softonik/tinygo
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tinygo/src/machine/board_atsame54-xpro.go
Ayke van Laethem 96e863f0f3 all: add a flag to the command line to select the serial implementation 
This can be very useful for some purposes:

  * It makes it possible to disable the UART in cases where it is not
    needed or needs to be disabled to conserve power.
  * It makes it possible to disable the serial output to reduce code
    size, which may be important for some chips. Sometimes, a few kB can
    be saved this way.
  * It makes it possible to override the default, for example you might
    want to use an actual UART to debug the USB-CDC implementation.

It also lowers the dependency on having machine.Serial defined, which is
often not defined when targeting a chip. Eventually, we might want to
make it possible to write `-target=nrf52` or `-target=atmega328p` for
example to target the chip itself with no board specific assumptions.

The defaults don't change. I checked this by running `make smoketest`
before and after and comparing the results.
2021-06-25 17:58:39 +02:00

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// +build atsame54_xpro
package machine
import (
"device/sam"
"runtime/interrupt"
)
// Definition for compatibility, but not used
const RESET_MAGIC_VALUE = 0x00000000
const (
LED = PC18
BUTTON = PB31
)
const (
// https://ww1.microchip.com/downloads/en/DeviceDoc/70005321A.pdf
// Extension Header EXT1
EXT1_PIN3_ADC_P = PB04
EXT1_PIN4_ADC_N = PB05
EXT1_PIN5_GPIO1 = PA06
EXT1_PIN6_GPIO2 = PA07
EXT1_PIN7_PWM_P = PB08
EXT1_PIN8_PWM_N = PB09
EXT1_PIN9_IRQ = PB07
EXT1_PIN9_GPIO = PB07
EXT1_PIN10_SPI_SS_B = PA27
EXT1_PIN10_GPIO = PA27
EXT1_PIN11_TWI_SDA = PA22
EXT1_PIN12_TWI_SCL = PA23
EXT1_PIN13_UART_RX = PA05
EXT1_PIN14_UART_TX = PA04
EXT1_PIN15_SPI_SS_A = PB28
EXT1_PIN16_SPI_SDO = PB27
EXT1_PIN17_SPI_SDI = PB29
EXT1_PIN18_SPI_SCK = PB26
// Extension Header EXT2
EXT2_PIN3_ADC_P = PB00
EXT2_PIN4_ADC_N = PA03
EXT2_PIN5_GPIO1 = PB01
EXT2_PIN6_GPIO2 = PB06
EXT2_PIN7_PWM_P = PB14
EXT2_PIN8_PWM_N = PB15
EXT2_PIN9_IRQ = PD00
EXT2_PIN9_GPIO = PD00
EXT2_PIN10_SPI_SS_B = PB02
EXT2_PIN10_GPIO = PB02
EXT2_PIN11_TWI_SDA = PD08
EXT2_PIN12_TWI_SCL = PD09
EXT2_PIN13_UART_RX = PB17
EXT2_PIN14_UART_TX = PB16
EXT2_PIN15_SPI_SS_A = PC06
EXT2_PIN16_SPI_SDO = PC04
EXT2_PIN17_SPI_SDI = PC07
EXT2_PIN18_SPI_SCK = PC05
// Extension Header EXT3
EXT3_PIN3_ADC_P = PC02
EXT3_PIN4_ADC_N = PC03
EXT3_PIN5_GPIO1 = PC01
EXT3_PIN6_GPIO2 = PC10
EXT3_PIN7_PWM_P = PD10
EXT3_PIN8_PWM_N = PD11
EXT3_PIN9_IRQ = PC30
EXT3_PIN9_GPIO = PC30
EXT3_PIN10_SPI_SS_B = PC31
EXT3_PIN10_GPIO = PC31
EXT3_PIN11_TWI_SDA = PD08
EXT3_PIN12_TWI_SCL = PD09
EXT3_PIN13_UART_RX = PC23
EXT3_PIN14_UART_TX = PC22
EXT3_PIN15_SPI_SS_A = PC14
EXT3_PIN16_SPI_SDO = PC04
EXT3_PIN17_SPI_SDI = PC07
EXT3_PIN18_SPI_SCK = PC05
// SD_CARD
SD_CARD_MCDA0 = PB18
SD_CARD_MCDA1 = PB19
SD_CARD_MCDA2 = PB20
SD_CARD_MCDA3 = PB21
SD_CARD_MCCK = PA21
SD_CARD_MCCDA = PA20
SD_CARD_DETECT = PD20
SD_CARD_PROTECT = PD21
// I2C
I2C_SDA = PD08
I2C_SCL = PD09
// CAN
CAN0_TX = PA22
CAN0_RX = PA23
CAN1_STANDBY = PC13
CAN1_TX = PB12
CAN1_RX = PB13
CAN_STANDBY = CAN1_STANDBY
CAN_TX = CAN1_TX
CAN_RX = CAN1_RX
// PDEC
PDEC_PHASE_A = PC16
PDEC_PHASE_B = PC17
PDEC_INDEX = PC18
// PCC
PCC_I2C_SDA = PD08
PCC_I2C_SCL = PD09
PCC_VSYNC_DEN1 = PA12
PCC_HSYNC_DEN2 = PA13
PCC_CLK = PA14
PCC_XCLK = PA15
PCC_DATA00 = PA16
PCC_DATA01 = PA17
PCC_DATA02 = PA18
PCC_DATA03 = PA19
PCC_DATA04 = PA20
PCC_DATA05 = PA21
PCC_DATA06 = PA22
PCC_DATA07 = PA23
PCC_DATA08 = PB14
PCC_DATA09 = PB15
PCC_RESET = PC12
PCC_PWDN = PC11
// Ethernet
ETHERNET_TXCK = PA14
ETHERNET_TXEN = PA17
ETHERNET_TX0 = PA18
ETHERNET_TX1 = PA19
ETHERNET_RXER = PA15
ETHERNET_RX0 = PA13
ETHERNET_RX1 = PA12
ETHERNET_RXDV = PC20
ETHERNET_MDIO = PC12
ETHERNET_MDC = PC11
ETHERNET_INT = PD12
ETHERNET_RESET = PC21
PIN_QT_BUTTON = PA16
PIN_BTN0 = PB31
PIN_ETH_LED = PC15
PIN_LED0 = PC18
PIN_ADC_DAC = PA02
PIN_VBUS_DETECT = PC00
PIN_USB_ID = PC19
)
// USBCDC pins
const (
USBCDC_DM_PIN = PA24
USBCDC_DP_PIN = PA25
)
// UART pins
const (
// Extension Header EXT1
UART_TX_PIN = PA04 // TX : SERCOM0/PAD[0]
UART_RX_PIN = PA05 // RX : SERCOM0/PAD[1]
// Extension Header EXT2
UART2_TX_PIN = PB16 // TX : SERCOM5/PAD[0]
UART2_RX_PIN = PB17 // RX : SERCOM5/PAD[1]
// Extension Header EXT3
UART3_TX_PIN = PC22 // TX : SERCOM1/PAD[0]
UART3_RX_PIN = PC23 // RX : SERCOM1/PAD[1]
// Virtual COM Port
UART4_TX_PIN = PB25 // TX : SERCOM2/PAD[0]
UART4_RX_PIN = PB24 // RX : SERCOM2/PAD[1]
)
// I2C pins
const (
// Extension Header EXT1
SDA0_PIN = PA22 // SDA: SERCOM3/PAD[0]
SCL0_PIN = PA23 // SCL: SERCOM3/PAD[1]
// Extension Header EXT2
SDA1_PIN = PD08 // SDA: SERCOM7/PAD[0]
SCL1_PIN = PD09 // SCL: SERCOM7/PAD[1]
// Extension Header EXT3
SDA2_PIN = PD08 // SDA: SERCOM7/PAD[0]
SCL2_PIN = PD09 // SCL: SERCOM7/PAD[1]
// Data Gateway Interface
SDA_DGI_PIN = PD08 // SDA: SERCOM7/PAD[0]
SCL_DGI_PIN = PD09 // SCL: SERCOM7/PAD[1]
SDA_PIN = SDA0_PIN
SCL_PIN = SCL0_PIN
)
// SPI pins
const (
// Extension Header EXT1
SPI0_SCK_PIN = PB26 // SCK: SERCOM4/PAD[1]
SPI0_SDO_PIN = PB27 // SDO: SERCOM4/PAD[0]
SPI0_SDI_PIN = PB29 // SDI: SERCOM4/PAD[3]
SPI0_SS_PIN = PB28 // SS : SERCOM4/PAD[2]
// Extension Header EXT2
SPI1_SCK_PIN = PC05 // SCK: SERCOM6/PAD[1]
SPI1_SDO_PIN = PC04 // SDO: SERCOM6/PAD[0]
SPI1_SDI_PIN = PC07 // SDI: SERCOM6/PAD[3]
SPI1_SS_PIN = PC06 // SS : SERCOM6/PAD[2]
// Extension Header EXT3
SPI2_SCK_PIN = PC05 // SCK: SERCOM6/PAD[1]
SPI2_SDO_PIN = PC04 // SDO: SERCOM6/PAD[0]
SPI2_SDI_PIN = PC07 // SDI: SERCOM6/PAD[3]
SPI2_SS_PIN = PC14 // SS : GPIO
// Data Gateway Interface
SPI_DGI_SCK_PIN = PC05 // SCK: SERCOM6/PAD[1]
SPI_DGI_SDO_PIN = PC04 // SDO: SERCOM6/PAD[0]
SPI_DGI_SDI_PIN = PC07 // SDI: SERCOM6/PAD[3]
SPI_DGI_SS_PIN = PD01 // SS : GPIO
)
// USB CDC identifiers
const (
usb_STRING_PRODUCT = "SAM E54 Xplained Pro"
usb_STRING_MANUFACTURER = "Atmel"
)
var (
usb_VID uint16 = 0x03EB
usb_PID uint16 = 0x2404
)
// UART on the SAM E54 Xplained Pro
var (
// Extension Header EXT1
UART1 = &_UART1
_UART1 = UART{
Buffer: NewRingBuffer(),
Bus: sam.SERCOM0_USART_INT,
SERCOM: 0,
}
// Extension Header EXT2
UART2 = &_UART2
_UART2 = UART{
Buffer: NewRingBuffer(),
Bus: sam.SERCOM5_USART_INT,
SERCOM: 5,
}
// Extension Header EXT3
UART3 = &_UART3
_UART3 = UART{
Buffer: NewRingBuffer(),
Bus: sam.SERCOM1_USART_INT,
SERCOM: 1,
}
// EDBG Virtual COM Port
UART4 = &_UART4
_UART4 = UART{
Buffer: NewRingBuffer(),
Bus: sam.SERCOM2_USART_INT,
SERCOM: 2,
}
)
func init() {
UART1.Interrupt = interrupt.New(sam.IRQ_SERCOM0_2, _UART1.handleInterrupt)
UART2.Interrupt = interrupt.New(sam.IRQ_SERCOM5_2, _UART2.handleInterrupt)
UART3.Interrupt = interrupt.New(sam.IRQ_SERCOM1_2, _UART3.handleInterrupt)
UART4.Interrupt = interrupt.New(sam.IRQ_SERCOM2_2, _UART4.handleInterrupt)
}
// I2C on the SAM E54 Xplained Pro
var (
// Extension Header EXT1
I2C0 = I2C{
Bus: sam.SERCOM3_I2CM,
SERCOM: 3,
}
// Extension Header EXT2
I2C1 = I2C{
Bus: sam.SERCOM7_I2CM,
SERCOM: 7,
}
// Extension Header EXT3
I2C2 = I2C{
Bus: sam.SERCOM7_I2CM,
SERCOM: 7,
}
// Data Gateway Interface
I2C3 = I2C{
Bus: sam.SERCOM7_I2CM,
SERCOM: 7,
}
)
// SPI on the SAM E54 Xplained Pro
var (
// Extension Header EXT1
SPI0 = SPI{
Bus: sam.SERCOM4_SPIM,
SERCOM: 4,
}
// Extension Header EXT2
SPI1 = SPI{
Bus: sam.SERCOM6_SPIM,
SERCOM: 6,
}
// Extension Header EXT3
SPI2 = SPI{
Bus: sam.SERCOM6_SPIM,
SERCOM: 6,
}
// Data Gateway Interface
SPI3 = SPI{
Bus: sam.SERCOM6_SPIM,
SERCOM: 6,
}
)
// CAN on the SAM E54 Xplained Pro
var (
CAN0 = CAN{
Bus: sam.CAN0,
}
CAN1 = CAN{
Bus: sam.CAN1,
}
)
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