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//go:build nucleof722ze
// +build nucleof722ze
package machine
import (
"device/stm32"
"runtime/interrupt"
)
const (
LED = LED_BUILTIN
LED_BUILTIN = LED_GREEN
LED_GREEN = PB0
LED_BLUE = PB7
LED_RED = PB14
)
const (
BUTTON = BUTTON_USER
BUTTON_USER = PC13
)
// UART pins
const (
// PD8 and PD9 are connected to the ST-Link Virtual Com Port (VCP)
UART_TX_PIN = PD8
UART_RX_PIN = PD9
UART_ALT_FN = 7 // GPIO_AF7_UART3
)
var (
// USART3 is the hardware serial port connected to the onboard ST-LINK
// debugger to be exposed as virtual COM port over USB on Nucleo boards.
UART1 = &_UART1
_UART1 = UART{
Buffer: NewRingBuffer(),
Bus: stm32.USART3,
TxAltFuncSelector: UART_ALT_FN,
RxAltFuncSelector: UART_ALT_FN,
}
DefaultUART = UART1
)
func init() {
UART1.Interrupt = interrupt.New(stm32.IRQ_USART3, _UART1.handleInterrupt)
}
// SPI pins
const (
SPI0_SCK_PIN = PA5
SPI0_SDI_PIN = PA6
SPI0_SDO_PIN = PA7
)
// I2C pins
const (
I2C0_SCL_PIN = PB8
I2C0_SDA_PIN = PB9
)
var (
// I2C1 is documented, alias to I2C0 as well
I2C1 = &I2C{
Bus: stm32.I2C1,
AltFuncSelector: 4,
}
I2C0 = I2C1
)
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