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Gunar Schorcht fe21e82079 cpu/esp32: improve initialization of UART pins
Since PR #19100 it is possible to define:
- other pins for `UART_DEV(0)` than the default pins
- different `UART_DEV(0)` pins for the bootloader and RIOT
To allow correct reinitialization of the UART pins used by the bootloader as well as their usage for other purposes, the pin usage for the default UART0 pins and the UART pins used by the bootloader are reset to `_GPIO`. This is done in `uart_system_init` which has to be called earlier in the startup procedure.
2023-01-14 14:38:18 +01:00
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2021-12-10 18:54:07 +01:00
2023-01-09 00:51:27 +01:00