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

[faptastic]

Please delete thread. Figured out issue.

[MicroController]

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1.  
2.     spi_bus_config_t buscfg = {
3.         .data0_io_num = -1,
4.         .data1_io_num = -1,
5.         .sclk_io_num = -1, // TEMP
6.         .data2_io_num = -1,
7.         .data3_io_num = 5, // this and data2, data1, data0 and sclk work.
8.         .data4_io_num = 1, // this doesn't work (nor does data5+)
9.         .data5_io_num = -1,
10.         .data6_io_num = -1,
11.         .data7_io_num = -1,
12.         .max_transfer_sz = 512, // ESP32 S3 max size is 64Kbytes
13.         .flags = 0,
14.         .intr_flags = 0
15.     };

GeSHi © Codebox Plus Extension

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