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firmware: Guard the timer manipulation macro argument

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This commit is contained in:
Ondrej Jirman 2021-08-02 11:53:31 +02:00
parent 394af632aa
commit 5fd891ecc0
1 changed files with 6 additions and 6 deletions
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12
firmware/main.c
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@ -212,21 +212,21 @@ static void jmp_to_user_fw(void) __naked
// timers clock is 2 MHz so we need to wait for 2000 ticks to get delay of 1ms
#define T0_SET_TIMEOUT(n) { \
TL0 = 0x00; \
TH0 = (0x10000u - n) >> 8; \
TL0 = (0x10000u - n) & 0xff; \
TH0 = (0x10000u - (n)) >> 8; \
TL0 = (0x10000u - (n)) & 0xff; \
}
#define T1_SET_TIMEOUT(n) { \
TL1 = 0x00; \
TH1 = (0x10000u - n) >> 8; \
TL1 = (0x10000u - n) & 0xff; \
TH1 = (0x10000u - (n)) >> 8; \
TL1 = (0x10000u - (n)) & 0xff; \
}
#define delay_us(n) { \
TL0 = 0x00; \
TF0 = 0; \
TH0 = (0x10000u - 2 * n) >> 8; \
TL0 = (0x10000u - 2 * n) & 0xff; \
TH0 = (0x10000u - 2 * (n)) >> 8; \
TL0 = (0x10000u - 2 * (n)) & 0xff; \
while (!TF0); \
}