Thanks for the tip. We will try to check that and come back to you when we have more info.

Looking at what uart_driver_install does, you may need to call 'uart_module_enable' before doing anything else... it could be that your UART still is clockgated and as such doesn't do anything. I tried adding the UART module enable, still nothing on the output. We will finally roll back to the prev...

Hi, I'm trying to develop an ISR handler for UART communication (RX only). I can't use queues or FreeRTOS tasks so the example provided in the ESP IDF won't do the trick (although I have tested it and it works well). I also have seen here on this forum a lot of topics and messages discussing this co...

Hi, My company works on several ESP32 based projects and we noticed an issue when using the ESP IDF scripts/tools to flash and reset the development kits. What is happening is that from time to time the device will not be reset when using a flash command and we cannot identify what could cause such ...

This seems to be an issue on IDF v4.2.2. It works without issue on the github master branch.

Hello, I have an issue with the simultaneous usage of ADC1 and WiFi. The documentation states that ADC2 read will fail when using WiFi. However there doesn't seem to have anything wrong using ADC1. The issue I face is the same every time, when reading an ADC value, the WiFi will be disconnected (rea...

Hi, In my case fast scan example gives the same result (~1 s to be connected to an AP) but 4 more to get an IP adress. As a I see in your logs, acquiring an IP is much faster than that, is there any way we can cut that time? (Maybe not possible since it is the DHCP client and must depends on the AP?...

Hello, I'm trying to find a way to automatically join a previously joined Wi-Fi access point after a reboot. As far as I know this feature should do the trick: https://docs.espressif.com/projects/esp-idf/en/v4.2.1/esp32/api-guides/wifi.html#wi-fi-nvs-flash I used the ESP IDF station example to join ...

I was talking about the other project I work on (last trace in my first post).

chegewara wrote: BTW posix works pretty good with esp32; i am working on project where i have foreign code imported from linux, its working with just a few small changes

Good to know! Just by curiosity do you remember these changes?

Yes thanks that was it ! I had to raise the main task stack size to get it to run. Also my path was wrong, I replaced "/sdcard/hello.txt" by "hello.txt". I will continue to adapt the POSIX example to find out if that works but is there anyway that my original issue could be related to a memory issue...