ESP32-S3 Octal (8-bit) SPI (master) transmission does not work

[faptastic]

Please delete thread. Figured out issue.

[MicroController]

Code: test.c Select all

    spi_bus_config_t buscfg = {

        .data0_io_num = -1,

        .data1_io_num = -1,

        .sclk_io_num = -1, // TEMP

        .data2_io_num = -1,

        .data3_io_num = 5, // this and data2, data1, data0 and sclk work.

        .data4_io_num = 1, // this doesn't work (nor does data5+)

        .data5_io_num = -1,

        .data6_io_num = -1,

        .data7_io_num = -1,

        .max_transfer_sz = 512, // ESP32 S3 max size is 64Kbytes

        .flags = 0,

        .intr_flags = 0

    };

What are the actual GPIO pin numbers you're trying to use?

[faptastic]

Edit: Figured out issue.

I was setting the SPICOMMON_BUSFLAG_OCTAL flag to the 'devcfg' not 'buscfg'. Facepalm