How to use GPIO RK3588 - Revision history

Zhihao.zhu at 00:59, 27 April 2025

2025-04-27T00:59:24Z

Bo.xiao at 08:55, 21 March 2025

2025-03-21T08:55:54Z

Bo.xiao at 08:53, 21 March 2025

2025-03-21T08:53:21Z

Bo.xiao at 06:19, 21 March 2025

2025-03-21T06:19:35Z

Yanwei.cao at 02:19, 20 August 2024

2024-08-20T02:19:19Z

Bo.xiao at 09:42, 28 March 2024

2024-03-28T09:42:53Z

Bo.xiao at 02:01, 28 March 2024

2024-03-28T02:01:30Z

Yunjin.jiang: Created page with " = Configuration = The RK3588 bank/bit notation for GPIOs must be formed as "GPIO_" The numeric value of GPIO is calculated as foll..."

2023-06-13T02:39:23Z

Created page with " = Configuration = The RK3588 bank/bit notation for GPIOs must be formed as "GPIO<GPIO_bank>_<gpio_bit>" The numeric value of GPIO is calculated as foll..."

New page

= Configuration =

The RK3588 bank/bit notation for GPIOs must be formed as "GPIO<GPIO_bank>_<gpio_bit>" 

The numeric value of GPIO is calculated as follows:
<pre>32 x (gpio_bank) + gpio_bit
</pre>

gpio_bit : A0～A7 0-7 B0～B7 8-15 C0～C7 16-23 D0～D7 24-31

E.g. GPIO3_A0 becomes 96

== ROM-6881 ==

{| border="1" cellpadding="1" cellspacing="1"
|-
| GPIO Number
| GPIO formed
| Numeric Representation
|-
| GPIO0
| Ext-GPIO0 P00
| 493
|-
| GPIO1
| Ext-GPIO0 P01
| 494
|-
| GPIO2
| Ext-GPIO0 P02
| 495
|-
| GPIO3
| Ext-GPIO0 P03
| 496
|-
| GPIO4
| Ext-GPIO0 P04
| 497
|-
| GPIO5
| GPIO4_B5
| 141
|-
| GPIO6
| Ext-GPIO0 P05
| 498
|-
| GPIO7
| Ext-GPIO0 P06
| 499
|-
| GPIO8
| Ext-GPIO0 P07
| 500
|-
| GPIO9
| GPIO4_A0
| 128
|-
| GPIO10
| GPIO3_C0
| 112
|-
| GPIO11
| GPIO3_C1
| 113
|}

= Test =

Here we take GPIO0 of ROM-6881 as an example.

Export GPIO then you can use control GPIO from userr space through sysfs

Export GPIO0
<pre># echo 493 > /sys/class/gpio/export
</pre>

Set GPIO direction to in/out
<pre># echo "out" > /sys/class/gpio/gpio493/direction
</pre>

Set GPIO value 0/1 if GPIO pin define is output
<pre># echo 1 > /sys/class/gpio/gpio493/value
</pre>

Used as IRQ signal

Note:You have to configure GPIO to input
<pre># echo "rising" > /sys/class/gpio/gpio493/edge
</pre>

*rising: Trigger on rising edge
*falling: Trigger on falling edge
*both: Trigger on both edges
*none: Disable interrupt on both edges

Unexport GPIO0
<pre># echo 493 > /sys/class/gpio/unexport
</pre>

'''Test'''

GPIO0 and GPIO1 are taken as an example:

*Connect GPIO0 and GPIO1
*Export GPIO0 and GPIO1
<pre># echo 493 > /sys/class/gpio/export
# echo 494 > /sys/class/gpio/export
</pre>

*Set GPIO0 to output
<pre># echo "out" > /sys/class/gpio/gpio493/direction
</pre>

*Set GPIO2 to input
<pre># echo "in" > /sys/class/gpio/gpio494/direction
</pre>

*Change GPIO0 to 1 and read GPIO1 value
<pre># echo 1 > /sys/class/gpio/gpio493/value
# cat /sys/class/gpio/gpio494/value
1
</pre>

*Change GPIO0 to 0 and read GPIO1 value
<pre># echo 0 > /sys/class/gpio/gpio493/value
# cat /sys/class/gpio/gpio494/value
0</pre>

@@ Line 130: / Line 130: @@
 |}
-== ASR-A501 ==
+== ASR-A501 (RM01/RM02)==
 {| border="1" cellpadding="1" cellspacing="1"

@@ Line 12: / Line 12: @@
 E.g. GPIO3_A0&nbsp;becomes 96
 == ROM-6881 ==
-'''V130:'''
+'''V130 SDK:'''
 {| border="1" cellpadding="1" cellspacing="1"
@@ Line 72: / Line 73: @@
 |}
-'''V106:'''
+'''V106 SDK:'''
 {| border="1" cellpadding="1" cellspacing="1"

@@ Line 140: / Line 140: @@
 | Numeric Representation
 |-
-| GPIO0
+| DI1
 | Ext-GPIO0 P00
 | 501
 |-
-| GPIO1
+| DI2
 | Ext-GPIO0 P01
 | 502
 |-
-| GPIO2
+| DI3
 | Ext-GPIO0 P02
 | 503
 |-
-| GPIO3
+| DI4
 | Ext-GPIO0 P03
 | 504
 |-
-| GPIO4
+| DO1
 | Ext-GPIO0 P04
 | 505
 |-
-| GPIO5
+| DO2
 | Ext-GPIO0 P05
 | 506
 |-
-| GPIO6
+| DO3
 | Ext-GPIO0 P06
 | 507
 |-
-| GPIO7
+| DO4
 | Ext-GPIO0 P07
 | 508

@@ Line 128: / Line 128: @@
 | GPIO3_C1
 | 113
 |}