SPI communication method of nrf 52832 and SD card.

Question

Hello! 
 
 I am a beginner. 
 I am trying to communicate with the SD card with SPI using nrf 52832.(BLE Nano v2) 
 I am using fatfs of nRF5_SDK_15.0.0_a53641a. I am writing a program with keil. 
 I refer to sdcard.c to initialize the SD card, but I do not know how to use it and I not initialize it. 
 How do you describe it in the main program? 
 
 Thank you!

Jakub Rzeszutko · Accepted Answer

Hi, 
 Did you check an example provided in the SDK? 
 \sdk
rf5\examples\peripheral\fatfs

Jørgen Holmefjord · Answer

The FatFS example will put the SD card in SPI mode. The card is put in SPI mode by pulling the CS/CD pin low. Please read more in footnote 3 of chapter 3.7.1 in SD Association Part1 Physical Layer Simplified Specification Ver6.00 .

y001 · Answer

I was able to execure fatfs by changing CS from HIGH to LOW! 
 Thank you for your cooperation!

SPI communication method of nrf 52832 and SD card.

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