diff options
Diffstat (limited to 'firmware/main.c')
| -rw-r--r-- | firmware/main.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/firmware/main.c b/firmware/main.c index 486a26b..13484d3 100644 --- a/firmware/main.c +++ b/firmware/main.c @@ -169,9 +169,16 @@ static uint8_t usbFunctionSetup(uint8_t data[8]) { static void initHardware (void) { // Disable watchdog and set timeout to maximum in case the WDT is fused on +#ifdef WDTCSR + // New ATtinies841/441 use a different unlock sequence and renamed registers + MCUSR=0; + CCP = 0xD8; + WDTCSR = 1<<WDP2 | 1<<WDP1 | 1<<WDP0; +#else MCUSR=0; WDTCR = 1<<WDCE | 1<<WDE; WDTCR = 1<<WDP2 | 1<<WDP1 | 1<<WDP0; +#endif /* initialize */ #if OSCCAL_RESTORE |