ZEDBOARD UART-USB connection problem in linux while using matlab

hello i am new to zedboard and am trying to set up the hardware since the past few weeks so any help would be great. i am trying to connect the board to the development computer

TOOL VERSIONS:

matlab version-R2022b

os-Ubuntu 20.04.3 LTS

i have used HDL Coder Support Package for Xilinx Zynq Platform

I keep getting this error and i'm not sure how to resolve it, any and all help would be appreciated thank you

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attempts done:

1)i have tried to setup serial port using s=serialport('dev/ttyACM0',115200); fopen(s) then tried the hardware

2)i have given permissions for dev/ttyACM0 by chmod 666

3)i have used putty to communicate with the zynq board

Parents

0 flyingbean 9 months ago

Not many peoples here using Matlab to run FPGA and communicate UART via Matlab/FPGA. In the meanwhile you used Linux for Matlab toolchain, which making the pool of the similar designers as you even less. You might need to ask help at Mathwork. Here is a snapshot from Mathwork about a similar question as yours.

Looks like the buffer size of UART could be a stopper after the communication starting.
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0 Rohith_Gopakumar 9 months ago in reply to flyingbean

I am able to connect using putty to the zedboard, so the communication is possible. One of the explainations i found was that matlab only recognises ttyS*, which is a very small portion of the ones present in linux and from what i figured out mine used DEV/ttyACM0.

i tried creating a link to ttyS101 and then trying to set-up but it didn't work.

I have contacted the mathworks support but any help from here would be appreciated.
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0 dyessgg 9 months ago in reply to Rohith_Gopakumar

I'm not an expert so I don't know the exact way to do this, but maybe try creating a udev rule to name the serial port as you wish.

There might be a Device Tree entry that will tell the serial driver on the ZEDBoard to generate a /dev/ttyS name.

If all else fails, modify the particular serial driver to create a name you want.

Unless I am completely misunderstanding the issue.
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0 Rohith_Gopakumar 9 months ago in reply to dyessgg

I had use sudo ln -s /dev/ttyACM0 /dev/ttyS101 to create a symbolic link

i used this as reference so please do correct me if my understanding was wrong in any way.
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0 Rohith_Gopakumar 9 months ago in reply to dyessgg

I had use sudo ln -s /dev/ttyACM0 /dev/ttyS101 to create a symbolic link

i used this as reference so please do correct me if my understanding was wrong in any way.
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