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by ESP_Sprite
Mon Mar 25, 2019 4:07 am
Forum: ESP32 IDF
Topic: Please help me with ESP32 Guru meditation error core 0
Replies: 11
Views: 329

Re: Please help me with ESP32 Guru meditation error core 0

Just guessing here, as I'm not that familiar with the mqtt code, but are you sure the topic and data are zero-terminated? If not, the strcpy will copy lots of bytes, overwriting lots of static data.
by ESP_Sprite
Mon Mar 25, 2019 3:58 am
Forum: ESP32 IDF
Topic: Read from I2S without blocking call
Replies: 1
Views: 28

Re: Read from I2S without blocking call

You'd normally use a dedicated thread for reading the I2S peripheral, which then does whatever needs doing with the output data. You'd run other responsibilities in other tasks.
by ESP_Sprite
Mon Mar 25, 2019 3:55 am
Forum: ESP32 IDF
Topic: external GPIO Interrupts without RTOS framework?
Replies: 1
Views: 44

Re: external GPIO Interrupts without RTOS framework?

Yes. You'd have to forego anything that interfaces with the RTOS in the ISR, though.
by ESP_Sprite
Mon Mar 25, 2019 3:46 am
Forum: Hardware
Topic: Problem with Programming the NodeMCU 32 Module with the Arduino IDE
Replies: 1
Views: 35

Re: Problem with Programming the NodeMCU 32 Module with the Arduino IDE

That's an ESP8266 module, not an ESP32 one.
by ESP_Sprite
Mon Mar 25, 2019 3:41 am
Forum: General Discussion
Topic: Questions about internal RTC
Replies: 1
Views: 24

Re: Questions about internal RTC

Yes, the RTC doesn't know the current time from CPU start, and it will reset when the chip is reset externally or the power goes away. Implementing deep sleep would be the thing to do. I think you can set the RTC manually using settimeofday(), by the way.
by ESP_Sprite
Mon Mar 25, 2019 3:34 am
Forum: General Discussion
Topic: device Hangs
Replies: 2
Views: 28

Re: device Hangs

Any chance you can force a core dump, using e.g. a button irq or something?
by ESP_Sprite
Mon Mar 25, 2019 3:32 am
Forum: ESP32 Arduino
Topic: esp32 mDNS
Replies: 2
Views: 16

Re: esp32 mDNS

Moved to the Arduino subforum.
by ESP_Sprite
Thu Mar 21, 2019 12:37 pm
Forum: Hardware
Topic: PSRAM WROVER-KIT_V3
Replies: 2
Views: 96

Re: PSRAM WROVER-KIT_V3

1. What do you mean by 'TDK'? 2. That's pretty hard... the ESP32 accesses flash and PSRAM through more-or-less the same lines, so if you need to write directly to PSRAM, you either have to stop just about all processes in the ESP32, or you need to somehow disconnect the PSRAM chip from the ESP32. As...
by ESP_Sprite
Thu Mar 21, 2019 12:30 pm
Forum: ESP32 IDF
Topic: Please help me with ESP32 Guru meditation error core 0
Replies: 11
Views: 329

Re: Please help me with ESP32 Guru meditation error core 0

How are your strings (like str_topic) allocated?
by ESP_Sprite
Thu Mar 21, 2019 7:47 am
Forum: ESP32 Arduino
Topic: FreeRTOS, dual-core, two task, ...to slow
Replies: 11
Views: 335

Re: FreeRTOS, dual-core, two task, ...to slow

FWIW, you obviously can try to use the chips for anything you like if you so please, but you should know you're going a little bit against the architecture here... the Xtensa is quick because of lots of pipelining and a bunch of architectural details, but these same things make it slightly more expe...

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