Adafruit_Blinka/src/adafruit_blinka/board/beagleboard/beaglebone_black.py at 36885479b22d0f705b3833ac20af3c631fc8a39c · tchalupnik/Adafruit_Blinka · GitHub

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# SPDX-FileCopyrightText: 2021 Melissa LeBlanc-Williams for Adafruit Industries
#
# SPDX-License-Identifier: MIT
"""Pin definitions for the Beaglebone Black."""

from adafruit_blinka.microcontroller.am335x import pin

# initial pins, to mimic bonescript demo
# BeagleBone Black
# P8_1 = DGND        # DGND
# P8_2 = DGND        # DGND
P8_3 = pin.P8_3  # GPIO1_6 - GPIO_38
P8_4 = pin.P8_4  # GPIO1_7 - GPIO_39
P8_5 = pin.P8_5  # GPIO1_2 - GPIO_34
P8_6 = pin.P8_6  # GPIO1_3 - GPIO_35
P8_7 = pin.P8_7  # TIMER4 - GPIO_66
P8_8 = pin.P8_8  # TIMER7 - GPIO_67
P8_9 = pin.P8_9  # TIMER5 - GPIO_69
P8_10 = pin.P8_10  # TIMER6 - GPIO_68
P8_11 = pin.P8_11  # GPIO1_13 - GPIO_45
P8_12 = pin.P8_12  # GPIO1_12 - GPIO_44
P8_13 = pin.P8_13  # EHRPWM2B - GPIO_23
P8_14 = pin.P8_14  # GPIO0_26 - GPIO_26
P8_15 = pin.P8_15  # GPIO1_15 - GPIO_47
P8_16 = pin.P8_16  # GPIO1_14 - GPIO_46
P8_17 = pin.P8_17  # GPIO0_27 - GPIO_27
P8_18 = pin.P8_18  # GPIO2_1 - GPIO_65
P8_19 = pin.P8_19  # EHRPWM2A - GPIO_22
P8_20 = pin.P8_20  # GPIO1_31 - GPIO_63
P8_21 = pin.P8_21  # GPIO1_30 - GPIO_62
P8_22 = pin.P8_22  # GPIO1_5 - GPIO_37
P8_23 = pin.P8_23  # GPIO1_4 - GPIO_36
P8_24 = pin.P8_24  # GPIO1_1 - GPIO_33
P8_25 = pin.P8_25  # GPIO1_0 - GPIO_32
P8_26 = pin.P8_26  # GPIO1_29 - GPIO_61
P8_27 = pin.P8_27  # GPIO2_22 - GPIO_86
P8_28 = pin.P8_28  # GPIO2_24 - GPIO_88
P8_29 = pin.P8_29  # GPIO2_23 - GPIO_87
P8_30 = pin.P8_30  # GPIO2_25 - GPIO_89
P8_31 = pin.P8_31  # UART5_CTSN - GPIO_10
P8_32 = pin.P8_32  # UART5_RTSN - GPIO_11
P8_33 = pin.P8_33  # UART4_RTSN - GPIO_9
P8_34 = pin.P8_34  # UART3_RTSN - GPIO_81
P8_35 = pin.P8_35  # UART4_CTSN - GPIO_8
P8_36 = pin.P8_36  # UART3_CTSN - GPIO_80
P8_37 = pin.P8_37  # UART5_TXD - GPIO_78
P8_38 = pin.P8_38  # UART5_RXD - GPIO_79
P8_39 = pin.P8_39  # GPIO2_12 - GPIO_76
P8_40 = pin.P8_40  # GPIO2_13 - GPIO_77
P8_41 = pin.P8_41  # GPIO2_10 - GPIO_74
P8_42 = pin.P8_42  # GPIO2_11 - GPIO_75
P8_43 = pin.P8_43  # GPIO2_8 - GPIO_72
P8_44 = pin.P8_44  # GPIO2_9 - GPIO_73
P8_45 = pin.P8_45  # GPIO2_6 - GPIO_70
P8_46 = pin.P8_46  # GPIO2_7 - GPIO_71

# P9_1 = DGND        # DGND
# P9_2 = DGND        # DGND
# P9_3 = VDD_3V3     # VDD_3V3
# P9_4 = VDD_3V3     # VDD_3V3
# P9_5 = VDD_5V      # VDD_5V
# P9_6 = VDD_5V      # VDD_5V
# P9_7 = SYS_5V      # SYS_5V
# P9_8 = SYS_5V      # SYS_5V
# P9_9 = PWR_BUT     # PWR_BUT
# P9_10 = SYS_RESETN # SYS_RESETn
P9_11 = pin.P9_11  # UART4_RXD - GPIO_30
P9_12 = pin.P9_12  # GPIO1_28 - GPIO_60
P9_13 = pin.P9_13  # UART4_TXD - GPIO_31
P9_14 = pin.P9_14  # EHRPWM1A - GPIO_50
P9_15 = pin.P9_15  # GPIO1_16 - GPIO_48
P9_16 = pin.P9_16  # EHRPWM1B - GPIO_51
P9_17 = pin.P9_17  # I2C1_SCL - GPIO_5
P9_18 = pin.P9_18  # I2C1_SDA - GPIO_4
P9_19 = pin.P9_19  # I2C2_SCL - GPIO_13
P9_20 = pin.P9_20  # I2C2_SDA - GPIO_12
P9_21 = pin.P9_21  # UART2_TXD - GPIO_3
P9_22 = pin.P9_22  # UART2_RXD - GPIO_2
P9_23 = pin.P9_23  # GPIO1_17 - GPIO_49
P9_24 = pin.P9_24  # UART1_TXD - GPIO_15
P9_25 = pin.P9_25  # GPIO3_21 - GPIO_117
P9_26 = pin.P9_26  # UART1_RXD - GPIO_14
P9_27 = pin.P9_27  # GPIO3_19 - GPIO_115
P9_28 = pin.P9_28  # SPI1_CS0 - GPIO_113
P9_29 = pin.P9_29  # SPI1_D0 - GPIO_111
P9_30 = pin.P9_30  # SPI1_D1 - GPIO_112
P9_31 = pin.P9_31  # SPI1_SCLK - GPIO_110
# P9_32 = VDD_ADC    # VDD_ADC
# P9_33 = AIN4       # AIN4
# P9_34 = GNDA_ADC   # GNDA_ADC
# P9_35 = AIN6       # AIN6
# P9_36 = AIN5       # AIN5
# P9_37 = AIN2       # AIN2
# P9_38 = AIN3       # AIN3
# P9_39 = AIN0       # AIN0
# P9_40 = AIN1       # AIN1
P9_41 = pin.P9_41  # CLKOUT2 - GPIO_20
P9_42 = pin.P9_42  # GPIO0_7 - GPIO_7
# P9_43 = DGND       # DGND
# P9_44 = DGND       # DGND
# P9_45 = DGND       # DGND
# P9_46 = DGND       # DGND

# common to all beagles
LED_USR0 = pin.USR0
LED_USR1 = pin.USR1
LED_USR2 = pin.USR2
LED_USR3 = pin.USR3

# I2C and SPI pins from:
# src/adafruit_blinka/board/raspi_40pin.py
# SDA = pin.SDA
# SCL = pin.SCL
# CE1 = pin.D7
# CE0 = pin.D8
# MISO = pin.D9
# MOSI = pin.D10
# SCLK = pin.D11
# SCK = pin.D11
# TXD = pin.D14
# RXD = pin.D15
# MISO_1 = pin.D19
# MOSI_1 = pin.D20
# SCLK_1 = pin.D21
# SCK_1 = pin.D21

SDA = pin.P9_20  # I2C2_SDA
SCL = pin.P9_19  # I2C2_SCL

# Refer to header default pin modes
# http://beagleboard.org/static/images/cape-headers.png
#
# P9_17 (SPI0_CSO => CE0) enables peripheral device
# P9_18 (SPI0_D1 => MOSI) outputs data to peripheral device
# P9_21 (SPIO_DO => MISO) receives data from peripheral device
# P9_22 (SPI0_SCLK => SCLK) outputs clock signal
#
# Use config-pin to set pin mode for SPI pins
# https://github.com/beagleboard/bb.org-overlays/tree/master/tools/beaglebone-universal-io
# config-pin p9.17 spi_cs
# config-pin p9.18 spi
# config-pin p9.21 spi
# config-pin p9.22 spi_sclk
#
CE0 = pin.P9_17  # SPI0_CS0
MOSI = pin.P9_18  # SPI0_D1 (data out)
MISO = pin.P9_21  # SPI0_D0 (data in)
SCLK = pin.P9_22  # SPI0_SCLK
# CircuitPython naming convention for SPI Clock
SCK = SCLK

# SPI0 standard aliases for peripheral interface compatibility
SPI0_CS0 = CE0
SPI0_D1 = MOSI  # D1 = Data Out = MOSI
SPI0_D0 = MISO  # D0 = Data In = MISO
SPI0_SCLK = SCLK

# Pins for SPI1
# refer to:
# http://beagleboard.org/static/images/cape-headers-spi.png
#
# CE1 P9.28 SPI1_CS0
# MISO_1 P9.29 SPI1_D0
# MOSI_1 P9.30 SPI1_D1
# SCLK_1 P9.31 SPI_SCLK
#
# SPI1 conflicts with HDMI Audio (McASP)
#
# Refer to:
# https://elinux.org/Beagleboard:BeagleBoneBlack_Debian#U-Boot_Overlays
#
# To Disable HDMI AUDIO, uncomment this line in /boot/uEnv.txt:
# disable_uboot_overlay_audio=1
#
# Set pin modes for SPI1 with:
#
# config-pin p9.28 spi1_cs
# config-pin p9.29 spi1
# config-pin p9.30 spi1
# config-pin p9.31 spi_sclk
CE1 = pin.P9_28  # SPI1_CS0
MISO_1 = pin.P9_29  # SPI1_D0 (data in)
MOSI_1 = pin.P9_30  # SPI1_D1 (data out)
SCLK_1 = pin.P9_31  # SPI1_SCLK
# CircuitPython naming convention for SPI Clock
SCK_1 = SCLK_1

# SPI1 standard aliases for peripheral interface compatibility
SPI1_CS0 = CE1
SPI1_D0 = MISO_1  # D0 = Data In = MISO
SPI1_D1 = MOSI_1  # D1 = Data Out = MOSI
SPI1_SCLK = SCLK_1

# I2C standard aliases for peripheral interface compatibility
I2C2_SDA = SDA
I2C2_SCL = SCL

# UART aliases - BeagleBone Black common UART pins
# Note: UART0 conflicts with console on most images
UART1_TXD = pin.P9_24
UART1_RXD = pin.P9_26
UART2_TXD = pin.P9_21  # conflicts with SPI0_MISO
UART2_RXD = pin.P9_22  # conflicts with SPI0_SCLK
UART4_TXD = pin.P9_13
UART4_RXD = pin.P9_11

# Peripheral port configurations for BeagleBone Black
# ordered as spiId, sckId, mosiId, misoId
spiPorts = (
    (0, SPI0_SCLK, SPI0_D1, SPI0_D0),
    (1, SPI1_SCLK, SPI1_D1, SPI1_D0),
)

# ordered as i2cId, SCL, SDA
i2cPorts = (
    (2, I2C2_SCL, I2C2_SDA),
)

# ordered as uartId, txId, rxId
uartPorts = (
    (1, UART1_TXD, UART1_RXD),
    (2, UART2_TXD, UART2_RXD),
    (4, UART4_TXD, UART4_RXD),
)