Can't display images from SD Card on cores3se

[artpi]

I have CoreS3SE and when i try do display images from sd card, the screen either stays blank or device crashes.

This will fail (device will crash or just stay black)

M5.Lcd.drawImage("/sd/background.jpg", 0, 0)

While this works:

def display_sd_image(sd_path, flash_temp="/flash/temp.jpg"):
    """
    Display an image from SD card by copying to flash first.
    Workaround for M5Stack SPI bus conflict.
    """
    # Read from SD into memory
    with open(sd_path, "rb") as f:
        image_data = f.read()
    
    # Write to flash
    with open(flash_temp, "wb") as f:
        f.write(image_data)
    
    # Free memory
    del image_data
    
    # Now display from flash (this works!)
    M5.Lcd.drawImage(flash_temp, 0, 0)


def setup():
    M5.begin()
    Widgets.setRotation(1)
    
    # Mount SD card (CoreS3 SE pins)
    sdcard.SDCard(slot=3, width=1, sck=36, miso=35, mosi=37, cs=4, freq=20000000)
    
    # Display image using the workaround
    display_sd_image("/sd/background.jpg")

I think this is SPI conflict for reading and displaying at the same time

I've described it here:

https://piszek.com/2025/12/12/images-from-sd-card-on-m5stack-cores3/

[lbuque]

@artpi Please try v2.3.9-hotfix.