I am playing around with the cvs version of the sdcc compiler and I have put together a 'simple' piece of code to step a motor (based on the work that I have done with the Hi-Tech PICC Lite compiler). I am using gpsim (again latest cvs version) to test the code to ensure that everything is A OK.
Now, simulating a 16f84 no problems ... everything works as advertised, I am a happy bunny
Trying to simulate the resulting code in gpsim fails (for those interested I have included the error message I get from gpsim)
Any ideas as to what might be wrong? I have posted a question of the gpsim mail list about this, wondering if anyone here might have any ideas / suggestions.
(Yes Nigel, this is another reason why learning assembler is good reason ... :lol: )
Now, simulating a 16f84 no problems ... everything works as advertised, I am a happy bunny
Code:
//fuses configuration
typedef unsigned int word;
word at 0x2007 __CONFIG = _CP_OFF & \ // code protection off
_DATA_CP_OFF & \ // data protection off
_PWRTE_ON & \ // power on timer on
_WDT_OFF & \ // watchdog timer off
_INTRC_OSC_NOCLKOUT & \ // internal oscillator
_LVP_OFF & \ // low voltage programming off
_MCLRE_OFF & \ // MCLRE tied internally to VDD
_BODEN_OFF; // Brown-out reset disabledTrying to simulate the resulting code in gpsim fails (for those interested I have included the error message I get from gpsim)
Code:
gpsim - the GNUPIC simulator
version: 0.21.3
type help for help
starting server....
started server
gpsim> f628 construct
p16f628 setting config word 0xffff
porta valid_iopins ff tris valid io df
** SETTING CONFIG address = 0x2007 value = 0x3f90
p16f628 setting config word 0x3f90
porta valid_iopins 1f tris valid io df
gpsim> running...
attempt read from invalid file register
attempt write to invalid file register: address 0x0, value 0x4
0x0000000000000048 p16f628 0x0013 0x1515 bsf ccpr1l,2Any ideas as to what might be wrong? I have posted a question of the gpsim mail list about this, wondering if anyone here might have any ideas / suggestions.
(Yes Nigel, this is another reason why learning assembler is good reason ... :lol: )