Stephen: /* More details about 40-pin Header */

2021-08-23T11:22:18Z

‎More details about 40-pin Header

Stephen: /* IO Voltage */

2021-08-23T11:21:28Z

‎IO Voltage

Stephen: /* General purpose input-output (GPIO) connector */

2021-08-23T11:16:50Z

‎General purpose input-output (GPIO) connector

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Stephen: Created page with "{{rock3_header}} {{Languages|rock3/hardware/gpio}} ROCK 3 > Hardware > GPIO == General purpose..."

2021-08-23T11:01:44Z

Created page with "{{rock3_header}} {{Languages|rock3/hardware/gpio}} ROCK 3 > Hardware > GPIO == <span id="gpio">General purpose..."

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{{rock3_header}}
{{Languages|rock3/hardware/gpio}}

[[rock3 | ROCK 3]] > [[rock3/hardware | Hardware]] > [[rock3/hardware/gpio | GPIO]]

== <span id="gpio">General purpose input-output (GPIO) connector</span> ==

ROCK 3 has a 40-pin expansion header. Each pin is distinguished by color.

<div class="col-md-12 ">
<div class="panel panel-midnight-white">
<div class="panel-heading"><h3>Hardware V1.2</h3></div>
<div class="panel-body">

{| class="wikitable"
|-
! style="text-align:center; vertical-align:middle; font-weight:bold;" | GPIO number
! Function4
! style="vertical-align:middle;" | Function3
! style="vertical-align:middle;" | Function2
! style="vertical-align:middle;" | Function1
! style="vertical-align:middle;" | Pin#
! style="vertical-align:middle;" |
! style="vertical-align:middle;" | Pin#
! style="vertical-align:middle;" | Function1
! style="vertical-align:middle;" | Function2
! style="vertical-align:middle;" | Function3
! Function4
! style="vertical-align:middle;" | GPIO number
|-
| style="vertical-align:middle;" |
|
| style="vertical-align:middle;" |
| style="vertical-align:middle;" |
| style="vertical-align:middle;" | +3.3V
| style="vertical-align:middle; background-color:#FF0;" | 1
| style="vertical-align:middle;" |
| style="vertical-align:middle; background-color:#F00;" | 2
| style="vertical-align:middle;" | +5.0V
| style="vertical-align:middle;" |
| style="vertical-align:middle;" |
|
| style="vertical-align:middle;" |
|-
| style="vertical-align:middle;" | 71
| CAN1_RX_M0
| style="vertical-align:middle;" | UART3_RX_M0
| style="vertical-align:middle;" | I2C3_SDA_M0
| style="vertical-align:middle;" | GPIO1_A0
| style="vertical-align:middle; background-color:#008000; color:#FFF;" | 3
| style="vertical-align:middle;" |
| style="vertical-align:middle; background-color:#F00;" | 4
| style="vertical-align:middle;" | +5.0V
| style="vertical-align:middle;" |
| style="vertical-align:middle;" |
|
| style="vertical-align:middle;" |
|-
| style="vertical-align:middle;" | 72
| CAN1_TX_M0
| style="vertical-align:middle;" | UART3_TX_M0
| style="vertical-align:middle;" | I2C3_SCL_M0
| style="vertical-align:middle;" | GPIO1_A1
| style="vertical-align:middle; background-color:#008000; color:#FFF;" | 5
| style="vertical-align:middle;" |
| style="vertical-align:middle; color:#FFF;" | 6
| style="vertical-align:middle;" | GND
| style="vertical-align:middle;" |
| style="vertical-align:middle;" |
|
| style="vertical-align:middle;" |
|-
| style="vertical-align:middle;" | 13
|
| style="vertical-align:middle;" | UART3_TX_M1
| style="vertical-align:middle;" | PWM12_M0
| style="vertical-align:middle;" | GPIO3_B7
| style="vertical-align:middle; background-color:#008000; color:#FFF;" | 7
| style="vertical-align:middle;" |
| style="vertical-align:middle; background-color:#008000; color:#FFF;" | 8
| style="vertical-align:middle;" | GPIO0_D1
| style="vertical-align:middle; background-color:#FFA500;" | UART2_TXD
| style="vertical-align:middle;" |
|
| style="vertical-align:middle;" | 148
|-
| style="vertical-align:middle;" |
|
| style="vertical-align:middle;" |
| style="vertical-align:middle;" |
| style="vertical-align:middle;" | GND
| style="vertical-align:middle; color:#FFF;" | 9
| style="vertical-align:middle;" |
| style="vertical-align:middle; background-color:#008000; color:#FFF;" | 10
| style="vertical-align:middle;" | GPIO0_D0
| style="vertical-align:middle; background-color:#FFA500;" | UART2_RXD
| style="vertical-align:middle;" |
|
| style="vertical-align:middle;" | 147
|-
| style="vertical-align:middle;" | 146
|
| style="vertical-align:middle;" | UART7_TX_M1
| style="vertical-align:middle;" | PWM14_M0
| style="vertical-align:middle;" | GPIO3_C4
| style="vertical-align:middle; background-color:#008000; color:#FFF;" | 11
| style="vertical-align:middle;" |
| style="vertical-align:middle; background-color:#008000; color:#FFF;" | 12
| style="vertical-align:middle;" | GPIO3_A3
| style="vertical-align:middle;" |
| style="vertical-align:middle;" |
|
| style="vertical-align:middle;" | 9
|-
| style="vertical-align:middle;" | 150
|
| style="vertical-align:middle;" | UART7_RX_M1
| style="vertical-align:middle;" | PWM15_IR_M0
| style="vertical-align:middle;" | GPIO3_C5
| style="vertical-align:middle; background-color:#008000; color:#FFF;" | 13
| style="vertical-align:middle;" |
| style="vertical-align:middle; color:#FFF;" | 14
| style="vertical-align:middle;" | GND
| style="vertical-align:middle;" |
| style="vertical-align:middle;" |
|
| style="vertical-align:middle;" |
|-
| style="vertical-align:middle;" | 149
|
| style="vertical-align:middle;" | UART0_RX
| style="vertical-align:middle;" | PWM1_M0
| style="vertical-align:middle;" | GPIO0_C0
| style="vertical-align:middle; background-color:#008000; color:#FFF;" | 15
| style="vertical-align:middle;" |
| style="vertical-align:middle; background-color:#008000; color:#FFF;" | 16
| style="vertical-align:middle;" | GPIO3_A1
| style="vertical-align:middle;" | SPI1_CS0_M1
| style="vertical-align:middle;" |
|
| style="vertical-align:middle;" | 8
|-
| style="vertical-align:middle;" |
|
| style="vertical-align:middle;" | UART0_TX
| style="vertical-align:middle;" | PWM2_M0
| style="vertical-align:middle;" | GPIO0_C1
| style="vertical-align:middle; background-color:#FF0;" | 17
| style="vertical-align:middle;" |
| style="vertical-align:middle; background-color:#008000; color:#FFF;" | 18
| style="vertical-align:middle;" | GPIO3_B2
| style="vertical-align:middle;" | UART4_TX_M1
| style="vertical-align:middle;" | PWM9_M0
|
| style="vertical-align:middle;" | 70
|-
| style="vertical-align:middle;" | 40
| CAN1_TX_M1
| style="vertical-align:middle;" | SPI3_MOSI_M1
| style="vertical-align:middle;" | PWM15_IR_M1
| style="vertical-align:middle;" | GPIO4_C3
| style="vertical-align:middle; background-color:#008000; color:#FFF;" | 19
| style="vertical-align:middle;" |
| style="vertical-align:middle; color:#FFF;" | 20
| style="vertical-align:middle;" | GND
| style="vertical-align:middle;" |
| style="vertical-align:middle;" |
|
| style="vertical-align:middle;" |
|-
| style="vertical-align:middle;" | 39
| UART9_TX_M1
| style="vertical-align:middle;" | SPI3_MISO_M1
| style="vertical-align:middle;" | PWM12_M1
| style="vertical-align:middle;" | GPIO4_C5
| style="vertical-align:middle; background-color:#008000; color:#FFF;" | 21
| style="vertical-align:middle;" |
| style="vertical-align:middle; background-color:#008000; color:#FFF;" | 22
| style="vertical-align:middle;" | ADC_IN5
| style="vertical-align:middle;" |
| style="vertical-align:middle;" |
|
| style="vertical-align:middle;" | 124
|-
| style="vertical-align:middle;" | 41
| CAN1_TX_M1
| style="vertical-align:middle;" | SPI3_CLK_M1
| style="vertical-align:middle;" | PWM14_M1
| style="vertical-align:middle;" | GPIO4_C2
| style="vertical-align:middle; background-color:#008000; color:#FFF;" | 23
| style="vertical-align:middle;" |
| style="vertical-align:middle; background-color:#008000; color:#FFF;" | 24
| style="vertical-align:middle;" | GPIO4_C6
| style="vertical-align:middle;" | PWM13_M1
| style="vertical-align:middle;" | SPI3_CS0_M1
| UART9_RX_M1
| style="vertical-align:middle;" | 42
|-
| style="vertical-align:middle;" |
|
| style="vertical-align:middle;" |
| style="vertical-align:middle;" |
| style="vertical-align:middle;" | GND
| style="vertical-align:middle; color:#FFF;" | 25
| style="vertical-align:middle;" |
| style="vertical-align:middle; background-color:#008000; color:#FFF;" | 26
| style="vertical-align:middle;" | GPIO4_D1
| style="vertical-align:middle;" | SPI3_CS1_M1
| style="vertical-align:middle;" |
|
| style="vertical-align:middle;" |
|-
| style="vertical-align:middle;" | 64
| PWM2_M1
| style="vertical-align:middle;" | SPI0_MOSI_M0
| style="vertical-align:middle;" | I2C2_SDA_M0
| style="vertical-align:middle;" | GPIO0_B6
| style="vertical-align:middle; background-color:#00F; color:#FFF;" | 27
| style="vertical-align:middle;" |
| style="vertical-align:middle; background-color:#00F; color:#FFF;" | 28
| style="vertical-align:middle;" | GPIO0_B5
| style="vertical-align:middle;" | I2C2_CLK_M0
| style="vertical-align:middle;" | SPI0_CLK_M0
| PWM1_M1
| style="vertical-align:middle;" | 65
|-
| style="vertical-align:middle;" | 74
|
| style="vertical-align:middle;" | UART8_TX_M1
| style="vertical-align:middle;" | SPI2_MISO_M1
| style="vertical-align:middle;" | GPIO2_D7
| style="vertical-align:middle; background-color:#008000; color:#FFF;" | 29
| style="vertical-align:middle;" |
| style="vertical-align:middle; color:#FFF;" | 30
| style="vertical-align:middle;" | GND
| style="vertical-align:middle;" |
| style="vertical-align:middle;" |
|
| style="vertical-align:middle;" |
|-
| style="vertical-align:middle;" | 73
|
| style="vertical-align:middle;" | UART8_RX_M1
| style="vertical-align:middle;" | SPI2_CLK_M1
| style="vertical-align:middle;" | GPIO3_A0
| style="vertical-align:middle; background-color:#008000; color:#FFF;" | 31
| style="vertical-align:middle;" |
| style="vertical-align:middle; background-color:#008000; color:#FFF;" | 32
| style="vertical-align:middle;" | GPIO3_C2
| style="vertical-align:middle;" | SPI1_MISO_M1
| style="vertical-align:middle;" | UART5_TX_M1
|
| style="vertical-align:middle;" | 125
|-
| style="vertical-align:middle;" | 157
|
| style="vertical-align:middle;" | UART5_RX_M1
| style="vertical-align:middle;" | SPI1_CLK_M1
| style="vertical-align:middle;" | GPIO3_C3
| style="vertical-align:middle; background-color:#008000; color:#FFF;" | 33
| style="vertical-align:middle;" |
| style="vertical-align:middle; color:#FFF;" | 34
| style="vertical-align:middle;" | GND
| style="vertical-align:middle;" |
| style="vertical-align:middle;" |
|
| style="vertical-align:middle;" |
|-
| style="vertical-align:middle;" | 68
|
| style="vertical-align:middle;" |
| style="vertical-align:middle;" |
| style="vertical-align:middle;" | GPIO3_A4
| style="vertical-align:middle; background-color:#008000; color:#FFF;" | 35
| style="vertical-align:middle;" |
| style="vertical-align:middle; background-color:#008000; color:#FFF;" | 36
| style="vertical-align:middle;" | GPIO3_A2
| style="vertical-align:middle;" |
| style="vertical-align:middle;" |
|
| style="vertical-align:middle;" | 66
|-
| style="vertical-align:middle;" | 126
|
| style="vertical-align:middle;" | UART3_RX_M1
| style="vertical-align:middle;" | PWM13_M0
| style="vertical-align:middle;" | GPIO3_C0
| style="vertical-align:middle; background-color:#008000; color:#FFF;" | 37
| style="vertical-align:middle;" |
| style="vertical-align:middle; background-color:#008000; color:#FFF;" | 38
| style="vertical-align:middle;" | GPIO3_A6
| style="vertical-align:middle;" |
| style="vertical-align:middle;" |
|
| style="vertical-align:middle;" | 67
|-
| style="vertical-align:middle;" |
|
| style="vertical-align:middle;" |
| style="vertical-align:middle;" |
| style="vertical-align:middle;" | GND
| style="vertical-align:middle; color:#FFF;" | 39
| style="vertical-align:middle;" |
| style="vertical-align:middle; background-color:#008000; color:#FFF;" | 40
| style="vertical-align:middle;" | GPIO3_A5
| style="vertical-align:middle;" |
| style="vertical-align:middle;" |
|
| style="vertical-align:middle;" | 34
|}

</div>
</div>
</div>

<div class="clearfix"></div>

==== More details about 40-pin Header ====

* Pins marked with color orange are designed for debug console.
* PWM; x6, PWM1/PWM2/PWM12/PWM13/PWM14/PWM15
* SPI: x1, SPI3
* I2C: x2, I2C2/I2C3
* UART: x2, UART0/UART3/UART5/UART7/UART9
* ADC: x1, ADC_IN5
* CAN: x1, CAN1

=== IO Voltage ===

RK3568 have three IO voltages, 1.8V/3.0V/3.3V. For ROCK Pi N10, below is the default voltage:

<pre>
| GPIO | Voltage Level | Tolerance |
| ---------- | ------------- | --------- |
| GPIO3_C0 | 3.3V | 3.465V |
| ADC_IN0 | 1.8V | 1.98V |
</pre>

=== GPIO number ===

Rockchip RK3568 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

For Rockchip 4.19 kernel, 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

@@ Line 322: / Line 322: @@
 * SPI: x1, SPI3
 * I2C: x2, I2C2/I2C3
-* UART: x2, UART0/UART3/UART5/UART7/UART9
+* UART: x5, UART0/UART3/UART5/UART7/UART9
 * ADC: x1, ADC_IN5
 * CAN: x1, CAN1

@@ Line 328: / Line 328: @@
 === IO Voltage ===
-RK3568 have three IO voltages, 1.8V/3.0V/3.3V. For ROCK Pi N10, below is the default voltage:
+RK3568 have three IO voltages, 1.8V/3.3V. For ROCK 3, the high level voltage of GPIO pin on 40-PIN HEADER is 3.3V.
 <pre>
 | GPIO       | Voltage Level | Tolerance |
 | ---------- | ------------- | --------- |
-| GPIO3_C0   | 3.3V          | 3.465V    |
+| GPIO3_C0   | 3.3V          | 3.63V     |
-| ADC_IN0    | 1.8V          | 1.98V     |
+| ADC_IN5    | 1.8V          | 1.98V     |
 </pre>

Rock3/hardware/gpio - Revision history

Stephen: /* More details about 40-pin Header */

Stephen: /* IO Voltage */

Stephen: /* General purpose input-output (GPIO) connector */

Stephen: Created page with "{{rock3_header}} {{Languages|rock3/hardware/gpio}} ROCK 3 > Hardware > GPIO == General purpose..."