Difference between revisions of "Rock3/hardware/rock3a-gpio"

Revision as of 13:07, 6 February 2022

    ROCK 3 >  Hardware >  ROCK 3A GPIO

General purpose input-output (GPIO) connector

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

Hardware V1.2

GPIO number	Function4	Function3	Function2	Function1	Pin#	Pin#	Function1	Function2	Function3	Function4	GPIO number
				+3.3V	1	2	+5.0V
32	CAN1_RX_M0	UART3_RX_M0	I2C3_SDA_M0	GPIO1_A0	3	4	+5.0V
33	CAN1_TX_M0	UART3_TX_M0	I2C3_SCL_M0	GPIO1_A1	5	6	GND
111		UART3_TX_M1	PWM12_M0	GPIO3_B7	7	8	GPIO0_D1	UART2_TXD			25
				GND	9	10	GPIO0_D0	UART2_RXD			24
116		UART7_TX_M1	PWM14_M0	GPIO3_C4	11	12	GPIO3_A3				99
117		UART7_RX_M1	PWM15_IR_M0	GPIO3_C5	13	14	GND
16		UART0_RX	PWM1_M0	GPIO0_C0	15	16	GPIO3_A1				97
17		UART0_TX	PWM2_M0	GPIO0_C1	17	18	GPIO3_B2	UART4_TX_M1	PWM9_M0		106
147	CAN1_TX_M1	SPI3_MOSI_M1	PWM15_IR_M1	GPIO4_C3	19	20	GND
149	UART9_TX_M1	SPI3_MISO_M1	PWM12_M1	GPIO4_C5	21	22	ADC_IN5
146	CAN1_RX_M1	SPI3_CLK_M1	PWM14_M1	GPIO4_C2	23	24	GPIO4_C6	PWM13_M1	SPI3_CS0_M1	UART9_RX_M1	150
				GND	25	26	GPIO4_D1	SPI3_CS1_M1			153
14	USB_DP	PWM2_M1	I2C2_SDA_M0	GPIO0_B6	27	28	GPIO0_B5	I2C2_SCL_M0	PWM1_M1	USB_DM	13
95			UART8_TX_M1	GPIO2_D7	29	30	GND
96		UART8_RX_M1	SPI2_CLK_M1	GPIO3_A0	31	32	GPIO3_C2	UART5_TX_M1			114
115			UART5_RX_M1	GPIO3_C3	33	34	GND
100				GPIO3_A4	35	36	GPIO3_A2				98
112		UART3_RX_M1	PWM13_M0	GPIO3_C0	37	38	GPIO3_A6				102
				GND	39	40	GPIO3_A5				101

More details about 40-pin Header In V1.2

Pins marked with color orange are designed for debug console.
PWM; x7, PWM1 / PWM2 / PWM9 / PWM12 / PWM13 / PWM14 / PWM15
SPI: x1, SPI3
I2C: x2, I2C2 / I2C3
UART: x6, UART0 / UART3 / UART5 / UART7 / UART8 / UART9
ADC: x1, ADC_IN5
CAN: x1, CAN1
USB 2.0: x1, USB_DP(PIN#27) + USB_DM(PIN#28)
- When we select this USB function, you need to modify the hardware like this.
  - Remove R90526 R90527
  - Add R90536 R90537

Hardware V1.3/V1.31

GPIO number	Function4	Function3	Function2	Function1	Pin#	Pin#	Function1	Function2	Function3	Function4	GPIO number
				+3.3V	1	2	+5.0V
32	CAN1_RX_M0	UART3_RX_M0	I2C3_SDA_M0	GPIO1_A0	3	4	+5.0V
33	CAN1_TX_M0	UART3_TX_M0	I2C3_SCL_M0	GPIO1_A1	5	6	GND
13		PWM1_M1	I2C2_SCL_M0	GPIO0_B5	7	8	GPIO0_D1	UART2_TXD			25
				GND	9	10	GPIO0_D0	UART2_RXD			24
116		UART7_TX_M1	PWM14_M0	GPIO3_C4	11	12	GPIO3_A3				99
117		UART7_RX_M1	PWM15_IR_M0	GPIO3_C5	13	14	GND
16		UART0_RX	PWM1_M0	GPIO0_C0	15	16	GPIO0_B6	I2C2_SDA_M0	PWM2_M1		14
				+3.3V	17	18	GPIO3_B2	UART4_TX_M1	PWM9_M0		106
147	CAN1_TX_M1	SPI3_MOSI_M1	PWM15_IR_M1	GPIO4_C3	19	20	GND
149	UART9_TX_M1	SPI3_MISO_M1	PWM12_M1	GPIO4_C5	21	22	GPIO0_C1	PWM2_M0	UART0_TX		17
146	CAN1_RX_M1	SPI3_CLK_M1	PWM14_M1	GPIO4_C2	23	24	GPIO4_C6	PWM13_M1	SPI3_CS0_M1	UART9_RX_M1	150
				GND	25	26	GPIO4_D1	SPI3_CS1_M1			153
12	USB_DP	CAN0_RX_M0	I2C1_SDA	GPIO0_B4	27	28	GPIO0_B3	I2C1_SCL	CAN0_TX_M0	USB_DM	11
95			UART8_TX_M1	GPIO2_D7	29	30	GND
96			UART8_RX_M1	GPIO3_A0	31	32	GPIO3_C2	UART5_TX_M1			114
115		UART5_RX_M1	SPI1_CLK_M1	GPIO3_C3	33	34	GND
100				GPIO3_A4	35	36	GPIO3_A2				98
				SARADC_VIN5	37	38	GPIO3_A6				102
				GND	39	40	GPIO3_A5				101

More details about 40-pin Header In V1.3/V1.31

Pins marked with color orange are designed for debug console.
PWM; x7, PWM1 / PWM2 / PWM9 / PWM12 / PWM13 / PWM14 / PWM15
SPI: x1, SPI3
I2C: x3, I2C1 / I2C2 / I2C3
UART: x6, UART0 / UART3 / UART5 / UART7 / UART8 / UART9
ADC: x1, SARADC_VIN5
CAN: x2, CAN0 / CAN1
USB 2.0: x1, USB_DP(PIN#27) + USB_DM(PIN#28)
- When we select this USB function, you need to modify the hardware like this.
  - Remove R90526 R90527
  - Add R90536 R90537

IO 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.

| GPIO       | Voltage Level | Tolerance |
| ---------- | ------------- | --------- |
| GPIO3_C0   | 3.3V          | 3.63V     |
| ADC_IN5    | 1.8V          | 1.98V     |

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 2: / Line 2: @@
 {{Languages|rock3/hardware/gpio}}
-     [[rock3 | ROCK 3]] > [[rock3/hardware | Hardware]] > [[rock3/hardware/rock3a-gpio | ROCK 3 A GPIO]]
+     [[rock3 | ROCK 3]] > [[rock3/hardware | Hardware]] > [[rock3/hardware/rock3a-gpio | ROCK 3A GPIO]]
 == <span id="gpio">General purpose input-output (GPIO) connector</span> ==
-ROCK 3 A has a 40-pin expansion header. Each pin is distinguished by color.
+ROCK 3A has one 40-pin expansion header. Each pin is distinguished by color.
 <div class="col-md-12 ">
@@ Line 136: / Line 136: @@
 | style="background-color:#008000; color:#FFF;" | 16
 | GPIO3_A1
-| SPI1_CS0_M1
+|
 |
 |
@@ Line 212: / Line 212: @@
 |-
 | 14
+| USB_DP
 | PWM2_M1
-| SPI0_MOSI_M0
 | I2C2_SDA_M0
 | GPIO0_B6
@@ Line 221: / Line 221: @@
 | GPIO0_B5
 | I2C2_SCL_M0
-| SPI0_CLK_M0
 | PWM1_M1
+| USB_DM
 | 13
 |-
 | 95
 |
-| UART8_TX_M1
+|
-| SPI2_MISO_M1
+| UART8_TX_M1
 | GPIO2_D7
 | style="background-color:#008000; color:#FFF;" | 29
@@ Line 248: / Line 248: @@
 | style="background-color:#008000; color:#FFF;" | 32
 | GPIO3_C2
-| SPI1_MISO_M1
 | UART5_TX_M1
+|
 |
 | 114
 |-
 | 115
+|
 |
 | UART5_RX_M1
-| SPI1_CLK_M1
 | GPIO3_C3
 | style="background-color:#008000; color:#FFF;" | 33
@@ Line 319: / Line 319: @@
 * Pins marked with color orange are designed for debug console.
-* PWM; x7, PWM1/PWM2/PWM9/PWM12/PWM13/PWM14/PWM15
+* PWM; x7, PWM1 / PWM2 / PWM9 / PWM12 / PWM13 / PWM14 / PWM15
 * SPI: x1, SPI3
-* I2C: x2, I2C2/I2C3
+* I2C: x2, I2C2 / I2C3
-* UART: x6, UART0/UART3/UART5/UART7/UART8/UART9
+* UART: x6, UART0 / UART3 / UART5 / UART7 / UART8 / UART9
 * ADC: x1, ADC_IN5
 * CAN: x1, CAN1
-* USB: x1, PIN#27 and PIN#28
+* USB 2.0: x1, USB_DP(PIN#27) + USB_DM(PIN#28)
 ** When we select this USB function, you need to modify the hardware like this.
 *** Remove R90526 R90527
@@ Line 332: / Line 332: @@
 <div class="col-md-12 ">
      <div class="panel panel-midnight-white">
-         <div class="panel-heading"><h3>Hardware V1.3</h3></div>
+         <div class="panel-heading"><h3>Hardware V1.3/V1.31</h3></div>
          <div class="panel-body">
 {| class="wikitable" style="vertical-align:middle; background-color:#F9F9F9;"
@@ Line 393: / Line 393: @@
 |-
 | 13
+|
 | PWM1_M1
-| SPI0_CLK_M0
 | I2C2_SCL_M0
 | GPIO0_B5
@@ Line 458: / Line 458: @@
 | GPIO0_B6
 | I2C2_SDA_M0
-| SPI0_MOSI_M0
 | PWM2_M1
+|
 | 14
 |-
@@ Line 533: / Line 533: @@
 |-
 | 12
-|
+| USB_DP
 | CAN0_RX_M0
 | I2C1_SDA
@@ Line 543: / Line 543: @@
 | I2C1_SCL
 | CAN0_TX_M0
-|
+| USB_DM
 | 11
 |-
 | 95
+|
 |
 | UART8_TX_M1
-| SPI2_MISO_M1
 | GPIO2_D7
 | style="background-color:#008000; color:#FFF;" | 29
@@ Line 561: / Line 561: @@
 |-
 | 96
+|
 |
 | UART8_RX_M1
-| SPI2_CLK_M1
 | GPIO3_A0
 | style="background-color:#008000; color:#FFF;" | 31
@@ Line 569: / Line 569: @@
 | style="background-color:#008000; color:#FFF;" | 32
 | GPIO3_C2
-| SPI1_MISO_M1
 | UART5_TX_M1
+|
 |
 | 114
@@ Line 636: / Line 636: @@
 <div class="clearfix"></div>
-==== More details about 40-pin Header In V1.3 ====
+==== More details about 40-pin Header In V1.3/V1.31 ====
 * Pins marked with color orange are designed for debug console.
-* PWM; x7, PWM1/PWM2/PWM9/PWM12/PWM13/PWM14/PWM15
+* PWM; x7, PWM1 / PWM2 / PWM9 / PWM12 / PWM13 / PWM14 / PWM15
 * SPI: x1, SPI3
-* I2C: x3, I2C1/I2C2/I2C3
+* I2C: x3, I2C1 / I2C2 / I2C3
-* UART: x6, UART0/UART3/UART5/UART7/UART8/UART9
+* UART: x6, UART0 / UART3 / UART5 / UART7 / UART8 / UART9
 * ADC: x1, SARADC_VIN5
-* CAN: x2, CAN0/CAN1
+* CAN: x2, CAN0 / CAN1
-* USB: x1, PIN#27 and PIN#28
+* USB 2.0: x1, USB_DP(PIN#27) + USB_DM(PIN#28)
 ** When we select this USB function, you need to modify the hardware like this.
 *** Remove R90526 R90527