rpi

package
v3.8.2 Latest Latest
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 Go to latest Published: Apr 27, 2023 License: Apache-2.0 Imports: 9 Imported by: 31

Documentation

Overview

Package rpi contains Raspberry Pi hardware logic. It is intrinsically related to package bcm283x.

Assumes Raspbian but does not directly depend on the distro being Raspbian. Windows IoT is currently not supported.

Physical

The physical pin out is based on http://www.raspberrypi.org information but http://pinout.xyz/ has a nice interactive web page.

Index

Constants

This section is empty.

Variables

View Source 
var (
	// Raspberry Pi A and B, 26 pin header:
	P1_1  pin.Pin    = pin.V3_3       // max 30mA
	P1_2  pin.Pin    = pin.V5         // (filtered)
	P1_3  gpio.PinIO = bcm283x.GPIO2  // High, I2C1_SDA
	P1_4  pin.Pin    = pin.V5         //
	P1_5  gpio.PinIO = bcm283x.GPIO3  // High, I2C1_SCL
	P1_6  pin.Pin    = pin.GROUND     //
	P1_7  gpio.PinIO = bcm283x.GPIO4  // High, CLK0
	P1_8  gpio.PinIO = bcm283x.GPIO14 // Low,  UART0_TX, UART1_TX
	P1_9  pin.Pin    = pin.GROUND     //
	P1_10 gpio.PinIO = bcm283x.GPIO15 // Low,  UART0_RX, UART1_RX
	P1_11 gpio.PinIO = bcm283x.GPIO17 // Low,  UART0_RTS, SPI1_CS1, UART1_RTS
	P1_12 gpio.PinIO = bcm283x.GPIO18 // Low,  I2S_SCK, SPI1_CS0, PWM0
	P1_13 gpio.PinIO = bcm283x.GPIO27 // Low,
	P1_14 pin.Pin    = pin.GROUND     //
	P1_15 gpio.PinIO = bcm283x.GPIO22 // Low,
	P1_16 gpio.PinIO = bcm283x.GPIO23 // Low,
	P1_17 pin.Pin    = pin.V3_3       //
	P1_18 gpio.PinIO = bcm283x.GPIO24 // Low,
	P1_19 gpio.PinIO = bcm283x.GPIO10 // Low, SPI0_MOSI
	P1_20 pin.Pin    = pin.GROUND     //
	P1_21 gpio.PinIO = bcm283x.GPIO9  // Low, SPI0_MISO
	P1_22 gpio.PinIO = bcm283x.GPIO25 // Low,
	P1_23 gpio.PinIO = bcm283x.GPIO11 // Low, SPI0_CLK
	P1_24 gpio.PinIO = bcm283x.GPIO8  // High, SPI0_CS0
	P1_25 pin.Pin    = pin.GROUND     //
	P1_26 gpio.PinIO = bcm283x.GPIO7  // High, SPI0_CS1

	// Raspberry Pi A+, B+, 2 and later, 40 pin header (also named J8):
	P1_27 gpio.PinIO = bcm283x.GPIO0  // High, I2C0_SDA used to probe for HAT EEPROM, see https://github.com/raspberrypi/hats
	P1_28 gpio.PinIO = bcm283x.GPIO1  // High, I2C0_SCL
	P1_29 gpio.PinIO = bcm283x.GPIO5  // High, CLK1
	P1_30 pin.Pin    = pin.GROUND     //
	P1_31 gpio.PinIO = bcm283x.GPIO6  // High, CLK2
	P1_32 gpio.PinIO = bcm283x.GPIO12 // Low,  PWM0
	P1_33 gpio.PinIO = bcm283x.GPIO13 // Low,  PWM1
	P1_34 pin.Pin    = pin.GROUND     //
	P1_35 gpio.PinIO = bcm283x.GPIO19 // Low,  I2S_WS, SPI1_MISO, PWM1
	P1_36 gpio.PinIO = bcm283x.GPIO16 // Low,  UART0_CTS, SPI1_CS2, UART1_CTS
	P1_37 gpio.PinIO = bcm283x.GPIO26 //
	P1_38 gpio.PinIO = bcm283x.GPIO20 // Low,  I2S_DIN, SPI1_MOSI, CLK0
	P1_39 pin.Pin    = pin.GROUND     //
	P1_40 gpio.PinIO = bcm283x.GPIO21 // Low,  I2S_DOUT, SPI1_CLK, CLK1

	// P5 header on Raspberry Pi A and B, PCB v2:
	P5_1 pin.Pin    = pin.V5
	P5_2 pin.Pin    = pin.V3_3
	P5_3 gpio.PinIO = bcm283x.GPIO28 // Float, I2C0_SDA, I2S_SCK
	P5_4 gpio.PinIO = bcm283x.GPIO29 // Float, I2C0_SCL, I2S_WS
	P5_5 gpio.PinIO = bcm283x.GPIO30 // Low,   I2S_DIN, UART0_CTS, UART1_CTS
	P5_6 gpio.PinIO = bcm283x.GPIO31 // Low,   I2S_DOUT, UART0_RTS, UART1_RTS
	P5_7 pin.Pin    = pin.GROUND
	P5_8 pin.Pin    = pin.GROUND

	AUDIO_RIGHT         = bcm283x.GPIO40 // Low,   PWM0, SPI2_MISO, UART1_TX
	AUDIO_LEFT          = bcm283x.GPIO41 // Low,   PWM1, SPI2_MOSI, UART1_RX
	HDMI_HOTPLUG_DETECT = bcm283x.GPIO46 // High,
)

Pin as connect on the 40 pins extension header.

Schematics are useful to know what is connected to what: https://www.raspberrypi.org/documentation/hardware/raspberrypi/schematics/README.md

The actual pin mapping depends on the board revision! The default values are set as the 40 pins header on Raspberry Pi 2 and Raspberry Pi 3.

Some header info here: http://elinux.org/RPi_Low-level_peripherals

P1 is also known as J8 on A+, B+, 2 and later.

View Source 
var (
	SO_1   pin.Pin    = pin.GROUND     // GND
	SO_2   pin.Pin    = pin.INVALID    // EMMC_DISABLE_N
	SO_3   gpio.PinIO = bcm283x.GPIO0  // GPIO0
	SO_4   pin.Pin    = pin.INVALID    // NC, SDX_VDD, NC
	SO_5   gpio.PinIO = bcm283x.GPIO1  // GPIO1
	SO_6   pin.Pin    = pin.INVALID    // NC, SDX_VDD, NC
	SO_7   pin.Pin    = pin.GROUND     // GND
	SO_8   pin.Pin    = pin.GROUND     // GND
	SO_9   gpio.PinIO = bcm283x.GPIO2  // GPIO2
	SO_10  pin.Pin    = pin.INVALID    // NC, SDX_CLK, NC
	SO_11  gpio.PinIO = bcm283x.GPIO3  // GPIO3
	SO_12  pin.Pin    = pin.INVALID    // NC, SDX_CMD, NC
	SO_13  pin.Pin    = pin.GROUND     // GND
	SO_14  pin.Pin    = pin.GROUND     // GND
	SO_15  gpio.PinIO = bcm283x.GPIO4  // GPIO4
	SO_16  pin.Pin    = pin.INVALID    // NC, SDX_D0, NC
	SO_17  gpio.PinIO = bcm283x.GPIO5  // GPIO5
	SO_18  pin.Pin    = pin.INVALID    // NC, SDX_D1, NC
	SO_19  pin.Pin    = pin.GROUND     // GND
	SO_20  pin.Pin    = pin.GROUND     // GND
	SO_21  gpio.PinIO = bcm283x.GPIO6  // GPIO6
	SO_22  pin.Pin    = pin.INVALID    // NC, SDX_D2, NC
	SO_23  gpio.PinIO = bcm283x.GPIO7  // GPIO7
	SO_24  pin.Pin    = pin.INVALID    // NC, SDX_D3, NC
	SO_25  pin.Pin    = pin.GROUND     // GND
	SO_26  pin.Pin    = pin.GROUND     // GND
	SO_27  gpio.PinIO = bcm283x.GPIO8  // GPIO8
	SO_28  gpio.PinIO = bcm283x.GPIO28 // GPIO28
	SO_29  gpio.PinIO = bcm283x.GPIO9  // GPIO9
	SO_30  gpio.PinIO = bcm283x.GPIO29 // GPIO29
	SO_31  pin.Pin    = pin.GROUND     // GND
	SO_32  pin.Pin    = pin.GROUND     // GND
	SO_33  gpio.PinIO = bcm283x.GPIO10 // GPIO10
	SO_34  gpio.PinIO = bcm283x.GPIO30 // GPIO30
	SO_35  gpio.PinIO = bcm283x.GPIO11 // GPIO11
	SO_36  gpio.PinIO = bcm283x.GPIO31 // GPIO31
	SO_37  pin.Pin    = pin.GROUND     // GND
	SO_38  pin.Pin    = pin.GROUND     // GND
	SO_39  pin.Pin    = pin.DC_IN      // GPIO0-27_VDD
	SO_40  pin.Pin    = pin.DC_IN      // GPIO0-27_VDD
	SO_41  pin.Pin    = pin.DC_IN      // GPIO28-45_VDD
	SO_42  pin.Pin    = pin.DC_IN      // GPIO28-45_VDD
	SO_43  pin.Pin    = pin.GROUND     // GND
	SO_44  pin.Pin    = pin.GROUND     // GND
	SO_45  gpio.PinIO = bcm283x.GPIO12 // GPIO12
	SO_46  gpio.PinIO = bcm283x.GPIO32 // GPIO32
	SO_47  gpio.PinIO = bcm283x.GPIO13 // GPIO13
	SO_48  gpio.PinIO = bcm283x.GPIO33 // GPIO33
	SO_49  pin.Pin    = pin.GROUND     // GND
	SO_50  pin.Pin    = pin.GROUND     // GND
	SO_51  gpio.PinIO = bcm283x.GPIO14 // GPIO14
	SO_52  gpio.PinIO = bcm283x.GPIO34 // GPIO34
	SO_53  gpio.PinIO = bcm283x.GPIO15 // GPIO15
	SO_54  gpio.PinIO = bcm283x.GPIO35 // GPIO35
	SO_55  pin.Pin    = pin.GROUND     // GND
	SO_56  pin.Pin    = pin.GROUND     // GND
	SO_57  gpio.PinIO = bcm283x.GPIO16 // GPIO16
	SO_58  gpio.PinIO = bcm283x.GPIO36 // GPIO36
	SO_59  gpio.PinIO = bcm283x.GPIO17 // GPIO17
	SO_60  gpio.PinIO = bcm283x.GPIO37 // GPIO37
	SO_61  pin.Pin    = pin.GROUND     // GND
	SO_62  pin.Pin    = pin.GROUND     // GND
	SO_63  gpio.PinIO = bcm283x.GPIO18 // GPIO18
	SO_64  gpio.PinIO = bcm283x.GPIO38 // GPIO38
	SO_65  gpio.PinIO = bcm283x.GPIO19 // GPIO19
	SO_66  gpio.PinIO = bcm283x.GPIO39 // GPIO39
	SO_67  pin.Pin    = pin.GROUND     // GND
	SO_68  pin.Pin    = pin.GROUND     // GND
	SO_69  gpio.PinIO = bcm283x.GPIO20 // GPIO20
	SO_70  gpio.PinIO = bcm283x.GPIO40 // GPIO40
	SO_71  gpio.PinIO = bcm283x.GPIO21 // GPIO21
	SO_72  gpio.PinIO = bcm283x.GPIO41 // GPIO41
	SO_73  pin.Pin    = pin.GROUND     // GND
	SO_74  pin.Pin    = pin.GROUND     // GND
	SO_75  gpio.PinIO = bcm283x.GPIO22 // GPIO22
	SO_76  gpio.PinIO = bcm283x.GPIO42 // GPIO42
	SO_77  gpio.PinIO = bcm283x.GPIO23 // GPIO23
	SO_78  gpio.PinIO = bcm283x.GPIO43 // GPIO43
	SO_79  pin.Pin    = pin.GROUND     // GND
	SO_80  pin.Pin    = pin.GROUND     // GND
	SO_81  gpio.PinIO = bcm283x.GPIO24 // GPIO24
	SO_82  gpio.PinIO = bcm283x.GPIO44 // GPIO44
	SO_83  gpio.PinIO = bcm283x.GPIO25 // GPIO25
	SO_84  gpio.PinIO = bcm283x.GPIO45 // GPIO45
	SO_85  pin.Pin    = pin.GROUND     // GND
	SO_86  pin.Pin    = pin.GROUND     // GND
	SO_87  gpio.PinIO = bcm283x.GPIO26 // GPIO26
	SO_88  pin.Pin    = pin.INVALID    // HDMI_HPD_N_1V8, HDMI_HPD_N_1V8, GPIO46_1V8
	SO_89  gpio.PinIO = bcm283x.GPIO27 // GPIO27
	SO_90  pin.Pin    = pin.INVALID    // EMMC_EN_N_1V8, EMMC_EN_N_1V8, GPIO47_1V8
	SO_91  pin.Pin    = pin.GROUND     // GND
	SO_92  pin.Pin    = pin.GROUND     // GND
	SO_93  pin.Pin    = pin.INVALID    // DSI0_DN1
	SO_94  pin.Pin    = pin.INVALID    // DSI1_DP0
	SO_95  pin.Pin    = pin.INVALID    // DSI0_DP1
	SO_96  pin.Pin    = pin.INVALID    // DSI1_DN0
	SO_97  pin.Pin    = pin.GROUND     // GND
	SO_98  pin.Pin    = pin.GROUND     // GND
	SO_99  pin.Pin    = pin.INVALID    // DSI0_DN0
	SO_100 pin.Pin    = pin.INVALID    // DSI1_CP
	SO_101 pin.Pin    = pin.INVALID    // DSI0_DP0
	SO_102 pin.Pin    = pin.INVALID    // DSI1_CN
	SO_103 pin.Pin    = pin.GROUND     // GND
	SO_104 pin.Pin    = pin.GROUND     // GND
	SO_105 pin.Pin    = pin.INVALID    // DSI0_CN
	SO_106 pin.Pin    = pin.INVALID    // DSI1_DP3
	SO_107 pin.Pin    = pin.INVALID    // DSI0_CP
	SO_108 pin.Pin    = pin.INVALID    // DSI1_DN3
	SO_109 pin.Pin    = pin.GROUND     // GND
	SO_110 pin.Pin    = pin.GROUND     // GND
	SO_111 pin.Pin    = pin.INVALID    // HDMI_CLK_N
	SO_112 pin.Pin    = pin.INVALID    // DSI1_DP2
	SO_113 pin.Pin    = pin.INVALID    // HDMI_CLK_P
	SO_114 pin.Pin    = pin.INVALID    // DSI1_DN2
	SO_115 pin.Pin    = pin.GROUND     // GND
	SO_116 pin.Pin    = pin.GROUND     // GND
	SO_117 pin.Pin    = pin.INVALID    // HDMI_D0_N
	SO_118 pin.Pin    = pin.INVALID    // DSI1_DP1
	SO_119 pin.Pin    = pin.INVALID    // HDMI_D0_P
	SO_120 pin.Pin    = pin.INVALID    // DSI1_DN1
	SO_121 pin.Pin    = pin.GROUND     // GND
	SO_122 pin.Pin    = pin.GROUND     // GND
	SO_123 pin.Pin    = pin.INVALID    // HDMI_D1_N
	SO_124 pin.Pin    = pin.INVALID    // NC
	SO_125 pin.Pin    = pin.INVALID    // HDMI_D1_P
	SO_126 pin.Pin    = pin.INVALID    // NC
	SO_127 pin.Pin    = pin.GROUND     // GND
	SO_128 pin.Pin    = pin.INVALID    // NC
	SO_129 pin.Pin    = pin.INVALID    // HDMI_D2_N
	SO_130 pin.Pin    = pin.INVALID    // NC
	SO_131 pin.Pin    = pin.INVALID    // HDMI_D2_P
	SO_132 pin.Pin    = pin.INVALID    // NC
	SO_133 pin.Pin    = pin.GROUND     // GND
	SO_134 pin.Pin    = pin.GROUND     // GND
	SO_135 pin.Pin    = pin.INVALID    // CAM1_DP3
	SO_136 pin.Pin    = pin.INVALID    // CAM0_DP0
	SO_137 pin.Pin    = pin.INVALID    // CAM1_DN3
	SO_138 pin.Pin    = pin.INVALID    // CAM0_DN0
	SO_139 pin.Pin    = pin.GROUND     // GND
	SO_140 pin.Pin    = pin.GROUND     // GND
	SO_141 pin.Pin    = pin.INVALID    // CAM1_DP2
	SO_142 pin.Pin    = pin.INVALID    // CAM0_CP
	SO_143 pin.Pin    = pin.INVALID    // CAM1_DN2
	SO_144 pin.Pin    = pin.INVALID    // CAM0_CN
	SO_145 pin.Pin    = pin.GROUND     // GND
	SO_146 pin.Pin    = pin.GROUND     // GND
	SO_147 pin.Pin    = pin.INVALID    // CAM1_CP
	SO_148 pin.Pin    = pin.INVALID    // CAM0_DP1
	SO_149 pin.Pin    = pin.INVALID    // CAM1_CN
	SO_150 pin.Pin    = pin.INVALID    // CAM0_DN1
	SO_151 pin.Pin    = pin.GROUND     // GND
	SO_152 pin.Pin    = pin.GROUND     // GND
	SO_153 pin.Pin    = pin.INVALID    // CAM1_DP1
	SO_154 pin.Pin    = pin.INVALID    // NC
	SO_155 pin.Pin    = pin.INVALID    // CAM1_DN1
	SO_156 pin.Pin    = pin.INVALID    // NC
	SO_157 pin.Pin    = pin.GROUND     // GND
	SO_158 pin.Pin    = pin.INVALID    // NC
	SO_159 pin.Pin    = pin.INVALID    // CAM1_DP0
	SO_160 pin.Pin    = pin.INVALID    // NC
	SO_161 pin.Pin    = pin.INVALID    // CAM1_DN0
	SO_162 pin.Pin    = pin.INVALID    // NC
	SO_163 pin.Pin    = pin.GROUND     // GND
	SO_164 pin.Pin    = pin.GROUND     // GND
	SO_165 pin.Pin    = pin.INVALID    // USB_DP
	SO_166 pin.Pin    = pin.INVALID    // TVDAC
	SO_167 pin.Pin    = pin.INVALID    // USB_DM
	SO_168 pin.Pin    = pin.INVALID    // USB_OTGID
	SO_169 pin.Pin    = pin.GROUND     // GND
	SO_170 pin.Pin    = pin.GROUND     // GND
	SO_171 pin.Pin    = pin.INVALID    // HDMI_CEC
	SO_172 pin.Pin    = pin.INVALID    // VC_TRST_N
	SO_173 pin.Pin    = pin.INVALID    // HDMI_SDA
	SO_174 pin.Pin    = pin.INVALID    // VC_TDI
	SO_175 pin.Pin    = pin.INVALID    // HDMI_SCL
	SO_176 pin.Pin    = pin.INVALID    // VC_TMS
	SO_177 pin.Pin    = pin.INVALID    // RUN
	SO_178 pin.Pin    = pin.INVALID    // VC_TDO
	SO_179 pin.Pin    = pin.INVALID    // VDD_CORE (DO NOT CONNECT)
	SO_180 pin.Pin    = pin.INVALID    // VC_TCK
	SO_181 pin.Pin    = pin.GROUND     // GND
	SO_182 pin.Pin    = pin.GROUND     // GND
	SO_183 pin.Pin    = pin.V1_8       // 1V8
	SO_184 pin.Pin    = pin.V1_8       // 1V8
	SO_185 pin.Pin    = pin.V1_8       // 1V8
	SO_186 pin.Pin    = pin.V1_8       // 1V8
	SO_187 pin.Pin    = pin.GROUND     // GND
	SO_188 pin.Pin    = pin.GROUND     // GND
	SO_189 pin.Pin    = pin.DC_IN      // VDAC
	SO_190 pin.Pin    = pin.DC_IN      // VDAC
	SO_191 pin.Pin    = pin.V3_3       // 3V3
	SO_192 pin.Pin    = pin.V3_3       // 3V3
	SO_193 pin.Pin    = pin.V3_3       // 3V3
	SO_194 pin.Pin    = pin.V3_3       // 3V3
	SO_195 pin.Pin    = pin.GROUND     // GND
	SO_196 pin.Pin    = pin.GROUND     // GND
	SO_197 pin.Pin    = pin.DC_IN      // VBAT
	SO_198 pin.Pin    = pin.DC_IN      // VBAT
	SO_199 pin.Pin    = pin.DC_IN      // VBAT
	SO_200 pin.Pin    = pin.DC_IN      // VBAT
)

Pin as connected on the SODIMM header.

Documentation is https://www.raspberrypi.org/documentation/hardware/computemodule/datasheets/rpi_DATA_CM_1p0.pdf

There are some differences for CM3-Lite and CM1.

Functions

func Present 

func Present() bool

Present returns true if running on a Raspberry Pi board.

https://www.raspberrypi.org/

Types

This section is empty.

Source Files

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