I2C Interface; Gpio & Led - Vecom VIG-100 User Manual

4.3 I2C interface

There are two different I2C buses on VIG-100 system, I2C-1 is for SOM internal
use, and I2C-2 is connected to RTC and external I2C Header. If user wants to
have external I2C header, please avoid the occupied I2C address.
Figure 4-3-1: I2C device address table
4.4 GPIO & LED
VIG-100 is with 8 Programmable GPIO and 2 Programmable LED (totally 8
LED, but only 2 programmable), which is similar to COM port configuration. User
needs to figure out the pin mapping before programming. The following steps
are example to set GPIO 1 as output high, and turn on LED 4:
1: Set GPIO 1 as output high
2: Turn LED 4
INITIAL LOGIN 43