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ST-Link also serves as USB<->USART when not debugging

Question asked by chanov.andrey on Jun 18, 2012
Latest reply on Mar 5, 2014 by jaekel.torsten
Hi to all STM guys here. Thank for all the great eval boards you do.

We just had a sparks-generating discussion on a forum from where camse an idea that we miss an interaction with PC capability on the discovery boards. I just had a look at F4 board and confirmed that there's USART2 unoccupied on STM32F103C8T6 chip. That means that it is feasible to hack the board a bit to connect an USART on the main chip with USART2 on the debugger chip. The debugger chip would serve than as both ST-Link (for debugging) and as VCP for interaction with a terminal on PC. That would greatly help to have this possibility outside of IDE.

To do so what we need is either sources of firmware of the debugger (so the community could modify it to implement the needed functionality) or the firmware with amplemented functionality from ST so we could flash that ourselves.

Please let us know if that is possible (no hardware/legal restrictions from STM side) and we can expect STM to release a solution for this problem any soon.

Many thanks in advance.
P.S. This would really kick *** to Arduino :-)

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