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mcpwm: fix the issue of wrong period (backport v3.2)

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Chen Zheng Wei 2019-12-31 16:40:33 +08:00 committed by espressif
parent 19f43f92fa
commit 65f012d612
1 changed files with 6 additions and 6 deletions
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12
components/driver/mcpwm.c
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@ -141,9 +141,9 @@ esp_err_t mcpwm_set_frequency(mcpwm_unit_t mcpwm_num, mcpwm_timer_t timer_num, u
MCPWM_CHECK(timer_num < MCPWM_TIMER_MAX, MCPWM_TIMER_ERROR, ESP_ERR_INVALID_ARG);
portENTER_CRITICAL(&mcpwm_spinlock);
mcpwm_num_of_pulse = MCPWM_CLK / (frequency * (TIMER_CLK_PRESCALE + 1));
previous_period = MCPWM[mcpwm_num]->timer[timer_num].period.period;
previous_period = MCPWM[mcpwm_num]->timer[timer_num].period.period + 1;
MCPWM[mcpwm_num]->timer[timer_num].period.prescale = TIMER_CLK_PRESCALE;
MCPWM[mcpwm_num]->timer[timer_num].period.period = mcpwm_num_of_pulse;
MCPWM[mcpwm_num]->timer[timer_num].period.period = mcpwm_num_of_pulse - 1;
MCPWM[mcpwm_num]->timer[timer_num].period.upmethod = 0;
set_duty_a = (((MCPWM[mcpwm_num]->channel[timer_num].cmpr_value[0].cmpr_val) * mcpwm_num_of_pulse) / previous_period);
set_duty_b = (((MCPWM[mcpwm_num]->channel[timer_num].cmpr_value[1].cmpr_val) * mcpwm_num_of_pulse) / previous_period);
@ -162,7 +162,7 @@ esp_err_t mcpwm_set_duty(mcpwm_unit_t mcpwm_num, mcpwm_timer_t timer_num, mcpwm_
MCPWM_CHECK(timer_num < MCPWM_TIMER_MAX, MCPWM_TIMER_ERROR, ESP_ERR_INVALID_ARG);
MCPWM_CHECK(op_num < MCPWM_OPR_MAX, MCPWM_OP_ERROR, ESP_ERR_INVALID_ARG);
portENTER_CRITICAL(&mcpwm_spinlock);
set_duty = (MCPWM[mcpwm_num]->timer[timer_num].period.period) * (duty) / 100;
set_duty = (MCPWM[mcpwm_num]->timer[timer_num].period.period + 1) * (duty) / 100;
MCPWM[mcpwm_num]->channel[timer_num].cmpr_value[op_num].cmpr_val = set_duty;
MCPWM[mcpwm_num]->channel[timer_num].cmpr_cfg.a_upmethod = BIT(0);
MCPWM[mcpwm_num]->channel[timer_num].cmpr_cfg.b_upmethod = BIT(0);
@ -288,7 +288,7 @@ uint32_t mcpwm_get_frequency(mcpwm_unit_t mcpwm_num, mcpwm_timer_t timer_num)
uint32_t frequency;
MCPWM_CHECK(mcpwm_num < MCPWM_UNIT_MAX, MCPWM_UNIT_NUM_ERROR, ESP_ERR_INVALID_ARG);
MCPWM_CHECK(timer_num < MCPWM_TIMER_MAX, MCPWM_TIMER_ERROR, ESP_ERR_INVALID_ARG);
frequency = MCPWM_CLK / ((MCPWM[mcpwm_num]->timer[timer_num].period.period) * (TIMER_CLK_PRESCALE + 1));
frequency = MCPWM_CLK / ((MCPWM[mcpwm_num]->timer[timer_num].period.period + 1) * (TIMER_CLK_PRESCALE + 1));
return frequency;
}
@ -299,7 +299,7 @@ float mcpwm_get_duty(mcpwm_unit_t mcpwm_num, mcpwm_timer_t timer_num, mcpwm_oper
MCPWM_CHECK(timer_num < MCPWM_TIMER_MAX, MCPWM_TIMER_ERROR, ESP_ERR_INVALID_ARG);
MCPWM_CHECK(op_num < MCPWM_OPR_MAX, MCPWM_OP_ERROR, ESP_ERR_INVALID_ARG);
portENTER_CRITICAL(&mcpwm_spinlock);
duty = 100.0 * (MCPWM[mcpwm_num]->channel[timer_num].cmpr_value[op_num].cmpr_val) / (MCPWM[mcpwm_num]->timer[timer_num].period.period);
duty = 100.0 * (MCPWM[mcpwm_num]->channel[timer_num].cmpr_value[op_num].cmpr_val) / (MCPWM[mcpwm_num]->timer[timer_num].period.period + 1);
portEXIT_CRITICAL(&mcpwm_spinlock);
return duty;
}
@ -699,7 +699,7 @@ esp_err_t mcpwm_sync_enable(mcpwm_unit_t mcpwm_num, mcpwm_timer_t timer_num, mcp
MCPWM_CHECK(mcpwm_num < MCPWM_UNIT_MAX, MCPWM_UNIT_NUM_ERROR, ESP_ERR_INVALID_ARG);
MCPWM_CHECK(timer_num < MCPWM_TIMER_MAX, MCPWM_TIMER_ERROR, ESP_ERR_INVALID_ARG);
portENTER_CRITICAL(&mcpwm_spinlock);
set_phase = (MCPWM[mcpwm_num]->timer[timer_num].period.period) * (phase_val) / 1000;
set_phase = (MCPWM[mcpwm_num]->timer[timer_num].period.period + 1) * (phase_val) / 1000;
MCPWM[mcpwm_num]->timer[timer_num].sync.timer_phase = set_phase;
if (timer_num == MCPWM_TIMER_0) {
MCPWM[mcpwm_num]->timer_synci_cfg.t0_in_sel = sync_sig;