SPI_FLASH_Init();
SPI_FLASH_BufferRead((uint8_t *)posbufs,4096 + (mPOSCOUNT.posoldCount%60000) * 32,32);

/*******************************************************************************
* Function Name  : SPI_FLASH_Init
* Description    : Initializes the peripherals used by the SPI FLASH driver.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void SPI_FLASH_Init(void)
{    CMU_ClockEnable(cmuClock_GPIO, true);// 初始化模拟SPI的IO口// SPI_FLASH_SCK_S  PA5GPIO_DriveModeSet(SPI_FLASH_SCK_PORT_S, gpioDriveModeStandard);                 /* ÉèÖÃÇý¶¯µçÁ÷ΪĬÈÏ´óС       */GPIO_PinModeSet(SPI_FLASH_SCK_PORT_S, SPI_FLASH_SCK_PIN_S, gpioModePushPullDrive, 1); // SPI_FLASH_MOSI_S PA7GPIO_DriveModeSet(SPI_FLASH_MOSI_PORY_S, gpioDriveModeStandard);                 /* ÉèÖÃÇý¶¯µçÁ÷ΪĬÈÏ´óС       */GPIO_PinModeSet(SPI_FLASH_MOSI_PORY_S, SPI_FLASH_MOSI_PIN_S, gpioModePushPullDrive, 1); // SPI_FLASH_NSS_S  PA4GPIO_DriveModeSet(SPI_FLASH_NSS_PORT_S, gpioDriveModeStandard);                 /* ÉèÖÃÇý¶¯µçÁ÷ΪĬÈÏ´óС       */GPIO_PinModeSet(SPI_FLASH_NSS_PORT_S, SPI_FLASH_NSS_PIN_S, gpioModePushPullDrive, 1); // SPI_FLASH_MISO_S PA6GPIO_PinModeSet(SPI_FLASH_MISO_PORY_S, SPI_FLASH_MISO_PIN_S, gpioModeInput, 1);SPI_FLASH_NSS_S_1;    SPI_FLASH_SCK_S_0;SPI_FLASH_CS_HIGH();
//    SPI_FLASH_ReadByte();
}

/*******************************************************************************
* Function Name  : SPI_FLASH_BufferRead
* Description    : Reads a block of data from the FLASH.
* Input          : - pBuffer : pointer to the buffer that receives the data read
*                    from the FLASH.
*                  - ReadAddr : FLASH's internal address to read from.
*                  - NumByteToRead : number of bytes to read from the FLASH.
* Output         : None
* Return         : None
*******************************************************************************/
void SPI_FLASH_BufferRead(u8* pBuffer, u32 ReadAddr, u16 NumByteToRead)
{/* Select the FLASH: Chip Select low */SPI_FLASH_CS_LOW();/* Send "Read from Memory " instruction */SPI_FLASH_SendByte(W25X_ReadData);/* Send ReadAddr high nibble address byte to read from */SPI_FLASH_SendByte((ReadAddr & 0xFF0000) >> 16);/* Send ReadAddr medium nibble address byte to read from */SPI_FLASH_SendByte((ReadAddr& 0xFF00) >> 8);/* Send ReadAddr low nibble address byte to read from */SPI_FLASH_SendByte(ReadAddr & 0xFF);while (NumByteToRead--) /* while there is data to be read */{ //SPI_FLASH_SendByte(Dummy_Byte);*pBuffer = SPI_FLASH_ReadByte();//模拟SPI读取/* Point to the next location where the byte read will be saved */pBuffer++;}/* Deselect the FLASH: Chip Select high */SPI_FLASH_CS_HIGH();
}

/******************************************************************- ¹¦ÄÜÃèÊö£ºIOÄ£ÄâSPI£¬¶ÁÈ¡Ò»¸ö×Ö½Ú- Á¥ÊôÄ£¿é£º- º¯ÊýÊôÐÔ£ºÄÚ²¿- ²ÎÊý˵Ã÷£ºÎÞ- ·µ»Ø˵Ã÷£º·µ»Ø¶Áµ½µÄ×Ö½Ú******************************************************************/u8 SPI_FLASH_ReadByte(void) //SPI¶ÁÒ»¸ö×Ö½Ú
{ u8 i;u8 byte;__NOP();__NOP();__NOP();__NOP();byte=0;for (i=0; i<8; i++){byte <<= 1;SPI_FLASH_SCK_S_1;__NOP();__NOP();__NOP();__NOP();if(SPI_FLASH_MISO_S_G != 0){byte |= 1;    //Wait SDO to go Hi
        }SPI_FLASH_SCK_S_0;__NOP();__NOP();__NOP();__NOP();}return byte;}

OS_ENTER_CRITICAL(); /* Tell uC/OS-II that we are starting an ISR*/DebugValue = 1;SPI_FLASH_Init();SPI_FLASH_BufferRead((uint8_t *)posbufs,4096 + (mPOSCOUNT.posoldCount%60000) * 32,32);OS_EXIT_CRITICAL();