Please help 18F252 programming

P

peterzatko

New Member

• Sep 29, 2011

• #1

I have problem with programming .Code is in mikroBasic Pro see attachment.Its program with logicall function.In proteus work hex good but when i burn hex to pic18F252 and get them to pcb ,pic not working.On the start must be two leds switch on.But nothing.On pin 1 is 5V and other supply are OK.In Proteus is OK.When I burn pic LVP is disabled.

 

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• Logic gates generator.asm

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Last edited: Sep 29, 2011

magnatro

New Member

• Sep 29, 2011

• #2

are you using internal rc oscillator or external crystal? about 90% of problems are with config bits and clock .

 

P

peterzatko

New Member

• Sep 29, 2011

• #3

internal osc .and i dont know how settin get to config bit

 

magnatro

New Member

• Sep 29, 2011

• #4

refer to the data sheet for config bits.

 

P

peterzatko

New Member

• Sep 29, 2011

• #5

see you my attachment ?

 

magnatro

New Member

• Sep 29, 2011

• #6

yeah, mikro C generate hex files which has no config bits. which programmer do you use? is its pickit?

 

P

peterzatko

New Member

• Sep 29, 2011

• #7

Sorry i m begginer ,i dont see how to set internal oscillator in datasheet

 

P

peterzatko

New Member

• Sep 29, 2011

• #8

preprom 02aLV + PIC programator

 

magnatro

New Member

• Sep 29, 2011

• #9

how do you program the pic? which programmer are you using? is it the programmer that comes with mikro basic?

 

P

peterzatko

New Member

• Sep 29, 2011

• #10

PIC DEV programator

 

magnatro

New Member

• Sep 29, 2011

• #11

OSCILLATOR
CONFIGURATIONS
2.1 Oscillator Types
The PIC18FXX2 can be operated in eight different
Oscillator modes. The user can program three configuration
bits (FOSC2, FOSC1, and FOSC0) to select one
of these eight modes:
1. LP Low Power Crystal
2. XT Crystal/Resonator
3. HS High Speed Crystal/Resonator
4. HS + PLL High Speed Crystal/Resonator
with PLL enabled
5. RC External Resistor/Capacitor
6. RCIO External Resistor/Capacitor with
I/O pin enabled
7. EC External Clock
8. ECIO External Clock with I/O pin
enabled
refer datasheet..

 

P

peterzatko

New Member

• Sep 29, 2011

• #12

no, here is https://www.elnec.com/products/device-programmers/preprom-02alv/?newlang=en and adaptor MCU1 LV

MCU1-LV

former name "PIC-LV module"
accessories for PREPROM-02aLV
programming all MICROCHIP's PICs, from 8 to 40 pins, family 12Cxxx, 14Cxxx and 16Cxxx
accepts recommendations of manufactures for professional programmers
Order no.: 70-0056

 

P

peterzatko

New Member

• Sep 29, 2011

• #13

its old programmer

 

P

peterzatko

New Member

• Sep 29, 2011

• #14

I tried burn older program with the same PIC and ALL is OK.But this do not start

 

P

peterzatko

New Member

• Sep 29, 2011

• #15

witch type of eight is internal osc

 

magnatro

New Member

• Sep 29, 2011

• #16

111 = RC oscillator w/ OSC2 configured as RA6
110 = HS oscillator with PLL enabled/Clock frequency = (4 x FOSC)
101 = EC oscillator w/ OSC2 configured as RA6
100 = EC oscillator w/ OSC2 configured as divide-by-4 clock output
011 = RC oscillator
010 = HS oscillator
001 = XT oscillator
000 = LP oscillator

 

P

peterzatko

New Member

• Sep 29, 2011

• #17

I tried all options and nothing

 

P

peterzatko

New Member

• Sep 29, 2011

• #18

something is bad and i dont know what

 

P

peterzatko

New Member

• Sep 29, 2011

• #19

why hex work in proteus?

 

magnatro

New Member

• Sep 29, 2011

• #20

proteus and real world simulation are entirely different.there is no need to use the resistor network in case of proteus, the data is already therein the properties window. so in real worldapplication,,, if you use the rc oscillator for clock please refer page # page 18 of https://www.electro-tech-online.com/custompdfs/2011/09/39564c.pdf. the oscillator frequency must be supplied to the MCU for its normal functioning. generally we use HS and LP modes. in your application RC is enough, so refer page 18 of the above said pdf. read from page # 197 for further congig bits types and how to enable that. generally we disable all of the bits and enable only the code protect bit happy burning!!