Mity CPU Platforms » MitySOM-AM57X

11/21/2023

JC 03:26 PM Software Development: RE: spidev loopback testing not working

Sandeep Sivadas wrote in message#6555:
> Hi Mike,
> ...
If there was no output seen on the CLK or D0 then it is very likely that the pinmux was not updated.
I added a troubleshooting section to the wiki page, to step you through prin... Jonathan Cormier

SS 12:57 PM Software Development: RE: spidev loopback testing not working

Hi Mike,
Output of the spidev_test obtained is
root@mitysom-am57x:~# ./spidev_test -D /dev/spidev4.0 -v
spi mode: 0x0
bits per word: 8
max speed: 500000 Hz (500 KHz)
TX | FF FF FF FF FF FF 40 00 00 00 00 95 FF FF FF FF FF FF F... Sandeep Sivadas

MW 11:22 AM Software Development: RE: spidev loopback testing not working

Hi Sandeep,
Are you trying to loop spidev4.0 to spidev4.1? Or are you looping back one of the two devices onto themselves (e.g., SPI4_D0 connected to SPI4_D1 on same SPI channel)?
The example you linked to does not perform a loopb... Michael Williamson

SS 06:16 AM Software Development: spidev loopback testing not working

Hi,
We tried to configure SPI4 in the devkit by following the guidelines in the below link "(https://support.criticallink.com/redmine/projects/mitysom_am57x/wiki/Linux_Application_Using_spidev)".
As per the link we changed mux_data.h... Sandeep Sivadas

10/26/2023

AK 10:57 AM Software Development: RE: Error in Cloning the branches of MitySOM

It was an issue with TI's git server which got solved now.. The above discussion can be ignored.. thank you Arun Krishnan

AK 07:52 AM Software Development: Error in Cloning the branches of MitySOM

Following the procedure in the link: https://support.criticallink.com/redmine/projects/mitysom_am57x/wiki/Linux_Kernel_Yocto_for_MitySOM-AM57X, I have used the docker images for cloning the MitySOM branches to the oe-layersetup folder in... Arun Krishnan