main.c

CNC.rar

//*****************************************************************************
//
// main.c - Main application for the user interface microcontroller.
//
// Copyright (c) 2006-2007 Luminary Micro, Inc.  All rights reserved.
//
// Software License Agreement
//
// Luminary Micro, Inc. (LMI) is supplying this software for use solely and
// exclusively on LMI's microcontroller products.
//
// The software is owned by LMI and/or its suppliers, and is protected under
// applicable copyright laws.  All rights are reserved.  Any use in violation
// of the foregoing restrictions may subject the user to criminal sanctions
// under applicable laws, as well as to civil liability for the breach of the
// terms and conditions of this license.
//
// THIS SOFTWARE IS PROVIDED "AS IS".  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.
// LMI SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR
// CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.
//
// This is part of revision 220 of sw01246.
//
//*****************************************************************************

#include "hw_memmap.h"
#include "hw_types.h"
#include "gpio.h"
#include "sysctl.h"
#include "i2c_master.h"
#include "lcd.h"
#include "ts.h"
#include "ui.h"

//*****************************************************************************
//
//! \page ui_main_intro Introduction
//!
//! This is the main application entry point for the user interface
//! microcontroller.  It is responsible for system level configuration of the
//! LM3S316 microcontroller and calling the initialization routines for the
//! various drivers and interfaces.
//!
//! The code for the main application entry point is contained in
//! <tt>ui_micro/main.c</tt>.
//
//*****************************************************************************

//*****************************************************************************
//
//! \defgroup ui_main_api Definitions
//! @{
//
//*****************************************************************************

//*****************************************************************************
//
//! The error routine that is called if the driver library encounters an error.
//
//*****************************************************************************
#ifdef DEBUG
void
__error__(char *pcFilename, unsigned long ulLine)
{
}
#endif

//*****************************************************************************
//
//! Handles setup of the application on the user interface microcontroller.
//!
//! This is the main application entry point for the user interface
//! microcontroller.  It is responsible for basic system configuration,
//! initialization of the various application drivers and peripherals, and then
//! calling the main user interface control loop.
//!
//! \return Never returns.
//
//*****************************************************************************
int
main(void)
{
    //
    // Configure the processor to run at 20MHz.
    //
    SysCtlClockSet(SYSCTL_SYSDIV_10 | SYSCTL_USE_PLL | SYSCTL_XTAL_6MHZ |
                   SYSCTL_OSC_MAIN | SYSCTL_INT_OSC_DIS);

    //
    // Enable the peripherals used by the application.
    //
    SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOA);
    SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOB);
    SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOC);
    SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOD);
    SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOE);
    SysCtlPeripheralEnable(SYSCTL_PERIPH_I2C);
    SysCtlPeripheralEnable(SYSCTL_PERIPH_SSI);

    //
    // Enable the weak pull-downs instead of the weak-pull-ups.
    //
    GPIOPadConfigSet(GPIO_PORTA_BASE,
                     (GPIO_PIN_0 | GPIO_PIN_1 | GPIO_PIN_2 | GPIO_PIN_3 |
                      GPIO_PIN_4 | GPIO_PIN_5), GPIO_STRENGTH_2MA,
                     GPIO_PIN_TYPE_STD_WPD);
    GPIOPadConfigSet(GPIO_PORTB_BASE,
                     (GPIO_PIN_0 | GPIO_PIN_1 | GPIO_PIN_2 | GPIO_PIN_3 |
                      GPIO_PIN_4 | GPIO_PIN_5 | GPIO_PIN_6 | GPIO_PIN_7),
                     GPIO_STRENGTH_2MA, GPIO_PIN_TYPE_STD_WPD);
    GPIOPadConfigSet(GPIO_PORTC_BASE,
                     (GPIO_PIN_0 | GPIO_PIN_1 | GPIO_PIN_2 | GPIO_PIN_3 |
                      GPIO_PIN_4 | GPIO_PIN_5 | GPIO_PIN_6 | GPIO_PIN_7),
                     GPIO_STRENGTH_2MA, GPIO_PIN_TYPE_STD_WPD);
    GPIOPadConfigSet(GPIO_PORTD_BASE,
                     (GPIO_PIN_0 | GPIO_PIN_1 | GPIO_PIN_2 | GPIO_PIN_3 |
                      GPIO_PIN_4 | GPIO_PIN_5 | GPIO_PIN_6 | GPIO_PIN_7),
                     GPIO_STRENGTH_2MA, GPIO_PIN_TYPE_STD_WPD);
    GPIOPadConfigSet(GPIO_PORTE_BASE, GPIO_PIN_0 | GPIO_PIN_1,
                     GPIO_STRENGTH_2MA, GPIO_PIN_TYPE_STD_WPD);

    //
    // Initialize the I2C interface.
    //
    I2CInit();

    //
    // Initialize the LCD controller.
    //
    LCDInit();

    //
    // Initialize the touch screen driver.
    //
    TSInit();

    //
    // Initialize the user interface.
    //
    UIInit();

    //
    // Enter the user interface loop.  This will never return.
    //
    UILoop();

    //
    // This should never be executed, but just in case, do a full system reset.
    //
    SysCtlReset();
}

//*****************************************************************************
//
// Close the Doxygen group.
//! @}
//
//*****************************************************************************