Hello Gurus,
I am having problem in compiling an old simple project using picc v9.83 + mplab v8.76.
Let me start by mentioning that I am resuming my PIC activity almost after 18 months. 18 months ago my toolset was mplab v8.36 and hi-tech picc v9.65 (from bunion). I had developed some complex systems using this toolset.
Before resuming my PIC activity again, I thought of updating the toolset to latest ones. So, I installed MPLAB v8.76 and hi-tech picc v9.83 (activated by RSA keygen v2.3 above). I confirmed the activation by 'picc.exe --ver' in command terminal. I am using windows XP Professional with SP3.
After installing latest toolsuite, I tried to compile a very simple project. LED blinking. This is one of the tutorial project that used to build and run successfully with my 18 months old toolset.
Here are the simple c codes. Target device is 16F877A.
file - main.c
=====
#include <htc.h>
__CONFIG(XT & WDTDIS & PWRTDIS & BORDIS & LVPDIS & WRTEN &
DEBUGEN & DUNPROT & UNPROTECT);
void init(void)
{
PIE1 = 0b00000001;
INTCON = 0b01000000;
OPTION = 0b10000000;
// port directions: 1=input, 0=output
TRISB = 0b00000000;
T1CON = 0b00110101;
}
volatile char counter;
void main(void)
{
counter = 0;
init();
ei();
while (1){
PORTB = counter;
}
file - int.c
====
#include <htc.h>
extern volatile char counter;
void interrupt my_isr(void){
if((TMR1IE)&&(TMR1IF)){
counter++;
TMR1IF=0;
}
}
Following is the error I am getting when I press 'build' button.
=================================================================
Build H:\Technical\Electronics\microcontroller\PIC\Projects\portB_LED_blink\portB_LED_blink for device 16F877A
Using driver C:\Program Files\HI-TECH Software\PICC\9.83\bin\picc.exe
Make: The target "H:\Technical\Electronics\microcontroller\PIC\Projects\portB_LED_blink\main.p1" is out of date.
Executing: "C:\Program Files\HI-TECH Software\PICC\9.83\bin\picc.exe" --pass1 H:\Technical\Electronics\microcontroller\PIC\Projects\portB_LED_blink\main.c -q --chip=16F877A -P --runtime=default,+init,-keep,+osccal,+oscval:0,-download,-resetbits,+stackcall,+clib --opt=default,+asm,-debug,-speed,+space,9 --warn=0 -D__DEBUG=1 --double=24 --float=24 --addrqual=ignore -g --asmlist "--errformat=Error [%n] %f; %l.%c %s" "--msgformat=Advisory[%n] %s" "--warnformat=Warning [%n] %f; %l.%c %s"
Error [192] H:\Technical\Electronics\microcontroller\PIC\Projects\portB_LED_blink\main.c; 10.1 undefined identifier "OPTION"
Make: The target "H:\Technical\Electronics\microcontroller\PIC\Projects\portB_LED_blink\int.p1" is out of date.
Executing: "C:\Program Files\HI-TECH Software\PICC\9.83\bin\picc.exe" --pass1 H:\Technical\Electronics\microcontroller\PIC\Projects\portB_LED_blink\int.c -q --chip=16F877A -P --runtime=default,+init,-keep,+osccal,+oscval:0,-download,-resetbits,+stackcall,+clib --opt=default,+asm,-debug,-speed,+space,9 --warn=0 -D__DEBUG=1 --double=24 --float=24 --addrqual=ignore -g --asmlist "--errformat=Error [%n] %f; %l.%c %s" "--msgformat=Advisory[%n] %s" "--warnformat=Warning [%n] %f; %l.%c %s"
********** Build failed! **********
=============================================================
The "OPTION variable seems to be not defined in the header file. But it used to work with picc v9.65. Is there any change in SFR while I was away?
Really appreciate your help.
If you think this is not the right thread, please advice me the correct pleace to post it.
Thanks.
Posted on: October 12, 2011, 05:30:48 05:30 - Automerged
Ok, by looking at several header files, I figured that the header format has changed (for good, it seems) and the OPTION is renamed to OPTION_REG.
chip_select.h uses a flag _LEGACY_HEADERS to decide if old or new header files should be used.
#ifdef _16F877A
#ifdef _LEGACY_HEADERS
#include <legacy/pic168xa.h>
#else
#include <pic16f877a.h>
#endif
#endif
legacy/pic168xa.h has OPTION defined, but pic16f877a.h has OPTION_REG defined.
How do I set this _LEGACY_HEADERS flag? Directly in my code like this,
#define _LEGACY_HEADERS
#include <htc.h>
Or is there a way to specify it to project options? I searched in MPLAB, but in vain.
Would appreciate if anybody can guide me to the right approach.
Thanks.
