b67351babe
Previously, the machine.UART0 object had two meanings:
- it was the first UART on the chip
- it was the default output for println
These two meanings conflict, and resulted in workarounds like:
- Defining UART0 to refer to the USB-CDC interface (atsamd21,
atsamd51, nrf52840), even though that clearly isn't an UART.
- Defining NRF_UART0 to avoid a conflict with UART0 (which was
redefined as a USB-CDC interface).
- Defining aliases like UART0 = UART1, which refer to the same
hardware peripheral (stm32).
This commit changes this to use a new machine.Serial object for the
default serial port. It might refer to the first or second UART
depending on the board, or even to the USB-CDC interface. Also, UART0
now really refers to the first UART on the chip, no longer to a USB-CDC
interface.
The changes in the runtime package are all just search+replace. The
changes in the machine package are a mixture of search+replace and
manual modifications.
This commit does not affect binary size, in fact it doesn't affect the
resulting binary at all.
120 строки
2,4 КиБ
Go
120 строки
2,4 КиБ
Go
// +build p1am_100
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// This contains the pin mappings for the ProductivityOpen P1AM-100 board.
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//
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// For more information, see: https://facts-engineering.github.io/
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//
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package machine
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// used to reset into bootloader
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const RESET_MAGIC_VALUE = 0x07738135
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// Note: On the P1AM-100, pins D8, D9, D10, A3, and A4 are used for
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// communication with the base controller.
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// GPIO Pins
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const (
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D0 Pin = PA22 // PWM available
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D1 Pin = PA23 // PWM available
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D2 Pin = PA10 // PWM available
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D3 Pin = PA11 // PWM available
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D4 Pin = PB10 // PWM available
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D5 Pin = PB11 // PWM available
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D6 Pin = PA20 // PWM available
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D7 Pin = PA21 // PWM available
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D8 Pin = PA16 // PWM available
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D9 Pin = PA17
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D10 Pin = PA19 // PWM available
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D11 Pin = PA08
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D12 Pin = PA09
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D13 Pin = PB23
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D14 Pin = PB22
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// Remaining pins are shared with analog pins
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D15 Pin = PA02
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D16 Pin = PB02
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D17 Pin = PB03
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D18 Pin = PA04 // PWM available
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D19 Pin = PA05 // PWM available
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D20 Pin = PA06
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D21 Pin = PA07
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)
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// Analog pins
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const (
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A0 Pin = PA02 // ADC/AIN[0]
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A1 Pin = PB02 // ADC/AIN[10]
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A2 Pin = PB03 // ADC/AIN[11]
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A3 Pin = PA04 // ADC/AIN[4]
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A4 Pin = PA05 // ADC/AIN[5]
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A5 Pin = PA06 // ADC/AIN[6]
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A6 Pin = PA07 // ADC/AIN[7]
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)
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const (
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SWITCH Pin = PA28
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LED Pin = PB08
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ADC_BATTERY Pin = PB09 // ADC/AIN[3]
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)
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// P1AM Base Controller
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const (
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BASE_SLAVE_SELECT_PIN Pin = A3
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BASE_SLAVE_ACK_PIN Pin = A4
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BASE_ENABLE_PIN Pin = PB09
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)
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// USBCDC pins
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const (
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USBCDC_DM_PIN Pin = PA24
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USBCDC_DP_PIN Pin = PA25
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USBCDC_HOST_ENABLE_PIN Pin = PA18
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)
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// UART1 pins
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const (
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UART_RX_PIN Pin = PB23 // RX: SERCOM5/PAD[3]
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UART_TX_PIN Pin = PB22 // TX: SERCOM5/PAD[2]
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)
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// I2C pins
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const (
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SDA_PIN Pin = PA08 // SDA: SERCOM0/PAD[0]
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SCL_PIN Pin = PA09 // SCL: SERCOM0/PAD[1]
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)
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// SPI pins
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const (
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SPI0_SCK_PIN Pin = D9 // SCK: SERCOM1/PAD[1]
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SPI0_SDO_PIN Pin = D8 // SDO: SERCOM1/PAD[0]
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SPI0_SDI_PIN Pin = D10 // SDI: SERCOM1/PAD[3]
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)
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// SD card pins
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const (
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SDCARD_SDI_PIN Pin = PA15 // SDI: SERCOM2/PAD[3]
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SDCARD_SDO_PIN Pin = PA12 // SDO: SERCOM2/PAD[0]
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SDCARD_SCK_PIN Pin = PA13 // SCK: SERCOM2/PAD[1]
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SDCARD_SS_PIN Pin = PA14 // SS: as GPIO
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SDCARD_CD_PIN Pin = PA27
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)
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// I2S pins
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const (
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I2S_SCK_PIN Pin = D2
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I2S_SD_PIN Pin = A6
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I2S_WS_PIN = D3
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)
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// USB CDC identifiers
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const (
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usb_STRING_PRODUCT = "P1AM-100"
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usb_STRING_MANUFACTURER = "Facts Engineering"
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)
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var (
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usb_VID uint16 = 0x1354
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usb_PID uint16 = 0x4000
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)
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