Posted on September 24, 2015 at 01:10
Hi,
I want to connect a microSD card to my STM32L151CBU6 MCU and read/write data to this uSD card. I have made the schematics, but I am unsure if I have connected the uSD card holder correctly to the MCU (see attachment). I think
I want to run the uSD card in SPI mode since the MCU don't have a SDIO interface.
Wire run list to the MCU:
SPI1_MISO <-> pin 16/PA6/SPI1_MISO
SPI1_CS <-> pin 14/PA4
SPI1_SCK <-> pin 15/PA5/SPI1_SCK
SPI1_MOSI <-> pin 17/PA7/SPI1_MOSI
The NMOS is added to make me able to reset/disconnect the power to the uSD card.
Can anyone verify the MCU uSD card connection please?
