M451的SPI Flash操作

/**************************************************************************//**

 * [url=home.php?mod=space&uid=288409]@file[/url]     main.c

 * [url=home.php?mod=space&uid=895143]@version[/url]  V3.00

 * $Revision: 4 $

 * $Date: 15/09/02 10:03a $

 * [url=home.php?mod=space&uid=247401]@brief[/url]    Demonstrate how to set GPIO pin mode and use pin data input/output control.

 * @note

 * Copyright (C) 2013~2015 Nuvoton Technology Corp. All rights reserved.

 *

 ******************************************************************************/

#include "stdio.h"

#include "M451Series.h"

#include "NuEdu-Basic01.h"



#define PLL_CLOCK       72000000

#define TEST_NUMBER                 10 /* page numbers */

unsigned char   SrcArray[256];

unsigned char DestArray[256];



void SYS_Init(void)

{

    /*---------------------------------------------------------------------------------------------------------*/

    /* Init System Clock                                                                                       */

    /*---------------------------------------------------------------------------------------------------------*/



    /* Enable HIRC clock (Internal RC 22.1184MHz) */

    CLK_EnableXtalRC(CLK_PWRCTL_HIRCEN_Msk);



    /* Wait for HIRC clock ready */

    CLK_WaitClockReady(CLK_STATUS_HIRCSTB_Msk);



    /* Select HCLK clock source as HIRC and and HCLK clock divider as 1 */

    CLK_SetHCLK(CLK_CLKSEL0_HCLKSEL_HIRC, CLK_CLKDIV0_HCLK(1));



    /* Enable HXT clock (external XTAL 12MHz) */

    CLK_EnableXtalRC(CLK_PWRCTL_HXTEN_Msk);



    /* Wait for HXT clock ready */

    CLK_WaitClockReady(CLK_STATUS_HXTSTB_Msk);



    /* Set core clock as PLL_CLOCK from PLL */

    CLK_SetCoreClock(PLL_CLOCK);



    /* Enable UART module clock */

    CLK_EnableModuleClock(UART0_MODULE);



    /* Select UART module clock source as HXT and UART module clock divider as 1 */

    CLK_SetModuleClock(UART0_MODULE, CLK_CLKSEL1_UARTSEL_HXT, CLK_CLKDIV0_UART(1));



    /*---------------------------------------------------------------------------------------------------------*/

    /* Init I/O Multi-function                                                                                 */

    /*---------------------------------------------------------------------------------------------------------*/



    /* Set PD multi-function pins for UART0 RXD(PD.6) and TXD(PD.1) */

    SYS->GPD_MFPL &= ~(SYS_GPD_MFPL_PD6MFP_Msk | SYS_GPD_MFPL_PD1MFP_Msk);

    SYS->GPD_MFPL |= (SYS_GPD_MFPL_PD6MFP_UART0_RXD | SYS_GPD_MFPL_PD1MFP_UART0_TXD);



}



void UART0_Init()

{

    /*---------------------------------------------------------------------------------------------------------*/

    /* Init UART                                                                                               */

    /*---------------------------------------------------------------------------------------------------------*/

    /* Reset UART module */

    SYS_ResetModule(UART0_RST);



    /* Configure UART0 and set UART0 baud rate */

    UART_Open(UART0, 115200);

}



/*---------------------------------------------------------------------------------------------------------*/

/*  Main Function                                                                                          */

/*---------------------------------------------------------------------------------------------------------*/

int32_t main(void)

{

    unsigned int u32ByteCount;

    unsigned int u32PageNumber;

    unsigned int u32ProgramFlashAddress = 0;

    unsigned int u32VerifyFlashAddress = 0;

    unsigned int MidDid;



    /* Unlock protected registers */

    SYS_UnlockReg();



    /* Init System, peripheral clock and multi-function I/O */

    SYS_Init();



    /* Lock protected registers */

    SYS_LockReg();



    /* Init UART0 for printf */

    UART0_Init();



    printf("Hello World.\n");

    printf("PLL Clock = %d Hz\n", CLK_GetPLLClockFreq());

    printf("Core Clock = %d Hz\n\n", CLK_GetHCLKFreq());

    printf("+-------------------------------------------------------+\n");

    printf("|       M451 Series SPI_Flash Sample Code         |\n");

    printf("+-------------------------------------------------------+\n");



    /* Open 7-Seg */

    Open_Seven_Segment();



    /* Open SPI for Serial Flash */

    Open_SPI_Flash();



    /* Read MID & DID */

    MidDid = SpiFlash_ReadMidDid();

    printf("\nMID and DID = %x", MidDid);



    /* Erase SPI Flash */

    SpiFlash_ChipErase();

    printf("\nFlash Erasing... ");



    /* Wait ready */

    SpiFlash_WaitReady();

    printf("Done!");



    /* Fill the Source Data and clear Destination Data Buffer */

    for(u32ByteCount = 0; u32ByteCount < 256; u32ByteCount++)

    {

        SrcArray[u32ByteCount] = u32ByteCount;

        DestArray[u32ByteCount] = 0;

    }



    u32ProgramFlashAddress = 0;

    u32VerifyFlashAddress = 0;

    for(u32PageNumber = 0; u32PageNumber < TEST_NUMBER; u32PageNumber++)

    {

        printf("\n\nTest Page Number = %d", u32PageNumber);

        Show_Seven_Segment(u32PageNumber, 1);

        CLK_SysTickDelay(200000);



        /*=== Program SPI Flash ===*/

        printf("\n Flash Programming... ");



        /* Page Program */

        SpiFlash_PageProgram(SrcArray, u32ProgramFlashAddress, 256);

        SpiFlash_WaitReady();

        u32ProgramFlashAddress += 0x100;

        printf("Done!");



        /*=== Read Back and Compare Data ===*/

        printf("\n Flash Verifying... ");



        /* Page Read */

        SpiFlash_ReadData(DestArray, u32VerifyFlashAddress, 256);

        u32VerifyFlashAddress += 0x100;



        for(u32ByteCount = 0; u32ByteCount < 256; u32ByteCount++)

        {

            if(DestArray[u32ByteCount] != u32ByteCount)

            {

                /* Error */

                printf("SPI Flash R/W Fail!");

                while(1);

            }

        }



        /* Clear Destination Data Buffer */

        for(u32ByteCount = 0; u32ByteCount < 256; u32ByteCount++)

            DestArray[u32ByteCount] = 0;



        printf("Done!");

    }



    printf("\n\nSPI Flash Test Ok!");

    printf("\n\n");



    while(1);



}