Difference between revisions of "Rock/extension header"

Revision as of 16:10, 20 November 2014

80 pin 2.54mm extension header

Radxa Rock(pro/lite) has two 2.54mm 40 pins(20*2) extension header on board, which includes GPIO, I2C, SPI, Line in, USB 2.0, PWM, ADC, LCD etc interfaces. You can easily connect the breadboard or other sensor board to the rock. All the rock/rock pro/rock lite is compatible on the extension header, so it works on any hardware revision.

Extension header as GPIO only

WARNING: the above schematic is wrong for J12 header, the pins 26, 27, 28 and 30 can not be used as GPIOs.
Hopefully someone will correct this image and remove this warning...

Other function on extension header

Thanks @zwanni for the picture and the excel table.

Full function table

J8 (Near USB host and RTC battery)
USB Host
1	Ground		2	VCC-5V
3	HOST_DP2		4	HOST_DM2
Audio Input
5	LINE Left		6	LINE Right
GPIO
7	GPIO0_A7		8	GPIO0_A6
9	GPIO0_B1		10	GPIO0_A1
PWM
11	PWM2	GPIO3_D5	12	PWM1	GPIO3_D4
UART0
13	UART0_RX	GPIO1_A0	14	UART0_TX	GPIO1_A1
15	UART0_CTS	GPIO1_A2	16	UART0_RTS	GPIO1_A3
17	Ground		18	VCC-2.8V
SPI1 / UART3 / GPS
19	SPI1_CSN0	GPIO0_D7	20	UART3_RTSN	GPIO1_B5
21	SPI1_RX	GPIO0_D4 (GPS_PWR)	22	UART3_RX	GPIO1_B2	GPS_MAG
23	SPI1_CLK (GPS_SCLK)	GPIO0_D6	24	UART3_TX	GPIO1_B3	GPS_SIG
25	SARADC_ANI2 (GPS_LRADC)		26	UART3_CTSN	GPIO1_B4	GPS_CLK
27	GPIO0_A5		28	SPI1_TX (GPS_MOSI)		GPIO0_D5
I2C
29	Ground		30	VCCIO_WL
31	I2C0_SCL	GPIO1_D1	32	I2C0_SDA	GPIO1_D0
ADC (Analog-to-digital converters)
33	SARADC_ANI0		34	SARADC_ANI1 (RECOVERY)
MISC
35	POWER_SW		36	PWR_EN
37	HSIC_DATA		38	HSIC_STROBE
39	Ground		40	VDD-5V

J12 (Near Power Key and DC Jack)
LCD
1	Ground			2	LCDC0_D0
3	LCDC0_D1			4	LCDC0_D2
5	LCDC0_D3			6	LCDC0_D4
7	LCDC0_D5			8	LCDC0_D6
9	LCDC0_D7			10	LCDC0_D8
11	LCDC0_D9			12	LCDC0_D10
13	LCDC0_D11			14	LCDC0_D12
15	LCDC0_D13			16	LCDC0_D14
17	LCDC0_D15			18	LCDC0_D16
19	LCDC0_D17			20	LCDC0_D18
21	LCDC0_D19			22	LCDC0_D20
23	LCDC0_D21			24	LCDC0_D22
25	LCDC0_D23			26	LCDC0_HSYNC
27	LCDC0_VSYNC			28	LCDC0_DE
29	Ground			30	LCDC0_CLK
GPIO / PWM
31	GPIO0_B0 (LCD_EN)			32	GPIO0_A2 (BL_EN)
33	PWM3 (LCD_BL)	GPIO3_D6		34	SPI0_CSN1	GPIO1_B7
SPI0 / UART1
35	SPI0_CSN0	GPIO1_A7	UART1_RTSN	36	SPI0_RXD	GPIO1_A4	UART1_RX
37	SPI0_CLK	GPIO1_A6	UART1_CTSN	38	SPI0_TXD	GPIO1_A5	UART1_TX
39	VCC-5V			40	Ground

FPC extension header

Rock Pro and Lite(2014 Mid) has three FPC header at the back of the board.

@@ Line 7: / Line 7: @@
 === Extension header as GPIO only ===
 [[File:extension_header_funca.png]]
+<span style="color: red;">WARNING: the above schematic is wrong for J12 header, the pins 26, 27, 28 and 30 can not be used as GPIOs.<br/>
+Hopefully someone will correct this image and remove this warning...</span>
 === Other function on extension header===