ESP-IDF SD Card example not working

[xvinny-zz]

Hi,

I tried to test the SD card example but it isn't working.
Follow my log:

�[0;32mI (189) boot: Loaded app from partition at offset 0x10000�[0m
�[0;32mI (189) boot: Disabling RNG early entropy source...�[0m
�[0;32mI (194) cpu_start: Pro cpu up.�[0m
�[0;32mI (197) cpu_start: Starting app cpu, entry point is 0x40080e44�[0m
�[0;32mI (0) cpu_start: App cpu up.�[0m
�[0;32mI (208) heap_init: Initializing. RAM available for dynamic allocation:�[0m
�[0;32mI (215) heap_init: At 3FFAE6E0 len 00001920 (6 KiB): DRAM�[0m
�[0;32mI (221) heap_init: At 3FFB69D8 len 00029628 (165 KiB): DRAM�[0m
�[0;32mI (227) heap_init: At 3FFE0440 len 00003BC0 (14 KiB): D/IRAM�[0m
�[0;32mI (233) heap_init: At 3FFE4350 len 0001BCB0 (111 KiB): D/IRAM�[0m
�[0;32mI (240) heap_init: At 400892FC len 00016D04 (91 KiB): IRAM�[0m
�[0;32mI (246) cpu_start: Pro cpu start user code�[0m
�[0;32mI (264) cpu_start: Starting scheduler on PRO CPU.�[0m
�[0;32mI (0) cpu_start: Starting scheduler on APP CPU.�[0m
�[0;32mI (266) example: Initializing SD card�[0m
�[0;32mI (266) example: Using SPI peripheral�[0m
�[0;32mI (266) gpio: GPIO[5]| InputEn: 0| OutputEn: 1| OpenDrain: 0| Pullup: 0| Pulldown: 0| Intr:0 �[0m
�[0;31mE (326) sdspi_host: data CRC failed, got=0x5be3 expected=0xfc40�[0m
�[0;32mI (326) sdspi_host: 00 10 80 00 00 00 00 00 35 79 fb 3f 00 a7 fb 3f �[0m
�[0;31mE (326) sdspi_host: sdspi_host_start_command: cmd=51 error=0x109�[0m
�[0;31mE (336) sdmmc_cmd: sdmmc_card_init: send_scr (2) returned 0x109�[0m
�[0;31mE (346) example: Failed to initialize the card (265). Make sure SD card lines have pull-up resistors in place.�[0m

The detail is.. the Arduino example works!!
What am I doing wrong?

Best regards,

Vinicius

[xvinny-zz]

I figured out. According to the issue #965 in github.com/espressif/esp-idf (espressif/esp-idf#965), you must add host.max_freq_khz = SDMMC_FREQ_PROBING; line to SDMMC host initialization.
I tried to pull this change to the example here but couldn't. Please do it as soon as possible to to prevent others from going through this same situation.