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add basic UART handler

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This commit is contained in:
ardnew
2020-08-29 14:32:24 -05:00
committed by Ron Evans
parent 19d5e05e37
commit a9a6d0ee63
3 changed files with 79 additions and 25 deletions
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src/machine/board_feather-stm32f405.go
+29 -1
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@@ -2,6 +2,11 @@
package machine
import (
"device/stm32"
"runtime/interrupt"
)
const (
NUM_DIGITAL_IO_PINS = 39
NUM_ANALOG_IO_PINS = 7
@@ -113,7 +118,30 @@ const (
UART_TX_PIN = UART0_TX_PIN //
)
func initUART() {}
var (
UART1 = UART{
Buffer: NewRingBuffer(),
Bus: stm32.USART3,
AltFuncSelector: stm32.AF7_USART1_2_3,
}
UART2 = UART{
Buffer: NewRingBuffer(),
Bus: stm32.USART6,
AltFuncSelector: stm32.AF8_USART4_5_6,
}
UART3 = UART{
Buffer: NewRingBuffer(),
Bus: stm32.USART1,
AltFuncSelector: stm32.AF7_USART1_2_3,
}
UART0 = UART1
)
func initUART() {
UART1.Interrupt = interrupt.New(stm32.IRQ_USART3, UART1.handleInterrupt)
UART2.Interrupt = interrupt.New(stm32.IRQ_USART6, UART2.handleInterrupt)
UART3.Interrupt = interrupt.New(stm32.IRQ_USART1, UART3.handleInterrupt)
}
// -- SPI ----------------------------------------------------------------------