Hi,
I am using L4T 36.4.4. Trying to access the spi0 as spi-slave. I followed below steps in orin nx. But I could not access the spi as slave.
Dear forum,
I would like to configure the following pins of Jetson Orin NX to use its SPI1:
[Jetson_Orin_NX_and_Orin_Nano_series_Pinmux_Config_SPI]
For the Customer Usage column, I hesitated between SPIx_SCK/MISO/MOSI/CS0/CS1 and **unused_**SPIx_SCK/MISO/MOSI/CS0/CSI1. Also, I don’t know exactly how to select for the other columns such as Pin Direction, Req. Initial State, Wake Pin, Initiator Target Mode, 3V3 Tolerance Enable . Please advice!
Also, is there any difference for SPI master …
Hi there,
I am trying to use SPI1 in slave mode, but am having issues that other similar forum posts have not helped me resolve.
Steps I took to enable SPI1 as a slave are as follows:
Modify the device tree to reference the slave driver. The full entry in my device tree looks like this:
spi@3210000 {
compatible = "nvidia,tegra186-spi-slave";
reg = <0x00 0x3210000 0x00 0x10000>;
interrupts = <0x00 0x24 0x04>;
#address-cells = <0x01>;
#size-cells = <0x00>;
iommus = <0x06 0x04>;
dma-coh…
How to access?> Please share any guide or suggestions to access the spi0 as slave. I am using other 3.3v spi pins from microcontroller.
Hi kamalesh1,
Are you using the devkit or custom board for Orin NX?
Do you want to configure Orin NX as SPI slave on SPI0?spi@3210000 and you should get slave related information in dmesg.
Hi Kevin,
I am using custom board only.
Yes I made as slave. I got slave message as well. But It did not receive any messages from SPI master. Here I used SPI master as some microcontroller board which is 3.3v.
How to debug this?
How did you verify that the messages are not received?
Maybe you can refer to https://elinux.org/Jetson/L4T/peripheral/#Slave_Mode for the steps to configure one SPI as Master and another as Slave to verify.