//*****************************************************************************
//
// blinky.c - Simple example to blink the on-board LED.
//
// Copyright (c) 2007-2010 Texas Instruments Incorporated. All rights reserved.
// Software License Agreement
//
// Texas Instruments (TI) is supplying this software for use solely and
// exclusively on TI's microcontroller products. The software is owned by
// TI and/or its suppliers, and is protected under applicable copyright
// laws. You may not combine this software with "viral" open-source
// software in order to form a larger program.
//
// THIS SOFTWARE IS PROVIDED "AS IS" AND WITH ALL FAULTS.
// NO WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT
// NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. TI SHALL NOT, UNDER ANY
// CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
// DAMAGES, FOR ANY REASON WHATSOEVER.
//
// This is part of revision 5961 of the DK-LM3S818 Firmware Package.
//
//*****************************************************************************
#include "lm3s818.h"
//*****************************************************************************
//
//! \addtogroup example_list
//! <h1>Blinky (blinky)</h1>
//!
//! A very simple example that blinks the on-board LED.
//
//*****************************************************************************
//*****************************************************************************
//
// Blink the on-board LED.
//
//*****************************************************************************
int
main(void)
{
volatile unsigned long ulLoop;
//
// Enable the GPIO port that is used for the on-board LED.
//
SYSCTL_RCGC2_R = SYSCTL_RCGC2_GPIOB;
//
// Do a dummy read to insert a few cycles after enabling the peripheral.
//
ulLoop = SYSCTL_RCGC2_R;
//
// Enable the GPIO pin for the LED (PB0). Set the direction as output, and
// enable the GPIO pin for digital function. Care is taken to not disrupt
// the operation of the PB7/TRST pin.
//
GPIO_PORTB_DIR_R |= 0x01;
GPIO_PORTB_DEN_R |= 0x01;
//
// Loop forever.
//
while(1)
{
//
// Turn on the LED.
//
GPIO_PORTB_DATA_R |= 0x01;
//
// Delay for a bit.
//
for(ulLoop = 0; ulLoop < 200000; ulLoop++)
{
}
//
// Turn off the LED.
//
GPIO_PORTB_DATA_R &= ~(0x01);
//
// Delay for a bit.
//
for(ulLoop = 0; ulLoop < 200000; ulLoop++)
{
}
}
}