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cpu/stm32/periph/pwm: useless static var and a semicolon removed

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This commit is contained in:
hugues 2020-07-14 01:41:16 +02:00
parent 304d3f9e8d
commit 0926a04b08
1 changed files with 2 additions and 7 deletions
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9
cpu/stm32/periph/pwm.c
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@ -33,9 +33,7 @@
TIM_CCMR1_OC2M_1 | TIM_CCMR1_OC2M_2)
#define CCMR_MODE2 (TIM_CCMR1_OC1M_0 | TIM_CCMR1_OC1M_1 | \
TIM_CCMR1_OC1M_2 | TIM_CCMR1_OC2M_0 | \
TIM_CCMR1_OC2M_1 | TIM_CCMR1_OC2M_2);
static uint32_t dc_reverse = 0;
TIM_CCMR1_OC2M_1 | TIM_CCMR1_OC2M_2)
static inline TIM_TypeDef *dev(pwm_t pwm)
{
@ -75,8 +73,6 @@ uint32_t pwm_init(pwm_t pwm, pwm_mode_t mode, uint32_t freq, uint16_t res)
dev(pwm)->PSC = (timer_clk / (res * freq)) - 1;
dev(pwm)->ARR = (mode == PWM_CENTER) ? (res / 2) : res - 1;
dc_reverse &= ~(1 << pwm);
/* set PWM mode */
switch (mode) {
case PWM_LEFT:
@ -87,7 +83,6 @@ uint32_t pwm_init(pwm_t pwm, pwm_mode_t mode, uint32_t freq, uint16_t res)
dev(pwm)->CCMR1 = CCMR_MODE2;
dev(pwm)->CCMR2 = CCMR_MODE2;
/* duty cycle should be reversed */
dc_reverse |= (1 << pwm);
break;
case PWM_CENTER:
dev(pwm)->CCMR1 = CCMR_MODE1;
@ -131,7 +126,7 @@ void pwm_set(pwm_t pwm, uint8_t channel, uint16_t value)
value = (uint16_t)dev(pwm)->ARR + 1;
}
if ((dc_reverse & (1 << pwm)) != 0) {
if (dev(pwm)->CCMR1 == CCMR_MODE2) {
/* reverse the value */
value = (uint16_t)dev(pwm)->ARR + 1 - value;
}