TM4C129XNCZAD: Maximum data transfer capacity in the CDC mode

ray yang

Part Number: TM4C129XNCZAD

Hi ,

In the USB CDC mode, how many bytes of data can be transferred per 1ms,

Thank you.

Many thanks,

Ray Yang

0 ray yang over 3 years ago

only for from TM4C to PC, without considering the MCU and peripheral communication.

+1 Ralph Jacobi over 3 years ago in reply to ray yang

Hello Ray,

It depends on the implementation, what end points are used, how fast both sides work to process and send data etc.

I am going to assume USB Full Speed is being used here. For USB Full Speed, the theoretical max speed is 8Mbps (Mbsps is for bits per second).

But in practical applications we see more like 5-6Mbps being the max speed.

Best Regards,

Ralph Jacobi

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