diff options
| author | Nick Brassel <nick@tzarc.org> | 2022-05-29 07:57:11 +1000 |
|---|---|---|
| committer | Nick Brassel <nick@tzarc.org> | 2022-05-29 07:57:11 +1000 |
| commit | b835171008eaeaa992a1b8e390af8bce6f5f0b8f (patch) | |
| tree | de22c239cc47556f8be7538f95f48ad75b86d110 /platforms/avr/platform.c | |
| parent | f5d091a9d58c8349437e9d52de87294258cbd256 (diff) | |
| parent | 0c8f78020d01ee5c45481d7d93b9b0d9f7b95103 (diff) | |
Merge branch 'develop' -- breaking changes 2022-05-28.
Diffstat (limited to 'platforms/avr/platform.c')
| -rw-r--r-- | platforms/avr/platform.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/platforms/avr/platform.c b/platforms/avr/platform.c index 3e35b4fe4c..37decb6ec8 100644 --- a/platforms/avr/platform.c +++ b/platforms/avr/platform.c @@ -16,6 +16,17 @@ #include "platform_deps.h" +static void disable_jtag(void) { +// To use PF4-7 (PC2-5 on ATmega32A), disable JTAG by writing JTD bit twice within four cycles. +#if (defined(__AVR_AT90USB646__) || defined(__AVR_AT90USB647__) || defined(__AVR_AT90USB1286__) || defined(__AVR_AT90USB1287__) || defined(__AVR_ATmega16U4__) || defined(__AVR_ATmega32U4__)) + MCUCR |= _BV(JTD); + MCUCR |= _BV(JTD); +#elif defined(__AVR_ATmega32A__) + MCUCSR |= _BV(JTD); + MCUCSR |= _BV(JTD); +#endif +} + void platform_setup(void) { - // do nothing + disable_jtag(); } |