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SD card initializes fail with error_timeout

Posted: Fri Jun 07, 2024 7:24 am
by gyui21g
I use this example below provided by ESP official.
esp-idf-project\sdspi\main\sd_card_example_main.c
I want to use Micro_SD card with SPI communication.

The problem is why I got failed at cmd ACMD41? The SD card always return busy(0x01 response) when the initialization process proceed to command ACMD41.

I've tried to replace with a different SD card, though I got same result.

Dose anyone with similar experience tell me how to fix this problem? I have no idea on it.