Search found 47 matches

by clarkster
Tue Aug 28, 2018 3:16 am
Forum: ESP-IDF
Topic: My long path to configuring the RMT and PCNT to share GPIO
Replies: 14
Views: 19528

Re: My long path to configuring the RMT and PCNT to share GPIO

Hello Paul Nothing I did was to improve throughput. I was using the RMT and PCNT send pulses to a stepper motor and to count those pulses. And I wanted the RMT and PCNT to share GPIO. I did not want to have to utilize two GPIO for the RMT and two GPIO for the PCNT, jumping the IO together, when I su...
by clarkster
Mon Apr 23, 2018 5:00 pm
Forum: General Discussion
Topic: [Q] pp 1 in the log and xTaskCreatePinnedToCore opposite to xTaskCreate
Replies: 3
Views: 7299

Re: [Q] pp 1 in the log and xTaskCreatePinnedToCore opposite to xTaskCreate

@ESP_Sprite
Should we still default to pinning to core?
by clarkster
Fri Apr 13, 2018 10:10 pm
Forum: ESP-IDF
Topic: vTaskDelay hangs
Replies: 6
Views: 8954

Re: vTaskDelay hangs

Thanks for the help, guys. Looks like I need to do some study.

How do I do this - "make sure that you have enabled watchdogs to report on stalled tasks"?
by clarkster
Fri Apr 13, 2018 5:09 pm
Forum: ESP-IDF
Topic: vTaskDelay hangs
Replies: 6
Views: 8954

Re: vTaskDelay hangs

Thanks for your help, kolban. There are several tasks in my program. Here is a jpg image describing my task architecture. StepperTaskArchitecture.jpg The abs_stepper_run function is called in the run_steppers task. When I comment out the abs_stepper_run calls, the code works normally - all the messa...
by clarkster
Fri Apr 13, 2018 3:35 am
Forum: ESP-IDF
Topic: vTaskDelay hangs
Replies: 6
Views: 8954

vTaskDelay hangs

Here is one of the functions I use to test some stepper drivers: abs_stepper_run(STEPPER_0, 10, 45, 8); ESP_LOGE(STEPPER_TAG, "1st command sent"); vTaskDelay(1000 / portTICK_PERIOD_MS); ESP_LOGE(STEPPER_TAG, "1st delay done"); abs_stepper_run(STEPPER_0, 10, -45, 8); ESP_LOGE(STEPPER_TAG, "2nd comman...
by clarkster
Fri Apr 06, 2018 10:22 pm
Forum: ESP-IDF
Topic: How change PCNT threshold value?
Replies: 9
Views: 14539

Re: How change PCNT threshold value?

Thanks for looking into this. This behavior will make it harder to properly control the PCNT.

Is it possible to fix it so you don't have to reset the counter to update the threshold values? I'm guessing this is not in the IDF but rather at a lower level? And doesn't that mean it will be hard to fix?
by clarkster
Thu Apr 05, 2018 2:19 pm
Forum: ESP-IDF
Topic: How change PCNT threshold value?
Replies: 9
Views: 14539

Re: How change PCNT threshold value?

I modified the program a bit by removing the task and causing the PCNT threshold to change on the main thread. Now I am getting the same result I see in my program....the change in the threshold is ignored. I'm guessing that trying to change a threshold in another thread is what causes the crash. He...
by clarkster
Thu Apr 05, 2018 2:29 am
Forum: ESP-IDF
Topic: How change PCNT threshold value?
Replies: 9
Views: 14539

Re: How change PCNT threshold value?

Here you go... /* Pulse counter module - Example For other examples please check: https://github.com/espressif/esp-idf/tree/master/examples This example code is in the Public Domain (or CC0 licensed, at your option.) Unless required by applicable law or agreed to in writing, this software is distrib...
by clarkster
Thu Apr 05, 2018 2:00 am
Forum: ESP-IDF
Topic: How change PCNT threshold value?
Replies: 9
Views: 14539

How change PCNT threshold value?

I need to sometimes change the value for PCNT_EVT_THRES_0. I initially set it when I configure the PCNT and if I try to change it anywhere else in my program I get this crash.... Guru Meditation Error: Core 0 panic'ed (IllegalInstruction) . Exception was unhandled. Core 0 register dump: PC : 0x400d2...
by clarkster
Thu Apr 05, 2018 1:50 am
Forum: General Discussion
Topic: What is the best environment to work with ESP32 projects
Replies: 5
Views: 25641

Re: What is the best environment to work with ESP32 projects

I use MacOS with Eclipse. I only develop using the ESP IDF, not Arduino. This works very well for me. Eclipse is a nice environment. Much better than Arduino.

Someday I need to figure out how to use JTAG. I'm weary of inserting print statements.