Hello everyone, I'm working on an ESP32S2 and I must read an analog value from GPIO18. I am successful in reading a correct value from the pin; however, the voltage on the pin never fell below 0.5V (even with an external pulldown resistor), which prompted me to do some experiments. I started fiddlin...

I have made some experiments but found no way to avoid the RAM expense if the SPI chip isn't present.
Isn't it possible at all to only enable it if found?

PSRAM has some quirks that make it different from internal memory: e.g. it 'disappears' when the cache is disabled, which happens e.g. when flash is being written to and DMA'ing to and from it works a bit different. For that reason, a bunch of stuff needs to be put in IRAM where without PSRAM, it c...

Hello everyone, I have an ongoing project that targets ESP32S2 modules. Most of them are equipped with internal PSRAM, but some are not. I would like to publish a firmware update that leverages on PSRAM to add more functions. This update is targeted to all devices, but those who don't have PSRAM sho...

By trying out more closely other USB drives the only discernible difference I can find is in the `bInterval` field, which is 255 (-1, maybe missing data?) for the problematic drive but 1 for every other model I could get my hands on. Since the library itself crashes I'm at a loss for what else to tr...

Hello everyone, I'm relying on the usb_msc component to have an ESP32S3 module read files from an USB drive (FAT32 formatted). I'm working on ESP-IDF v5.1. For the most part everything works; however today I've stumbled upon a specific USB drive that crashes the internal usb_msc code directly when g...

Hello everyone, I'm trying to implement an OTA operation from a USB drive. The ESP32-S3 module I'm using reads the contents of the USB drive correctly (I tested it with other files) and detects the OTA binary when present. The OTA operation however fails with a cryptic message about an MPI timeout: ...

This is still relevant. Is it possible?

I too have stumbled upon this behaviour, though I didn't diagnose it in such detail. If an I2C device stops answering for a while the ESP32 module is not always able to it pick up again. I am trying the solution described here https://esp32.com/viewtopic.php?f=14&t=3152&p=14817 (i.e. reset the perip...

Indeed; now it works, thank you very much!