HummingBoard GPIO
|
Pin
|
Signal
|
Pin
|
Signal
|
|---|---|---|---|
1
|
3.3V
|
2
|
5V
|
|
3
|
I2C_SDA
|
4
|
5V
|
|
5
|
I2C_SCL
|
6
|
GND
|
|
7
|
GPIO 1
|
8
|
UART TX
|
|
9
|
GND
|
10
|
UART RX
|
|
11
|
GPIO 73
|
12
|
GPIO 72
|
|
13
|
GPIO 71
|
14
|
GND
|
|
15
|
GPIO 10
|
16
|
GPIO 194*
|
17
|
3.3V
|
18
|
GPIO 195*
|
|
19
|
SPI_MOSI
|
20
|
GND
|
|
21
|
SPI_MISO
|
22
|
GPIO 67
|
|
23
|
SPI_SCLK
|
24
|
ECSPI2_SS0
|
|
25
|
GND
|
26
|
ECSPI2_SS1
|
* Pins 16 and 18 are actually SD3_CMD and SD3_CLK signals that can be muxed to support flex can TX/RX interface
(i.e. those can be connected to an external CAN)
HummingBoard GPIO Header Pinout
