Yesterday, with Victor and the help of Samuel, I tested the rate of the USB Bus between the STM32 of our TP card and a PC.
The beginning was difficult because I was tired and for something others can consider as easy I took me a lot of time. USB, serial over USB, Python -> all this things that i didn’t and needed to manage in order to succeed this test.
A small piece of code to make a read command in the USB’s test shell in ChibiOs
The sent command
And finally the answer
We precedly made the same test in the other direction.
The results are :
- 5 Mb/s from PC to STM32
- 4 Mb/s from STM32 to PC
We only need 1,3 Mb/s for ours applications so it will be perfect !