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.
30 строки
685 Б
Go
30 строки
685 Б
Go
// +build x9pro
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package machine
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// https://hackaday.io/project/144350-hacking-wearables-for-mental-health-and-more/details
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const (
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LED Pin = 4 // HR LED pin
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UART_TX_PIN Pin = NoPin
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UART_RX_PIN Pin = NoPin
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SCL_PIN Pin = NoPin
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SDA_PIN Pin = NoPin
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SPI0_SCK_PIN Pin = 18
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SPI0_SDI_PIN Pin = 19
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SPI0_SDO_PIN Pin = 20
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)
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// LCD pins.
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const (
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OLED_CS Pin = 15 // chip select
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OLED_RES Pin = 14 // reset pin
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OLED_DC Pin = 13 // data/command
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OLED_SCK Pin = 12 // SPI clock
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OLED_SDO Pin = 11 // SPI SDO (chip-out, peripheral-in)
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OLED_LED_POW Pin = 16
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OLED_IC_POW Pin = 17
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)
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const HasLowFrequencyCrystal = true
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var DefaultUART = UART0
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