Orange pi zero 3 SPI cs pin

[adif]

I'm trying to configure the CS (Chip Select) pin on my Orange Pi Zero 3. I added overlays=spi-spidev to the /boot/armbianEnv.txt file, created my own dtbo file, and tried all possible methods suggested by ChatGPT. I've been struggling for two weeks with no success. I haven't been able to switch the CE1 pin to alt4 state; it only stays off, nothing else. Is it even possible to work with SPI on this board?

[SteeMan]

Moved to the correct forum (community support).  This is not a supported board.  Adjusted the tag to reflect the correct board.

[WDR_s]

Did you get it to work?

Edited December 22, 2024 by WDR_s

[adif]

CLK, MOSI, MISO is work, but CS not work.  In gpio readall : CLK1 - ALT4, MOSI1 - ALT4, MISO1-ALT4, but CE1 - OFF. How change mode CE1 to ALT4?  

[mantouboji]

yeah, SPI in Zero3 can't work, but works in Zero2W .

[mantouboji]

But maybe I found the mistake: 

 

In DT overlay of H616, some developer set spidev devices to compate with "rohm,dh2228fv", maybe he attached a DH2228FV DAC chip?  

 

change all of sun50i-h616-spi*  dts files to 

 

`compatible = "armbian,spi-dev"; `

[mantouboji]

It seems the CS  pin is not configured in the dts overlay . 

 

I tried to add them and failed.

[adif]

i'm change all of sun50i-h616-spi*  dts files to`compatible = "armbian,spi-dev" but nothing. CS is OFF! Maybe the reason is that it's called CE. In gpio readall CS is name CE.

[mantouboji]

I modified the sun50i-h616-spidev1_1 dts file , it seems work.  

sun50i-h616-spidev1_1.dtbo sun50i-h616-spidev1_1.dtso sun50i-h616-spi-spidev.dtbo sun50i-h616-spi-spidev.dtso

Edited December 24, 2024 by mantouboji
add screen capture

[adif]

It's working! Thank you so much, you've been a huge help. These challenges have really helped me understand device trees and hardware configuration. This forum is amazing!

 

Edited December 24, 2024 by adif

[robertoj]

👍🏽

 

This is a problem with a specific dts meant for the spidev driver, because I am using the spi1 bus with 2 chip selects everyday with my LCD, which doesn’t use the spidev driver (uses dedicated LCD-spi driver).

Do you have an older orange pi zero 3 Armbian image, and see if it works normally?

 

can you rebuild Armbian with ./compile.sh, choose Linux edge (latest) and see if it works normally?