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.
11 строки
278 Б
JSON
11 строки
278 Б
JSON
{
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"inherits": ["cortex-m0plus"],
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"build-tags": ["atsamd21g18a", "atsamd21g18", "atsamd21", "sam"],
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"serial": "usb",
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"linkerscript": "targets/atsamd21.ld",
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"extra-files": [
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"src/device/sam/atsamd21g18a.s"
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],
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"openocd-transport": "swd",
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"openocd-target": "at91samdXX"
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}
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