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| author | Joel Challis <git@zvecr.com> | 2022-04-29 01:23:50 +0100 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2022-04-29 01:23:50 +0100 |
| commit | d458d4a596cd1fe8f0a21b9b70ab2e5cd190e7c7 (patch) | |
| tree | 06a546f47caf244f3226ba9088044df45f484d78 /platforms/avr | |
| parent | 0de08b09e7f756270374ae222561e9880918a71f (diff) | |
Move disable_jtag to platforms (#16960)
Diffstat (limited to 'platforms/avr')
| -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(); } |