drvfmc.c

cortex-m0 LCD1602程序

/* Description:                                                                                            */
/*               Disable APROM update function.                                                            */
/*                                                                                                         */
/* Note1:        Only NuMicro NUC1x0xxxCx Series (Ex. NUC140VE3CN) support this function.                  */
/*                                                                                                         */
/* Note2:                                                                                                  */
/*               Please make sure that Register Write-Protection Function has been disabled before using   */
/*               this function to disable AP update function.                                              */
/*               User can check the status of Register Write-Protection Function                           */
/*               with DrvSYS_IsProtectedRegLocked().                                                       */
/*---------------------------------------------------------------------------------------------------------*/
void DrvFMC_DisableAPUpdate(void)
{   
    FMC->ISPCON.APUEN = 0;
}

/*---------------------------------------------------------------------------------------------------------*/
/* Function: DrvFMC_EnablePowerSaving                                                                      */
/*                                                                                                         */
/* Parameters:                                                                                             */
/*               None                                                                                      */
/*                                                                                                         */
/* Returns:                                                                                                */
/*               None                                                                                      */
/*                                                                                                         */
/* Description:                                                                                            */
/*               Enable flash power saving function                                                        */
/*                                                                                                         */
/* Note:                                                                                                   */
/*               Please make sure that Register Write-Protection Function has been disabled before using   */
/*               this function to enable flash power saving function.                                      */
/*               User can check the status of Register Write-Protection Function                           */
/*               with DrvSYS_IsProtectedRegLocked().                                                       */
/*---------------------------------------------------------------------------------------------------------*/
void DrvFMC_EnablePowerSaving(void)
{   
    FMC->FATCON.FPSEN = 1;
}

/*---------------------------------------------------------------------------------------------------------*/
/* Function: DrvFMC_DisablePowerSaving                                                                     */
/*                                                                                                         */
/* Parameters:                                                                                             */
/*               None                                                                                      */
/*                                                                                                         */
/* Returns:                                                                                                */
/*               None                                                                                      */
/*                                                                                                         */
/* Description:                                                                                            */
/*               Disable flash power saving function                                                       */
/*                                                                                                         */
/* Note:                                                                                                   */
/*               Please make sure that Register Write-Protection Function has been disabled before using   */
/*               this function to disable flash power saving function.                                     */
/*               User can check the status of Register Write-Protection Function                           */
/*               with DrvSYS_IsProtectedRegLocked().                                                       */
/*---------------------------------------------------------------------------------------------------------*/
void DrvFMC_DisablePowerSaving(void)
{   
    FMC->FATCON.FPSEN = 0;
}

/*---------------------------------------------------------------------------------------------------------*/
/* Function: DrvFMC_EnableLowFreqOptMode                                                                   */
/*                                                                                                         */
/* Parameters:                                                                                             */
/*               None                                                                                      */
/*                                                                                                         */
/* Returns:                                                                                                */
/*               None                                                                                      */
/*                                                                                                         */
/* Description:                                                                                            */
/*               Enable flash access low frequency optimization mode. It can improve flash access          */
/*               performance when CPU runs at low frequency.                                               */
/*                                                                                                         */
/* Note1:        Only NuMicro NUC1x0xxxCx Series (Ex. NUC140VE3CN) and Low Density Series support          */
/*               this function.                                                                            */
/* Note2:        Set this bit only when HCLK <= 25MHz.                                                     */
/*               If HCLK > 25MHz, CPU will fetch wrong code and cause fail result.                         */
/* Note3:                                                                                                  */
/*               Please make sure that Register Write-Protection Function has been disabled before using   */
/*               this function to enable flash access low frequency optimization mode.                     */
/*               User can check the status of Register Write-Protection Function                           */
/*               with DrvSYS_IsProtectedRegLocked().                                                       */
/*---------------------------------------------------------------------------------------------------------*/
void DrvFMC_EnableLowFreqOptMode(void)
{   
    FMC->FATCON.LFOM = 1;
}


/*---------------------------------------------------------------------------------------------------------*/
/* Function: DrvFMC_DisableLowFreqOptMode                                                                  */
/*                                                                                                         */
/* Parameters:                                                                                             */
/*               None                                                                                      */
/*                                                                                                         */
/* Returns:                                                                                                */
/*               None                                                                                      */
/*                                                                                                         */
/* Description:                                                                                            */
/*               Disable flash access low frequency optimization mode.                                     */
/*                                                                                                         */
/* Note1:        Only NuMicro NUC1x0xxxCx Series (Ex. NUC140VE3CN) and Low Density Series support          */
/*               this function.                                                                            */
/* Note2:                                                                                                  */
/*               Please make sure that Register Write-Protection Function has been disabled before using   */
/*               this function to disable flash access low frequency optimization mode.                    */
/*               User can check the status of Register Write-Protection Function                           */
/*               with DrvSYS_IsProtectedRegLocked().                                                       */
/*---------------------------------------------------------------------------------------------------------*/
void DrvFMC_DisableLowFreqOptMode(void)
{   
    FMC->FATCON.LFOM = 0;
}

/*---------------------------------------------------------------------------------------------------------*/
/* Function: DrvFMC_ReadDataFlashBaseAddr                                                                  */
/*                                                                                                         */
/* Parameters:                                                                                             */
/*               None                                                                                      */
/*                                                                                                         */
/* Returns:                                                                                                */
/*               Data Flash base address                                                                   */
/*                                                                                                         */
/* Description:                                                                                            */
/*               Read Data Flash base address                                                              */
/*---------------------------------------------------------------------------------------------------------*/
uint32_t DrvFMC_ReadDataFlashBaseAddr(void)
{   
    return FMC->DFBADR;
}

/*---------------------------------------------------------------------------------------------------------*/
/* Function: DrvFMC_WriteConfig                                                                            */
/*                                                                                                         */
/* Parameters:                                                                                             */
/*               u32data0   - [in]      Config0 data                                                       */
/*               u32data1   - [in]      Config1 data                                                       */
/*                                                                                                         */
/*                                                                                                         */
/* Returns:                                                                                                */
/*               0       Success                                                                           */
/*              <0       Failed when illegal condition occurs                                              */
/*                                                                                                         */
/* Description:                                                                                            */
/*               Erase Config and write data into Config0 and Config1                                      */
/*               The corresponding functions in Config0 & Config1 are listed in FMC section of TRM         */
/*                                                                                                         */
/* Note:                                                                                                   */
/*               Please make sure that Register Write-Protection Function has been disabled before using   */
/*               this function.                                                                            */
/*               User can check the status of Register Write-Protection Function                           */
/*               with DrvSYS_IsProtectedRegLocked().                                                       */
/*---------------------------------------------------------------------------------------------------------*/
int32_t DrvFMC_WriteConfig(uint32_t u32data0, uint32_t u32data1)
{       
    if ( DrvFMC_Erase(CONFIG0) != E_SUCCESS )
        return E_DRVFMC_ERR_ISP_FAIL;
    
    if ( DrvFMC_Write(CONFIG0, u32data0) != E_SUCCESS )
        return E_DRVFMC_ERR_ISP_FAIL;

    return DrvFMC_Write(CONFIG1, u32data1);
}

/*---------------------------------------------------------------------------------------------------------*/
/* Function: DrvFMC_GetVersion                                                                             */
/*                                                                                                         */
/* Parameters:                                                                                             */
/*               None                                                                                      */
/*                                                                                                         */
/* Returns:                                                                                                */
/*               The DrvFMC version number                                                                 */
/*                                                                                                         */
/* Description:                                                                                            */
/*               This function is used to get the DrvFMC version number                                    */
/*---------------------------------------------------------------------------------------------------------*/
uint32_t DrvFMC_GetVersion(void)
{
    return DRVFMC_VERSION_NUM;
}