STM32F103ZE: UART5 preventing SDIO to work properly?

darkore2 · ‎2011-02-04

Posted on February 04, 2011 at 16:58

darkore2 · ‎2011-05-17

Posted on May 17, 2011 at 14:24

Tesla DeLorean · ‎2011-05-17

Posted on May 17, 2011 at 14:24

Given they can share the same pins, if both units are enabled they are going to clash. In such circumstances remapping the unit(s) is typically a method to fix pin muxing issues.

PC.12 UART5_TX/SDIO_CK

PD.02 TIM3_ETR/UART5_RX/SDIO_CMD

Not sure how you think this isn't a pin issue, the ''AF'' setting will be any of the above connections.

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