Acrosser AR-B6050 - Manual (Page 29)

AR-B6050 User Ma nual
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4.2 GPIO Programming
This section describes the usage of GPIOs. AR-B6050 integrated eight bits, 5V TTL level,
bidirectional, and software programmable GPIOs for user’s application. They are all capable of 5
mA source current for output and 8 mA sink current for input individually. The electrical
characteristics of GPIOs as following table:
PIN SIGNAL PIN SIGNAL
1 GPO0 2 VCC
3 GPO7 4 GPI7
5 GPO2 6 GPI6
7 GPO3 8 GPI5
9 GND 10 GPI4
To quickly understand the GPIO programming under Linux, we also provide a sample application
source code in product CD, naming gpio.c. It can be used to control GPIO pin described above and
also LED.
The GPIO sample code of C language as below:
//=========================================================================
==
// Rev Date Name Description
//=========================================================================
==
// 1.0 03/17/10 Willy GPIO10~GPIO17 Test utility for W83627EHF.
//=========================================================================
==
//=========================================================================
==
// Turbo C++ Version 3.0 Copyright(c) 1990, 1992 by Borland International,Inc.
//=========================================================================
==
//=========================================================================
==
// Language include files
//=========================================================================