ok, I solved the sending part:
[image: spi_capture_ok.png]
I added an overlay that disables `eqep0`:
/dts-v1/;
/plugin/;
/ {
model = "TI AM335x BeagleBone Blue";
compatible = "ti,am335x-bone-blue", "ti,am33xx";
fragment@0 {
target = <&eqep0>;
__overlay__ {
status = "disabled";
};
};
};
And how the pins are correctly muxed:
P9.42a 89 C18 fast 2 spi 1 cs 1 ocp
/C18_pinmux (pinmux_C18_spi_pin)
P9.31 / hdmi audio clk 100 A13 fast rx up 3 spi 1 clk ocp
/P9_31_pinmux (pinmux_P9_31_spi_sclk_pin)
P9.29 / hdmi audio fs 101 B13 fast rx down 3 spi 1 data 0 ocp
/P9_29_pinmux (pinmux_P9_29_spi_pin)
P9.30 102 D12 fast rx down 3 spi 1 data 1 ocp
/P9_30_pinmux (pinmux_P9_30_spi_pin)
--
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