[riot-notifications] [RIOT-OS/RIOT] cpu/esp32: GPIO macro cleanup in periph_cpu.h (#10662)

Gunar Schorcht notifications at github.com
Wed Jan 9 18:11:36 CET 2019

> Regarding the testing procedure, i tried make -C tests/periph_gpio BOARD=esp32-wroom-32 flash test but it doesn't work because the test tries to reset the board while a terminal is already opened. This seems to cause problem with esptool.py.

@MrKevinWeiss also observed this problem.

> There is a similar issue with arduino and firefly boards because their flasher uses the UART to flash/reset the boards, so you can't keep a terminal opened while resetting/flashing them.

This might be the case since ESP32 boards are using UART logic for hardware reset. At the moment, I don't have an idea how to figure out whether this is really the problem.

> Is there any other way to test this PR using the tests/periph_gpio application ?

Yes, just press the `RST` (on some boards also called `EN`) button once you see 
Welcome to pyterm!
Type '/exit' to exit.
in terminal window.

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