Lolin D32 PRO and SD Card Errors

[jamonda]

Hi, friends.
A long time ago I used to mount SD Cards with my Lolin D32 PRO using this code and the sdcard.py driver:

Code: Select all

import machine, sdcard, os
sd = sdcard.SDCard(machine.SoftSPI(baudrate=100000, polarity=1, phase=0, sck=machine.Pin(18), mosi=machine.Pin(23), miso=machine.Pin(19)), machine.Pin(4))
os.mount(sd, '/sd')

Now with Micropython v1.16, when I try this code I get this error message:

Traceback (most recent call last):
File "<stdin>", line 1, in <module>
OSError: [Errno 19] ENODEV

After reading the v.1.16 docs, I tryed machine.SDCard() with this code:

Code: Select all

import machine
sd=machine.SDCard(sck=18, cs=4, miso=19, mosi=23)
import os
os.mount(sd, '/sd')

It didn't work either, giving me this error message:

Traceback (most recent call last):
File "<stdin>", line 1, in <module>
OSError: 16

The SD Card is good, as I can mount, read and write with my Pyboards.

What am I doing wrong?

Thanks in advance!

[Mike Teachman]

I use the same dev board. Here is what works for me in the v1.16 release:

Code: Select all

    
import os
from machine import Pin    
from machine import SDCard
sd = SDCard(slot=3, sck=Pin(18), mosi=Pin(23), miso=Pin(19), cs=Pin(4))
os.mount(sd, "/sd")

[jamonda]

It worked here, Mike.
Thank you so much!