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Merge branch 'feature/modify_mcpwm_clock_pre_scale_v5.1' into 'release/v5.1'

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feat(mcpwm): Make the MCPWM capture timer's resolution configurable (v5.1)

See merge request espressif/esp-idf!25904
This commit is contained in:
morris
2023-09-12 11:30:39 +08:00
parent 40c6f1390d d8e5b2ac41
commit 5baf0197f0
14 changed files with 181 additions and 29 deletions
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11
components/hal/esp32c6/include/hal/mcpwm_ll.h
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@@ -45,10 +45,12 @@ extern "C" {
#define MCPWM_LL_EVENT_CAPTURE(cap) (1 << ((cap) + 27))
// Maximum values due to limited register bit width
#define MCPWM_LL_MAX_GROUP_PRESCALE 256
#define MCPWM_LL_MAX_TIMER_PRESCALE 256
#define MCPWM_LL_MAX_CARRIER_PRESCALE 16
#define MCPWM_LL_MAX_CARRIER_ONESHOT 16
#define MCPWM_LL_MAX_CAPTURE_PRESCALE 256
#define MCPWM_LL_MAX_CAPTURE_TIMER_PRESCALE 1
#define MCPWM_LL_MAX_DEAD_DELAY 65536
#define MCPWM_LL_MAX_COUNT_VALUE 65536
@@ -105,13 +107,14 @@ static inline void mcpwm_ll_group_enable_clock(mcpwm_dev_t *mcpwm, bool en)
* @brief Set the MCPWM group clock prescale
*
* @param mcpwm Peripheral instance address
* @param pre_scale Prescale value
* @param prescale Prescale value
*/
static inline void mcpwm_ll_group_set_clock_prescale(mcpwm_dev_t *mcpwm, int pre_scale)
static inline void mcpwm_ll_group_set_clock_prescale(mcpwm_dev_t *mcpwm, int prescale)
{
(void)mcpwm; // only one MCPWM instance
// group clock: PWM_clk = source_clock / (prescale + 1)
HAL_FORCE_MODIFY_U32_REG_FIELD(PCR.pwm_clk_conf, pwm_div_num, pre_scale - 1);
// group clock: PWM_clk = source_clock / (prescale)
HAL_ASSERT(prescale <= 256 && prescale > 0);
HAL_FORCE_MODIFY_U32_REG_FIELD(PCR.pwm_clk_conf, pwm_div_num, prescale - 1);
}
/**