Can microSD card be accessed in UIFlow or with MicroPython?

zhufu86

I can not find any instruction in the documentation regarding how to access the tf card with python.
Can anyone help me?

ajb2k3

Take a look at the micro python official forums, there is a discussion about it

Micropython.org

lukasmaximus

Not possible in uiflow yet. Micropython is easy
import os
os.mountsd()
os.listdir('/sd')

etc...

zhufu86

@lukasmaximus
thank you for your reply.
But when I tried to exec os.mountsd I got an error as below.

os.mountsd()
W (20141) sdspi_host: spi bus changed (1 -> 2)
E (20141) sdspi_host: spi bus 2 not available
E (20141) vfs_native: Failed to initialize SDcard (258).
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
OSError: [Errno 5] EIO

ajb2k3

@zhufu86 said in Can TF card be accessed in UIFlow or with MicroPython?:

@lukasmaximus
thank you for your reply.
But when I tried to exec os.mountsd I got an error as below.

os.mountsd()
W (20141) sdspi_host: spi bus changed (1 -> 2)
E (20141) sdspi_host: spi bus 2 not available
E (20141) vfs_native: Failed to initialize SDcard (258).
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
OSError: [Errno 5] EIO

Can you post all you code please

zhufu86

@ajb2k3

I just exec in REPL.

import os
os.mountsd()

nothing else....

I also tried os.SDMODE_4LINE, os.SDMODE_1LINE and os.SDMODE_SPI with os.sdconfig(...) before mountsd(), but none of them worked.

Forgot to say, I'm using M5Stack Fire.

ajb2k3

@zhufu86 said in Can TF card be accessed in UIFlow or with MicroPython?:

@ajb2k3

I just exec in REPL.

import os
os.mountsd()

nothing else....

I also tried os.SDMODE_4LINE, os.SDMODE_1LINE and os.SDMODE_SPI with os.sdconfig(...) before mountsd(), but none of them worked.

Forgot to say, I'm using M5Stack Fire.

You also need the machine, sdcard and dpi library imported. That’s why I recommend that you visit MicroPython.org

zhufu86

@ajb2k3

thank you.

I went to MicroPython.org but found nothing helpful.
Finally, I erased the firmware and burned the M5S with the UIFlow-v1.3.1-Beta firmware.

It worked, with the code below.

>>> import uos
>>> uos.sdconfig(uos.SDMODE_SPI,clk=18,mosi=23,miso=19,cs=4)
I (53596) gpio: GPIO[23]| InputEn: 0| OutputEn: 0| OpenDrain: 0| Pullup: 1| Pull             down: 0| Intr:0
I (53596) gpio: GPIO[19]| InputEn: 0| OutputEn: 0| OpenDrain: 0| Pullup: 1| Pull             down: 0| Intr:0
I (53604) gpio: GPIO[18]| InputEn: 0| OutputEn: 0| OpenDrain: 0| Pullup: 1| Pull             down: 0| Intr:0
>>> uos.mountsd()
W (65959) sdspi_host: spi bus changed (1 -> 2)
I (65959) gpio: GPIO[4]| InputEn: 0| OutputEn: 1| OpenDrain: 0| Pullup: 0| Pulld             own: 0| Intr:0
---------------------
 Mode: SPI
     Name: SU08G
     Type: SDHC/SDXC
    Speed: default speed (25 MHz)
SPI speed: 40 MHz
     Size: 7580 MB
      CSD: ver=1, sector_size=512, capacity=15523840 read_bl_len=9
      SCR: sd_spec=2, bus_width=5

>>>

zhufu86

Funny...

I re-burned back to UIFlow-v1.2.3, and it also worked.

>>> import uos
>>> uos.sdconfig(uos.SDMODE_SPI,clk=18,mosi=23,miso=19,cs=4)
>>> uos.mountsd()
W (104277) sdspi_host: spi bus changed (1 -> 2)
---------------------
 Mode: SPI
     Name: SU08G
     Type: SDHC/SDXC
    Speed: default speed (25 MHz)
SPI speed: 20 MHz
     Size: 7580 MB
      CSD: ver=1, sector_size=512, capacity=15523840 read_bl_len=9
      SCR: sd_spec=2, bus_width=5

>>>

zhufu86

Here I attach the webpages which helps me mostly.
Hope it can help other people.

https://github.com/loboris/MicroPython_ESP32_psRAM_LoBo/wiki/filesystems
https://forum.micropython.org/viewtopic.php?t=4551
https://loboris.eu/forum/showthread.php?tid=85

zhufu86

ok......

now even one simple uos.mountsd() also works...
good...

>>> import uos
>>> uos.mountsd()
W (497494) sdspi_host: spi bus changed (1 -> 2)
---------------------
 Mode: SPI
     Name: SU08G
     Type: SDHC/SDXC
    Speed: default speed (25 MHz)
SPI speed: 20 MHz
     Size: 7580 MB
      CSD: ver=1, sector_size=512, capacity=15523840 read_bl_len=9
      SCR: sd_spec=2, bus_width=5

hema41

Yes, microSD cards can be accessed in UIFlow or with MicroPython. They allow you to read and write data from/to the microSD card, enabling storage and retrieval of information on compatible devices.