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.
21 строка
518 Б
JSON
21 строка
518 Б
JSON
{
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"inherits": ["xtensa"],
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"cpu": "esp32",
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"build-tags": ["esp32", "esp"],
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"scheduler": "tasks",
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"serial": "uart",
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"linker": "xtensa-esp32-elf-ld",
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"default-stack-size": 2048,
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"cflags": [
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"-mcpu=esp32"
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],
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"rtlib": "compiler-rt",
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"libc": "picolibc",
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"linkerscript": "targets/esp32.ld",
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"extra-files": [
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"src/device/esp/esp32.S",
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"src/internal/task/task_stack_esp32.S"
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],
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"binary-format": "esp32",
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"flash-command": "esptool.py --chip=esp32 --port {port} write_flash 0x1000 {bin} -ff 80m -fm dout"
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}
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