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//go:build bluepill
// +build bluepill
package machine
import (
"device/stm32"
"runtime/interrupt"
)
const (
LED = PC13
)
const (
// This board does not have a user button, so
// use first GPIO pin by default
BUTTON = PA0
)
// Analog Pins
const (
ADC0 = PA0
ADC1 = PA1
ADC2 = PA2
ADC3 = PA3
ADC4 = PA4
ADC5 = PA5
ADC6 = PA6
ADC7 = PA7
ADC8 = PB0
ADC9 = PB1
)
var DefaultUART = UART1
// UART pins
const (
UART_TX_PIN = PA9
UART_RX_PIN = PA10
UART_ALT_TX_PIN = PB6
UART_ALT_RX_PIN = PB7
)
var (
// USART1 is the first hardware serial port on the STM32.
UART1 = &_UART1
_UART1 = UART{
Buffer: NewRingBuffer(),
Bus: stm32.USART1,
}
UART2 = &_UART2
_UART2 = UART{
Buffer: NewRingBuffer(),
Bus: stm32.USART2,
}
)
func init() {
UART1.Interrupt = interrupt.New(stm32.IRQ_USART1, _UART1.handleInterrupt)
UART2.Interrupt = interrupt.New(stm32.IRQ_USART2, _UART2.handleInterrupt)
}
// SPI pins
const (
SPI0_SCK_PIN = PA5
SPI0_SDO_PIN = PA7
SPI0_SDI_PIN = PA6
)
// I2C pins
const (
I2C0_SDA_PIN = PB7
I2C0_SCL_PIN = PB6
)
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