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RIOT/tests/sys/stdio_semihosting/README.md

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# Semihosting STDIO test
This test aims to test ARM semihosting based STDIO on RIOT. The test is manual,
starting a debugger on the CI for automated test is not supported.
## Usage
1. Flash the test on a board with an ARM-based MCU.
2. Use `make term RIOT_TERMINAL=semihosting` to start a debug session with
semihosting enabled.
3. Restart the microcontroller via the debug session.
The shell prompt should be available in the GDB session.