stm32l431rct6: SD detect pin question

[Jacob3104]

Sorry, are there has a pin call or used for SD_detect in Stm32l431rct6? I can not find in STM32L431xx Datasheet - production data. These has no mention.I do not know which pin(SD-Detect)should i choose for GPIO_Input of the FATS.

[mƎALLEm]

Hello,

You can use any GPIO pin for that. It’s not a part of the SDIO peripheral.

You can refer to any SD BSP driver like this one from L476 Eval board: 

https://github.com/STMicroelectronics/stm32l476g-eval-bsp/blob/31280bc4a9d038f9981b8fe4c2824582efc163fe/stm32l476g_eval_sd.h

You can watch this video on Youtube / especially @5:58

Hope it helps.