diff options
| author | gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4> | 2009-12-18 11:42:05 +0000 |
|---|---|---|
| committer | gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4> | 2009-12-18 11:42:05 +0000 |
| commit | f27c5d296844f858b3026ee6f1a63641c0d98fb1 (patch) | |
| tree | 4d87c3d7d4f07d20902d80fe31d34296aeb5dc21 /os/hal/platforms/STM32/pwm_lld.c | |
| parent | 65f23fc65ff4b60d88281184d9a634375f02e3a1 (diff) | |
| download | ChibiOS-f27c5d296844f858b3026ee6f1a63641c0d98fb1.tar.gz ChibiOS-f27c5d296844f858b3026ee6f1a63641c0d98fb1.tar.bz2 ChibiOS-f27c5d296844f858b3026ee6f1a63641c0d98fb1.zip | |
git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@1429 35acf78f-673a-0410-8e92-d51de3d6d3f4
Diffstat (limited to 'os/hal/platforms/STM32/pwm_lld.c')
| -rw-r--r-- | os/hal/platforms/STM32/pwm_lld.c | 39 |
1 files changed, 33 insertions, 6 deletions
diff --git a/os/hal/platforms/STM32/pwm_lld.c b/os/hal/platforms/STM32/pwm_lld.c index 7fbaf5eae..6b5d7d71c 100644 --- a/os/hal/platforms/STM32/pwm_lld.c +++ b/os/hal/platforms/STM32/pwm_lld.c @@ -95,7 +95,7 @@ CH_IRQ_HANDLER(VectorAC) { CH_IRQ_PROLOGUE();
- sr = TIM1->SR;
+ sr = TIM1->SR & TIM1->DIER;
TIM1->SR = ~(TIM_SR_CC1IF | TIM_SR_CC2IF | TIM_SR_CC3IF | TIM_SR_CC4IF);
if ((sr & TIM_SR_CC1IF) != 0)
PWMD1.pd_config->pc_channels[0].pcc_callback();
@@ -160,19 +160,45 @@ void pwm_lld_start(PWMDriver *pwmp) { pwmp->pd_tim->PSC = pwmp->pd_config->pc_psc;
pwmp->pd_tim->CNT = 0;
pwmp->pd_tim->ARR = pwmp->pd_config->pc_arr;
- ccer = TIM_CCER_CC1E | TIM_CCER_CC2E | TIM_CCER_CC3E | TIM_CCER_CC4E;
- if (pwmp->pd_config->pc_channels[0].pcc_mode == PWM_ACTIVE_LOW)
+ /* Output enables and polarities setup.*/
+ ccer = 0;
+ switch (pwmp->pd_config->pc_channels[0].pcc_mode) {
+ case PWM_OUTPUT_ACTIVE_LOW:
ccer |= TIM_CCER_CC1P;
- if (pwmp->pd_config->pc_channels[1].pcc_mode == PWM_ACTIVE_LOW)
+ case PWM_OUTPUT_ACTIVE_HIGH:
+ ccer |= TIM_CCER_CC1E;
+ default:
+ ;
+ }
+ switch (pwmp->pd_config->pc_channels[1].pcc_mode) {
+ case PWM_OUTPUT_ACTIVE_LOW:
ccer |= TIM_CCER_CC2P;
- if (pwmp->pd_config->pc_channels[2].pcc_mode == PWM_ACTIVE_LOW)
+ case PWM_OUTPUT_ACTIVE_HIGH:
+ ccer |= TIM_CCER_CC2E;
+ default:
+ ;
+ }
+ switch (pwmp->pd_config->pc_channels[2].pcc_mode) {
+ case PWM_OUTPUT_ACTIVE_LOW:
ccer |= TIM_CCER_CC3P;
- if (pwmp->pd_config->pc_channels[3].pcc_mode == PWM_ACTIVE_LOW)
+ case PWM_OUTPUT_ACTIVE_HIGH:
+ ccer |= TIM_CCER_CC3E;
+ default:
+ ;
+ }
+ switch (pwmp->pd_config->pc_channels[3].pcc_mode) {
+ case PWM_OUTPUT_ACTIVE_LOW:
ccer |= TIM_CCER_CC4P;
+ case PWM_OUTPUT_ACTIVE_HIGH:
+ ccer |= TIM_CCER_CC4E;
+ default:
+ ;
+ }
pwmp->pd_tim->CCER = ccer;
pwmp->pd_tim->EGR = TIM_EGR_UG; /* Update event. */
pwmp->pd_tim->SR = 0; /* Clear pending IRQs. */
pwmp->pd_tim->DIER = pwmp->pd_config->pc_callback == NULL ? 0 : TIM_DIER_UIE;
+ pwmp->pd_tim->BDTR = TIM_BDTR_MOE;
pwmp->pd_tim->CR1 = TIM_CR1_ARPE | TIM_CR1_URS |
TIM_CR1_CEN; /* Timer configured and started.*/
}
@@ -187,6 +213,7 @@ void pwm_lld_stop(PWMDriver *pwmp) { if (pwmp->pd_state == PWM_READY) {
stop_channels(pwmp);
pwmp->pd_tim->CR1 = 0;
+ pwmp->pd_tim->BDTR = 0;
pwmp->pd_tim->DIER = 0;
#if USE_STM32_PWM1
|