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Difference between MPS3 board revisions

A small number of improvements were made in the design of the MPS3 board between the earlier Rev B (HBI-0309B)  boards and the RevC (HBI-0309C) boards that have been available since 2018.

Below is a list of the changes:

CMSIS-DAP / DAPLink debug over USB reset change

  • Debug reset on Rev B drives nTRST
  • Debug reset of Rev C drivers nSRST signal

 CMSIS-DAP / DAPLink debug over USB serial

  • Rev C boards implement DAPLink/CMSIS-DAP CDC virtual com port, routable to FPGA UART

 Arduino Shield

  • Revision upgrade made changes to improve the performance of the Arduino Shield interfaces on RevC boards