diff options
| author | Joel Challis <git@zvecr.com> | 2020-04-02 22:23:57 +0100 |
|---|---|---|
| committer | Florian Didron <fdidron@users.noreply.github.com> | 2020-06-12 17:00:27 +0900 |
| commit | fec6ee365cac76f3dbb9e81bd544eefe8f6dbc76 (patch) | |
| tree | d4da10608dce4b2b312b92e5c774c8cab6fb8eae /tmk_core | |
| parent | 65de39bb6d234a5527a3491f281b4a715de3e52b (diff) | |
Initial support for ATtiny85 (#8632)
* Initial support for ATtiny85
* Update mcu selection
Diffstat (limited to 'tmk_core')
| -rw-r--r-- | tmk_core/common/avr/bootloader.c | 10 | ||||
| -rw-r--r-- | tmk_core/common/avr/timer.c | 19 |
2 files changed, 18 insertions, 11 deletions
diff --git a/tmk_core/common/avr/bootloader.c b/tmk_core/common/avr/bootloader.c index ca9746f327..7e5d2b0579 100644 --- a/tmk_core/common/avr/bootloader.c +++ b/tmk_core/common/avr/bootloader.c @@ -237,17 +237,17 @@ void bootloader_jump(void) { "bootloader_startup_loop%=: \n\t" "rjmp bootloader_startup_loop%= \n\t" : - : [ mcucsrio ] "I"(_SFR_IO_ADDR(MCUCSR)), + : [mcucsrio] "I"(_SFR_IO_ADDR(MCUCSR)), # if (FLASHEND > 131071) - [ ramendhi ] "M"(((RAMEND - 2) >> 8) & 0xff), [ ramendlo ] "M"(((RAMEND - 2) >> 0) & 0xff), [ bootaddrhi ] "M"((((FLASH_SIZE - BOOTLOADER_SIZE) >> 1) >> 16) & 0xff), + [ramendhi] "M"(((RAMEND - 2) >> 8) & 0xff), [ramendlo] "M"(((RAMEND - 2) >> 0) & 0xff), [bootaddrhi] "M"((((FLASH_SIZE - BOOTLOADER_SIZE) >> 1) >> 16) & 0xff), # else - [ ramendhi ] "M"(((RAMEND - 1) >> 8) & 0xff), [ ramendlo ] "M"(((RAMEND - 1) >> 0) & 0xff), + [ramendhi] "M"(((RAMEND - 1) >> 8) & 0xff), [ramendlo] "M"(((RAMEND - 1) >> 0) & 0xff), # endif - [ bootaddrme ] "M"((((FLASH_SIZE - BOOTLOADER_SIZE) >> 1) >> 8) & 0xff), [ bootaddrlo ] "M"((((FLASH_SIZE - BOOTLOADER_SIZE) >> 1) >> 0) & 0xff)); + [bootaddrme] "M"((((FLASH_SIZE - BOOTLOADER_SIZE) >> 1) >> 8) & 0xff), [bootaddrlo] "M"((((FLASH_SIZE - BOOTLOADER_SIZE) >> 1) >> 0) & 0xff)); #else // Assume remaining boards are DFU, even if the flag isn't set -# if !(defined(__AVR_ATmega32A__) || defined(__AVR_ATmega328P__)) // no USB - maybe BOOTLOADER_BOOTLOADHID instead though? +# if !(defined(__AVR_ATmega32A__) || defined(__AVR_ATmega328P__) || defined(__AVR_ATtiny85__)) // no USB - maybe BOOTLOADER_BOOTLOADHID instead though? UDCON = 1; USBCON = (1 << FRZCLK); // disable USB UCSR1B = 0; diff --git a/tmk_core/common/avr/timer.c b/tmk_core/common/avr/timer.c index 88fa1dfa65..c2e6c6e081 100644 --- a/tmk_core/common/avr/timer.c +++ b/tmk_core/common/avr/timer.c @@ -45,19 +45,26 @@ void timer_init(void) { # error "Timer prescaler value is not valid" #endif -#ifndef __AVR_ATmega32A__ +#if defined(__AVR_ATmega32A__) + // Timer0 CTC mode + TCCR0 = _BV(WGM01) | prescaler; + + OCR0 = TIMER_RAW_TOP; + TIMSK = _BV(OCIE0); +#elif defined(__AVR_ATtiny85__) // Timer0 CTC mode TCCR0A = _BV(WGM01); TCCR0B = prescaler; - OCR0A = TIMER_RAW_TOP; - TIMSK0 = _BV(OCIE0A); + OCR0A = TIMER_RAW_TOP; + TIMSK = _BV(OCIE0A); #else // Timer0 CTC mode - TCCR0 = _BV(WGM01) | prescaler; + TCCR0A = _BV(WGM01); + TCCR0B = prescaler; - OCR0 = TIMER_RAW_TOP; - TIMSK = _BV(OCIE0); + OCR0A = TIMER_RAW_TOP; + TIMSK0 = _BV(OCIE0A); #endif } |