Jetson Nano communicate with ADS1256 using SPI

[chenzhiyuan77]

Hello, everyone. Anybody knows how to use the library spidev in Jetson Nano? I wanna use my Nano to get data from a chip ADS1256. It got me stumped. I was driven crazy. If you know how to solve my problem, could you help me, please? Thanks in advance.

[kayccc]

Moving to Jetson Nano forum for resolution.

[ShaneCCC]

What exactly problem for you? Have a search the forum for the SPI topic may get some information.

Spidev of Jetson nano-emmc core board cannot be used

We used R32.4.2 version package to upgrade Jetson nano emmc core board. After booting, the /dev path has spidev0.0, spidev0.1, spidev1.0, spidev1.1, four device files. We developed program to open and ioctl the spidev0.0, however, there is no output signal through oscilloscope measurement. I wanna know why. Is there something else to config for nano emmc system parameters or device tree ?