Raspberry Pi Pico and SD Card module

[catietravers33]

Hi there,

I've been trying really hard to sort out this error with wiring and looking at other forums but just cannot work it out.

This is the error message I get when using sdcard.py: Traceback (most recent call last): File "", line 19, in File "sdcard.py", line 231, in readblocks OSError: [Errno 5] EIO

And this is the code I am calling it from: import machine import sdcard, uos import time

cs = machine.Pin(13, machine.Pin.OUT)

Intialize SPI peripheral (start with 1 MHz)

spi = machine.SPI(1, baudrate=1000000, polarity=0, phase=0, bits=8, firstbit=machine.SPI.MSB, sck=machine.Pin(14), mosi=machine.Pin(15), miso=machine.Pin(12)) sd = sdcard.SDCard(spi, cs) time.sleep_ms(500) vfs = uos.VfsFat(sd) uos.mount(vfs, "/sd") #uos.mount(sd, '/sd') time.sleep_ms(500) print(uos.listdir('/sd'))

If anyone could help that would be appreciated!

[BNNorman]

sdcard resets the SPI baudrate to 1320000 (default) so there's no point doing it in the SPI constructor.

If you want to change it do it here:-

sd = sdcard.SDCard(spi, cs,baudrate=<whatever you want>)

I have set it to 20,000,000 and can read my sandisk ultra sdcard. See my issue #990 posted today.

I never got 25,000,000 to work, but that may just be my sdcard hdw.