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Difference between revisions of "Rock3/CM3/raspcm4io"

< Rock3‎ | CM3
Line 9: Line 9:
  
 
== Resource ==
 
== Resource ==
 +
 +
====<span id="gpio">General purpose input-output (GPIO) connector</span> ====
 +
 +
CM4 IO has a 40-pin expansion header. Each pin is distinguished by color.
 +
 +
{| class="wikitable" style="vertical-align:middle;"
 +
|- style="font-weight:bold; text-align:center;"
 +
! GPIO number
 +
! Function4
 +
! Function3
 +
! Function2
 +
! Function1
 +
! Pin#
 +
!
 +
! Pin#
 +
! Function1
 +
! Function2
 +
! Function3
 +
! Function4
 +
! GPIO number
 +
|-
 +
|
 +
|
 +
|
 +
|
 +
| +3.3V
 +
| style="background-color:#FF0;" | 1
 +
|
 +
| style="background-color:#F00;" | 2
 +
| +5.0V
 +
|
 +
|
 +
|
 +
|
 +
|-
 +
| 14
 +
| SPI0_MOSI_M0
 +
| I2C2_SDA_M0
 +
| PWM2_M1
 +
| GPIO0_B6
 +
| style="background-color:#008000; color:#FFF;" | 3
 +
|
 +
| style="background-color:#F00;" | 4
 +
| +5.0V
 +
|
 +
|
 +
|
 +
|
 +
|-
 +
| 13
 +
| SPI0_CLK_M0
 +
| I2C2_SCL_M0
 +
| PWM1_M1
 +
| GPIO0_B5
 +
| style="background-color:#008000; color:#FFF;" | 5
 +
|
 +
| style="background-color:#000; color:#FFF" | 6
 +
| GND
 +
|
 +
|
 +
|
 +
|
 +
|-
 +
| 125
 +
|
 +
| I2S1_SDI3_M1
 +
| SDMMC2_PWREN_M0
 +
| GPIO3_D5
 +
| style="background-color:#008000; color:#FFF;" | 7
 +
|
 +
| style="background-color:#008000; color:#FFF;" | 8
 +
| GPIO0_D1
 +
| style="background-color:#FFA500;" | UART2_TX_M0
 +
|
 +
|
 +
| 25
 +
|-
 +
|
 +
|
 +
|
 +
|
 +
| GND
 +
| style="background-color:#000; color:#FFF" | 9
 +
|
 +
| style="background-color:#008000; color:#FFF;" | 10
 +
| GPIO0_D0
 +
| style="background-color:#FFA500;" | UART2_RX_M0
 +
|
 +
|
 +
| 24
 +
|-
 +
| 23
 +
|
 +
| UART0_CTSn
 +
| PWM0_M1
 +
| GPIO0_C7
 +
| style="background-color:#008000; color:#FFF;" | 11
 +
|
 +
| style="background-color:#008000; color:#FFF;" | 12
 +
| GPIO3_C7
 +
| I2S1_SCLK_TX_M1
 +
|
 +
|
 +
| 119
 +
|-
 +
| 15
 +
|
 +
|
 +
| PWM0_M0
 +
| GPIO0_B7
 +
| style="background-color:#008000; color:#FFF;" | 13
 +
|
 +
| style="background-color:#000; color:#FFF" | 14
 +
| GND
 +
|
 +
|
 +
|
 +
|
 +
|-
 +
| 19
 +
|
 +
| PWM4
 +
| VOP_PWM_M0
 +
| GPIO0_C3
 +
| style="background-color:#008000; color:#FFF;" | 15
 +
|
 +
| style="background-color:#008000; color:#FFF;" | 16
 +
| GPIO3_D4
 +
| I2S1_SDI2_M1
 +
|
 +
|
 +
| 124
 +
|-
 +
|
 +
|
 +
|
 +
|
 +
| +3.3V
 +
| style="background-color:#FF0;" | 17
 +
|
 +
| style="background-color:#008000; color:#FFF;" | 18
 +
| GPIO3_D3
 +
| I2S1_SDI1_M1
 +
|
 +
|
 +
| 123
 +
|-
 +
| 138
 +
| I2S2_SDI_M1
 +
| SPI3_MOSI_M0
 +
| I2C4_SDA_M0
 +
| GPIO4_B2
 +
| style="background-color:#008000; color:#FFF;" | 19
 +
|
 +
| style="background-color:#000; color:#FFF" | 20
 +
| GND
 +
|
 +
|
 +
|
 +
|
 +
|-
 +
| 136
 +
|
 +
| SPI3_MISO_M0
 +
| I2S1_SDO1_M1
 +
| GPIO4_B0
 +
| style="background-color:#008000; color:#FFF;" | 21
 +
|
 +
| style="background-color:#008000; color:#FFF;" | 22
 +
| GPIO3_C6
 +
| I2S1_MCLK_M1
 +
|
 +
|
 +
| 118
 +
|-
 +
| 139
 +
| I2S2_SDO_M1
 +
| SPI3_CLK_M0
 +
| I2C4_SCL_M0
 +
| GPIO4_B3
 +
| style="background-color:#008000; color:#FFF;" | 23
 +
|
 +
| style="background-color:#008000; color:#FFF;" | 24
 +
| GPIO4_A6
 +
| I2S1_SCLK_RX_M1
 +
| SPI3_CS0_M0
 +
|
 +
| 134
 +
|-
 +
|
 +
|
 +
|
 +
|
 +
| GND
 +
| style="background-color:#000; color:#FFF" | 25
 +
|
 +
| style="background-color:#008000; color:#FFF;" | 26
 +
| SARADC_IN3
 +
|
 +
|
 +
|
 +
|
 +
|-
 +
| 140
 +
|
 +
|
 +
| I2C2_SDA_M1
 +
| GPIO4_B4
 +
| style="background-color:#00F; color:#FFF;" | 27
 +
|
 +
| style="background-color:#00F; color:#FFF;" | 28
 +
| GPIO4_B5
 +
| I2S1_SDO3_M1
 +
| I2C2_SCL_M1
 +
|
 +
| 141
 +
|-
 +
| 137
 +
|
 +
| I2S1_SDO2_M1
 +
| ISP_PRELIGHT_TRIG
 +
| GPIO4_B1
 +
| style="background-color:#008000; color:#FFF;" | 29
 +
|
 +
| style="background-color:#000; color:#FFF" | 30
 +
| GND
 +
|
 +
|
 +
|
 +
|
 +
|-
 +
| 21
 +
|
 +
| SPI0_MISO_M0
 +
| PWM6
 +
| GPIO0_C5
 +
| style="background-color:#008000; color:#FFF;" | 31
 +
|
 +
| style="background-color:#008000; color:#FFF;" | 32
 +
| GPIO4_C0
 +
| PWM11_IR_M1
 +
|
 +
|
 +
| 144
 +
|-
 +
| 22
 +
|
 +
| SPI0_CS0_M0
 +
| PWM7_IR
 +
| GPIO0_C6
 +
| style="background-color:#008000; color:#FFF;" | 33
 +
|
 +
| style="background-color:#000; color:#FFF" | 34
 +
| GND
 +
|
 +
|
 +
|
 +
|
 +
|-
 +
| 120
 +
|
 +
|
 +
| I2S1_LRCK_TX_M1
 +
| GPIO3_D0
 +
| style="background-color:#008000; color:#FFF;" | 35
 +
|
 +
| style="background-color:#008000; color:#FFF;" | 36
 +
| GPIO4_A7
 +
| I2S1_LRCK_RX_M1
 +
| SPI3_CS1_M0
 +
|
 +
| 135
 +
|-
 +
| 18
 +
|
 +
|
 +
| PWM3_IR
 +
| GPIO0_C2
 +
| style="background-color:#008000; color:#FFF;" | 37
 +
|
 +
| style="background-color:#008000; color:#FFF;" | 38
 +
| GPIO3_D2
 +
| I2S1_SDI0_M1
 +
|
 +
|
 +
| 122
 +
|-
 +
|
 +
|
 +
|
 +
|
 +
| GND
 +
| style="background-color:#000; color:#FFF" | 39
 +
|
 +
| style="background-color:#008000; color:#FFF;" | 40
 +
| GPIO3_D1
 +
| I2S1_SDO0_M1
 +
|
 +
|
 +
| 121
 +
|}
 +
 +
==== More details about 40-pin Header ====
 +
 +
* Pins marked with color orange are designed for debug console.
 +
* PWM:x7,PWM0/PWM1/PWM2/PWM3/PWM6/PWM7/PWM11
 +
* SPI:X2,SPI0/SPI3
 +
* I2C:X2,I2C2/I2C4
 +
* UART:X2,UART0/UART2
 +
* ADC:X1, SARADC_IN3
 +
* I2S:X2, I2S1/I2S2
 +
 +
=== IO Voltage ===
 +
 +
RK3566 have three IO voltages, 1.8V/3.3V. For CM4 IO, the high level voltage of GPIO pin on 40-PIN HEADER is 3.3V.
 +
 +
<pre>
 +
| GPIO      | Voltage Level | Tolerance |
 +
| ---------- | ------------- | --------- |
 +
| SARADC_IN3    | 1.8V          | 1.98V    |
 +
</pre>
 +
 +
=== GPIO number ===
 +
 +
Rockchip RK3566 GPIO has 5 banks, GPIO0 to GPIO4, each bank has 32pins, naming as below:
 +
 +
GPIO0_A0 ~ A7
 +
GPIO0_B0 ~ B7
 +
GPIO0_C0 ~ C7
 +
GPIO0_D0 ~ D7
 +
   
 +
GPIO1_A0 ~ A7
 +
....
 +
GPIO1_D0 ~ D7
 +
 +
The GPIO number can be calculated as below, take GPIO4_D1 (PIN26 on 4-0PIN HEADER) as an example:
 +
 +
GPIO4_D1 = 4*32 + 3*8 + 1 = 153
 +
(A=0, B=1, C=2, D=3)
 +
 +
To set GPIO4_D1 output
 +
 +
cd /sys/class/gpio
 +
echo 153 > export
 +
cd gpio153
 +
echo out > direction
 +
echo 1 > value    # output high
 +
echo 0 > value    # output low

Revision as of 03:09, 12 October 2021

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    ROCK 3 >  Compute Module 3 >  Raspberry Pi CM4 IO Board

Getting Started

Status

Resource

General purpose input-output (GPIO) connector

CM4 IO has a 40-pin expansion header. Each pin is distinguished by color.

GPIO number Function4 Function3 Function2 Function1 Pin# Pin# Function1 Function2 Function3 Function4 GPIO number
+3.3V 1 2 +5.0V
14 SPI0_MOSI_M0 I2C2_SDA_M0 PWM2_M1 GPIO0_B6 3 4 +5.0V
13 SPI0_CLK_M0 I2C2_SCL_M0 PWM1_M1 GPIO0_B5 5 6 GND
125 I2S1_SDI3_M1 SDMMC2_PWREN_M0 GPIO3_D5 7 8 GPIO0_D1 UART2_TX_M0 25
GND 9 10 GPIO0_D0 UART2_RX_M0 24
23 UART0_CTSn PWM0_M1 GPIO0_C7 11 12 GPIO3_C7 I2S1_SCLK_TX_M1 119
15 PWM0_M0 GPIO0_B7 13 14 GND
19 PWM4 VOP_PWM_M0 GPIO0_C3 15 16 GPIO3_D4 I2S1_SDI2_M1 124
+3.3V 17 18 GPIO3_D3 I2S1_SDI1_M1 123
138 I2S2_SDI_M1 SPI3_MOSI_M0 I2C4_SDA_M0 GPIO4_B2 19 20 GND
136 SPI3_MISO_M0 I2S1_SDO1_M1 GPIO4_B0 21 22 GPIO3_C6 I2S1_MCLK_M1 118
139 I2S2_SDO_M1 SPI3_CLK_M0 I2C4_SCL_M0 GPIO4_B3 23 24 GPIO4_A6 I2S1_SCLK_RX_M1 SPI3_CS0_M0 134
GND 25 26 SARADC_IN3
140 I2C2_SDA_M1 GPIO4_B4 27 28 GPIO4_B5 I2S1_SDO3_M1 I2C2_SCL_M1 141
137 I2S1_SDO2_M1 ISP_PRELIGHT_TRIG GPIO4_B1 29 30 GND
21 SPI0_MISO_M0 PWM6 GPIO0_C5 31 32 GPIO4_C0 PWM11_IR_M1 144
22 SPI0_CS0_M0 PWM7_IR GPIO0_C6 33 34 GND
120 I2S1_LRCK_TX_M1 GPIO3_D0 35 36 GPIO4_A7 I2S1_LRCK_RX_M1 SPI3_CS1_M0 135
18 PWM3_IR GPIO0_C2 37 38 GPIO3_D2 I2S1_SDI0_M1 122
GND 39 40 GPIO3_D1 I2S1_SDO0_M1 121

More details about 40-pin Header

  • Pins marked with color orange are designed for debug console.
  • PWM:x7,PWM0/PWM1/PWM2/PWM3/PWM6/PWM7/PWM11
  • SPI:X2,SPI0/SPI3
  • I2C:X2,I2C2/I2C4
  • UART:X2,UART0/UART2
  • ADC:X1, SARADC_IN3
  • I2S:X2, I2S1/I2S2

IO Voltage

RK3566 have three IO voltages, 1.8V/3.3V. For CM4 IO, the high level voltage of GPIO pin on 40-PIN HEADER is 3.3V. 

| GPIO       | Voltage Level | Tolerance |
| ---------- | ------------- | --------- |
| SARADC_IN3    | 1.8V          | 1.98V     |

GPIO number

Rockchip RK3566 GPIO has 5 banks, GPIO0 to GPIO4, each bank has 32pins, naming as below: 

GPIO0_A0 ~ A7 
GPIO0_B0 ~ B7
GPIO0_C0 ~ C7
GPIO0_D0 ~ D7
   
GPIO1_A0 ~ A7
....
GPIO1_D0 ~ D7

The GPIO number can be calculated as below, take GPIO4_D1 (PIN26 on 4-0PIN HEADER) as an example: 

GPIO4_D1 = 4*32 + 3*8 + 1 = 153
(A=0, B=1, C=2, D=3)

To set GPIO4_D1 output 

cd /sys/class/gpio
echo 153 > export
cd gpio153
echo out > direction
echo 1 > value     # output high
echo 0 > value     # output low
Retrieved from "https://wiki.radxa.com/mw/index.php?title=Rock3/CM3/raspcm4io&oldid=6611"