How to use UARTs
From IGEP - ISEE Wiki
Contents
Overview
This How-To is meant to be a starting point for people to learn use UART for IGEP v2 devices as quickly and easily as possible. In this how-to, we use a program(upload source code), executed twice in separated progres at the same IGEP. Its function is get a number from UART, increase it and send result via other UART, the result will be a infinite loop between 2 UARTs. This program was tested in Linaro Headless with Kernel 2.6.35.y.
Note: This program have a debug option using GPIOs to debug via oscilloscope the Kernel latencies between "write" and "select" functions.
Feedback and Contributing
At any point, if you see a mistake you can contribute to this How-To.
Preparing IGEP
Check UARTs
Wire connectors
Under Construction
