Pirate Audio - Audio disabling when setting up screen

Support
1

I’m working on a project to play back audio and display cover art on the Pirate Audio HAT (Headphones) with a Pi Zero W. Playback is handled by pygame.mixer.music and display using your example code for the ST7789.

If I run the function below, audio is completely disabled. Not just for the code, but system-wide. Only a reboot fixes it, although no errors are displayed.

Is there something in this setup causing a clash with the DAC? Any help gratefully received.

disp = None
def init():
    global disp
    disp = ST7789.ST7789(
        height=240,
        rotation=90,
        port=0,
        cs=ST7789.BG_SPI_CS_FRONT,  # BG_SPI_CS_BACK or BG_SPI_CS_FRONT
        dc=9,
        backlight=19,               # 18 for back BG slot, 19 for front BG slot.
        spi_speed_hz=80 * 1000 * 1000,
        offset_left=0,
        offset_top=0
    )
    disp.begin()

PJ

2

Never mind, found it. Change…

backlight=19

to

backlight=13

…and all is groovy.