int __attribute__((noreturn)) main(void)
{
uint16_t idlePolls = 0;
#ifdef APPCHECKSUM
int validApp = 0;
#endif
/* initialize */
wdt_disable(); /* main app may have enabled watchdog */
#ifdef TINY85MODE
tiny85FlashInit();
#endif
bootLoaderInit();
odDebugInit();
DBG1(0x00, 0, 0);
#ifdef APPCHECKSUM
validApp = testForValidApplication();
#endif
#ifndef TINY85MODE
# ifndef NO_FLASH_WRITE
GICR = (1 << IVCE); /* enable change of interrupt vectors */
GICR = (1 << IVSEL); /* move interrupts to boot flash section */
# endif
#endif
if(bootLoaderCondition()){
initForUsbConnectivity();
do{
usbPoll();
_delay_us(100);
idlePolls++;
#ifdef TINY85MODE
tiny85FlashWrites();
#endif
#if BOOTLOADER_CAN_EXIT
// exit if requested by the programming app, or if we timeout waiting for the pc with a valid app
if(requestBootLoaderExit || AUTO_EXIT_CONDITION()){
_delay_ms(10);
break;
}
#endif
}while(bootLoaderCondition()); /* main event loop */
}
leaveBootloader();
}
int __attribute__((noreturn)) main(void) {
uint16_t idlePolls = 0;
/* initialize */
wdt_disable(); /* main app may have enabled watchdog */
tiny85FlashInit();
bootLoaderInit();
if (bootLoaderCondition()) {
initForUsbConnectivity();
do {
usbPoll();
_delay_us(100);
idlePolls++;
if (events) idlePolls = 0;
// these next two freeze the chip for ~ 4.5ms, breaking usb protocol
// and usually both of these will activate in the same loop, so host
// needs to wait > 9ms before next usb request
if (isEvent(EVENT_ERASE_APPLICATION)) eraseApplication();
if (isEvent(EVENT_WRITE_PAGE)) tiny85FlashWrites();
if (isEvent(EVENT_FINISH)) { // || AUTO_EXIT_CONDITION()) {
tiny85FinishWriting();
# if BOOTLOADER_CAN_EXIT
_delay_ms(10); // removing delay causes USB errors
break;
# endif
}
// # if BOOTLOADER_CAN_EXIT
// // exit if requested by the programming app, or if we timeout waiting for the pc with a valid app
// if (isEvent(EVENT_EXIT_BOOTLOADER) || AUTO_EXIT_CONDITION()) {
// //_delay_ms(10);
// break;
// }
// # endif
clearEvents();
} while(bootLoaderCondition()); /* main event loop */
}
leaveBootloader();
}
int main(void) {
/* initialize */
#ifdef RESTORE_OSCCAL
uint8_t osccal_default = OSCCAL;
#endif
#if (!SET_CLOCK_PRESCALER) && LOW_POWER_MODE
uint8_t prescaler_default = CLKPR;
#endif
wdt_disable(); /* main app may have enabled watchdog */
tiny85FlashInit();
bootLoaderInit();
if (bootLoaderStartCondition()) {
#if LOW_POWER_MODE
// turn off clock prescalling - chip must run at full speed for usb
// if you might run chip at lower voltages, detect that in bootLoaderStartCondition
CLKPR = 1 << CLKPCE;
CLKPR = 0;
#endif
initForUsbConnectivity();
do {
usbPoll();
_delay_us(100);
idlePolls++;
// these next two freeze the chip for ~ 4.5ms, breaking usb protocol
// and usually both of these will activate in the same loop, so host
// needs to wait > 9ms before next usb request
if (isEvent(EVENT_ERASE_APPLICATION)) eraseApplication();
if (isEvent(EVENT_WRITE_PAGE)) tiny85FlashWrites();
# if BOOTLOADER_CAN_EXIT
if (isEvent(EVENT_EXECUTE)) { // when host requests device run uploaded program
break;
}
# endif
clearEvents();
} while(bootLoaderCondition()); /* main event loop runs so long as bootLoaderCondition remains truthy */
}
// set clock prescaler to desired clock speed (changing from clkdiv8, or no division, depending on fuses)
#if LOW_POWER_MODE
#ifdef SET_CLOCK_PRESCALER
CLKPR = 1 << CLKPCE;
CLKPR = SET_CLOCK_PRESCALER;
#else
CLKPR = 1 << CLKPCE;
CLKPR = prescaler_default;
#endif
#endif
// slowly bring down OSCCAL to it's original value before launching in to user program
#ifdef RESTORE_OSCCAL
while (OSCCAL > osccal_default) { OSCCAL -= 1; }
#endif
leaveBootloader();
}