 0x48, 0x48, 0x7e, 0x08, 0x08, 0x00), idx  //4
                Case "5"
                    Retval = LookUp(0x00, 0x7e, 0x40, 0x40, 0x7c, 0x02, 0x02, 0x42, 0x3c, 0x00), idx  //5
                Case "6"
                    Retval = LookUp(0x00, 0x3c, 0x42, 0x40, 0x7c, 0x42, 0x42, 0x42, 0x3c, 0x00), idx  //6
                Case "7"
                    Retval = LookUp(0x00, 0x7e, 0x02, 0x02, 0x04, 0x08, 0x10, 0x10, 0x10, 0x00), idx  //7
                Case "8"
                    Retval = LookUp(0x00, 0x3c, 0x42, 0x42, 0x3c, 0x42, 0x42, 0x42, 0x3c, 0x00), idx  //8
                Case "9"
                    Retval = LookUp(0x00, 0x3c, 0x42, 0x42, 0x3e, 0x02, 0x02, 0x42, 0x3c, 0x00), idx  //9
                Case ":"
                    Retval = LookUp(0x00, 0x00, 0x00, 0x08, 0x08, 0x00, 0x08, 0x08, 0x00, 0x00), idx  //:
                Case ";"
                    Retval = LookUp(0x00, 0x00, 0x00, 0x08, 0x08, 0x00, 0x08, 0x08, 0x10, 0x00), idx  //;
                Case "<"
                    Retval = LookUp(0x00, 0x04, 0x08, 0x10, 0x20, 0x20, 0x10, 0x08, 0x04, 0x00), idx  //<
                Case "="
                    Retval = LookUp(0x00, 0x00, 0x00, 0x00, 0x3e, 0x00, 0x3e, 0x00, 0x00, 0x00), idx  //=
                Case ">"
                    Retval = LookUp(0x00, 0x10, 0x08, 0x04, 0x02, 0x02, 0x04, 0x08, 0x10, 0x00), idx  //>
                Case "?"
                    Retval = LookUp(0x00, 0x3c, 0x42, 0x02, 0x04, 0x08, 0x08, 0x00, 0x08, 0x00), idx  //?
                Case "@"
                    Retval = LookUp(0x00, 0x7e, 0x81, 0x9b, 0xa5, 0xa6, 0x9c, 0x81, 0x7e, 0x00), idx  //@
                Case "A"
                    Retval = LookUp(0x00, 0x18, 0x24, 0x42, 0x42, 0x7e, 0x42, 0x42, 0x42, 0x00), idx  //A
                Case "B"
                    Retval = LookUp(0x00, 0x7c, 0x42, 0x42, 0x7c, 0x42, 0x42, 0x42, 0x7c, 0x00), idx  //B
                Case "C"
                    Retval = LookUp(0x00, 0x3c, 0x42, 0x40, 0x40, 0x40, 0x40, 0x42, 0x3c, 0x00), idx  //C
                Case "D"
                    Retval = LookUp(0x00, 0x7c, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x7c, 0x00), idx  //D
                Case "E"
                    Retval = LookUp(0x00, 0x7e, 0x40, 0x40, 0x78, 0x40, 0x40, 0x40, 0x7e, 0x00), idx  //E
                Case "F"
                    Retval = LookUp(0x00, 0x7e, 0x40, 0x40, 0x78, 0x40, 0x40, 0x40, 0x40, 0x00), idx  //F
                Case "G"
                    Retval = LookUp(0x00, 0x3c, 0x42, 0x40, 0x40, 0x46, 0x42, 0x42, 0x3c, 0x00), idx  //G
                Case "H"
                    Retval = LookUp(0x00, 0x42, 0x42, 0x42, 0x7e, 0x42, 0x42, 0x42, 0x42, 0x00), idx  //H
                Case "I"
                    Retval = LookUp(0x00, 0x7e, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x7e, 0x00), idx  //I
                Case "J"
                    Retval = LookUp(0x00, 0x7e, 0x08, 0x08, 0x08, 0x08, 0x08, 0x48, 0x30, 0x00), idx  //J
                Case "K"
                    Retval = LookUp(0x00, 0x42, 0x44, 0x48, 0x70, 0x48, 0x44, 0x42, 0x42, 0x00), idx  //K
                Case "L"
                    Retval = LookUp(0x00, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x7e, 0x00), idx  //L
                Case "M"
                    Retval = LookUp(0x00, 0x42, 0x42, 0x66, 0x5a, 0x42, 0x42, 0x42, 0x42, 0x00), idx  //M
                Case "N"
                    Retval = LookUp(0x00, 0x42, 0x42, 0x62, 0x52, 0x4a, 0x46, 0x42, 0x42, 0x00), idx  //N
                Case "O"
                    Retval = LookUp(0x00, 0x3c, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x3c, 0x00), idx  //O
                Case "P"
                    Retval = LookUp(0x00, 0x7c, 0x42, 0x42, 0x7c, 0x40, 0x40, 0x40, 0x40, 0x00), idx  //P
                Case "Q"
                    Retval = LookUp(0x00, 0x3c, 0x42, 0x42, 0x42, 0x42, 0x4a, 0x46, 0x3e, 0x00), idx  //Q
                Case "R"
                    Retval = LookUp(0x00, 0x7c, 0x42, 0x42, 0x7c, 0x48, 0x44, 0x42, 0x42, 0x00), idx  //R
                Case "S"
                    Retval = LookUp(0x00, 0x3c, 0x42, 0x40, 0x30, 0x0c, 0x02, 0x42, 0x3c, 0x00), idx  //S
                Case "T"
                    Retval = LookUp(0x00, 0x7e, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x00), idx  //T
                Case "U"
                    Retval = LookUp(0x00, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x3c, 0x00), idx  //U
                Case "V"
                    Retval = LookUp(0x00, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x24, 0x18, 0x00), idx  //V
                Case "W"
                    Retval = LookUp(0x00, 0x42, 0x42, 0x42, 0x42, 0x42, 0x5a, 0x66, 0x42, 0x00), idx  //W
                Case "X"
                    Retval = LookUp(0x00, 0x42, 0x42, 0x24, 0x18, 0x18, 0x24, 0x42, 0x42, 0x00), idx  //X
                Case "Y"
                    Retval = LookUp(0x00, 0x42, 0x42, 0x24, 0x18, 0x05, 0x08, 0x08, 0x08, 0x00), idx  //Y
                Case "Z"
                    Retval = LookUp(0x00, 0x7e, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x7e, 0x00), idx  //Z
                Case "["
                    Retval = LookUp(0x00, 0x3c, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x3c, 0x00), idx  //[
                Case "\"
                    Retval = LookUp(0x00, 0x80, 0x40, 0x20, 0x10, 0x08, 0x04, 0x02, 0x01, 0x00), idx  //\
                Case "]"
                    Retval = LookUp(0x00, 0x3c, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x3c, 0x00), idx  //]
                Case "^"
                    Retval = LookUp(0x00, 0x08, 0x14, 0x22, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00), idx  //^
                Case "_"
                    Retval = LookUp(0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7f, 0x00), idx  //_
                Case "`"
                    Retval = LookUp(0x00, 0x10, 0x10, 0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00), idx  //`
                Case "a"
                    Retval = LookUp(0x00, 0x00, 0x00, 0x1c, 0x02, 0x1e, 0x22, 0x22, 0x1e, 0x00), idx  //a
                Case "b"
                    Retval = LookUp(0x00, 0x20, 0x20, 0x3c, 0x22, 0x22, 0x22, 0x22, 0x3c, 0x00), idx  //b
                Case "c"
                    Retval = LookUp(0x00, 0x00, 0x00, 0x1c, 0x22, 0x20, 0x20, 0x22, 0x1c, 0x00), idx  //c
                Case "d"
                    Retval = LookUp(0x00, 0x02, 0x02, 0x1e, 0x22, 0x22, 0x22, 0x22, 0x1e, 0x00), idx  //d
                Case "e"
                    Retval = LookUp(0x00, 0x00, 0x00, 0x1c, 0x22, 0x3e, 0x20, 0x22, 0x1c, 0x00), idx  //e
                Case "f"
                    Retval = LookUp(0x00, 0x0c, 0x10, 0x10, 0x3c, 0x10, 0x10, 0x10, 0x10, 0x00), idx  //f
                Case "g"
                    Retval = LookUp(0x00, 0x00, 0x00, 0x1e, 0x22, 0x22, 0x22, 0x1e, 0x02, 0x3c), idx  //g
                Case "h"
                    Retval = LookUp(0x00, 0x20, 0x20, 0x3c, 0x22, 0x22, 0x22, 0x22, 0x22, 0x00), idx  //h
                Case "i"
                    Retval = LookUp(0x00, 0x08, 0x00, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x00), idx  //i
                Case "j"
                    Retval = LookUp(0x00, 0x08, 0x00, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x30), idx  //j
                Case "k"
                    Retval = LookUp(0x00, 0x20, 0x20, 0x22, 0x24, 0x38, 0x24, 0x22, 0x22, 0x00), idx  //k
                Case "l"
                    Retval = LookUp(0x00, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x18, 0x00), idx  //l
                Case "m"
                    Retval = LookUp(0x00, 0x00, 0x00, 0x22, 0x36, 0x2a, 0x22, 0x22, 0x22, 0x00), idx  //m
                Case "n"
                    Retval = LookUp(0x00, 0x00, 0x00, 0x3c, 0x22, 0x22, 0x22, 0x22, 0x22, 0x00), idx  //n
                Case "o"
                    Retval = LookUp(0x00, 0x00, 0x00, 0x1c, 0x22, 0x22, 0x22, 0x22, 0x1c, 0x00), idx  //o
                Case "p"
                    Retval = LookUp(0x00, 0x00, 0x00, 0x7c, 0x14, 0x14, 0x14, 0x08, 0x00, 0x00), idx  //p
                Case "q"
                    Retval = LookUp(0x00, 0x00, 0x00, 0x3c, 0x22, 0x22, 0x22, 0x3c, 0x20, 0x20), idx  //q
                Case "r"
                    Retval = LookUp(0x00, 0x00, 0x00, 0x2e, 0x30, 0x20, 0x20, 0x20, 0x20, 0x00), idx  //r
                Case "s"
                    Retval = LookUp(0x00, 0x00, 0x00, 0x1c, 0x22, 0x10, 0x0c, 0x22, 0x1c, 0x00), idx  //s
                Case "t"
                    Retval = LookUp(0x00, 0x10, 0x10, 0x38, 0x10, 0x10, 0x10, 0x12, 0x0c, 0x00), idx  //t
                Case "u"
                    Retval = LookUp(0x00, 0x00, 0x00, 0x22, 0x22, 0x22, 0x22, 0x22, 0x1c, 0x00), idx  //u
                Case "v"
                    Retval = LookUp(0x00, 0x00, 0x00, 0x22, 0x22, 0x22, 0x22, 0x14, 0x08, 0x00), idx  //v
                Case "w"
                    Retval = LookUp(0x00, 0x00, 0x00, 0x22, 0x22, 0x22, 0x2a, 0x36, 0x22, 0x00), idx  //w
                Case "x"
                    Retval = LookUp(0x00, 0x00, 0x00, 0x22, 0x14, 0x08, 0x14, 0x22, 0x22, 0x00), idx  //x
                Case "y"
                    Retval = LookUp(0x00, 0x00, 0x00, 0x22, 0x22, 0x22, 0x22, 0x1e, 0x02, 0x3c), idx  //y
                Case "z"
                    Retval = LookUp(0x00, 0x00, 0x00, 0x3e, 0x02, 0x04, 0x08, 0x10, 0x3e, 0x00), idx  //z
                Case "{"
                    Retval = LookUp(0x00, 0x04, 0x08, 0x08, 0x08, 0x10, 0x08, 0x08, 0x08, 0x04), idx  //{
                Case "|"
                    Retval = LookUp(0x00, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x00), idx  //|
                Case "}"
                    Retval = LookUp(0x00, 0x10, 0x08, 0x08, 0x08, 0x04, 0x08, 0x08, 0x08, 0x10), idx  //}
                Case "~"
                    Retval = LookUp(0x00, 0x00, 0x00, 0x00, 0xcc, 0x33, 0x00, 0x00, 0x00, 0x00), idx  //~
                Case 165 '"Ãƒâ€˜" + chr(165) +
                    Retval = LookUp(0x00, 0x00, 0x00, 0x7e, 0x05, 0x09, 0x11, 0x7e), idx  //Ãƒâ€˜
                Case 164'"ÃƒÂ±" + chr(164) +
                    Retval = LookUp(0x00, 0x00, 0x00, 0x78, 0x12, 0x0a, 0x0a, 0x70), idx  //ÃƒÂ±
            EndSelect

End Function

Hi D and I,
Thanks.
With both of your CODEs I have to alter them to make them work.
e,g, there is no SSP1CON1 with the 18F46K20, and they don't oscillate, so I use my XTL oscillator.
Ian's is almost working, but I can't change some of the settings, e,g, sreen writing direction.

Using my set up with DOG's CODE, it compiles, but the [ Proc LCD_init() ] section stops my LED and SCREEN indicator working, maybe the oscillator?.

I don't expect either of you to mess about with my CODE, so you can devolop the TFT without needing to get held up by me. I'm afraid this is due to the limit of my programming skills. {tiresome!}

Do either of you mind me posting your CODE on the AAC forum?
C

Ian Rogers · 2024-11-25T04:04:53-0800

Hi C.

That may be a typo on Dogs code as I use SSPCON1 and always have.

Post me your current code. I'll see what gives..

Which code do you want on AAC?

DogFlu66 · 2024-11-25T04:26:35-0800

I use the Pic18F46K22 which has two MSSP modules, and I have the habit of configuring the registers with the names of the datasheet. In my case it would be SSP1CON1, to make it compatible you just have to delete the "1" in the middle of the registers, this register would be SSPCON1 for your Pic. However, the 18F46K22 for the MSSP1 accepts both, so I will edit it and change it because it works for me in both ways.

I think that to publish the libraries in another forum we would first have to finish the final ones, but for my part there is no problem.

camerart · 2024-11-25T04:51:14-0800

DogFlu66 said:
I use the Pic18F46K22 which has two MSSP modules, and I have the habit of configuring the registers with the names of the datasheet. In my case it would be SSP1CON1, to make it compatible you just have to delete the "1" in the middle of the registers, this register would be SSPCON1 for your Pic. However, the 18F46K22 for the MSSP1 accepts both, so I will edit it and change it because it works for me in both ways.

I think that to publish the libraries in another forum we would first have to finish the final ones, but for my part there is no problem.

Hi D,
I went through your CODE and changed the SSP1CON1 toSSPCON1. They look the same in both D/S.
As mentioned your CODE stops due to the LCD_INIT.
Well done with the commenting, it helps a lot.
C.

camerart · 2024-11-25T04:55:59-0800

Ian Rogers said:
Hi C.

Post me your current code. I'll see what gives..

Which code do you want on AAC?

Hi I and D,
I'll post the CODE later, but it is set up to use my PCB which has a crystal controlling the osc.
Earlier I offered that I post you one of my PCBs (Also you D) no problem if you prefer your electronics.

I hoped to use your CODE body, within my set up, which is working and I can change some of the settings, but not MADCTL.
C.

DogFlu66 · 2024-11-25T05:06:56-0800

I'm leaving work now, if nothing unexpected happens I'll send you the modified TFT library and test program.

Ian Rogers · 2024-11-25T05:09:56-0800

Hi C,

If the program stops at LCD init, then the I2C is struggling...

Run the I2C at 4Mhz until you get the thing sorted Mine is at 8Mhz so just increase the speed by 1

ie instead of SSPCON1 = 0x30 use SSPCON1 = 0x31

Ian Rogers · 2024-11-25T05:11:06-0800

Also... Where are you at C.. I'm in Oldham just send me your board and I'll check it out!

DogFlu66 · 2024-11-25T06:29:27-0800

Here is the version for the ST7789, the library and the test program for the Pic18F46k22.
But this is not the final one, I am preparing another more complete one.
You will have to change the oscillator settings for your micro.

camerart · 2024-11-25T08:08:00-0800

Hi,
This is the Ian's/my working CODE I would like to post on AAC.
Is it ok?
C

Code:

'18F46K20 32MHz XTL PCB_9 BASE_MASTER TFT ME TEST 241124 1600
Define CONFIG1L = 0x00
Define CONFIG1H = 0x06  '6= EXT8 MHz XPLL = 32 MHZ
Define CONFIG2L = 0x0E 'BORV Set to 2.7V  (SBOREN?)
Define CONFIG2H = 0x00
Define CONFIG3L = 0x00
Define CONFIG3H = 0x81  'Set for HVP
Define CONFIG4L = 0x80
Define CONFIG4H = 0x00
Define CONFIG5L = 0x0f
Define CONFIG5H = 0xc0
Define CONFIG6L = 0x0f
Define CONFIG6H = 0xe0
Define CONFIG7L = 0x0f
Define CONFIG7H = 0x40
Define CLOCK_FREQUENCY = 32

'OSH config
Define SINGLE_DECIMAL_PLACES = 2
Define STRING_MAX_LENGTH = 20

'IO MAP
'SET BITS ON/OFF before TRIS!
Const LATAinit = %00000000  'ON/OFF
Const LATBinit = %00000000
Const LATCinit = %00000000
Const LATDinit = %00000000
Const LATEinit = %00000000

'SET PIN IN/OUT
Const TRISAinit = %00000000
Const TRISBinit = %00000000
Const TRISCinit = %00010000
Const TRISDinit = %00000000
Const TRISEinit = %00000000

'Define SIMULATION_WAITMS_VALUE = 1  'Comment in for SIM out for PIC

Define SEROUT_DELAYUS = 1000

Disable High
Disable Low

'Init LATx flip flops before TRIS regs
LATA = LATAinit
LATB = LATBinit
LATC = LATCinit
LATD = LATDinit
LATE = LATEinit

TRISA = TRISAinit
TRISB = TRISBinit
TRISC = TRISCinit
TRISD = TRISDinit
TRISE = TRISEinit


'START UP LEDS
rled = 1
WaitMs 1000
rled = 0
WaitMs 1000
rled = 1
WaitMs 1000
rled = 0
WaitMs 1000

TFT_LED = 1 'Switch screen light on


'*****************************************************
'lcd driver

Const ILI9341_NOP = 0x00
Const ILI9341_SWRESET = 0x01
Const ILI9341_RDDID = 0x04
Const ILI9341_RDDST = 0x09

Const ILI9341_SLPIN = 0x10
Const ILI9341_SLPOUT = 0x11
Const ILI9341_PTLON = 0x12
Const ILI9341_NORON = 0x13

Const ILI9341_INVOFF = 0x20
Const ILI9341_INVON = 0x21
Const ILI9341_DISPOFF = 0x28
Const ILI9341_DISPON = 0x29
Const ILI9341_CASET = 0x2a
Const ILI9341_RASET = 0x2b
Const ILI9341_RAMWR = 0x2c
Const ILI9341_RAMRD = 0x2e

Const ILI9341_PTLAR = 0x30
Const ILI9341_COLMOD = 0x3a
Const ILI9341_MADCTL = 0x00 '0x28 '0x80 '0x08 '0x26 '0x36 '00110110 4=INVERSE? =26'

Const ILI9341_DISp_FUNC = 0xB6

Const ILI9341_MADCTL_MY = 0x80
Const ILI9341_MADCTL_MX = 0x40
Const ILI9341_MADCTL_MV = 0x60 '0x20
Const ILI9341_MADCTL_ML = 0x3C '0x01 |
Const ILI9341_MADCTL_RGB = 0x01

Const IL19341_MADCTL_MH = 0x38 '|

Const ILI9341_RDID1 = 0xda
Const ILI9341_RDID2 = 0xdb
Const ILI9341_RDID3 = 0xdc
Const ILI9341_RDID4 = 0xdd


Const LCD_BLACK = 0x0000
Const LCD_RED = 0xf800 '0x001f
Const LCD_BLUE =  0x001f' 0xf800
Const LCD_GREEN = 0x07E0
Const LCD_YELLOW = 0xffe0'0x07ff
Const LCD_MAGENTA = 0xf81f
Const LCD_CYAN = 0x07ff '0xffe0
Const LCD_WHITE = 0xffff

Dim LCD_width As Word  ///< Display width as modified by current rotation
Dim LCD_height As Word  ///< Display height as modified by current rotation

Dim LCD_rotation As Byte  ///< Display rotation (0 thru 3)

Symbol TFT_RST = LATC.0  'RST RESET pin
Symbol TFT_DC = LATC.1  'DC (SS) Data/Command pin
Symbol TFT_CS = LATC.2  'CS Chip Select pin
Symbol TFT_SCK = LATC.3  'SCK as output
Symbol TFT_SDI = LATC.4  'SDI as input -> SDO
Symbol TFT_SDO = LATC.5  'SDO as output -> SDI

Symbol TFT_LED = LATD.3 'Screen backlight
Symbol rled = LATE.2 'Red LED
'*************************************************
Dim str As String
Dim x As Byte
'OSCCON = 0x60
'OSCTUNE.PLLEN = 1
TRISA.1 = 0
TRISC = 0
TRISD = 0
TRISE = 0
ADCON1 = 15

TFT_LED = 1 'Switch screen light on

Call init_spi() 'Call SPI_init()
Call LCD_init()

str = "HELLO WORLD"
Main:

Toggle rled

    x = 1
    While x = 1

    'WaitMs 300
    'LATA.1 = 1
    'Call fillScreen(LCD_RED)
    'WaitMs 300
    'LATA.1 = 0
    Call fillwindow(00,00,320,240, LCD_WHITE)
    WaitMs 300
    LATA.1 = 1
    Call fillwindow(00,00,320,240, LCD_BLUE)
    WaitMs 300
    LATA.1 = 0

    'Call fillScreen(LCD_WHITE)
    'Call LCD_DrawLine(320,240,01,01,LCD_GREEN)
    'Call fillScreen(LCD_MAGENTA)
    'Call LCD_DrawLine(05,01,320,240,LCD_BLUE)

    'Call LCD_DrawLine(230,10,10,230,LCD_BLACK)
    'Call LCD_DrawLine(10,120,230,120,LCD_BLACK)
    'Call LCD_DrawLine(120,10,120,230,LCD_BLACK)

    'Call LCD_Circle(120,120,100,LCD_BLUE)
    'Call fillwindow(60,50,180,190, LCD_WHITE)
    'Call LCD_DrawRectangle(60,50,180,190,LCD_BLACK)
    'str = "Draw direction"
    'Call LCD_String( str,30,110, LCD_BLACK, LCD_GREEN) '(STRING,ACROSS-START,ACROSS-END, CHARACTERS, SCREEN)

    WaitMs 2000

Wend
End

'Proc SPI_init()
'SSPSTAT = 0x40
'SSPCON1 = 0x30
'End Proc

Proc LCD_WRITE_COM(dat As Byte)
    TFT_CS = 0
    TFT_DC = 0
    SSPBUF = dat
    While SSPSTAT.BF = 0
    Wend
    TFT_DC = 1
    TFT_CS = 1

End Proc

Proc LCD_WRITE_DATA(dat As Byte)
    TFT_CS = 0
    TFT_DC = 1
    SSPBUF = dat
    While SSPSTAT.BF = 0
    Wend
    TFT_DC = 1
    TFT_CS = 1

End Proc

Proc LCD_init()

Dim idx As Byte
Dim cmd As Byte
    High TFT_RST
    'ConfigPin TFT_RST = Output
    WaitMs 100
    Low TFT_RST
    WaitMs 100
    High TFT_RST
    WaitMs 200

    Call LCD_WRITE_COM(ILI9341_SWRESET)
    WaitMs 150
    Call LCD_WRITE_COM(ILI9341_DISPOFF)
    Call LCD_WRITE_COM(0xCB)     //Power control a
    Call LCD_WRITE_DATA(0x39)
    Call LCD_WRITE_DATA(0x2C)
    Call LCD_WRITE_DATA(0x00)
    Call LCD_WRITE_DATA(0x34)
    Call LCD_WRITE_DATA(0x02)
    WaitMs 1
    Call LCD_WRITE_COM(0xCF)    //Power control b
    Call LCD_WRITE_DATA(0x00)
    Call LCD_WRITE_DATA(0XC1)
    Call LCD_WRITE_DATA(0X30)
    WaitMs 1
    Call LCD_WRITE_COM(0xE8)    //Timing control a
    Call LCD_WRITE_DATA(0x85)
    Call LCD_WRITE_DATA(0x10)
    Call LCD_WRITE_DATA(0x78)
    WaitMs 1
    Call LCD_WRITE_COM(0xEA)    //Timing control b
    Call LCD_WRITE_DATA(0x00)
    Call LCD_WRITE_DATA(0x00)
    WaitMs 1
    Call LCD_WRITE_COM(0xED)    //Power on seq control
    Call LCD_WRITE_DATA(0x64)
    Call LCD_WRITE_DATA(0x03)
    Call LCD_WRITE_DATA(0X12)
    Call LCD_WRITE_DATA(0X81)

    WaitMs 1
    Call LCD_WRITE_COM(0xC0)    //Power control 1
    Call LCD_WRITE_DATA(0x26)  //VRH[5:0]
    WaitMs 1
    Call LCD_WRITE_COM(0xC1)    //Power control 2
    Call LCD_WRITE_DATA(0x11)   //SAP[2:0];BT[3:0]
    WaitMs 1
    Call LCD_WRITE_COM(0xC5)    //VCM control
    Call LCD_WRITE_DATA(0x3e)   //Contrast
    Call LCD_WRITE_DATA(0x28)
    WaitMs 1
    Call LCD_WRITE_COM(0xF7)
    Call LCD_WRITE_DATA(0x20)
    WaitMs 1
    Call LCD_WRITE_COM(ILI9341_MADCTL)
    Call LCD_WRITE_DATA(0x80) '(0x3C) '(0x8)|
    Call LCD_WRITE_COM(ILI9341_INVOFF)'(ILI9341_INVON)
    WaitMs 1
    Call LCD_WRITE_COM(ILI9341_NORON)
    WaitMs 1
    Call LCD_WRITE_COM(ILI9341_COLMOD )
    Call LCD_WRITE_DATA(0x55)
    WaitMs 1
    Call LCD_WRITE_COM(0xB7) //emtry mode
    Call LCD_WRITE_DATA(0x07)
    Call LCD_WRITE_COM(0x3A) //pixel format
    Call LCD_WRITE_DATA(0x55) //16bit
    Call LCD_WRITE_COM(ILI9341_DISp_FUNC)    // Display Function Control
    Call LCD_WRITE_DATA(0x08)
    Call LCD_WRITE_DATA(0x82)
    Call LCD_WRITE_DATA(0x27)
    WaitMs 1
    Call LCD_WRITE_COM(ILI9341_SLPOUT)
    WaitMs 120
    Call LCD_WRITE_COM(ILI9341_DISPON)
    WaitMs 1

    LCD_height = 240
    LCD_width = 320 '240

End Proc

'/**************************************************************************/
'@brief  SPI displays set an address window rectangle For blitting pixels
'@param  x  Top left corner x coordinate
'@param  y  Top left corner x coordinate
'@param  W  Width of window
'@param  h  Height of window
'/**************************************************************************/
Proc setAddrWindow(x1 As Word, y1 As Word, x2 As Word, y2 As Word)

Call LCD_WRITE_COM(ILI9341_CASET)  //Column addr set
Call LCD_WRITE_DATA(x1.HB)
Call LCD_WRITE_DATA(x1.LB)
Call LCD_WRITE_DATA(x2.HB)
Call LCD_WRITE_DATA(x2.LB)
Call LCD_WRITE_COM(ILI9341_RASET)  //Row addr set
Call LCD_WRITE_DATA(y1.HB)
Call LCD_WRITE_DATA(y1.LB)
Call LCD_WRITE_DATA(y2.HB)
Call LCD_WRITE_DATA(y2.LB)

Call LCD_WRITE_COM(ILI9341_RAMWR)  //write to RAM
End Proc
Proc LCD_DrawLine(x1 As Word, y1 As Word, x2 As Word, y2 As Word, color As Word)

    Dim t As Word
    Dim xerr, yerr, delta_x, delta_y, distance As Integer
    Dim incx, incy, xPix, yPix As Integer
    xerr = 0
    yerr = 0

    delta_x = x2 - x1
    delta_y = y2 - y1
    xPix = x1
    yPix = y1

    If delta_x > 0 Then    incx = 1
    If delta_x = 0 Then incx = 0
    If delta_x < 0 Then
        incx = -1
        delta_x = -delta_x
    Endif

    If delta_y > 0 Then    incy = 1
    If delta_y = 0 Then incy = 0
    If delta_y < 0 Then
        incy = -1
        delta_y = -delta_y
    Endif


    If delta_x > delta_y Then
        distance = delta_x
    Else
        distance = delta_y
    Endif

    For t = 0 To distance + 1 Step 1
         Call LCD_DrawPoint(xPix, yPix, color)
        xerr = xerr + delta_x
        yerr = yerr + delta_y
        If xerr > distance Then
            xerr = xerr - distance
            xPix = xPix + incx
        Endif
        If  yerr > distance Then
            yerr = yerr - distance
            yPix = yPix + incy
        Endif
    Next t
End Proc
Proc LCD_Char( char As Byte, x As Word, y As Word, fcol As Word , bcol As Word)

    Dim  x0 As Integer
    Dim idx, idx2 As Byte
    Dim mask As Byte

    For idx = 0 To 9 Step 1
        mask = _LCDFnt(char, idx)
        For idx2 = 0 To 13 Step 2
            If mask And 0x80 Then
                Call LCD_DrawPoint(x+idx2, y, fcol)
                Call LCD_DrawPoint(x+idx2+1, y, fcol)
                Call LCD_DrawPoint(x+idx2, y+1, fcol)
                Call LCD_DrawPoint(x+idx2+1, y+1, fcol)
            Else
                Call LCD_DrawPoint(x+idx2, y, bcol)
                Call LCD_DrawPoint(x+idx2+1, y, bcol)
                Call LCD_DrawPoint(x+idx2, y+1, bcol)
                Call LCD_DrawPoint(x+idx2+1, y+1, bcol)
            Endif
            mask = ShiftLeft(mask,1)
        Next idx2
        y = y + 2
    Next idx

End Proc
Proc LCD_String( str As String, x As Word, y As Word, fcol As Word , bcol As Word)

Dim idx As Byte
Dim x0 As Word
idx = 0

    While str(idx) <> 0
        Call LCD_Char(str(idx), x, y,fcol,bcol)
        x = x+18
        idx = idx + 1
    Wend

End Proc
// Rectangle

Proc LCD_DrawRectangle( x1 As Integer, y1 As Integer, x2 As Integer, y2 As Integer, color As Word)

    Call LCD_DrawLine(x1, y1, x2, y1, color)
    Call LCD_DrawLine(x1, y1, x1, y2, color)
    Call LCD_DrawLine(x1, y2, x2, y2, color)
    Call LCD_DrawLine(x2, y1, x2, y2, color)

End Proc
//   Circle routine

Proc LCD_Circle(x1 As Word, y1 As Word, rad As Word, color As Word)
Dim xPix, yPix, di As Integer
xPix = 0
yPix = rad
di = 3 - ShiftLeft(rad,1)
    While xPix <= yPix

    Call LCD_DrawPoint(x1+xPix, y1-yPix, color)
    Call LCD_DrawPoint(x1+yPix, y1-xPix, color)
    Call LCD_DrawPoint(x1+yPix, y1+xPix, color)
    Call LCD_DrawPoint(x1+xPix, y1+yPix, color)
    Call LCD_DrawPoint(x1-xPix, y1+yPix, color)
    Call LCD_DrawPoint(x1-yPix, y1+xPix, color)
    Call LCD_DrawPoint(x1-xPix, y1-yPix, color)
    Call LCD_DrawPoint(x1-yPix, y1-xPix, color)
    xPix = xPix + 1

    If di < 0 Then
        di= (4 * xPix + 6) + di
    Else
        di= (10 + 4 * (xPix-yPix)) + di
        yPix = yPix - 1
    Endif
    Wend

End Proc
// line drawing

Proc LCD_DrawPoint(x1 As Word, y1 As Word ,color As Word)

    Call LCD_WRITE_COM(ILI9341_CASET)  //Column addr set
    Call LCD_WRITE_DATA(x1.HB)
    Call LCD_WRITE_DATA(x1.LB)
    Call LCD_WRITE_COM(ILI9341_RASET)  //Row addr set
    Call LCD_WRITE_DATA(y1.HB)
    Call LCD_WRITE_DATA(y1.LB)
    Call LCD_WRITE_COM(ILI9341_RAMWR)  //write to RAM

    Call LCD_WRITE_DATA(color.HB)
    Call LCD_WRITE_DATA(color.LB)

End Proc

'/**************************************************************************/
Proc fillRect(x1 As Word, y1 As Word, x2 As Word, y2 As Word, color As Word)
Dim px As Long
Dim tmp As Word
If x2 > 0 And y2 > 0 Then      //Nonzero width and height?

    Call setAddrWindow(x1, y1, x2, y2)

    px = x2
    px = px * y2
    TFT_CS = 0
    TFT_DC = 1
    While px > 1
        SSPBUF = color.HB
        While SSPSTAT.BF = 0
        Wend
        SSPBUF = color.LB
        While SSPSTAT.BF = 0
        Wend
        px = px - 1
    Wend
    TFT_DC = 1
    TFT_CS = 1
    Endif
End Proc

'/**************************************************************************/
'@brief    Fill the screen completely with one color. Update in subclasses If desired!
'@param    color 16-Bit 5-6-5 Color To fill with
'/**************************************************************************/
Proc fillScreen(color As Word)
Call fillRect(0, 0, LCD_width, LCD_height, color)
End Proc
Proc fillwindow(x1 As Word,y1 As Word,x2 As Word,y2 As Word,color As Word)
Call fillRect(x1, y1, x2, y2, color)
End Proc
Function _LCDFnt(ch As Byte, idx As Byte) As Byte
    Symbol Retval = _LCDFnt

            Select Case ch
                Case " "
                    Retval = LookUp(0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00), idx  //SPACE
                Case "!"
                    Retval = LookUp(0x00, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x00, 0x08, 0x00), idx  //!
                Case 34
                    Retval = LookUp(0x00, 0x14, 0x14, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00), idx  // "
                Case "#"
                    Retval = LookUp(0x00, 0x12, 0x12, 0x7f, 0x24, 0x24, 0xfe, 0x48, 0x48, 0x00), idx  //#
                Case "$"
                    Retval = LookUp(0x00, 0x10, 0x7c, 0x92, 0x70, 0x1c, 0x92, 0x7c, 0x10, 0x00), idx  //$
                Case "%"
                    Retval = LookUp(0x00, 0x41, 0xa2, 0x44, 0x08, 0x10, 0x22, 0x45, 0x82, 0x00), idx  //%
                Case "&"
                    Retval = LookUp(0x00, 0x10, 0x28, 0x10, 0x28, 0x44, 0x43, 0x42, 0x39, 0x00), idx  //&
                Case "'"
                    Retval = LookUp(0x00, 0x10, 0x10, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00), idx  //'
                Case "("
                    Retval = LookUp(0x00, 0x08, 0x10, 0x20, 0x20, 0x20, 0x20, 0x10, 0x08, 0x00), idx  //(
                Case ")"
                    Retval = LookUp(0x00, 0x08, 0x04, 0x02, 0x02, 0x02, 0x20, 0x04, 0x08, 0x00), idx  //)
                Case "*"
                    Retval = LookUp(0x00, 0x08, 0x2a, 0x1c, 0x7f, 0x1c, 0x2a, 0x08, 0x00, 0x00), idx  //*
                Case "+"
                    Retval = LookUp(0x00, 0x00, 0x00, 0x00, 0x00, 0x3e, 0x08, 0x08, 0x00, 0x00), idx  //+
                Case ","
                    Retval = LookUp(0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08, 0x08, 0x10, 0x00), idx  //,
                Case "-"
                    Retval = LookUp(0x00, 0x00, 0x00, 0x00, 0x00, 0x3e, 0x00, 0x00, 0x00, 0x00), idx  //-
                Case "."
                    Retval = LookUp(0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08, 0x08, 0x00), idx  //.
                Case "/"
                    Retval = LookUp(0x00, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x00), idx  ///
                Case "0"
                    Retval = LookUp(0x00, 0x3c, 0x46, 0x4a, 0x4a, 0x52, 0x52, 0x62, 0x3c, 0x00), idx  //0
                Case "1"
                    Retval = LookUp(0x00, 0x08, 0x18, 0x08, 0x08, 0x08, 0x08, 0x08, 0x3e, 0x00), idx  //1
                Case "2"
                    Retval = LookUp(0x00, 0x3c, 0x42, 0x02, 0x0c, 0x30, 0x40, 0x40, 0x7e, 0x00), idx  //2
                Case "3"
                    Retval = LookUp(0x00, 0x3c, 0x42, 0x02, 0x0c, 0x02, 0x02, 0x42, 0x3c, 0x00), idx  //3
                Case "4"
                    Retval = LookUp(0x00, 0x09, 0x18, 0x28, 0x48, 0x48, 0x7e, 0x08, 0x08, 0x00), idx  //4
                Case "5"
                    Retval = LookUp(0x00, 0x7e, 0x40, 0x40, 0x7c, 0x02, 0x02, 0x42, 0x3c, 0x00), idx  //5
                Case "6"
                    Retval = LookUp(0x00, 0x3c, 0x42, 0x40, 0x7c, 0x42, 0x42, 0x42, 0x3c, 0x00), idx  //6
                Case "7"
                    Retval = LookUp(0x00, 0x7e, 0x02, 0x02, 0x04, 0x08, 0x10, 0x10, 0x10, 0x00), idx  //7
                Case "8"
                    Retval = LookUp(0x00, 0x3c, 0x42, 0x42, 0x3c, 0x42, 0x42, 0x42, 0x3c, 0x00), idx  //8
                Case "9"
                    Retval = LookUp(0x00, 0x3c, 0x42, 0x42, 0x3e, 0x02, 0x02, 0x42, 0x3c, 0x00), idx  //9
                Case ":"
                    Retval = LookUp(0x00, 0x00, 0x00, 0x08, 0x08, 0x00, 0x08, 0x08, 0x00, 0x00), idx  //:
                Case ";"
                    Retval = LookUp(0x00, 0x00, 0x00, 0x08, 0x08, 0x00, 0x08, 0x08, 0x10, 0x00), idx  //;
                Case "<"
                    Retval = LookUp(0x00, 0x04, 0x08, 0x10, 0x20, 0x20, 0x10, 0x08, 0x04, 0x00), idx  //<
                Case "="
                    Retval = LookUp(0x00, 0x00, 0x00, 0x00, 0x3e, 0x00, 0x3e, 0x00, 0x00, 0x00), idx  //=
                Case ">"
                    Retval = LookUp(0x00, 0x10, 0x08, 0x04, 0x02, 0x02, 0x04, 0x08, 0x10, 0x00), idx  //>
                Case "?"
                    Retval = LookUp(0x00, 0x3c, 0x42, 0x02, 0x04, 0x08, 0x08, 0x00, 0x08, 0x00), idx  //?
                Case "@"
                    Retval = LookUp(0x00, 0x7e, 0x81, 0x9b, 0xa5, 0xa6, 0x9c, 0x81, 0x7e, 0x00), idx  //@
                Case "A"
                    Retval = LookUp(0x00, 0x18, 0x24, 0x42, 0x42, 0x7e, 0x42, 0x42, 0x42, 0x00), idx  //A
                Case "B"
                    Retval = LookUp(0x00, 0x7c, 0x42, 0x42, 0x7c, 0x42, 0x42, 0x42, 0x7c, 0x00), idx  //B
                Case "C"
                    Retval = LookUp(0x00, 0x3c, 0x42, 0x40, 0x40, 0x40, 0x40, 0x42, 0x3c, 0x00), idx  //C
                Case "D"
                    Retval = LookUp(0x00, 0x7c, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x7c, 0x00), idx  //D
                Case "E"
                    Retval = LookUp(0x00, 0x7e, 0x40, 0x40, 0x78, 0x40, 0x40, 0x40, 0x7e, 0x00), idx  //E
                Case "F"
                    Retval = LookUp(0x00, 0x7e, 0x40, 0x40, 0x78, 0x40, 0x40, 0x40, 0x40, 0x00), idx  //F
                Case "G"
                    Retval = LookUp(0x00, 0x3c, 0x42, 0x40, 0x40, 0x46, 0x42, 0x42, 0x3c, 0x00), idx  //G
                Case "H"
                    Retval = LookUp(0x00, 0x42, 0x42, 0x42, 0x7e, 0x42, 0x42, 0x42, 0x42, 0x00), idx  //H
                Case "I"
                    Retval = LookUp(0x00, 0x7e, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x7e, 0x00), idx  //I
                Case "J"
                    Retval = LookUp(0x00, 0x7e, 0x08, 0x08, 0x08, 0x08, 0x08, 0x48, 0x30, 0x00), idx  //J
                Case "K"
                    Retval = LookUp(0x00, 0x42, 0x44, 0x48, 0x70, 0x48, 0x44, 0x42, 0x42, 0x00), idx  //K
                Case "L"
                    Retval = LookUp(0x00, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x7e, 0x00), idx  //L
                Case "M"
                    Retval = LookUp(0x00, 0x42, 0x42, 0x66, 0x5a, 0x42, 0x42, 0x42, 0x42, 0x00), idx  //M
                Case "N"
                    Retval = LookUp(0x00, 0x42, 0x42, 0x62, 0x52, 0x4a, 0x46, 0x42, 0x42, 0x00), idx  //N
                Case "O"
                    Retval = LookUp(0x00, 0x3c, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x3c, 0x00), idx  //O
                Case "P"
                    Retval = LookUp(0x00, 0x7c, 0x42, 0x42, 0x7c, 0x40, 0x40, 0x40, 0x40, 0x00), idx  //P
                Case "Q"
                    Retval = LookUp(0x00, 0x3c, 0x42, 0x42, 0x42, 0x42, 0x4a, 0x46, 0x3e, 0x00), idx  //Q
                Case "R"
                    Retval = LookUp(0x00, 0x7c, 0x42, 0x42, 0x7c, 0x48, 0x44, 0x42, 0x42, 0x00), idx  //R
                Case "S"
                    Retval = LookUp(0x00, 0x3c, 0x42, 0x40, 0x30, 0x0c, 0x02, 0x42, 0x3c, 0x00), idx  //S
                Case "T"
                    Retval = LookUp(0x00, 0x7e, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x00), idx  //T
                Case "U"
                    Retval = LookUp(0x00, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x3c, 0x00), idx  //U
                Case "V"
                    Retval = LookUp(0x00, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x24, 0x18, 0x00), idx  //V
                Case "W"
                    Retval = LookUp(0x00, 0x42, 0x42, 0x42, 0x42, 0x42, 0x5a, 0x66, 0x42, 0x00), idx  //W
                Case "X"
                    Retval = LookUp(0x00, 0x42, 0x42, 0x24, 0x18, 0x18, 0x24, 0x42, 0x42, 0x00), idx  //X
                Case "Y"
                    Retval = LookUp(0x00, 0x42, 0x42, 0x24, 0x18, 0x05, 0x08, 0x08, 0x08, 0x00), idx  //Y
                Case "Z"
                    Retval = LookUp(0x00, 0x7e, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x7e, 0x00), idx  //Z
                Case "["
                    Retval = LookUp(0x00, 0x3c, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x3c, 0x00), idx  //[
                Case "\"
                    Retval = LookUp(0x00, 0x80, 0x40, 0x20, 0x10, 0x08, 0x04, 0x02, 0x01, 0x00), idx  //\
                Case "]"
                    Retval = LookUp(0x00, 0x3c, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x3c, 0x00), idx  //]
                Case "^"
                    Retval = LookUp(0x00, 0x08, 0x14, 0x22, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00), idx  //^
                Case "_"
                    Retval = LookUp(0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7f, 0x00), idx  //_
                Case "`"
                    Retval = LookUp(0x00, 0x10, 0x10, 0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00), idx  //`
                Case "a"
                    Retval = LookUp(0x00, 0x00, 0x00, 0x1c, 0x02, 0x1e, 0x22, 0x22, 0x1e, 0x00), idx  //a
                Case "b"
                    Retval = LookUp(0x00, 0x20, 0x20, 0x3c, 0x22, 0x22, 0x22, 0x22, 0x3c, 0x00), idx  //b
                Case "c"
                    Retval = LookUp(0x00, 0x00, 0x00, 0x1c, 0x22, 0x20, 0x20, 0x22, 0x1c, 0x00), idx  //c
                Case "d"
                    Retval = LookUp(0x00, 0x02, 0x02, 0x1e, 0x22, 0x22, 0x22, 0x22, 0x1e, 0x00), idx  //d
                Case "e"
                    Retval = LookUp(0x00, 0x00, 0x00, 0x1c, 0x22, 0x3e, 0x20, 0x22, 0x1c, 0x00), idx  //e
                Case "f"
                    Retval = LookUp(0x00, 0x0c, 0x10, 0x10, 0x3c, 0x10, 0x10, 0x10, 0x10, 0x00), idx  //f
                Case "g"
                    Retval = LookUp(0x00, 0x00, 0x00, 0x1e, 0x22, 0x22, 0x22, 0x1e, 0x02, 0x3c), idx  //g
                Case "h"
                    Retval = LookUp(0x00, 0x20, 0x20, 0x3c, 0x22, 0x22, 0x22, 0x22, 0x22, 0x00), idx  //h
                Case "i"
                    Retval = LookUp(0x00, 0x08, 0x00, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x00), idx  //i
                Case "j"
                    Retval = LookUp(0x00, 0x08, 0x00, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x30), idx  //j
                Case "k"
                    Retval = LookUp(0x00, 0x20, 0x20, 0x22, 0x24, 0x38, 0x24, 0x22, 0x22, 0x00), idx  //k
                Case "l"
                    Retval = LookUp(0x00, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x18, 0x00), idx  //l
                Case "m"
                    Retval = LookUp(0x00, 0x00, 0x00, 0x22, 0x36, 0x2a, 0x22, 0x22, 0x22, 0x00), idx  //m
                Case "n"
                    Retval = LookUp(0x00, 0x00, 0x00, 0x3c, 0x22, 0x22, 0x22, 0x22, 0x22, 0x00), idx  //n
                Case "o"
                    Retval = LookUp(0x00, 0x00, 0x00, 0x1c, 0x22, 0x22, 0x22, 0x22, 0x1c, 0x00), idx  //o
                Case "p"
                    Retval = LookUp(0x00, 0x00, 0x00, 0x7c, 0x14, 0x14, 0x14, 0x08, 0x00, 0x00), idx  //p
                Case "q"
                    Retval = LookUp(0x00, 0x00, 0x00, 0x3c, 0x22, 0x22, 0x22, 0x3c, 0x20, 0x20), idx  //q
                Case "r"
                    Retval = LookUp(0x00, 0x00, 0x00, 0x2e, 0x30, 0x20, 0x20, 0x20, 0x20, 0x00), idx  //r
                Case "s"
                    Retval = LookUp(0x00, 0x00, 0x00, 0x1c, 0x22, 0x10, 0x0c, 0x22, 0x1c, 0x00), idx  //s
                Case "t"
                    Retval = LookUp(0x00, 0x10, 0x10, 0x38, 0x10, 0x10, 0x10, 0x12, 0x0c, 0x00), idx  //t
                Case "u"
                    Retval = LookUp(0x00, 0x00, 0x00, 0x22, 0x22, 0x22, 0x22, 0x22, 0x1c, 0x00), idx  //u
                Case "v"
                    Retval = LookUp(0x00, 0x00, 0x00, 0x22, 0x22, 0x22, 0x22, 0x14, 0x08, 0x00), idx  //v
                Case "w"
                    Retval = LookUp(0x00, 0x00, 0x00, 0x22, 0x22, 0x22, 0x2a, 0x36, 0x22, 0x00), idx  //w
                Case "x"
                    Retval = LookUp(0x00, 0x00, 0x00, 0x22, 0x14, 0x08, 0x14, 0x22, 0x22, 0x00), idx  //x
                Case "y"
                    Retval = LookUp(0x00, 0x00, 0x00, 0x22, 0x22, 0x22, 0x22, 0x1e, 0x02, 0x3c), idx  //y
                Case "z"
                    Retval = LookUp(0x00, 0x00, 0x00, 0x3e, 0x02, 0x04, 0x08, 0x10, 0x3e, 0x00), idx  //z
                Case "{"
                    Retval = LookUp(0x00, 0x04, 0x08, 0x08, 0x08, 0x10, 0x08, 0x08, 0x08, 0x04), idx  //{
                Case "|"
                    Retval = LookUp(0x00, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x00), idx  //|
                Case "}"
                    Retval = LookUp(0x00, 0x10, 0x08, 0x08, 0x08, 0x04, 0x08, 0x08, 0x08, 0x10), idx  //}
                Case "~"
                    Retval = LookUp(0x00, 0x00, 0x00, 0x00, 0xcc, 0x33, 0x00, 0x00, 0x00, 0x00), idx  //~
                Case 165 '"Ã‘" + chr(165) +
                    Retval = LookUp(0x00, 0x00, 0x00, 0x7e, 0x05, 0x09, 0x11, 0x7e), idx  //Ã‘
                Case 164'"Ã±" + chr(164) +
                    Retval = LookUp(0x00, 0x00, 0x00, 0x78, 0x12, 0x0a, 0x0a, 0x70), idx  //Ã±
            EndSelect

End Function
'###################################################################

'*******************************************************
'*                                                     *
'*            START UP SPI ROUTINE                     *
'*                                                     *
'*******************************************************
Proc init_spi()  'PIC 18F46K20
TRISC.3 = 0  'SCK to Slave ****** output *******
TRISC.5 = 0  'MOSI  ****** output *******
TRISC.4 = 1  'MISO  ****** input *******

'MODE 0,0???
SSPSTAT.SMP = 0  'Input data sampled at middle of data output time ** not about clock generation **
SSPSTAT.CKE = 1  'CHANGED to 1 [0 Output data changes on clock transition from active to idle ** AS ABOVE **]
SSPSTAT.5 = 0  'I2C only
SSPSTAT.4 = 0  'I2C only
SSPSTAT.3 = 0  'I2C only
SSPSTAT.2 = 0  'I2C only
SSPSTAT.1 = 0  'I2C only

SSPCON1 = 0  'RESET THE CONTROL REGISTER **************************************ADDED
SSPCON1.WCOL = 0  'Collision detect
SSPCON1.SSPOV = 0  'Overflow
SSPCON1.SSPEN = 1  'Configure SCK,SD0,SDI,/SS ** HAS TO BE 1. To reset or reconfigure SPI mode, clear the SSPEN bit,
'reinitialize the sspcon registers And Then set the SSPEN Bit from the datasheet !!!!!!!!!!!!!!!!
SSPCON1.CKP = 1  '= idle state For clock is A HIGH level
SSPCON1.SSPM3 = 0  '0010 = SPI Master mode, clock = FOSC/64
SSPCON1.SSPM2 = 0
SSPCON1.SSPM1 = 1  'MASTER MODE
SSPCON1.SSPM0 = 0
End Proc

camerart · 2024-11-25T08:10:46-0800

Ian Rogers said:
Hi C,

If the program stops at LCD init, then the I2C is struggling...

Run the I2C at 4Mhz until you get the thing sorted Mine is at 8Mhz so just increase the speed by 1

ie instead of SSPCON1 = 0x30 use SSPCON1 = 0x31

Hi I,
I'm a bit confused, as I have no experience with i2c, as I think I only have SPI settings?
C

camerart · 2024-11-25T08:11:37-0800

Ian Rogers said:
Also... Where are you at C.. I'm in Oldham just send me your board and I'll check it out!

Hi I,
I'll PM you.
C

DogFlu66 · 2024-11-25T12:38:33-0800

Don't be confused, these TFT LCDs use the SPI bus.

How many MHz is the crystal you use?

Welcome to our site!

Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

Display TFT ST7789 (OshonSoft Basic).

DogFlu66

Member

Attachments

camerart

Well-Known Member

Ian Rogers

User Extraordinaire

DogFlu66

Member

camerart

Well-Known Member

camerart

Well-Known Member

DogFlu66

Member

Ian Rogers

User Extraordinaire

Ian Rogers

User Extraordinaire

DogFlu66

Member

Attachments

camerart

Well-Known Member

camerart

Well-Known Member

camerart

Well-Known Member

DogFlu66

Member

Similar threads

Latest threads

New Articles From Microcontroller Tips