96e863f0f3
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.
277 строки
15 КиБ
Go
277 строки
15 КиБ
Go
// +build teensy40
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package machine
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import (
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"device/nxp"
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"runtime/interrupt"
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)
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// Digital pins
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const (
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// = Pin // [Pad]: Alt Func 0 Alt Func 1 Alt Func 2 Alt Func 3 Alt Func 4 Alt Func 5 Alt Func 6 Alt Func 7 Alt Func 8 Alt Func 9
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// = ---- ----------- --------------- --------------- --------------- -------------- -------------------- ---------- -------------------- --------------------- --------------------- ----------------
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D0 = PA3 // [AD_B0_03]: FLEXCAN2_RX XBAR1_INOUT17 LPUART6_RX USB_OTG1_OC FLEXPWM1_PWMX01 GPIO1_IO03 REF_CLK_24M LPSPI3_PCS0 ~ ~
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D1 = PA2 // [AD_B0_02]: FLEXCAN2_TX XBAR1_INOUT16 LPUART6_TX USB_OTG1_PWR FLEXPWM1_PWMX00 GPIO1_IO02 LPI2C1_HREQ LPSPI3_SDI ~ ~
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D2 = PD4 // [EMC_04]: SEMC_DATA04 FLEXPWM4_PWMA02 SAI2_TX_DATA XBAR1_INOUT06 FLEXIO1_FLEXIO04 GPIO4_IO04 ~ ~ ~ ~
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D3 = PD5 // [EMC_05]: SEMC_DATA05 FLEXPWM4_PWMB02 SAI2_TX_SYNC XBAR1_INOUT07 FLEXIO1_FLEXIO05 GPIO4_IO05 ~ ~ ~ ~
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D4 = PD6 // [EMC_06]: SEMC_DATA06 FLEXPWM2_PWMA00 SAI2_TX_BCLK XBAR1_INOUT08 FLEXIO1_FLEXIO06 GPIO4_IO06 ~ ~ ~ ~
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D5 = PD8 // [EMC_08]: SEMC_DM00 FLEXPWM2_PWMA01 SAI2_RX_DATA XBAR1_INOUT17 FLEXIO1_FLEXIO08 GPIO4_IO08 ~ ~ ~ ~
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D6 = PB10 // [B0_10]: LCD_DATA06 QTIMER4_TIMER1 FLEXPWM2_PWMA02 SAI1_TX_DATA03 FLEXIO2_FLEXIO10 GPIO2_IO10 SRC_BOOT_CFG06 ENET2_CRS ~ ~
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D7 = PB17 // [B1_01]: LCD_DATA13 XBAR1_INOUT15 LPUART4_RX SAI1_TX_DATA00 FLEXIO2_FLEXIO17 GPIO2_IO17 FLEXPWM1_PWMB03 ENET2_RDATA00 FLEXIO3_FLEXIO17 ~
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D8 = PB16 // [B1_00]: LCD_DATA12 XBAR1_INOUT14 LPUART4_TX SAI1_RX_DATA00 FLEXIO2_FLEXIO16 GPIO2_IO16 FLEXPWM1_PWMA03 ENET2_RX_ER FLEXIO3_FLEXIO16 ~
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D9 = PB11 // [B0_11]: LCD_DATA07 QTIMER4_TIMER2 FLEXPWM2_PWMB02 SAI1_TX_DATA02 FLEXIO2_FLEXIO11 GPIO2_IO11 SRC_BOOT_CFG07 ENET2_COL ~ ~
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D10 = PB0 // [B0_00]: LCD_CLK QTIMER1_TIMER0 MQS_RIGHT LPSPI4_PCS0 FLEXIO2_FLEXIO00 GPIO2_IO00 SEMC_CSX01 ENET2_MDC ~ ~
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D11 = PB2 // [B0_02]: LCD_HSYNC QTIMER1_TIMER2 FLEXCAN1_TX LPSPI4_SDO FLEXIO2_FLEXIO02 GPIO2_IO02 SEMC_CSX03 ENET2_1588_EVENT0_OUT ~ ~
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D12 = PB1 // [B0_01]: LCD_ENABLE QTIMER1_TIMER1 MQS_LEFT LPSPI4_SDI FLEXIO2_FLEXIO01 GPIO2_IO01 SEMC_CSX02 ENET2_MDIO ~ ~
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D13 = PB3 // [B0_03]: LCD_VSYNC QTIMER2_TIMER0 FLEXCAN1_RX LPSPI4_SCK FLEXIO2_FLEXIO03 GPIO2_IO03 WDOG2_RESET_B_DEB ENET2_1588_EVENT0_IN ~ ~
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D14 = PA18 // [AD_B1_02]: USB_OTG1_ID QTIMER3_TIMER2 LPUART2_TX SPDIF_OUT ENET_1588_EVENT2_OUT GPIO1_IO18 USDHC1_CD_B KPP_ROW06 GPT2_CLK FLEXIO3_FLEXIO02
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D15 = PA19 // [AD_B1_03]: USB_OTG1_OC QTIMER3_TIMER3 LPUART2_RX SPDIF_IN ENET_1588_EVENT2_IN GPIO1_IO19 USDHC2_CD_B KPP_COL06 GPT2_CAPTURE1 FLEXIO3_FLEXIO03
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D16 = PA23 // [AD_B1_07]: FLEXSPIB_DATA00 LPI2C3_SCL LPUART3_RX SPDIF_EXT_CLK CSI_HSYNC GPIO1_IO23 USDHC2_DATA3 KPP_COL04 GPT2_COMPARE3 FLEXIO3_FLEXIO07
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D17 = PA22 // [AD_B1_06]: FLEXSPIB_DATA01 LPI2C3_SDA LPUART3_TX SPDIF_LOCK CSI_VSYNC GPIO1_IO22 USDHC2_DATA2 KPP_ROW04 GPT2_COMPARE2 FLEXIO3_FLEXIO06
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D18 = PA17 // [AD_B1_01]: USB_OTG1_PWR QTIMER3_TIMER1 LPUART2_RTS_B LPI2C1_SDA CCM_PMIC_READY GPIO1_IO17 USDHC1_VSELECT KPP_COL07 ENET2_1588_EVENT0_IN FLEXIO3_FLEXIO01
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D19 = PA16 // [AD_B1_00]: USB_OTG2_ID QTIMER3_TIMER0 LPUART2_CTS_B LPI2C1_SCL WDOG1_B GPIO1_IO16 USDHC1_WP KPP_ROW07 ENET2_1588_EVENT0_OUT FLEXIO3_FLEXIO00
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D20 = PA26 // [AD_B1_10]: FLEXSPIA_DATA03 WDOG1_B LPUART8_TX SAI1_RX_SYNC CSI_DATA07 GPIO1_IO26 USDHC2_WP KPP_ROW02 ENET2_1588_EVENT1_OUT FLEXIO3_FLEXIO10
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D21 = PA27 // [AD_B1_11]: FLEXSPIA_DATA02 EWM_OUT_B LPUART8_RX SAI1_RX_BCLK CSI_DATA06 GPIO1_IO27 USDHC2_RESET_B KPP_COL02 ENET2_1588_EVENT1_IN FLEXIO3_FLEXIO11
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D22 = PA24 // [AD_B1_08]: FLEXSPIA_SS1_B FLEXPWM4_PWMA00 FLEXCAN1_TX CCM_PMIC_READY CSI_DATA09 GPIO1_IO24 USDHC2_CMD KPP_ROW03 FLEXIO3_FLEXIO08 ~
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D23 = PA25 // [AD_B1_09]: FLEXSPIA_DQS FLEXPWM4_PWMA01 FLEXCAN1_RX SAI1_MCLK CSI_DATA08 GPIO1_IO25 USDHC2_CLK KPP_COL03 FLEXIO3_FLEXIO09 ~
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D24 = PA12 // [AD_B0_12]: LPI2C4_SCL CCM_PMIC_READY LPUART1_TX WDOG2_WDOG_B FLEXPWM1_PWMX02 GPIO1_IO12 ENET_1588_EVENT1_OUT NMI_GLUE_NMI ~ ~
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D25 = PA13 // [AD_B0_13]: LPI2C4_SDA GPT1_CLK LPUART1_RX EWM_OUT_B FLEXPWM1_PWMX03 GPIO1_IO13 ENET_1588_EVENT1_IN REF_CLK_24M ~ ~
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D26 = PA30 // [AD_B1_14]: FLEXSPIA_SCLK ACMP_OUT02 LPSPI3_SDO SAI1_TX_BCLK CSI_DATA03 GPIO1_IO30 USDHC2_DATA6 KPP_ROW00 ENET2_1588_EVENT3_OUT FLEXIO3_FLEXIO14
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D27 = PA31 // [AD_B1_15]: FLEXSPIA_SS0_B ACMP_OUT03 LPSPI3_SCK SAI1_TX_SYNC CSI_DATA02 GPIO1_IO31 USDHC2_DATA7 KPP_COL00 ENET2_1588_EVENT3_IN FLEXIO3_FLEXIO15
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D28 = PC18 // [EMC_32]: SEMC_DATA10 FLEXPWM3_PWMB01 LPUART7_RX CCM_PMIC_RDY CSI_DATA21 GPIO3_IO18 ENET2_TX_EN ~ ~ ~
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D29 = PD31 // [EMC_31]: SEMC_DATA09 FLEXPWM3_PWMA01 LPUART7_TX LPSPI1_PCS1 CSI_DATA22 GPIO4_IO31 ENET2_TDATA01 ~ ~ ~
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D30 = PC23 // [EMC_37]: SEMC_DATA15 XBAR1_IN23 GPT1_COMPARE3 SAI3_MCLK CSI_DATA16 GPIO3_IO23 USDHC2_WP ENET2_RX_EN FLEXCAN3_RX ~
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D31 = PC22 // [EMC_36]: SEMC_DATA14 XBAR1_IN22 GPT1_COMPARE2 SAI3_TX_DATA CSI_DATA17 GPIO3_IO22 USDHC1_WP ENET2_RDATA01 FLEXCAN3_TX ~
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D32 = PB12 // [B0_12]: LCD_DATA08 XBAR1_INOUT10 ARM_TRACE_CLK SAI1_TX_DATA01 FLEXIO2_FLEXIO12 GPIO2_IO12 SRC_BOOT_CFG08 ENET2_TDATA00 ~ ~
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D33 = PD7 // [EMC_07]: SEMC_DATA07 FLEXPWM2_PWMB00 SAI2_MCLK XBAR1_INOUT09 FLEXIO1_FLEXIO07 GPIO4_IO07 ~ ~ ~ ~
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D34 = PC15 // [SD_B0_03]: USDHC1_DATA1 FLEXPWM1_PWMB01 LPUART8_RTS_B XBAR1_INOUT07 LPSPI1_SDI GPIO3_IO15 ENET2_RDATA00 SEMC_CLK6 ~ ~
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D35 = PC14 // [SD_B0_02]: USDHC1_DATA0 FLEXPWM1_PWMA01 LPUART8_CTS_B XBAR1_INOUT06 LPSPI1_SDO GPIO3_IO14 ENET2_RX_ER SEMC_CLK5 ~ ~
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D36 = PC13 // [SD_B0_01]: USDHC1_CLK FLEXPWM1_PWMB00 LPI2C3_SDA XBAR1_INOUT05 LPSPI1_PCS0 GPIO3_IO13 FLEXSPIB_SS1_B ENET2_TX_CLK ENET2_REF_CLK2 ~
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D37 = PC12 // [SD_B0_00]: USDHC1_CMD FLEXPWM1_PWMA00 LPI2C3_SCL XBAR1_INOUT04 LPSPI1_SCK GPIO3_IO12 FLEXSPIA_SS1_B ENET2_TX_EN SEMC_DQS4 ~
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D38 = PC17 // [SD_B0_05]: USDHC1_DATA3 FLEXPWM1_PWMB02 LPUART8_RX XBAR1_INOUT09 FLEXSPIB_DQS GPIO3_IO17 CCM_CLKO2 ENET2_RX_EN ~ ~
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D39 = PC16 // [SD_B0_04]: USDHC1_DATA2 FLEXPWM1_PWMA02 LPUART8_TX XBAR1_INOUT08 FLEXSPIB_SS0_B GPIO3_IO16 CCM_CLKO1 ENET2_RDATA01 ~ ~
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)
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// Analog pins
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const (
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// = Pin // Dig | [Pad] {ADC1/ADC2}
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A0 = PA18 // D14 | [AD_B1_02] { 7 / 7 }
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A1 = PA19 // D15 | [AD_B1_03] { 8 / 8 }
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A2 = PA23 // D16 | [AD_B1_07] { 12 / 12 }
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A3 = PA22 // D17 | [AD_B1_06] { 11 / 11 }
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A4 = PA17 // D18 | [AD_B1_01] { 6 / 6 }
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A5 = PA16 // D19 | [AD_B1_00] { 5 / 5 }
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A6 = PA26 // D20 | [AD_B1_10] { 15 / 15 }
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A7 = PA27 // D21 | [AD_B1_11] { 0 / 0 }
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A8 = PA24 // D22 | [AD_B1_08] { 13 / 13 }
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A9 = PA25 // D23 | [AD_B1_09] { 14 / 14 }
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A10 = PA12 // D24 | [AD_B0_12] { 1 / - }
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A11 = PA13 // D25 | [AD_B0_13] { 2 / - }
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A12 = PA30 // D26 | [AD_B1_14] { - / 3 }
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A13 = PA31 // D27 | [AD_B1_15] { - / 4 }
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)
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// Default peripheral pins
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const (
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LED = D13
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UART_RX_PIN = UART1_RX_PIN // D0
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UART_TX_PIN = UART1_TX_PIN // D1
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SPI_SDI_PIN = SPI1_SDI_PIN // D12
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SPI_SDO_PIN = SPI1_SDO_PIN // D11
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SPI_SCK_PIN = SPI1_SCK_PIN // D13
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SPI_CS_PIN = SPI1_CS_PIN // D10
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I2C_SDA_PIN = I2C1_SDA_PIN // D18/A4
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I2C_SCL_PIN = I2C1_SCL_PIN // D19/A5
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)
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func init() {
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// register any interrupt handlers for this board's peripherals
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UART1.Interrupt = interrupt.New(nxp.IRQ_LPUART6, _UART1.handleInterrupt)
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UART2.Interrupt = interrupt.New(nxp.IRQ_LPUART4, _UART2.handleInterrupt)
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UART3.Interrupt = interrupt.New(nxp.IRQ_LPUART2, _UART3.handleInterrupt)
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UART4.Interrupt = interrupt.New(nxp.IRQ_LPUART3, _UART4.handleInterrupt)
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UART5.Interrupt = interrupt.New(nxp.IRQ_LPUART8, _UART5.handleInterrupt)
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UART6.Interrupt = interrupt.New(nxp.IRQ_LPUART1, _UART6.handleInterrupt)
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UART7.Interrupt = interrupt.New(nxp.IRQ_LPUART7, _UART7.handleInterrupt)
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}
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// #=====================================================#
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// | UART |
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// #===========#===========#=============#===============#
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// | Interface | Hardware | Clock(Freq) | RX/TX : Alt |
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// #===========#===========#=============#=========-=====#
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// | UART1 | LPUART6 | OSC(24 MHz) | D0/D1 : 2/2 |
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// | UART2 | LPUART4 | OSC(24 MHz) | D7/D8 : 2/2 |
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// | UART3 | LPUART2 | OSC(24 MHz) | D15/D14 : 2/2 |
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// | UART4 | LPUART3 | OSC(24 MHz) | D16/D17 : 2/2 |
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// | UART5 | LPUART8 | OSC(24 MHz) | D21/D20 : 2/2 |
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// | UART6 | LPUART1 | OSC(24 MHz) | D25/D24 : 2/2 |
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// | UART7 | LPUART7 | OSC(24 MHz) | D28/D29 : 2/2 |
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// #===========#===========#=============#=========-=====#
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const (
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UART1_RX_PIN = D0
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UART1_TX_PIN = D1
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UART2_RX_PIN = D7
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UART2_TX_PIN = D8
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UART3_RX_PIN = D15
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UART3_TX_PIN = D14
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UART4_RX_PIN = D16
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UART4_TX_PIN = D17
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UART5_RX_PIN = D21
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UART5_TX_PIN = D20
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UART6_RX_PIN = D25
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UART6_TX_PIN = D24
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UART7_RX_PIN = D28
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UART7_TX_PIN = D29
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)
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var (
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DefaultUART = UART1
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UART1 = &_UART1
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_UART1 = UART{
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Bus: nxp.LPUART6,
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Buffer: NewRingBuffer(),
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txBuffer: NewRingBuffer(),
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muxRX: muxSelect{ // D0 (PA3 [AD_B0_03])
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mux: nxp.IOMUXC_LPUART6_RX_SELECT_INPUT_DAISY_GPIO_AD_B0_03_ALT2,
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sel: &nxp.IOMUXC.LPUART6_RX_SELECT_INPUT,
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},
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muxTX: muxSelect{ // D1 (PA2 [AD_B0_02])
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mux: nxp.IOMUXC_LPUART6_TX_SELECT_INPUT_DAISY_GPIO_AD_B0_02_ALT2,
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sel: &nxp.IOMUXC.LPUART6_TX_SELECT_INPUT,
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},
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}
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UART2 = &_UART2
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_UART2 = UART{
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Bus: nxp.LPUART4,
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Buffer: NewRingBuffer(),
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txBuffer: NewRingBuffer(),
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muxRX: muxSelect{ // D7 (PB17 [B1_01])
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mux: nxp.IOMUXC_LPUART4_RX_SELECT_INPUT_DAISY_GPIO_B1_01_ALT2,
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sel: &nxp.IOMUXC.LPUART4_RX_SELECT_INPUT,
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},
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muxTX: muxSelect{ // D8 (PB16 [B1_00])
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mux: nxp.IOMUXC_LPUART4_TX_SELECT_INPUT_DAISY_GPIO_B1_00_ALT2,
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sel: &nxp.IOMUXC.LPUART4_TX_SELECT_INPUT,
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},
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}
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UART3 = &_UART3
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_UART3 = UART{
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Bus: nxp.LPUART2,
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Buffer: NewRingBuffer(),
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txBuffer: NewRingBuffer(),
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muxRX: muxSelect{ // D15 (PA19 [AD_B1_03])
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mux: nxp.IOMUXC_LPUART2_RX_SELECT_INPUT_DAISY_GPIO_AD_B1_03_ALT2,
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sel: &nxp.IOMUXC.LPUART2_RX_SELECT_INPUT,
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},
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muxTX: muxSelect{ // D14 (PA18 [AD_B1_02])
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mux: nxp.IOMUXC_LPUART2_TX_SELECT_INPUT_DAISY_GPIO_AD_B1_02_ALT2,
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sel: &nxp.IOMUXC.LPUART2_TX_SELECT_INPUT,
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},
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}
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UART4 = &_UART4
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_UART4 = UART{
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Bus: nxp.LPUART3,
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Buffer: NewRingBuffer(),
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txBuffer: NewRingBuffer(),
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muxRX: muxSelect{ // D16 (PA23 [AD_B1_07])
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mux: nxp.IOMUXC_LPUART3_RX_SELECT_INPUT_DAISY_GPIO_AD_B1_07_ALT2,
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sel: &nxp.IOMUXC.LPUART3_RX_SELECT_INPUT,
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},
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muxTX: muxSelect{ // D17 (PA22 [AD_B1_06])
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mux: nxp.IOMUXC_LPUART3_TX_SELECT_INPUT_DAISY_GPIO_AD_B1_06_ALT2,
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sel: &nxp.IOMUXC.LPUART3_TX_SELECT_INPUT,
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},
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}
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UART5 = &_UART5
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_UART5 = UART{
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Bus: nxp.LPUART8,
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Buffer: NewRingBuffer(),
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txBuffer: NewRingBuffer(),
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muxRX: muxSelect{ // D21 (PA27 [AD_B1_11])
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mux: nxp.IOMUXC_LPUART8_RX_SELECT_INPUT_DAISY_GPIO_AD_B1_11_ALT2,
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sel: &nxp.IOMUXC.LPUART8_RX_SELECT_INPUT,
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},
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muxTX: muxSelect{ // D20 (PA26 [AD_B1_10])
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mux: nxp.IOMUXC_LPUART8_TX_SELECT_INPUT_DAISY_GPIO_AD_B1_10_ALT2,
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sel: &nxp.IOMUXC.LPUART8_TX_SELECT_INPUT,
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},
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}
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UART6 = &_UART6
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_UART6 = UART{
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Bus: nxp.LPUART1,
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Buffer: NewRingBuffer(),
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txBuffer: NewRingBuffer(),
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// LPUART1 not connected via IOMUXC
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// RX: D24 (PA12 [AD_B0_12])
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// TX: D25 (PA13 [AD_B0_13])
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}
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UART7 = &_UART7
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_UART7 = UART{
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Bus: nxp.LPUART7,
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Buffer: NewRingBuffer(),
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txBuffer: NewRingBuffer(),
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muxRX: muxSelect{ // D28 (PC18 [EMC_32])
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mux: nxp.IOMUXC_LPUART7_RX_SELECT_INPUT_DAISY_GPIO_EMC_32_ALT2,
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sel: &nxp.IOMUXC.LPUART7_RX_SELECT_INPUT,
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},
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muxTX: muxSelect{ // D29 (PD31 [EMC_31])
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mux: nxp.IOMUXC_LPUART7_TX_SELECT_INPUT_DAISY_GPIO_EMC_31_ALT2,
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sel: &nxp.IOMUXC.LPUART7_TX_SELECT_INPUT,
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},
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}
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)
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// #===========#==========#===============#===========================#
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// | Interface | Hardware | Clock(Freq) | SDI/SDO/SCK/CS : Alt |
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// #===========#==========#===============#=================-=========#
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// | SPI1 | LPSPI4 | PLL2(132 MHz) | D12/D11/D13/D10 : 3/3/3/3 |
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// | SPI2 | LPSPI3 | PLL2(132 MHz) | D1/D26/D27/D0 : 7/2/2/7 |
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// | SPI3 | LPSPI1 | PLL2(132 MHz) | D34/D35/D37/D36 : 4/4/4/4 |
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// #===========#==========#===============#=================-=========#
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const (
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SPI1_SDI_PIN = D12
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SPI1_SDO_PIN = D11
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SPI1_SCK_PIN = D13
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SPI1_CS_PIN = D10
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SPI2_SDI_PIN = D1
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SPI2_SDO_PIN = D26
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SPI2_SCK_PIN = D27
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SPI2_CS_PIN = D0
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SPI3_SDI_PIN = D34
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SPI3_SDO_PIN = D35
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SPI3_SCK_PIN = D37
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SPI3_CS_PIN = D36
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)
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// #====================================================#
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// | I2C |
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// #===========#==========#=============#===============#
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// | Interface | Hardware | Clock(Freq) | SDA/SCL : Alt |
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// #===========#==========#=============#=========-=====#
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// | I2C1 | LPI2C1 | OSC(24 MHz) | D18/D19 : 3/3 |
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// | I2C2 | LPI2C3 | OSC(24 MHz) | D17/D16 : 1/1 |
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// | I2C3 | LPI2C4 | OSC(24 MHz) | D25/D24 : 0/0 |
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// #===========#==========#=============#=========-=====#
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const (
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I2C1_SDA_PIN = D18
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I2C1_SCL_PIN = D19
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I2C2_SDA_PIN = D17
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I2C2_SCL_PIN = D16
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I2C3_SDA_PIN = D25
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I2C3_SCL_PIN = D24
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)
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