2020-08-31 12:40 AM
I am testing the above setup using an transcend micro sd card adapter with 16GB sd card.I have no response from the sd card , i have used 32MHz clock with a spi baud rate 8MBits/s.i have used drivers from STM32Cube_FW_L0_V1.11.2\Drivers\BSP\Adafruit_Shield\stm32_adafruit_sd.c.I am not able to even mount the sd card .let me know what could be the problem is their any limitations ,thanks in advance.
2020-09-02 12:52 AM
what is your card sector size?
Did you format the card using PC? FAT32? EXFAT?
for test, first of all do a card format using fatfs. Also lower the SPI clock to 500 KHz or below. make sure that card has a steady power supply and try again.
2020-09-10 03:38 AM
hi thanks for the response i was able to read and write into sd card .