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https://github.com/tinygo-org/tinygo.git
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Konstantin Sharlaimov
5f02d6b659
Define the board's external crystal (HSE) frequency `xtalHz` in the respective `board_*.go` files. Per-topology PLL tables (F1, F4, F7) will compute the register dividers from it. Moving this parameter to the board definition level cleanly isolates board hardware characteristics from general MCU chip configurations, eliminating the need for custom target build tags. Targets using HSE-clocked STM32 chips must define `xtalHz` or fail to build.
145 lines
2.4 KiB
Go
145 lines
2.4 KiB
Go
//go:build mksnanov3
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// The MKS Robin Nano V3.X board.
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// Documented at https://github.com/makerbase-mks/MKS-Robin-Nano-V3.X.
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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 xtalHz = 8_000_000
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// LED is also wired to the SD card card detect (CD) pin.
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const LED = PD12
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// UART pins
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const (
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UART_TX_PIN = PB10
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UART_RX_PIN = PB11
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)
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// EXP1 and EXP2 expansion ports for connecting
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// the MKS TS35 V2.0 expansion board.
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const (
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BEEPER = EXP1_1
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// LCD pins.
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LCD_DC = EXP1_8
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LCD_CS = EXP1_7
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LCD_RS = EXP1_4
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LCD_BACKLIGHT = EXP1_3
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// Touch pins. Note that some pins are shared with the
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// LCD SPI1 interface.
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TOUCH_CLK = EXP2_2
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TOUCH_CS = EXP1_5
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TOUCH_DIN = EXP2_6
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TOUCH_DOUT = EXP2_1
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TOUCH_IRQ = EXP1_6
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BUTTON = BUTTON_JOG
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BUTTON_JOG = EXP1_2
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BUTTON_JOG_CCW = EXP2_3
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BUTTON_JOG_CW = EXP2_5
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EXP1_1 = PC5
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EXP1_2 = PE13
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EXP1_3 = PD13
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EXP1_4 = PC6
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EXP1_5 = PE14
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EXP1_6 = PE15
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EXP1_7 = PD11
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EXP1_8 = PD10
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EXP2_1 = PA6
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EXP2_2 = PA5
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EXP2_3 = PE8
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EXP2_4 = PE10
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EXP2_5 = PE11
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EXP2_6 = PA7
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EXP2_7 = PE12
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)
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var (
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UART3 = &_UART3
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_UART3 = UART{
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Buffer: NewRingBuffer(),
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Bus: stm32.USART3,
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TxAltFuncSelector: AF7_USART1_2_3,
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RxAltFuncSelector: AF7_USART1_2_3,
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}
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DefaultUART = UART3
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)
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// set up RX IRQ handler. Follow similar pattern for other UARTx instances
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func init() {
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UART3.Interrupt = interrupt.New(stm32.IRQ_USART3, _UART3.handleInterrupt)
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}
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// SPI pins
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const (
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SPI1_SCK_PIN = EXP2_2
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SPI1_SDI_PIN = EXP2_1
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SPI1_SDO_PIN = EXP2_6
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SPI0_SCK_PIN = SPI1_SCK_PIN
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SPI0_SDI_PIN = SPI1_SDI_PIN
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SPI0_SDO_PIN = SPI1_SDO_PIN
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)
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// Since the first interface is named SPI1, both SPI0 and SPI1 refer to SPI1.
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var (
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SPI0 = &SPI{
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Bus: stm32.SPI1,
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AltFuncSelector: AF5_SPI1_SPI2,
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}
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SPI1 = SPI0
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)
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const (
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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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I2C0 = &I2C{
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Bus: stm32.I2C1,
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AltFuncSelector: AF4_I2C1_2_3,
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}
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)
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// Motor control pins.
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const (
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X_ENABLE = PE4
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X_STEP = PE3
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X_DIR = PE2
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X_DIAG = PA15
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X_UART = PD5
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Y_ENABLE = PE1
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Y_STEP = PE0
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Y_DIR = PB9
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Y_DIAG = PD2
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Y_UART = PD7
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Z_ENABLE = PB8
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Z_STEP = PB5
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Z_DIR = PB4
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Z_DIAG = PC8
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Z_UART = PD4
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E0_ENABLE = PB3
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E0_STEP = PD6
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E0_DIR = PD3
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E0_DIAG = PC4
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E0_UART = PD9
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E1_ENABLE = PA3
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E1_STEP = PD15
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E1_DIR = PA1
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E1_DIAG = PE7
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E1_UART = PD8
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)
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