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boards/feather-m0: update doc about flash and stdio

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Alexandre Abadie 2019-10-01 12:09:04 +02:00
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boards/feather-m0/doc.txt
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@ -41,18 +41,22 @@ printf("Bat: %dV\n", vbat);
### Flash the board
1. Put the board in bootloader mode by double tapping the reset button.<br/>
When the board is in bootloader mode, the user led (red) oscillates smoothly.
2. Use `BOARD=feather-m0` with the `make` command.<br/>
Example with `hello-world` application:
Use `BOARD=feather-m0` with the `make` command.<br/>
Example with `hello-world` application:
```
make BOARD=feather-m0 -C examples/hello-world flash
```
@note If the application crashes, automatic reflashing via USB, as explained
above won't be possible. In this case, the board must be set in
bootloader mode by double tapping the reset button before running the
flash command.
### Accessing STDIO via UART
To access the STDIO of RIOT, a FTDI to USB converted needs to be plugged to
the RX/TX pins on the board.
STDIO of RIOT is directly available over the USB port.
The `TERM_DELAY` environment variable can be used to add a delay (in second)
before opening the serial terminal. The default value is 2s which should be
enough in most of the situation.
*/