Hi, I am unable to find the base address for SPI in my Xavier NX. I understand NX supports two SPIs but in the Device Tree there are quite many spi@.
Also, under the spi@ nodes, what do spi@0 and spi@1 mean? Are they the Chip Selects?
Your question will get more visibility if posted in the Jetson Xavier NX forum. I will move it there for you.
Suppose below can explain it.
serial0 = "/serial@3100000";
serial1 = "/serial@3110000";
serial2 = "/serial@c280000";
serial3 = "/serial@3130000";
serial4 = "/serial@3140000";
serial5 = "/serial@3150000";
serial6 = "/serial@c290000";
serial7 = "/serial@3170000";
sdhci3 = "/sdhci@3460000";
sdhci2 = "/sdhci@3440000";
sdhci0 = "/sdhci@3400000";
spi0 = "/spi@3210000";
spi1 = "/spi@c260000";
spi2 = "/spi@3230000";
spi6 = "/spi@3270000";
spi7 = "/spi@3300000";
Can you please explain this a little? I am new in this field…
Below is SPI bus 0/12/6/7 and NX 40 pin head is the spi@0 and spi@2
Can you please answer the second part of the original question as well?
“Also, under the spi@ nodes, what do spi@0 and spi@1 mean? Are they the Chip Selects?”
Yes, the spi@0/spi@1 under the spi@323xxx is the device of each chip select.
I am trying to connect a codec board over SPI. But here they speak about I2C only. So can you please help provide me with a similar documentation for SPI?
I would suggest consult with the vendor to get the driver would be greate.
For the SPI here we provide the jetson-io to configure the SPI function only.
This topic was automatically closed 14 days after the last reply. New replies are no longer allowed.