SPI_CLK is not working

HEICAO
HEICAO New Member Posts: 3 ✭
in UP 4000 Linux

OS is ubuntu 18.04，spi test program with libmraa，Using 24mhz logic analyzer. Can run spi_loopback.py successfully,In the STM32 chip communication test can not send and receive signals normally, after testing found that the UP4000 SPI Master does not generate the clock signal normally。

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  • Wilbert
    Wilbert New Member Posts: 159 ✭✭✭
    Answer ✓

    Hi Sir,

    We have identified this issue and are working internally to fix it.
    Please change Pin16 to output in the BIOS/HAT Configuration, and the SPI CLK will be normal.
    The BIOS will be updated in the future to fix this problem.

    Best Regards,
    Wilbert Lee.

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