[4.0.1] MCPWM fault not work (IDFGH-3473) #5433

Wielebny666 · 2020-06-11T12:50:59Z

Environment

IDF version 4.0.1
Compiler version xtensa-esp32-elf-gcc (crosstool-NG esp-2019r2) 8.2.0
Operating System: [Windows]
(Windows only) environment type: [ESP Command Prompt]
Using an IDE?: [Eclipse]
Power Supply: [USB]

Problem Description

Changing the fault signal has no effect on outputs A and B.

Code to reproduce this issue

	mcpwm_pin_config_t pin_config =
		{
			.mcpwm0a_out_num = output_a,
			.mcpwm0b_out_num = output_b,
			.mcpwm_fault0_in_num = GPIO_NUM_14,
		};

	ESP_ERROR_CHECK(mcpwm_set_pin(MCPWM_UNIT_0, &pin_config));

	mcpwm_config_t mcpwm_config =
		{
			.frequency = MOSFET_PWM_INIT_FREQ,
			.cmpr_a = 50.0,
			.cmpr_b = 50.0,
			.counter_mode = MCPWM_UP_DOWN_COUNTER,
		};

	ESP_ERROR_CHECK(mcpwm_init(MCPWM_UNIT_0, MCPWM_TIMER_0, &mcpwm_config));
	ESP_ERROR_CHECK(mcpwm_stop(MCPWM_UNIT_0, MCPWM_TIMER_0));
	ESP_ERROR_CHECK(mcpwm_set_duty_type(MCPWM_UNIT_0, MCPWM_TIMER_0, MCPWM_OPR_A, MCPWM_DUTY_MODE_0));
	ESP_ERROR_CHECK(mcpwm_set_duty_type(MCPWM_UNIT_0, MCPWM_TIMER_0, MCPWM_OPR_B, MCPWM_DUTY_MODE_1));

	ESP_LOGI(TAG, "MCPWM Fault init...");
	gpio_pulldown_en(GPIO_NUM_14);
	ESP_ERROR_CHECK(mcpwm_fault_init(MCPWM_UNIT_0, MCPWM_HIGH_LEVEL_TGR, MCPWM_SELECT_F0));
	ESP_ERROR_CHECK(mcpwm_fault_set_cyc_mode(MCPWM_UNIT_0, MCPWM_TIMER_0, MCPWM_SELECT_F0, MCPWM_FORCE_MCPWMXA_LOW, MCPWM_FORCE_MCPWMXB_LOW));

	ESP_ERROR_CHECK(mcpwm_start(MCPWM_UNIT_0, MCPWM_TIMER_0));

I tried with mcpwm_basic_config_example.c and also not work.

Alvin1Zhang · 2020-06-12T01:02:52Z

Thanks for reporting, we will look into.

Wielebny666 · 2020-06-14T12:40:12Z

Some conclusions?

koobest · 2020-06-15T03:19:45Z

Hi, @Wielebny666
I can not reproduce your issue with your test code.

I would suggest that you configure IO in this way:

    mcpwm_gpio_init(MCPWM_UNIT_0, MCPWM0A, 18);
    mcpwm_gpio_init(MCPWM_UNIT_0, MCPWM0A, 19);
    mcpwm_gpio_init(MCPWM_UNIT_0, MCPWM_FAULT_0, 5);

Wielebny666 · 2020-06-15T06:00:21Z

This is strange.

#doesn't work

		mcpwm_pin_config_t pin_config =
			{
				.mcpwm0a_out_num = output_a,
				.mcpwm0b_out_num = output_b,
				.mcpwm1a_out_num = GPIO_NUM_NC,
				.mcpwm1b_out_num = GPIO_NUM_NC,
				.mcpwm2a_out_num = GPIO_NUM_NC,
				.mcpwm2b_out_num = GPIO_NUM_NC,
				.mcpwm_sync0_in_num = GPIO_NUM_NC,
				.mcpwm_sync1_in_num = GPIO_NUM_NC,
				.mcpwm_sync2_in_num = GPIO_NUM_NC,
				.mcpwm_fault0_in_num = input_shutdown,
				.mcpwm_fault1_in_num =  GPIO_NUM_NC,
				.mcpwm_fault2_in_num =  GPIO_NUM_NC,
				.mcpwm_cap0_in_num =  GPIO_NUM_NC,
				.mcpwm_cap1_in_num =  GPIO_NUM_NC,
				.mcpwm_cap2_in_num =  GPIO_NUM_NC,
			};

		ESP_ERROR_CHECK(mcpwm_set_pin(MCPWM_UNIT_0, &pin_config));

#work

	mcpwm_gpio_init(MCPWM_UNIT_0, MCPWM0A, output_a);
	mcpwm_gpio_init(MCPWM_UNIT_0, MCPWM0B, output_b);
	mcpwm_gpio_init(MCPWM_UNIT_0, MCPWM_FAULT_0, input_shutdown);

koobest · 2020-06-15T06:27:59Z

Hi, @Wielebny666

mcpwm_pin_config_t contains other pins' configuration, if not used, you should set it to -1.

Wielebny666 · 2020-06-15T06:32:14Z

I know.
gpio.h:

    GPIO_NUM_NC = -1,    /*!< Use to signal not connected to S/W */

wilhelmw201 · 2020-06-18T09:44:10Z

hi,
are you sure this doesn't work?
mcpwm_pin_config_t pin_config =
{
.mcpwm0a_out_num = output_a,
.mcpwm0b_out_num = output_b,
.mcpwm1a_out_num = GPIO_NUM_NC,
.mcpwm1b_out_num = GPIO_NUM_NC,
.mcpwm2a_out_num = GPIO_NUM_NC,
.mcpwm2b_out_num = GPIO_NUM_NC,
.mcpwm_sync0_in_num = GPIO_NUM_NC,
.mcpwm_sync1_in_num = GPIO_NUM_NC,
.mcpwm_sync2_in_num = GPIO_NUM_NC,
.mcpwm_fault0_in_num = input_shutdown,
.mcpwm_fault1_in_num = GPIO_NUM_NC,
.mcpwm_fault2_in_num = GPIO_NUM_NC,
.mcpwm_cap0_in_num = GPIO_NUM_NC,
.mcpwm_cap1_in_num = GPIO_NUM_NC,
.mcpwm_cap2_in_num = GPIO_NUM_NC,
};
ESP_ERROR_CHECK(mcpwm_set_pin(MCPWM_UNIT_0, &pin_config));

Here is a program that i used to test your code. It seems to run correctly on my board. I suspect you didn't call mcpwm_fault_set_cyc_mode to specify the bahavior when a fault is detected, in which the default is MCPWM_ACTION_NO_CHANGE.

mcpwm_config_t pwm_config;
pwm_config.frequency = 300;                        
pwm_config.cmpr_a = 25.0;                               
pwm_config.cmpr_b = 35.0;                               
pwm_config.counter_mode = MCPWM_UP_DOWN_COUNTER;       
pwm_config.duty_mode = MCPWM_DUTY_MODE_0;              
mcpwm_init(MCPWM_UNIT_0, MCPWM_TIMER_0, &pwm_config);  

int output_a = 4;
int output_b = 2;
int input_shutdown = 25;

mcpwm_pin_config_t pin_config =
{
    .mcpwm0a_out_num = output_a,
    .mcpwm0b_out_num = output_b,
    .mcpwm1a_out_num = GPIO_NUM_NC,
    .mcpwm1b_out_num = GPIO_NUM_NC,
    .mcpwm2a_out_num = GPIO_NUM_NC,
    .mcpwm2b_out_num = GPIO_NUM_NC,
    .mcpwm_sync0_in_num = GPIO_NUM_NC,
    .mcpwm_sync1_in_num = GPIO_NUM_NC,
    .mcpwm_sync2_in_num = GPIO_NUM_NC,
    .mcpwm_fault0_in_num = input_shutdown,
    .mcpwm_fault1_in_num =  GPIO_NUM_NC,
    .mcpwm_fault2_in_num =  GPIO_NUM_NC,
    .mcpwm_cap0_in_num =  GPIO_NUM_NC,
    .mcpwm_cap1_in_num =  GPIO_NUM_NC,
    .mcpwm_cap2_in_num =  GPIO_NUM_NC,
};
ESP_ERROR_CHECK(mcpwm_set_pin(MCPWM_UNIT_0, &pin_config));


mcpwm_fault_set_cyc_mode(MCPWM_UNIT_0, MCPWM_TIMER_0, MCPWM_SELECT_F0, MCPWM_ACTION_FORCE_LOW, MCPWM_ACTION_FORCE_LOW);
ESP_ERROR_CHECK(mcpwm_fault_init(MCPWM_UNIT_0, MCPWM_HIGH_LEVEL_TGR, MCPWM_SELECT_F0));

for(;;)
{
    printf("Fault pin: %d\n", gpio_get_level(input_shutdown));
    vTaskDelay(pdMS_TO_TICKS(1000));
}

Alvin1Zhang · 2020-06-23T03:53:20Z

@Wielebny666 Would you please help share if any updates for this issue? Thanks.

Wielebny666 · 2020-06-23T07:50:15Z

Hi,

[...] I suspect you didn't call mcpwm_fault_set_cyc_mode to specify the bahavior when a fault is detected, in which the default is MCPWM_ACTION_NO_CHANGE.

Seriously?

my code:

[...]
ESP_ERROR_CHECK(mcpwm_fault_init(MCPWM_UNIT_0, MCPWM_HIGH_LEVEL_TGR, MCPWM_SELECT_F0)); 
ESP_ERROR_CHECK(mcpwm_fault_set_cyc_mode(MCPWM_UNIT_0, MCPWM_TIMER_0, MCPWM_SELECT_F0, MCPWM_FORCE_MCPWMXA_LOW, MCPWM_FORCE_MCPWMXB_LOW));
[...]

I changed nothing in the code except gpio initiation and it started working.

Difference between my and your code is in the order of calls mcpwm_fault_init and mcpwm_fault_set_cyc_mode.

I will check it again today...

Wielebny666 · 2020-06-23T19:06:45Z

OK, i admit mea culpa.

This work

	mcpwm_pin_config_t pin_config =
		{
			.mcpwm0a_out_num = output_a,
			.mcpwm0b_out_num = output_b,
			.mcpwm1a_out_num = GPIO_NUM_NC,
			.mcpwm1b_out_num = GPIO_NUM_NC,
			.mcpwm2a_out_num = GPIO_NUM_NC,
			.mcpwm2b_out_num = GPIO_NUM_NC,
			.mcpwm_sync0_in_num = GPIO_NUM_NC,
			.mcpwm_sync1_in_num = GPIO_NUM_NC,
			.mcpwm_sync2_in_num = GPIO_NUM_NC,
			.mcpwm_fault0_in_num = input_pwm,
			.mcpwm_fault1_in_num =  GPIO_NUM_NC,
			.mcpwm_fault2_in_num =  GPIO_NUM_NC,
			.mcpwm_cap0_in_num =  GPIO_NUM_NC,
			.mcpwm_cap1_in_num =  GPIO_NUM_NC,
			.mcpwm_cap2_in_num =  GPIO_NUM_NC,
		};

	ESP_ERROR_CHECK(mcpwm_set_pin(MCPWM_UNIT_0, &pin_config));

	mcpwm_config_t mcpwm_config =
		{
			.frequency = MOSFET_PWM_INIT_FREQ,
			.cmpr_a = 50.0,
			.cmpr_b = 50.0,
			.counter_mode = MCPWM_UP_DOWN_COUNTER, };

	ESP_ERROR_CHECK(mcpwm_init(MCPWM_UNIT_0, MCPWM_TIMER_0, &mcpwm_config));

	ESP_ERROR_CHECK(mcpwm_stop(MCPWM_UNIT_0, MCPWM_TIMER_0));
	ESP_ERROR_CHECK(mcpwm_set_duty_type(MCPWM_UNIT_0, MCPWM_TIMER_0, MCPWM_OPR_A, MCPWM_DUTY_MODE_0));
	ESP_ERROR_CHECK(mcpwm_set_duty_type(MCPWM_UNIT_0, MCPWM_TIMER_0, MCPWM_OPR_B, MCPWM_DUTY_MODE_1));

	ESP_ERROR_CHECK(mcpwm_fault_init(MCPWM_UNIT_0, MCPWM_LOW_LEVEL_TGR, MCPWM_SELECT_F0));
	ESP_ERROR_CHECK(mcpwm_fault_set_cyc_mode(MCPWM_UNIT_0, MCPWM_TIMER_0, MCPWM_SELECT_F0, MCPWM_FORCE_MCPWMXA_LOW, MCPWM_FORCE_MCPWMXB_LOW));

	ESP_ERROR_CHECK(mcpwm_start(MCPWM_UNIT_0, MCPWM_TIMER_0));

but, not work

	mcpwm_pin_config_t pin_config =
		{
			.mcpwm0a_out_num = output_a,
			.mcpwm0b_out_num = output_b,
			.mcpwm1a_out_num = GPIO_NUM_NC,
			.mcpwm1b_out_num = GPIO_NUM_NC,
			.mcpwm2a_out_num = GPIO_NUM_NC,
			.mcpwm2b_out_num = GPIO_NUM_NC,
			.mcpwm_sync0_in_num = GPIO_NUM_NC,
			.mcpwm_sync1_in_num = GPIO_NUM_NC,
			.mcpwm_sync2_in_num = GPIO_NUM_NC,
			.mcpwm_fault0_in_num =  GPIO_NUM_NC,
			.mcpwm_fault1_in_num = input_shutdown,
			.mcpwm_fault2_in_num =  GPIO_NUM_NC,
			.mcpwm_cap0_in_num =  GPIO_NUM_NC,
			.mcpwm_cap1_in_num =  GPIO_NUM_NC,
			.mcpwm_cap2_in_num =  GPIO_NUM_NC,
		};

	ESP_ERROR_CHECK(mcpwm_set_pin(MCPWM_UNIT_0, &pin_config));

	mcpwm_config_t mcpwm_config =
		{
			.frequency = MOSFET_PWM_INIT_FREQ,
			.cmpr_a = 50.0,
			.cmpr_b = 50.0,
			.counter_mode = MCPWM_UP_DOWN_COUNTER, };

	ESP_ERROR_CHECK(mcpwm_init(MCPWM_UNIT_0, MCPWM_TIMER_0, &mcpwm_config));

	ESP_ERROR_CHECK(mcpwm_stop(MCPWM_UNIT_0, MCPWM_TIMER_0));
	ESP_ERROR_CHECK(mcpwm_set_duty_type(MCPWM_UNIT_0, MCPWM_TIMER_0, MCPWM_OPR_A, MCPWM_DUTY_MODE_0));
	ESP_ERROR_CHECK(mcpwm_set_duty_type(MCPWM_UNIT_0, MCPWM_TIMER_0, MCPWM_OPR_B, MCPWM_DUTY_MODE_1));

	ESP_ERROR_CHECK(mcpwm_fault_init(MCPWM_UNIT_0, MCPWM_LOW_LEVEL_TGR, MCPWM_SELECT_F1));
	ESP_ERROR_CHECK(mcpwm_fault_set_cyc_mode(MCPWM_UNIT_0, MCPWM_TIMER_0, MCPWM_SELECT_F1, MCPWM_FORCE_MCPWMXA_LOW, MCPWM_FORCE_MCPWMXB_LOW));

	ESP_ERROR_CHECK(mcpwm_start(MCPWM_UNIT_0, MCPWM_TIMER_0));

and also not work:

	mcpwm_pin_config_t pin_config =
		{
			.mcpwm0a_out_num = output_a,
			.mcpwm0b_out_num = output_b,
			.mcpwm1a_out_num = GPIO_NUM_NC,
			.mcpwm1b_out_num = GPIO_NUM_NC,
			.mcpwm2a_out_num = GPIO_NUM_NC,
			.mcpwm2b_out_num = GPIO_NUM_NC,
			.mcpwm_sync0_in_num = GPIO_NUM_NC,
			.mcpwm_sync1_in_num = GPIO_NUM_NC,
			.mcpwm_sync2_in_num = GPIO_NUM_NC,
			.mcpwm_fault0_in_num = input_pwm,
			.mcpwm_fault1_in_num = input_shutdown,
			.mcpwm_fault2_in_num =  GPIO_NUM_NC,
			.mcpwm_cap0_in_num =  GPIO_NUM_NC,
			.mcpwm_cap1_in_num =  GPIO_NUM_NC,
			.mcpwm_cap2_in_num =  GPIO_NUM_NC,
		};

	ESP_ERROR_CHECK(mcpwm_set_pin(MCPWM_UNIT_0, &pin_config));

	mcpwm_config_t mcpwm_config =
		{
			.frequency = MOSFET_PWM_INIT_FREQ,
			.cmpr_a = 50.0,
			.cmpr_b = 50.0,
			.counter_mode = MCPWM_UP_DOWN_COUNTER, };

	ESP_ERROR_CHECK(mcpwm_init(MCPWM_UNIT_0, MCPWM_TIMER_0, &mcpwm_config));

	ESP_ERROR_CHECK(mcpwm_stop(MCPWM_UNIT_0, MCPWM_TIMER_0));
	ESP_ERROR_CHECK(mcpwm_set_duty_type(MCPWM_UNIT_0, MCPWM_TIMER_0, MCPWM_OPR_A, MCPWM_DUTY_MODE_0));
	ESP_ERROR_CHECK(mcpwm_set_duty_type(MCPWM_UNIT_0, MCPWM_TIMER_0, MCPWM_OPR_B, MCPWM_DUTY_MODE_1));

	ESP_ERROR_CHECK(mcpwm_fault_init(MCPWM_UNIT_0, MCPWM_LOW_LEVEL_TGR, MCPWM_SELECT_F0));
	ESP_ERROR_CHECK(mcpwm_fault_set_cyc_mode(MCPWM_UNIT_0, MCPWM_TIMER_0, MCPWM_SELECT_F0, MCPWM_FORCE_MCPWMXA_LOW, MCPWM_FORCE_MCPWMXB_LOW));

	ESP_ERROR_CHECK(mcpwm_fault_init(MCPWM_UNIT_0, MCPWM_LOW_LEVEL_TGR, MCPWM_SELECT_F1));
	ESP_ERROR_CHECK(mcpwm_fault_set_cyc_mode(MCPWM_UNIT_0, MCPWM_TIMER_0, MCPWM_SELECT_F1, MCPWM_FORCE_MCPWMXA_LOW, MCPWM_FORCE_MCPWMXB_LOW));

	ESP_ERROR_CHECK(mcpwm_start(MCPWM_UNIT_0, MCPWM_TIMER_0));

when init via mcpwm_gpio_init
all configuration work correctly.

Wielebny666 · 2020-06-25T21:54:20Z

This problem is in all ver from 2.1 to master

Wielebny666 · 2020-07-09T08:08:56Z

Why nobody approved pull requests?
Is 4.0 branch still alive?

costaud · 2020-07-09T09:38:41Z

fixed in master branch, will be backported to 4.0 soon.

Wielebny666 · 2020-07-09T12:50:58Z

fixed in master branch, will be backported to 4.0 soon.

are you sure?

Signed-off-by: wubowen <wubowen@espressif.com> Merges #5491 Closes #5433

Wielebny666 · 2020-07-29T13:50:06Z

fixed in master branch, will be backported to 4.0 soon.

20 days have passed and there is still no patch in branch 4.0

Wielebny666 · 2020-07-31T10:25:07Z

Please reopen.

Signed-off-by: wubowen <wubowen@espressif.com> Merges #5491 Closes #5433

Alvin1Zhang · 2020-08-03T01:37:45Z

Thanks for reporting, and reopened the ticket, will update once the fix on release/4.0 is available on GitHub. Thanks.

Alvin1Zhang · 2020-08-05T03:35:40Z

Thanks for reporting and sorry for slow turnaround. Fix on release/4.0 is available at fcb0206, feel free to reopen if the issue still happens.

Wielebny666 · 2020-08-05T07:58:02Z

This problem is in all ver from 2.1 to master

Reopen, please check other versions.

Wielebny666 · 2020-09-07T11:56:28Z

Relase v4.1 stable have this same problem.
REOPEN

Ethan-CYQ · 2020-09-08T06:44:04Z

Hi, @Wielebny666
Release/v4.1 have solved this problem in our internal gitlab,
but have no synchronize to github yet. We will do that as soon as possible.

Signed-off-by: wubowen <wubowen@espressif.com> Merges #5491 Closes #5433

Alvin1Zhang · 2020-12-16T06:33:09Z

Fix on release/4.0 is fcb0206, feel free to reopen. Thanks.

github-actions bot changed the title ~~[4.0.1] MCPWM fault not work~~ [4.0.1] MCPWM fault not work (IDFGH-3473) Jun 11, 2020

Wielebny666 mentioned this issue Jun 23, 2020

Fix init MCPWM Fault line via config struct (IDFGH-3473) (IDFGH-3539) #5491

Closed

espressif-bot closed this as completed in 77e5aa9 Jul 10, 2020

espressif-bot pushed a commit that referenced this issue Jul 25, 2020

Fix init MCPWM Fault line via config struct

e64d137

Signed-off-by: wubowen <wubowen@espressif.com> Merges #5491 Closes #5433

espressif-bot pushed a commit that referenced this issue Aug 1, 2020

Fix init MCPWM Fault line via config struct

067d840

Signed-off-by: wubowen <wubowen@espressif.com> Merges #5491 Closes #5433

Alvin1Zhang reopened this Aug 3, 2020

Alvin1Zhang closed this as completed Aug 5, 2020

Alvin1Zhang reopened this Sep 8, 2020

espressif-bot pushed a commit that referenced this issue Sep 10, 2020

Fix init MCPWM Fault line via config struct

b6e69b5

Signed-off-by: wubowen <wubowen@espressif.com> Merges #5491 Closes #5433

espressif-bot pushed a commit that referenced this issue Oct 30, 2020

Fix init MCPWM Fault line via config struct

fc8ba15

Signed-off-by: wubowen <wubowen@espressif.com> Merges #5491 Closes #5433

Alvin1Zhang closed this as completed Dec 16, 2020

espressif-bot added the Status: Done Issue is done internally label Mar 12, 2021

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[4.0.1] MCPWM fault not work (IDFGH-3473) #5433

[4.0.1] MCPWM fault not work (IDFGH-3473) #5433

Wielebny666 commented Jun 11, 2020

Alvin1Zhang commented Jun 12, 2020

Wielebny666 commented Jun 14, 2020

koobest commented Jun 15, 2020

Wielebny666 commented Jun 15, 2020

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Wielebny666 commented Jul 29, 2020 •

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Ethan-CYQ commented Sep 8, 2020

Alvin1Zhang commented Dec 16, 2020

[4.0.1] MCPWM fault not work (IDFGH-3473) #5433

[4.0.1] MCPWM fault not work (IDFGH-3473) #5433

Comments

Wielebny666 commented Jun 11, 2020

Environment

Problem Description

Code to reproduce this issue

Alvin1Zhang commented Jun 12, 2020

Wielebny666 commented Jun 14, 2020

koobest commented Jun 15, 2020

Wielebny666 commented Jun 15, 2020

koobest commented Jun 15, 2020

Wielebny666 commented Jun 15, 2020

wilhelmw201 commented Jun 18, 2020 • edited Loading

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