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Published 20 hours ago • verified publisher icon deltabeard

SD Card require pull-ups

Open deltabeard opened this issue 5 years ago • 0 comments

CMD and DATA lines D0-D3 of the slave SD Card should be pulled up by 50KOhm resistor even in 1-bit mode or SPI mode. The pullups of the slave cards should be connected even if they’re not connected to the host.

Adapted from: https://docs.espressif.com/projects/esp-idf/en/latest/api-reference/peripherals/sd_pullup_requirements.html

deltabeard avatar Jul 01 '19 11:07 deltabeard