zaske/BA_DIY_Power_PCB
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added set_Frequency to mcpwm.c

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changes mcpwm to upDown Timer
This commit is contained in:
der_zaske
2025-02-02 22:30:32 +01:00
parent e098ab6c7a
commit f12f908933
5 changed files with 78 additions and 39 deletions
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85
main/mcpwm.c
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@@ -28,6 +28,7 @@ static mcpwm_gen_handle_t generator_W_LIN = NULL;
static Phase HighsidePhase;
static Phase LowsidePhase;
uint32_t periode_ticks = CONFIG_TIMER_BASE_FREQ/CONFIG_FREQ_PWM;
float duty = CONFIG_DUTY_PWM;
/*############################################*/
/*############### MCPWM-Setup ################*/
/*############################################*/
@@ -45,7 +46,7 @@ void mcpwm_init(){
.clk_src = MCPWM_TIMER_CLK_SRC_DEFAULT,
.resolution_hz = 40000000, //40MHz
.period_ticks = periode_ticks, //40MHz/2KHz = 20KHz
.count_mode = MCPWM_TIMER_COUNT_MODE_UP,
.count_mode = MCPWM_TIMER_COUNT_MODE_UP_DOWN,
};
ESP_ERROR_CHECK(mcpwm_new_timer(&timer_config, &timer_U));
ESP_ERROR_CHECK(mcpwm_new_timer(&timer_config, &timer_V));
@@ -72,14 +73,14 @@ void mcpwm_init(){
mcpwm_timer_sync_phase_config_t sync_phase_V_config =
{
.sync_src = sync_signal,
.count_value = periode_ticks/3, //120 degree delayed
.count_value = periode_ticks/6, //120 degree delayed
};
ESP_ERROR_CHECK(mcpwm_timer_set_phase_on_sync(timer_V,&sync_phase_V_config));
//set Timer_W as an Slave of Timer_U with another phase
mcpwm_timer_sync_phase_config_t sync_phase_W_config =
{
.sync_src = sync_signal,
.count_value = periode_ticks*2/3, //240 degree delayed
.count_value = periode_ticks*2/6, //240 degree delayed
};
ESP_ERROR_CHECK(mcpwm_timer_set_phase_on_sync(timer_W,&sync_phase_W_config));
@@ -105,13 +106,8 @@ void mcpwm_init(){
.flags.update_cmp_on_tez = true,
};
ESP_ERROR_CHECK(mcpwm_new_comparator(operator_U, &comparator_config,&comperator_U));
ESP_ERROR_CHECK(mcpwm_comparator_set_compare_value(comperator_U, periode_ticks*CONFIG_DUTY_PWM/100));//Duty_cycle from Config
ESP_ERROR_CHECK(mcpwm_new_comparator(operator_V, &comparator_config,&comperator_V));
ESP_ERROR_CHECK(mcpwm_comparator_set_compare_value(comperator_V, periode_ticks*CONFIG_DUTY_PWM/100));
ESP_ERROR_CHECK(mcpwm_new_comparator(operator_W, &comparator_config,&comperator_W));
ESP_ERROR_CHECK(mcpwm_comparator_set_compare_value(comperator_W,periode_ticks*CONFIG_DUTY_PWM/100));
mcpwm_gen_handle_t *mcpwm_gens[] ={&generator_U_HIN,&generator_U_LIN,&generator_V_HIN,&generator_V_LIN,&generator_W_HIN,&generator_W_LIN};
@@ -181,24 +177,28 @@ static void set_gen(Phase phase){
switch (phase) {
case PHASE_U:
ESP_ERROR_CHECK(mcpwm_generator_set_action_on_timer_event(generator_U_HIN, MCPWM_GEN_TIMER_EVENT_ACTION(MCPWM_TIMER_DIRECTION_UP, MCPWM_TIMER_EVENT_EMPTY, MCPWM_GEN_ACTION_HIGH)));
ESP_ERROR_CHECK(mcpwm_generator_set_action_on_compare_event(generator_U_HIN, MCPWM_GEN_COMPARE_EVENT_ACTION(MCPWM_TIMER_DIRECTION_UP, comperator_U, MCPWM_GEN_ACTION_LOW)));
ESP_ERROR_CHECK(mcpwm_generator_set_action_on_timer_event(generator_U_LIN, MCPWM_GEN_TIMER_EVENT_ACTION(MCPWM_TIMER_DIRECTION_UP, MCPWM_TIMER_EVENT_EMPTY, MCPWM_GEN_ACTION_HIGH)));
ESP_ERROR_CHECK(mcpwm_generator_set_action_on_compare_event(generator_U_HIN, MCPWM_GEN_COMPARE_EVENT_ACTION(MCPWM_TIMER_DIRECTION_DOWN, comperator_U, MCPWM_GEN_ACTION_HIGH)));
ESP_ERROR_CHECK(mcpwm_generator_set_action_on_compare_event(generator_U_LIN, MCPWM_GEN_COMPARE_EVENT_ACTION(MCPWM_TIMER_DIRECTION_UP, comperator_U, MCPWM_GEN_ACTION_LOW)));
ESP_ERROR_CHECK(mcpwm_generator_set_action_on_compare_event(generator_U_LIN, MCPWM_GEN_COMPARE_EVENT_ACTION(MCPWM_TIMER_DIRECTION_DOWN, comperator_U, MCPWM_GEN_ACTION_HIGH)));
break;
case PHASE_V:
ESP_ERROR_CHECK(mcpwm_generator_set_action_on_timer_event(generator_V_HIN, MCPWM_GEN_TIMER_EVENT_ACTION(MCPWM_TIMER_DIRECTION_UP, MCPWM_TIMER_EVENT_EMPTY, MCPWM_GEN_ACTION_HIGH)));
ESP_ERROR_CHECK(mcpwm_generator_set_action_on_compare_event(generator_V_HIN, MCPWM_GEN_COMPARE_EVENT_ACTION(MCPWM_TIMER_DIRECTION_UP, comperator_V, MCPWM_GEN_ACTION_LOW)));
ESP_ERROR_CHECK(mcpwm_generator_set_action_on_timer_event(generator_V_LIN, MCPWM_GEN_TIMER_EVENT_ACTION(MCPWM_TIMER_DIRECTION_UP, MCPWM_TIMER_EVENT_EMPTY, MCPWM_GEN_ACTION_HIGH)));
ESP_ERROR_CHECK(mcpwm_generator_set_action_on_compare_event(generator_V_HIN, MCPWM_GEN_COMPARE_EVENT_ACTION(MCPWM_TIMER_DIRECTION_DOWN, comperator_V, MCPWM_GEN_ACTION_HIGH)));
ESP_ERROR_CHECK(mcpwm_generator_set_action_on_compare_event(generator_V_LIN, MCPWM_GEN_COMPARE_EVENT_ACTION(MCPWM_TIMER_DIRECTION_UP, comperator_V, MCPWM_GEN_ACTION_LOW)));
ESP_ERROR_CHECK(mcpwm_generator_set_action_on_compare_event(generator_V_LIN, MCPWM_GEN_COMPARE_EVENT_ACTION(MCPWM_TIMER_DIRECTION_DOWN, comperator_V, MCPWM_GEN_ACTION_HIGH)));
break;
case PHASE_W:
ESP_ERROR_CHECK(mcpwm_generator_set_action_on_timer_event(generator_W_HIN, MCPWM_GEN_TIMER_EVENT_ACTION(MCPWM_TIMER_DIRECTION_UP, MCPWM_TIMER_EVENT_EMPTY, MCPWM_GEN_ACTION_HIGH)));
ESP_ERROR_CHECK(mcpwm_generator_set_action_on_compare_event(generator_W_HIN, MCPWM_GEN_COMPARE_EVENT_ACTION(MCPWM_TIMER_DIRECTION_UP, comperator_W, MCPWM_GEN_ACTION_LOW)));
ESP_ERROR_CHECK(mcpwm_generator_set_action_on_timer_event(generator_W_LIN, MCPWM_GEN_TIMER_EVENT_ACTION(MCPWM_TIMER_DIRECTION_UP, MCPWM_TIMER_EVENT_EMPTY, MCPWM_GEN_ACTION_HIGH)));
ESP_ERROR_CHECK(mcpwm_generator_set_action_on_compare_event(generator_W_HIN, MCPWM_GEN_COMPARE_EVENT_ACTION(MCPWM_TIMER_DIRECTION_DOWN, comperator_W, MCPWM_GEN_ACTION_HIGH)));
ESP_ERROR_CHECK(mcpwm_generator_set_action_on_compare_event(generator_W_LIN, MCPWM_GEN_COMPARE_EVENT_ACTION(MCPWM_TIMER_DIRECTION_UP, comperator_W, MCPWM_GEN_ACTION_LOW)));
ESP_ERROR_CHECK(mcpwm_generator_set_action_on_compare_event(generator_W_LIN, MCPWM_GEN_COMPARE_EVENT_ACTION(MCPWM_TIMER_DIRECTION_DOWN, comperator_W, MCPWM_GEN_ACTION_HIGH)));
break;
default:
@@ -224,18 +224,18 @@ static void set_lowside(Phase lowside){
break;
}
}
static void set_highside(Phase highside, float Duty){
static void set_highside(Phase highside){
HighsidePhase = highside;
switch (highside){
case PHASE_U:
ESP_ERROR_CHECK(mcpwm_comparator_set_compare_value(comperator_U, periode_ticks*Duty/100));
ESP_ERROR_CHECK(mcpwm_comparator_set_compare_value(comperator_U, (periode_ticks*duty/100)/2));
break;
case PHASE_V:
ESP_ERROR_CHECK(mcpwm_comparator_set_compare_value(comperator_V, periode_ticks*Duty/100));
ESP_ERROR_CHECK(mcpwm_comparator_set_compare_value(comperator_V, (periode_ticks*duty/100)/2));
break;
case PHASE_W:
ESP_ERROR_CHECK(mcpwm_comparator_set_compare_value(comperator_W, periode_ticks*Duty/100));
ESP_ERROR_CHECK(mcpwm_comparator_set_compare_value(comperator_W, (periode_ticks*duty/100)/2));
break;
default:
@@ -245,19 +245,60 @@ static void set_highside(Phase highside, float Duty){
}
void set_mcpwm_output(Phase highside, Phase lowside, float Duty){
set_highside(highside, Duty);
esp_err_t set_mcpwm_output(Phase highside, Phase lowside){
if (timer_U == NULL) {
return ESP_ERR_INVALID_STATE; // Fehlerbehandlung, wenn mcpwm nicht initialisiert wurde
}
set_highside(highside);
set_gen(highside);
set_lowside(lowside);
set_gen(lowside);
return ESP_OK;
}
void set_mcpwm_duty(float Duty){
set_highside(HighsidePhase, Duty);
esp_err_t set_mcpwm_duty(float new_duty){
if (timer_U == NULL) {
return ESP_ERR_INVALID_STATE; // Fehlerbehandlung, wenn mcpwm nicht initialisiert wurde
}
duty = new_duty;
set_highside(HighsidePhase);
return ESP_OK;
}
esp_err_t set_mcpwm_frequenzy(uint16_t frequency){
if (timer_U == NULL) {
return ESP_ERR_INVALID_STATE; // Fehlerbehandlung, wenn mcpwm nicht initialisiert wurde
}
periode_ticks = CONFIG_TIMER_BASE_FREQ/frequency;
// Timer stoppen, wenn er läuft
ESP_ERROR_CHECK(mcpwm_timer_disable(timer_U));
ESP_ERROR_CHECK(mcpwm_timer_disable(timer_V));
ESP_ERROR_CHECK(mcpwm_timer_disable(timer_W));
// Neue Konfiguration anwenden
ESP_ERROR_CHECK(mcpwm_timer_set_period(timer_U, periode_ticks));
ESP_ERROR_CHECK(mcpwm_timer_set_period(timer_V, periode_ticks));
ESP_ERROR_CHECK(mcpwm_timer_set_period(timer_W, periode_ticks));
// dutycycle an neue Frequenz anpassen
set_mcpwm_duty(duty);
// Timer wieder starten
ESP_ERROR_CHECK(mcpwm_timer_enable(timer_U));
ESP_ERROR_CHECK(mcpwm_timer_enable(timer_V));
ESP_ERROR_CHECK(mcpwm_timer_enable(timer_W));
return ESP_OK;
}
void get_comps(mcpwm_cmpr_handle_t comps[3]) {
comps[0] = comperator_U;
comps[1] = comperator_V;
comps[2] = comperator_W;
}
float get_duty() {
return duty;
}