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stm32: Fix prescaler overflow check in hard_pwm.c

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Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor 2025-04-07 11:55:50 -04:00
parent acd96047de
commit 7a9b06ad86
1 changed files with 3 additions and 3 deletions
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6
src/stm32/hard_pwm.c
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@ -291,10 +291,10 @@ gpio_pwm_setup(uint8_t pin, uint32_t cycle_time, uint8_t val){
if (pclock_div > 1)
pclock_div /= 2; // Timers run at twice the normal pclock frequency
uint32_t prescaler = cycle_time / (pclock_div * (MAX_PWM - 1));
if (prescaler > 0) {
prescaler -= 1;
} else if (prescaler > UINT16_MAX) {
if (prescaler > UINT16_MAX) {
prescaler = UINT16_MAX;
} else if (prescaler > 0) {
prescaler -= 1;
}
gpio_peripheral(p->pin, p->function, 0);