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Flash red when ending in unknown stat

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Signed-off-by: Daniel Lublin <daniel@lublin.se>
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Daniel Lublin 2022-11-25 09:32:28 +01:00 committed by Michael Cardell Widerkrantz
parent 687ee4f8b1
commit a2bc95f49a
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GPG Key ID: D3DB3DDF57E704E5
1 changed files with 12 additions and 4 deletions
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16
hw/application_fpga/fw/tk1/main.c
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@ -91,6 +91,17 @@ static void compute_cdi(uint8_t digest[32], uint8_t use_uss, uint8_t uss[32])
wordcpy((void *)cdi, (void *)local_cdi, 8);
}
void forever_redflash()
{
int led_on = 0;
for (;;) {
*led = led_on ? LED_RED : 0;
for (volatile int i = 0; i < 800000; i++) {
}
led_on = !led_on;
}
}
enum state {
FW_STATE_INITIAL,
FW_STATE_INIT_LOADING,
@ -163,13 +174,10 @@ int main()
break; // This is never reached!
default:
// Unknown state!?
puts("Unknown firmware state 0x");
puthex(state);
lf();
asm volatile("forever:;"
"j forever;");
forever_redflash();
break; // Not reached
}