
17
Chapter 2
HARDWARE INSTALLATION
User's Manual |
EC102-XNX
Expansion Slots - 20 Pin GPIO expansion
2x I2C, 1x UART, 9x GPIOs
X
I/O Ports
Pin Define
Address
Pin
Define
Address
1
+3V3
2
+5V
3
GND
4
GND
5
I2C1_SDA
/dev/i2c-1
6
UART2_TXD_3V3 Debug Console
/dev/ttyS0
7
I2C1_SCL
8
UART2_RXD_3V3
9
I2C0_SDA
/dev/i2c-0
10
GND
11
I2C0_SCL
12
SPI1_SCK
gpio14
13
I2S0_SCLK gpio79
14
SPI1_MISO
gpio13
15
I2S0_DOUT gpio78
16
SPI1_MOSI
gpio12
17
I2S0_DIN
gpio77
18
SPI1_CS0
gpio15
19
I2S0_FS
gpio76
20
SPI1_CS1
gpio232
Pin Assignment
OTG programming recovery
This port is for OTG programming, any USB standard Micro type interface cable or device fits
the port.
X
I/O Ports