bsp.c

基于 Luminary Micro 公司的 Cortex-M3 (ARM)内核使用之 uC/OS-II 作业系统,此例程是移植于 LM3S811 上的应用,于 IAR EWARM V4.41A 工程编

/*
*********************************************************************************************************
*                                          BOARD SUPPORT PACKAGE
*
*                          (c) Copyright 2003-2006; Micrium, Inc.; Weston, FL
*
*               All rights reserved.  Protected by international copyright laws.
*               Knowledge of the source code may NOT be used to develop a similar product.
*               Please help us continue to provide the Embedded community with the finest
*               software available.  Your honesty is greatly appreciated.
*********************************************************************************************************
*/

/*
*********************************************************************************************************
*
*                                           BOARD SUPPORT
*
*                                       Luminary Micro LM3S811
*                                              with the
*                                       LM3S811 Evaluation Kit
*
* Filename      : bsp.c
* Version       : V1.00
* Programmer(s) : Brian Nagel
*********************************************************************************************************
*/

#define  BSP_GLOBALS

#include <includes.h>

/*
*********************************************************************************************************
*                                              CONSTANTS
*********************************************************************************************************
*/

#define  PB_USER   (1 << 4)
#define  LED_USER  (1 << 5)

/*
*********************************************************************************************************
*                                               DATA TYPES
*********************************************************************************************************
*/

typedef  void (*PFNCT)(void);

/*
*********************************************************************************************************
*                                              VARIABLES
*********************************************************************************************************
*/

/*
*********************************************************************************************************
*                                              PROTOTYPES
*********************************************************************************************************
*/

static  void  Tmr_TickInit  (void);
static  void  LED_Init      (void);
static  void  PB_Init       (void);
static  void  ADC_Init      (void);

/*
******************************************************************************************************************************
******************************************************************************************************************************
**                                         Global Functions
******************************************************************************************************************************
******************************************************************************************************************************
*/

/*
*********************************************************************************************************
*                                         BSP INITIALIZATION
*
* Description : This function should be called by your application code before you make use of any of the
*               functions found in this module.
*
* Arguments   : none
*********************************************************************************************************
*/

void  BSP_Init (void)
{
                                                                /* Set the clock using a divider of 5                       */
    SysCtlClockSet(SYSCTL_SYSDIV_5 | SYSCTL_USE_PLL | SYSCTL_OSC_MAIN | SYSCTL_XTAL_6MHZ);

    SysCtlPeripheralEnable(SYSCTL_PERIPH_ADC);                  /* Enable ADC   peripheral                                  */
    SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOC);                /* Enable GPIOC peripheral                                  */

    OSRAMInit(DEF_TRUE);                                        /* Initialize the OSRAM OLED display                        */

    LED_Init();                                                 /* Initialize the I/Os for the LED controls                 */
    PB_Init();                                                  /* Initialize the I/Os for the PB  controls                 */
    ADC_Init();                                                 /* Initialize the I/Os for the ADC control                  */

    Tmr_TickInit();                                             /* Initialize the uC/OS-II tick interrupt                   */
}

/*
*********************************************************************************************************
*                                     DISABLE ALL INTERRUPTS
*
* Description : This function disables all interrupts from the interrupt controller.
*
* Arguments   : none
*********************************************************************************************************
*/

void  BSP_IntDisAll (void)
{
    CPU_DI();
}


/*
******************************************************************************************************************************
******************************************************************************************************************************
**                                       PB, LED, and ADC Functions
******************************************************************************************************************************
******************************************************************************************************************************
*/

/*
*********************************************************************************************************
*                                         LED INITIALIZATION
*
* Description : This function initializes the board's LEDs
*
* Arguments   : none
*********************************************************************************************************
*/

static  void  LED_Init (void)
{
    GPIODirModeSet(GPIO_PORTC_BASE, LED_USER, GPIO_DIR_MODE_OUT);

    LED_Off(0);                                                 /* Turn OFF all the LEDs                                    */
}

/*
*********************************************************************************************************
*                                             LED ON
*
* Description : This function is used to control any or all the LEDs on the board.
*
* Arguments   : led    is the number of the LED to control
*                      0    indicates that you want ALL the LEDs to be ON
*                      1    turns ON LED1  on the board
*********************************************************************************************************
*/

void  LED_On (CPU_INT08U led)
{
    switch (led) {
        case 0:
             GPIOPinWrite(GPIO_PORTC_BASE, LED_USER, 0);

        case 1:
             GPIOPinWrite(GPIO_PORTC_BASE, LED_USER, 0);
             break;

        default:
             break;
    }
}

/*
*********************************************************************************************************
*                                             LED OFF
*
* Description : This function is used to control any or all the LEDs on the board.
*
* Arguments   : led    is the number of the LED to turn OFF
*                      0    indicates that you want ALL the LEDs to be OFF
*                      1    turns OFF LED1  on the board
*                      .
*                      .
*                     16    turns OFF LED16 on the board
*********************************************************************************************************
*/

void  LED_Off (CPU_INT08U led)
{
    switch (led) {
        case 0:
             GPIOPinWrite(GPIO_PORTC_BASE, LED_USER, 1);
            break;

        case 1:
             GPIOPinWrite(GPIO_PORTC_BASE, LED_USER, 1);
             break;

        default:
             break;
    }
}

/*
*********************************************************************************************************
*                                             LED TOGGLE
*
* Description : This function is used to toggle any or all the LEDs on the board.
*
* Arguments   : led    is the number of the LED to control
*                      0    indicates that you want to toggle ALL the LEDs
*                      1    toggles LED1  on the board
*                      .
*                      .
*                     16    toggles LED16 on the board
*********************************************************************************************************
*/

void  LED_Toggle (CPU_INT08U led)
{
    CPU_INT32U  pins;


    switch (led) {
        case 0:
             pins = GPIOPinRead(GPIO_PORTC_BASE, LED_USER);
             if ((pins & LED_USER) == 0) {
                 GPIOPinWrite(GPIO_PORTC_BASE, LED_USER, 1);
             } else {
                 GPIOPinWrite(GPIO_PORTC_BASE, LED_USER, 0);
             }