Hi. This time, I want to ask about how to and which file should be change for enable SPI on AGX. Thanks to @ShaneCCC , I understand how to download L4T source and build it. So I think my next step is set PINMUX configure kernel for SPI set device tree. first, let 3rd step off…I want to ask abo…

Thanks. Now, I can make cfg file and I success to flash with new PINMUX file. [with command : python pinmux-dts2cfg.py --pinmux addr_info.txt gpio_addr_info.txt por_val.txt --mandatory_pinmux_file mandatory_pinmux.txt tegra19x-jetson_agx_devkit-pinmux.dtsi tegra19x-jetson_agx_devkit-gpio-default.…

Have a check this topic. Spidev read failed on xavier devkit Should be JetPack_4.3_Linux_P2888/Linux_for_Tegra/bootloader/t186ref/BCT/tegra19x-mb1-pinmux-p2888-0000-a04-p2822-0000-b01.cfg The r32 release branch don’t need to modify the configure file. The default configure are enable the SPI a…

Thanks @ShaneCCC . Can you tell me what is difference between ‘tegra19x-mb1-pinmux-p2888-0000-a00-p2822-0000-a00.cfg’, ‘tegra19x-mb1-pinmux-p2888-0000-a04-p2822-0000-b01.cfg’ and ‘tegra19x-mb1-pinmux-p2888-0000-p2822-0000.cfg’? And also why should I change B01 instead of A00? (If there is document…

It’s board id and version. You should be able to find which one from the flash log.

@ShaneCCC . Hi. I have several question again. I’ve try to replace ‘tegra19x-mb1-pinmux-p2888-0000-a04-p2822-0000-b01.cfg’ to ’ tegra19x-jetson_agx_devkit-pinmux.dtsi’ from ’ [Jetson_AGX_Series_DevKit_Pinmux_Configuration_Template.xlsm] file. (I only replace contents of the file.) But When I open…

If you just modify few pins you can just override the pin in the /bootloader/t186/BCT/xxx.cfg

I’ve just change SPI1_CLK : output, Master, Header40 23pin SPI1_MISO: input, Master, Header40 21pin SPI1_MOSI: output, Master, Header40 19pin SPI1_CS0_N: output, Master, Header40 24pin SPI1_CS1_N: output, Master, Header40 26pin Above 5 pins. And Auto generated file contain like this. pinmux@…

OMG… Auto generated file format is .dtsi… and original file format is .cfg. how can I use(or convert or apply) dtsi to cfg? I’m really sorry that I don’t know about this well…

Have a check below to modify the tegra19x-mb1-pinmux-p2888-0000-a0*-p2822-0000-xxx.cfg [image] SPI1 not work on Xavier Jetson AGX Xavier I mean modify the SPI1 like SPI2. pinmux.0x0243d040 = 0x00000400; # spi1_sck_pz3: rsvd1, pull-down, tristate-enable, input-enable, lpd…

What?.. it means that files from [Jetson_AGX_Series_DevKit_Pinmux_Configuration_Template.xlsm] is useless?? I have to modify .cfg file my manual? If I’m right, can you tell me what is [Jetson_AGX_Series_DevKit_Pinmux_Configuration_Template.xlsm] file for?

SPI quastion again. About configure kernel. please help me

Robotics & Edge Computing Jetson Systems Jetson AGX Xavier

ShaneCCC June 11, 2020, 7:07am 11

Have a check below to modify the tegra19x-mb1-pinmux-p2888-0000-a0*-p2822-0000-xxx.cfg

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SPI quastion again. About configure kernel. please help me

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