main.c

str912芯片的串口烧写程序源代码

/******************** (C) COPYRIGHT 2006 STMicroelectronics ********************
* File Name          : main.c
* Author             : MCD Application Team
* Date First Issued  : 09/15/2006 : IAP Version 1.0
* Description        : The main program
********************************************************************************
* History:
* 09/15/2006 : IAP Version 1.0
********************************************************************************
* THE PRESENT SOFTWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME.
* AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY DIRECT,
* INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE
* CONTENT OF SUCH SOFTWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING
* INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
*******************************************************************************/

/* Includes ------------------------------------------------------------------*/
#include "common.h"
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
static u8 Push_Button_Read (void);
static void Push_Button_Config(void);


/* Private functions ---------------------------------------------------------*/
/*******************************************************************************
* Function Name  : IAP_Init
* Description    : Initialize the IAP(Configure PLL, UART and GPIOs).
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void IAP_Init(void)
{


    GPIO_InitTypeDef GPIO_InitStructure;
    UART_InitTypeDef UART_InitStructure;
    /* Configure the system clocks */
    /* Enable the UART0 Clock */
    SCU_APBPeriphClockConfig(__UART0, ENABLE);
    /* Enable the GPIO3 Clock */
    SCU_APBPeriphClockConfig(__GPIO3, ENABLE);
    /* Enable the GPIO5 Clock */
    SCU_APBPeriphClockConfig(__GPIO5, ENABLE);

    /*Gonfigure UART0_Rx pin GPIO5.1*/
    GPIO_InitStructure.GPIO_Direction = GPIO_PinInput;
    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_1;
    GPIO_InitStructure.GPIO_Type = GPIO_Type_PushPull ;
    GPIO_InitStructure.GPIO_IPConnected = GPIO_IPConnected_Enable;
    GPIO_InitStructure.GPIO_Alternate = GPIO_InputAlt1  ;
    GPIO_Init(GPIO5, &GPIO_InitStructure);

    /*Gonfigure UART0_Tx pin GPIO3.4*/
    GPIO_InitStructure.GPIO_Direction = GPIO_PinInput;
    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4;
    GPIO_InitStructure.GPIO_Type = GPIO_Type_PushPull ;
    GPIO_InitStructure.GPIO_Alternate = GPIO_OutputAlt3  ;
    GPIO_Init(GPIO3, &GPIO_InitStructure);

    /* UART0 configured as follow:
          - Word Length = 8 Bits
          - One Stop Bit
          - No parity
          - BaudRate = 115200 baud
          - Hardware flow control Disabled
          - Receive and transmit enabled
          - Receive and transmit FIFOs are Disabled
    */


    UART_InitStructure.UART_WordLength = UART_WordLength_8D;
    UART_InitStructure.UART_StopBits = UART_StopBits_1;
    UART_InitStructure.UART_Parity = UART_Parity_No ;
    UART_InitStructure.UART_BaudRate = 115200;
    UART_InitStructure. UART_HardwareFlowControl = UART_HardwareFlowControl_None;
    UART_InitStructure.UART_Mode = UART_Mode_Tx_Rx;
    UART_InitStructure.UART_FIFO = UART_FIFO_Disable;
    UART_DeInit(UART0);

    UART_Init(UART0, &UART_InitStructure);

    UART_Cmd(UART0, ENABLE);

}

/*******************************************************************************
* Function Name  : Push_Button_Read
* Description    : Read the port pin (connected to the push button) level.
* Input          : None
* Output         : None
* Return         : The port pin level (SET or RESET).
*******************************************************************************/
static u8 Push_Button_Read (void)
{
    /* Return the status of the Joystick button (Port 7) on the STR910-EVAL */
    return GPIO_Read(GPIO7);
}

/*******************************************************************************
* Function Name  : Push_Button_Config
* Description    : Configures the port pin connected to the push button.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
static void Push_Button_Config(void)
{

    GPIO_InitTypeDef GPIO_InitStructure1;

    /*Enable Clock for GPIO7*/
    SCU_APBPeriphClockConfig(__GPIO7, ENABLE);

    /*Configure GPIO7: pin5, pin6 and pin7*/
    GPIO_DeInit(GPIO7);
    GPIO_StructInit(&GPIO_InitStructure1);
    GPIO_InitStructure1.GPIO_Direction = GPIO_PinInput;
    GPIO_InitStructure1.GPIO_Pin = GPIO_Pin_5 | GPIO_Pin_6 | GPIO_Pin_7;
    GPIO_InitStructure1.GPIO_Type = GPIO_Type_PushPull ;
    GPIO_Init(GPIO7, &GPIO_InitStructure1);

}

/*******************************************************************************
* Function Name  : main
* Description    : Main program.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void main(void)
{

#ifdef DEBUG
    debug();
#endif

    Push_Button_Config();

    if (Push_Button_Read() == 0x60)    /*  If Joystick position is 'Right' */
    {
        /* Execute the IAP driver in order to re-program the Flash */
        IAP_Init();
        SerialPutString("\r\n======================================================================");
        SerialPutString("\r\n=              (C) Copyright 2006 STMicroelecronics                  =");
        SerialPutString("\r\n=                                                                    =");
        SerialPutString("\r\n=     In-Application Programming Application  (Version 1.0)          =");
        SerialPutString("\r\n=                                                                    =");
        SerialPutString("\r\n=                                   By MCD Application Team          =");
        SerialPutString("\r\n======================================================================");
        SerialPutString("\r\n\r\n");
        Main_Menu ();
    }
    else
        /* Keep the user application running */
    {
        Execute_STR9Application();
    }

    while (1);
}
/******************* (C) COPYRIGHT 2006 STMicroelectronics *****END OF FILE****/