Difference between revisions of "Rock3/CM3/e23/GPIO"

Revision as of 02:58, 27 January 2022

    ROCK 3 >  ROCK 3 Compute Module >  Radxa E23 >  GPIO

ROCK E23 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
32		I2C3_SDA_M0	UART3_RX_M0	GPIO1_A0	3	4	+5.0V
33		UART3_TX_M0	I2C3_SCL_M0	GPIO1_A1	5	6	GND
21		SPI0_MISO_M0	PWM6	GPIO0_C5	7	8	GPIO0_D1	UART2_TX_M0			25
				GND	9	10	GPIO0_D0	UART2_RX_M0			24
97			SPI1_CS0_M1	GPIO3_A1	11	12	GPIO3_B4	I2C5_SDA_M0			108
20	UART0_RTSn	PWM5	SPI0_CS1_M0	GPIO0_C4	13	14	GND
22		SPI0_CS0_M0	PWM7_IR	GPIO0_C6	15	16	USB_OTG0_DM
				NC	17	18	USB_OTG0_DP
138	I2C4_SDA_M0	I2S2_SDI_M1	SPI3_MOSI_M0	GPIO4_B2	19	20	GND
136		I2S1_SDO1_M1	SPI3_MISO_M0	GPIO4_B0	21	22	GPIO2_C6	UART8_RX_M0	SPI1_CS1_M0		86
139	I2S2_SDO_M1	I2C4_SCL_M0	SPI3_CLK_M0	GPIO4_B3	23	24	GPIO4_A6	SPI3_CS0_M0	I2S1_SCLK_RX_M1		134
				GND	25	26	GPIO4_A7	SPI3_CS1_M0	I2S1_LRCK_RX_M1		135
14	PWM2_M1	I2C2_SDA_M0	SPI0_MOSI_M0	GPIO0_B6	27	28	GPIO0_B5	SPI0_CLK_M0	I2C2_SCL_M0	PWM1_M1	13
113		SPI1_MOSI_M1	I2S1_SDO2_M2	GPIO3_C1	29	30	GND
114	I2S1_SDO3_M2	SPI1_MISO_M1	UART5_TX_M1	GPIO3_C2	31	32	GPIO0_C3	PWM4			19
15			PWM0_M0	GPIO0_B7	33	34	GND
29				GPIO0_D5	35	36	GPIO0_B4	I2C1_SDA			12
30				GPIO0_D6	37	38	GPIO0_C1	PWM2_M0	UART0_TX		17
				GND	39	40	GPIO0_B3	I2C1_SCL			11

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 4: / Line 4: @@
      [[rock3 | ROCK 3]] > [[rock3/CM3 | ROCK 3 Compute Module]] > [[rock3/CM3/radxae23 | Radxa E23]] > [[rock3/CM3/radxae23/GPIO | GPIO]]
-Radxa E23 has one 40-pin expansion header.
+== <span id="gpio">General purpose input-output (GPIO) connector</span> ==
-{{rock e23_header}}
+ROCK E23 has a 40-pin expansion header. Each pin is distinguished by color.
-{{Languages|rock e23/hardware/gpio}}
 <div class="col-md-12 ">
      <div class="panel panel-midnight-white">
@@ Line 305: / Line 303: @@
 |
 | style="background-color:#008000; color:#FFF;" | 40
+| GPIO0_B3
 | I2C1_SCL
-|
 |
 |
@@ Line 318: / Line 316: @@
 <div class="clearfix"></div>
-#### More details about 40-pin Header In V1.0
+==== More details about 40-pin Header In V1.0 ====
- Pins marked with color orange are designed for debug console.
- PWM; x7;PWM0/PWM1/PWM2/PWM4/PWM5/PWM6/PWM7/
- SPI:SPI0/SPI1/SPI3/
- I2C: I2C1/I2C2/I2C3/I2C4/I2C5
- UART: UART0/UART2/UART3/UART5/UART8
+* Pins marked with color orange are designed for debug console.
+* PWM; x7;PWM0/PWM1/PWM2/PWM4/PWM5/PWM6/PWM7/
+* SPI:x3;SPI0/SPI1/SPI3/
+* I2C: x5;I2C1/I2C2/I2C3/I2C4/I2C5
+* UART: x5;UART0/UART2/UART3/UART5/UART8
 === GPIO number ===