shuvra1,
The files you provided in the previous post is EXACTLY the same as the ones you provided in the first post of this thread.
The Potentiostat.zip is NOT the original Olav Bjerke project. It has been altered.
If I can obtain the original project, I might be able to glean new information that might help you.
The main issue starts with the fact that you changed the VID and PID from the original settings to the settings used for the USB UART.
Based on this pic:
you are stating the original VID and PID are 0x04B5 and 0x0081 respectively.
All the parameters listed in the "Device Descriptors" are important to the USB communications used by the Python scripts.
I must note that I have limited experience in USB configuration. It would be best for someone else with more experience to weigh in on this issue.
Once a USB slave device is powered up on the USB bus, the PC looks for a '.inf' file where the VID and PID match. In this case, I changed the VID to 0x4B5 and the PID to 0x0081.
You will notice in a Device Manager snip, that the device "Potentiostat" shows up but the icon symbol on top of it (
Reading the event for this device it indicates the read VID and PID but the Driver Name: equals null. (It could not identify the driver to use.)
Since it couldn't find the .inf file that matches the VID and PID, it couldn't determine which .sys driver file to load. (Sometimes a special .dll file is also used.)
This is why the original Olav Bjerke project files may be necessary. Beside setting the proper USB configuration data in the "Device Descriptor" the support files (.inf, .sys and possibly .dll) may be necessary to continue to move forward.
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Continuing target program
The target program has stopped at: file: main.c line: 88 function: main address: 0x0000015A
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