Renesas：RH850的FDL库的移植与使用

FDL库官方地址：Data Flash Libraries | Renesas

RH850的FDL库与用户手册地址：RH850/F1KM-S4 Design Support Resources | Renesas

 一、FDL库的移植过程

1、添加文件到自己的工程中

（1）解压安装FDL库文件

（2）解压后对应文件夹介绍

（3）将官方库文件和对应的应用文件放到自己的工程文件中

2、用CS+中FDL需要添加的段

 二、用户文件的修改

1、用户手册中对官方库文件与用户文件的介绍

 2、将官方库文件和应用文件添加到自己工程

 3、fdl_descriptor.h 中的修改

#define CPU_FREQUENCY_MHZ       (120)                          //MCU的主频
#define EEL_VIRTUALBLOCKSIZE    (64u)                          //Data FLASH每个blcok为64byte
#define FDL_POOL_SIZE           (16u * EEL_VIRTUALBLOCKSIZE)   
#define EEL_POOL_START          (1u * EEL_VIRTUALBLOCKSIZE)
#define EEL_POOL_SIZE           (6u * EEL_VIRTUALBLOCKSIZE)

//修改成,不使用EEL_POOL
#define CPU_FREQUENCY_MHZ       (240)                         //MCU的主频
#define EEL_VIRTUALBLOCKSIZE    (64u)                         //Data FLASH每个blcok为64byte
#define FDL_POOL_SIZE           (1024)                        //Data Flash 64KB = 1024 blocks * 64 byte
#define EEL_POOL_START          (0)
#define EEL_POOL_SIZE           (0)

• EEL POOL：EEL Pool为EEL提供存储模拟数据和管理信息
• User POOL：所有非由EEL pool分配的FDL池空间都可由用户应用程序自由使用，因此称为
  用户池

三、 FDL库的大致使用流程

    /* 1.初始FDL库 */
    fdlRet = R_FDL_Init( &DeviceFDLCfg_des );
    if( R_FDL_OK != fdlRet )
    {   
        /* Error handler */
        while( 1 );
    }


    /* 2.准备FDL环境 */
    req.command_enu     = R_FDL_CMD_PREPARE_ENV;
    req.idx_u32         = 0;
    req.cnt_u16         = 0;
    req.accessType_enu  = R_FDL_ACCESS_NONE;
    R_FDL_Execute( &req );
    
    while( R_FDL_BUSY == req.status_enu )
    {
        R_FDL_Handler();
    }
    if( R_FDL_OK != req.status_enu )
    {   
        /* Error handler */
        while( 1 );
    }
    
    /* 3.擦除要写的块 */
    req.command_enu     = R_FDL_CMD_ERASE;
    req.idx_u32         = 0;
    req.cnt_u16         = 1;
    req.accessType_enu  = R_FDL_ACCESS_USER;
    R_FDL_Execute( &req );
    
    while( R_FDL_BUSY == req.status_enu )
    {
        R_FDL_Handler();
    }
    if( R_FDL_OK != req.status_enu )
    {   
        /* Error handler */
        while( 1 )
            ;
    }

    /* 4.写入已经擦除的块 */
    req.command_enu     = R_FDL_CMD_WRITE;
    req.idx_u32         = 0x0000;
    req.cnt_u16         = 0x8;
    req.bufAddr_u32     = (uint32_t)( &wBuf_au08[0] );
    req.accessType_enu  = R_FDL_ACCESS_USER;
    R_FDL_Execute( &req );
    while( R_FDL_BUSY == req.status_enu )
    {
        R_FDL_Handler();
    }
    if( R_FDL_OK != req.status_enu )
    {   
        /* Error handler */
        while( 1 )
            ;
    }

    /* 5.读取写入的数据*/
    req.command_enu     = R_FDL_CMD_READ;
    req.idx_u32         = 0x0000;
    req.cnt_u16         = 0x8;
    req.bufAddr_u32     = (uint32_t)( &rBuf_au32[0] );
    req.accessType_enu  = R_FDL_ACCESS_USER;
    R_FDL_Execute( &req );
    while( R_FDL_BUSY == req.status_enu )
    {
        R_FDL_Handler();
    }
    if( R_FDL_OK != req.status_enu )
    {   
        /* Error handler */
        while( 1 )
            ;
    }