user32

@JColvin thanks! being able to get this working would be a big relief... So is this I2C interface then accessible from user-space in linux for use with i2cdetect and i2cset/get commands? Vivado is really impressive in the sense that I find it often automating way more than I expected- do I need to interface with the i2c bus through calls into AXI in a linux app or does the device tree that vivado generates set linux up to be able to talk directly to it? thanks for the screenshot as well, it is very helpful!

@JColvin thanks for the confirmation, and regarding the I2C controller in vivado I was referring to this in trying to place the i2c master:

it looks like you can't use the I2C in the PS on the cora board because they didnt map any MIO for it and in order to use the i2c maste rin the PL you have to pay for it? sucks that I bought i2c hardware I cant use...

Are the SDA and SCL pins on the cora board PL only? The xdc has them as being P15 and P16 on the SoC - how do I find out if these correspond with the MIO numbers in vivado? Where can I even find a pinout showing what pins are MIO pins? I have i2cdetect running in linux on the board but the lines never go low and cant find anything on the bus... thanks

(apologies ahead of time, I am very frustrated) So I have made zero progress in several weeks worth of attempts to get anything other than someone else's sd-card (image files) to boot on the Cora. To have thought I might be able to start with something like this: https://github.com/Digilent/Petalinux-Cora-Z7-07S And make changes in the PL or PS and rebuild has turned out to be as discouraging as it is laughable. I'm either failing to follow steps somehow or the project files seem to produce a number of errors in the petalinux 2023.2 env, some of which I was able to fix or hack my way around, but in the end it just wouldn't boot and I couldn't get any serial output to start debugging with. I tried running petalinux 2017 (version of the project) in a vm and spent days trying to resolve errors that mostly come from trying to run software from 2017 in recent Ubuntu vm where most of the dependencies are so old... In searching for solutions it's a choose-you-own-adventure of has anyone had success in deploying this project recently on a Cora board? Are there any other resources that might help me make use of this board? Or is this board old now? What board do I need to buy to be able to use the latest releases of the dev environments (vivado/petalinux) and learn how to make things happen? thanks for reading