Write/Read Data(SD Card or internal) into the CoreS3 with Uiflow 2.0
Alejandro_Baup last edited by
Hi, i'm new in m5stack in general and i need to save the parameters changed by the user in the UI, to the internal or SD Card storage to read them later in a following start of the device. I see that this can be done in Uiflow 1 but in uiflow 2.0 i don't see the SD Card blocks to accomplish this. Any help with this would be gracefull
ajb2k3 last edited by
@alejandro_baup I have been asking for a few weeks but there looks to be an issue with sdxards at present
felmue last edited by
Here is an explanation as to why it may take some time to fix: M5CoreS3 uses the SPI bus in a special way to control the LCD: MISO (normally an input) is reconfigured to be an output and is used as DC line (instead of a dedicated GPIO for DC). Unfortunately to access the SD card (which shares the SPI bus with the LCD) MISO needs to be an input.
In case you might be interested. I found a way to do this switching back and forth between input and output for Arduino.