56 строки
1 КиБ
Go
56 строки
1 КиБ
Go
// +build nucleol432kc
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package machine
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import (
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"device/stm32"
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"runtime/interrupt"
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)
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const (
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LED = LED_BUILTIN
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LED_BUILTIN = LED_GREEN
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LED_GREEN = PB3
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)
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// UART pins
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const (
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// PA2 and PA15 are connected to the ST-Link Virtual Com Port (VCP)
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UART_TX_PIN = PA2
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UART_RX_PIN = PA15
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)
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// I2C pins
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const (
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// With default solder bridge settings:
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// PB6 / Arduino D5 / CN3 Pin 8 is SCL
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// PB7 / Arduino D4 / CN3 Pin 7 is SDA
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I2C0_SCL_PIN = PB6
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I2C0_SDA_PIN = PB7
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)
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var (
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// USART2 is the hardware serial port connected to the onboard ST-LINK
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// debugger to be exposed as virtual COM port over USB on Nucleo boards.
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// Both UART0 and UART1 refer to USART2.
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UART0 = UART{
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Buffer: NewRingBuffer(),
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Bus: stm32.USART2,
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TxAltFuncSelector: 7,
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RxAltFuncSelector: 3,
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}
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UART1 = &UART0
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)
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var (
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// I2C1 is documented, alias to I2C0 as well
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I2C1 = &I2C{
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Bus: stm32.I2C1,
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AltFuncSelector: 4,
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}
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I2C0 = I2C1
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)
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func init() {
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UART0.Interrupt = interrupt.New(stm32.IRQ_USART2, UART0.handleInterrupt)
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}
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