diff options
| author | tmk <nobody@nowhere> | 2012-06-30 14:44:14 +0900 |
|---|---|---|
| committer | tmk <nobody@nowhere> | 2012-06-30 14:44:14 +0900 |
| commit | 6d79e6579f1b769f3547856b8af56bd357580adf (patch) | |
| tree | 68e235f3802d21ac40541446c2c23fdbbeb5c18f /common | |
| parent | 2c5d3ac76f0ef3c72aa0416aef8b775864b50eb1 (diff) | |
Add support of USBasp bootloader.
Diffstat (limited to 'common')
| -rw-r--r-- | common/bootloader.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/common/bootloader.c b/common/bootloader.c index e45295cd5f..612b949648 100644 --- a/common/bootloader.c +++ b/common/bootloader.c @@ -24,12 +24,22 @@ void bootloader_jump(void) { cli(); + + // + //Teensy + // +#if defined(__AVR_AT90USB162__) || defined(__AVR_ATmega32U4__) || defined(__AVR_AT90USB646__) || defined(__AVR_AT90USB1286__) // disable watchdog, if enabled // disable all peripherals UDCON = 1; USBCON = (1<<FRZCLK); // disable USB UCSR1B = 0; _delay_ms(5); +#else + // This makes custom USBasploader come up. + MCUSR = 0; +#endif + #if defined(__AVR_AT90USB162__) EIMSK = 0; PCICR = 0; SPCR = 0; ACSR = 0; EECR = 0; TIMSK0 = 0; TIMSK1 = 0; UCSR1B = 0; @@ -52,6 +62,26 @@ void bootloader_jump(void) { PORTA = 0; PORTB = 0; PORTC = 0; PORTD = 0; PORTE = 0; PORTF = 0; #endif + + // + //USBasp + // +#if defined(__AVR_ATmega168__) || defined(__AVR_ATmega168P__) || defined(__AVR_ATmega328P) + // This makes custom USBasploader come up. + MCUSR = 0; + + // initialize ports + PORTB = 0; PORTC= 0; PORTD = 0; + DDRB = 0; DDRC= 0; DDRD = 0; + + // disable interrupts + EIMSK = 0; EECR = 0; SPCR = 0; + ACSR = 0; SPMCSR = 0; WDTCSR = 0; PCICR = 0; + TIMSK0 = 0; TIMSK1 = 0; TIMSK2 = 0; + ADCSRA = 0; TWCR = 0; UCSR0B = 0; +#endif + + // start Bootloader ((void (*)(void))BOOTLOADER_START)(); } |