ESP32, IDF-4.3, MMC 4b card.
After switch SD card from one device to another, im found, what ESP cant connect with:
Code: Select all
[0;31mE (60) sdmmc_sd: sdmmc_check_scr: send_scr returned 0xffffffff [0m
So what the problem? Im really dont want to get unconnected card next ESP launch on some another device.
What steps i can do, to determine what is going wrong?
Im trying to set MMC freq at 400kHz, and nothing has changed.