Torello
Joined: 29 Sep 2006
Posts: 117
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| Force int8 Rom x{} just after program code |
 Posted: Thu Oct 15, 2009 8:54 am |
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Hi,
In the functions below, Bootmark is read and written once if the Mcu reset was caused by a firmware flash.
In my app it works OK. My question is the following:
The compiler puts BootMark totally at the end of the program memory. I don't want this because the application will be expanded with a bootloader. Is there an easy way to let the compiler put Bootmark just after the end of my program code?
| Code: |
int8 ROM BootMark[2]= {0x00,0x00};
//==============================================================================
void bos_McuRstGetSource() {
//-- Check Mcu source of (re)boot
bos.McuRstMode=0; // load "undefined"
if (RI&POR) bos.McuRstMode|= MclrRst; // Mclr reset caused Mcu reboot
else
if (!RI) bos.McuRstMode|= SoftRst; // Reset intstruction cause Mcu reboot
else
if (!POR) bos.McuRstMode |= PwrRst; // PowerOn -OR- Flash reprogram caused Mcu reboot
//-- Check if firmware has been reprogrammed
if (read_program_eeprom(&BootMark)!=0xEBEB) { // T:Firmware is flashed! (firmware Reprograms 0 in rom int16 'bootmark')
bos.McuRstMode |= FwRst; // flag firmware (re)program reboot
}
}
//==============================================================================
void bos_McuRstAckSource() {
RI=1; POR=1; // need to set flag for next detection
if (read_program_eeprom(&BootMark)!=0xEBEB) // Only write if needed! ( as precausion on endurance)
write_program_eeprom(&Bootmark, 0xEBEB); // Set the bootflag<>0
} |
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