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by tchen61
Sun Apr 26, 2020 11:15 pm
Forum: General Discussion
Topic: SDIO signal affecting ESP32 boot
Replies: 0
Views: 1970

SDIO signal affecting ESP32 boot

i am trying to test SDIO slave driver. However, i found that if the signals are connected to a SD card slot (CLK, CS, CMD, DATx), ESP32 (i am using ESP32-pico) seems to boot in a strange way (ie not launching my main program). however, once i disconnect those signals, then it boot up normally. It se...