Search found 5 matches

by sparky3822
Thu Oct 17, 2019 8:53 pm
Forum: Hardware
Topic: What is the state of non RTC GPIO in deep-sleep? Tristate?
Replies: 0
Views: 2212

What is the state of non RTC GPIO in deep-sleep? Tristate?

For ESP32 GPIO that do not have RTC capability, what is their state in deep sleep? Are they disconnected? Tri-state? Undefined?
I couldn't find this documented in the datasheet.
by sparky3822
Thu Oct 17, 2019 8:44 pm
Forum: ESP-IDF
Topic: esp_wifi_disconnect() hangs
Replies: 2
Views: 3898

Re: esp_wifi_disconnect() hangs

The reason why esp_wifi_disconnect() would never return is because I was calling it from an esp_timer callback. Which I guess isn't permitted.

Maybe similar to https://github.com/espressif/esp-idf/issues/4115
by sparky3822
Wed Apr 17, 2019 11:37 pm
Forum: General Discussion
Topic: ESP32 simultaneous a2dp sink/source?
Replies: 5
Views: 9085

Re: ESP32 simultaneous a2dp sink/source?

Hello, any updates on this capability? i.e. Can ESP32 work with a Bluetooth device that has both speaker and microphone?

Thanks,

Carl
by sparky3822
Wed Feb 13, 2019 10:42 pm
Forum: ESP-IDF
Topic: esp_wifi_disconnect() hangs
Replies: 2
Views: 3898

esp_wifi_disconnect() hangs

I'm working on a provisioning feature with my code. After successful I stop the provisioning service I then call esp_wifi_disconnect() which never returns.

Where can I find the source code for esp_wifi_disconnect() to troubleshoot?
by sparky3822
Wed Dec 19, 2018 1:00 am
Forum: ESP-IDF
Topic: I2S_write blocks with unfilled DMA buffers
Replies: 0
Views: 2459

I2S_write blocks with unfilled DMA buffers

The i2s_write() call blocks when I try to pre-fill the TX DMA buffers. I'd like to fill the DMA buffers before I call I2S_start() to minimize the possibility of underruns. However, i2s_write() doesn't return unless I2S is already started. Upon further testing and inspecting the i2s.c code, it seems,...