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//go:build lorae5
package machine
import (
"device/stm32"
"runtime/interrupt"
)
const (
// We assume a LED is connected on PB5
LED = PB5 // Default LED
// Set the POWER_EN3V3 pin to high to turn
// on the 3.3V power for all peripherals
POWER_EN3V3 = PA9
// Set the POWER_EN5V pin to high to turn
// on the 5V bus power for all peripherals
POWER_EN5V = PB10
)
// SubGhz (SPI3)
const (
SPI0_NSS_PIN = PA4
SPI0_SCK_PIN = PA5
SPI0_SDO_PIN = PA6
SPI0_SDI_PIN = PA7
)
// UARTS
const (
// MCU USART1
UART1_TX_PIN = PB6
UART1_RX_PIN = PB7
// MCU USART2
UART2_TX_PIN = PA2
UART2_RX_PIN = PA3
// DEFAULT USART
UART_TX_PIN = UART1_TX_PIN
UART_RX_PIN = UART1_RX_PIN
// I2C2 pins
I2C2_SCL_PIN = PB15
I2C2_SDA_PIN = PA15
I2C2_ALT_FUNC = 4
// I2C0 alias for I2C2
I2C0_SDA_PIN = I2C2_SDA_PIN
I2C0_SCL_PIN = I2C2_SCL_PIN
)
var (
// Console UART
UART0 = &_UART0
_UART0 = UART{
Buffer: NewRingBuffer(),
Bus: stm32.USART1,
TxAltFuncSelector: AF7_USART1_2,
RxAltFuncSelector: AF7_USART1_2,
}
DefaultUART = UART0
// Since we treat UART1 as zero, let's also call it by the real name
UART1 = UART0
// UART2
UART2 = &_UART2
_UART2 = UART{
Buffer: NewRingBuffer(),
Bus: stm32.USART2,
TxAltFuncSelector: AF7_USART1_2,
RxAltFuncSelector: AF7_USART1_2,
}
// I2C Busses
I2C2 = &I2C{
Bus: stm32.I2C2,
AltFuncSelector: I2C2_ALT_FUNC,
}
// Set "default" I2C bus to I2C2
I2C0 = I2C2
// SPI
SPI3 = SPI{
Bus: stm32.SPI3,
}
)
func init() {
// Enable UARTs Interrupts
UART0.Interrupt = interrupt.New(stm32.IRQ_USART1, _UART0.handleInterrupt)
UART2.Interrupt = interrupt.New(stm32.IRQ_USART2, _UART2.handleInterrupt)
}
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