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| author | Keith Packard <keithp@keithp.com> | 2011-05-18 00:17:04 -0700 |
|---|---|---|
| committer | Keith Packard <keithp@keithp.com> | 2011-05-18 00:17:04 -0700 |
| commit | f2c9234341b18d94c6056d72a496753c64619f08 (patch) | |
| tree | ebe604a5bc1b15034634735e63ff02e4a3a200a7 /src-avr/ao_led.c | |
| parent | e7e2fdf45dfbf6393ee0a0ec22e1e5ea49d6cfd5 (diff) | |
src-avr: Trap accidental restart
Use the LED output pin to notice when avr-demo accidentally restarts
and print out an error message in that case.
Signed-off-by: Keith Packard <keithp@keithp.com>
Diffstat (limited to 'src-avr/ao_led.c')
| -rw-r--r-- | src-avr/ao_led.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src-avr/ao_led.c b/src-avr/ao_led.c index 0e69ee3a..5183140b 100644 --- a/src-avr/ao_led.c +++ b/src-avr/ao_led.c @@ -63,6 +63,10 @@ ao_led_init(uint8_t enable) { ao_led_enable = enable; #ifdef AVR + if ((LED_DDR & enable)) { + printf ("oops! restarted\n"); + ao_panic(AO_PANIC_REBOOT); + } LED_PORT &= ~enable; LED_DDR |= enable; #else |