96e863f0f3
This can be very useful for some purposes:
* It makes it possible to disable the UART in cases where it is not
needed or needs to be disabled to conserve power.
* It makes it possible to disable the serial output to reduce code
size, which may be important for some chips. Sometimes, a few kB can
be saved this way.
* It makes it possible to override the default, for example you might
want to use an actual UART to debug the USB-CDC implementation.
It also lowers the dependency on having machine.Serial defined, which is
often not defined when targeting a chip. Eventually, we might want to
make it possible to write `-target=nrf52` or `-target=atmega328p` for
example to target the chip itself with no board specific assumptions.
The defaults don't change. I checked this by running `make smoketest`
before and after and comparing the results.
10 строки
290 Б
JSON
10 строки
290 Б
JSON
{
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"inherits": ["atsamd51g19a"],
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"build-tags": ["itsybitsy_m4"],
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"serial": "usb",
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"flash-1200-bps-reset": "true",
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"flash-method": "msd",
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"serial-port": ["acm:239a:802b", "acm:239a:002b"],
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"msd-volume-name": "ITSYM4BOOT",
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"msd-firmware-name": "firmware.uf2"
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}
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