/**
* @brief Writes more than one byte to the FLASH with a single WRITE cycle
* (Page WRITE sequence).
* @note The number of byte can't exceed the FLASH page size.
* @param pBuffer: pointer to the buffer containing the data to be written
* to the FLASH.
* @param WriteAddr: FLASH's internal address to write to.
* @param NumByteToWrite: number of bytes to write to the FLASH, must be equal
* or less than "sFLASH_PAGESIZE" value.
* @retval None
*/
void sFLASH_WritePage(uint8_t* pBuffer, uint32_t WriteAddr, uint16_t NumByteToWrite)
{
/*!< Enable the write access to the FLASH */
sFLASH_WriteEnable();
/*!< Select the FLASH: Chip Select low */
sFLASH_CS_LOW();
/*!< Send "Write to Memory " instruction */
sFLASH_SendByte(sFLASH_CMD_WRITE);
/*!< Send WriteAddr high nibble address byte to write to */
sFLASH_SendByte((WriteAddr & 0xFF0000) >> 16);
/*!< Send WriteAddr medium nibble address byte to write to */
sFLASH_SendByte((WriteAddr & 0xFF00) >> 8);
/*!< Send WriteAddr low nibble address byte to write to */
sFLASH_SendByte(WriteAddr & 0xFF);
/*!< while there is data to be written on the FLASH */
while (NumByteToWrite--)
{
/*!< Send the current byte */
sFLASH_SendByte(*pBuffer);
/*!< Point on the next byte to be written */
pBuffer++;
}
/*!< Deselect the FLASH: Chip Select high */
sFLASH_CS_HIGH();
/*!< Wait the end of Flash writing */
sFLASH_WaitForWriteEnd();
}
/**
* @brief Enables the write access to the FLASH.
* @param None
* @retval None
*/
void sFLASH_WriteStatusForWrite(void)
{
#if 1
/*!< Enable the write access to the FLASH */
sFLASH_WriteEnable(0);
/*!< Select the FLASH: Chip Select low */
sFLASH_CS_LOW();
/*!< Send "Write Enable" instruction */
sFLASH_SendByte(sFLASH_CMD_WRSR);
/*!< Send "Write Enable" instruction */
sFLASH_SendByte(0x00);
sFLASH_SendByte(0x02);
/*!< Deselect the FLASH: Chip Select high */
sFLASH_CS_HIGH();
sFLASH_WaitForWriteEnd(0);
#endif
/*!< Select the FLASH: Chip Select low */
sFLASH_CS_LOW();
/*!< Send "Write Enable" instruction */
sFLASH_SendByte(sFLASH_CMD_RDCR);
/*!< Send "Write Enable" instruction */
sFLASH_SendByte(sFLASH_DUMMY_BYTE);
/*!< Deselect the FLASH: Chip Select hig */
sFLASH_CS_HIGH();
}
/***********************************************
函数名称：sFLASH_EraseSector
功 能：擦除W25Q64 FLASH整个芯片,
需要大概20s左右的时间。
入口参数：无
返 回 值：unsigned char：读出的数据。
备 注：无
************************************************/
void sFLASH_EraseFlash(void)
{ //芯片写使能
sFLASH_WriteEnable();
//芯片使能
W25Q64_WCS_Clr();
//发送扇区擦除指令
sFLASH_SendByte(sFLASH_CMD_CE);
//芯片禁止
W25Q64_WCS_Set();
//等待写完成
sFLASH_WaitForWriteEnd();
}
void sFLASH_GlobalUnprotect(void)
{
sFLASH_WriteEnable();
sFLASH_CS_LOW();
sFLASH_SendByte(sFLASH_CMD_WRSR);
sFLASH_SendByte(0);
/*!< Deselect the FLASH: Chip Select high */
sFLASH_CS_HIGH();
}
/**
* @brief Erases the entire FLASH.
* @param None
* @retval None
*/
void sFLASH_EraseBulk(void)
{
/*!< Send write enable instruction */
sFLASH_WriteEnable();
/*!< Bulk Erase */
/*!< Select the FLASH: Chip Select low */
sFLASH_CS_LOW();
/*!< Send Bulk Erase instruction */
sFLASH_SendByte(sFLASH_CMD_BE);
/*!< Deselect the FLASH: Chip Select high */
sFLASH_CS_HIGH();
/*!< Wait the end of Flash writing */
sFLASH_WaitForWriteEnd();
}
/**
* @brief Erases the entire FLASH.
* @param None
* @retval None
*/
void sFLASH_EraseBulk(void)
{
/* Enable the write access to the FLASH */
sFLASH_WriteEnable();
/* Bulk Erase */
/* Select the FLASH: Chip Select low */
sFLASH_CS_LOW();
/* Send Bulk Erase instruction */
sFLASH_SendByte(sFLASH_CMD_BE);
/* Deselect the FLASH: Chip Select high */
sFLASH_CS_HIGH();
/* Wait till the end of Flash writing */
sFLASH_WaitForWriteEnd();
}
/***********************************************
函数名称：sFLASH_64KBEraseSector
功 能：擦除W25Q64 FLASH的一个块。
入口参数：无
返 回 值：无
备 注：无
************************************************/
void sFLASH_64KBEraseSector(FLADDR SectorAddr)
{ //芯片写使能
sFLASH_WriteEnable();
//芯片使能
W25Q64_WCS_Clr();
//发送扇区擦除指令
sFLASH_SendByte(sFLASH_CMD_BE);
//发送24位地址
sFLASH_SendByte((SectorAddr & 0xFF0000) >> 16);
sFLASH_SendByte((SectorAddr & 0xFF00) >> 8);
sFLASH_SendByte(SectorAddr & 0xFF);
//芯片禁止
W25Q64_WCS_Set();
//等待写完成
sFLASH_WaitForWriteEnd();
}
/***********************************************
函数名称：sFLASH_WritePage
功 能：向W25Q64 FLASH写入一页数据。
入口参数：pBuffer:存放写入的数据的缓冲区，
WriteAddr：开始写入的地址，
NumByteToWrite：写入的字节数
返 回 值：无：读出的数据。
备 注：无
************************************************/
void sFLASH_WritePage(unsigned char* pBuffer, FLADDR WriteAddr, unsigned int NumByteToWrite)
{//芯片写使能，写之前需写使能，否则无法写入
sFLASH_WriteEnable();
//芯片使能
W25Q64_WCS_Clr();
//发送写指令
sFLASH_SendByte(sFLASH_CMD_PAGEPRO);
//发送24位地址
sFLASH_SendByte((WriteAddr & 0xFF0000) >> 16);
sFLASH_SendByte((WriteAddr & 0xFF00) >> 8);
sFLASH_SendByte(WriteAddr & 0xFF);
//循环按字节写入
while (NumByteToWrite--)
{sFLASH_SendByte(*pBuffer);
pBuffer++;
}
//芯片禁止
W25Q64_WCS_Set();
//等待写完成
sFLASH_WaitForWriteEnd();
}
/**
* @brief Erases the specified FLASH sector.
* @param SectorAddr: address of the sector to erase.
* @retval None
*/
void sFLASH_EraseSector(uint32_t SectorAddr)
{
/*!< Send write enable instruction */
sFLASH_WriteEnable();
/*!< Sector Erase */
/*!< Select the FLASH: Chip Select low */
sFLASH_CS_LOW();
/*!< Send Sector Erase instruction */
sFLASH_SendByte(sFLASH_CMD_SE);
/*!< Send SectorAddr high nibble address byte */
sFLASH_SendByte((SectorAddr & 0xFF0000) >> 16);
/*!< Send SectorAddr medium nibble address byte */
sFLASH_SendByte((SectorAddr & 0xFF00) >> 8);
/*!< Send SectorAddr low nibble address byte */
sFLASH_SendByte(SectorAddr & 0xFF);
/*!< Deselect the FLASH: Chip Select high */
sFLASH_CS_HIGH();
/*!< Wait the end of Flash writing */
sFLASH_WaitForWriteEnd();
}
void sFLASH_EraseBlock32k(unsigned int SectorAddr)
{
__IO unsigned int status;
/*!< Send write enable instruction */
sFLASH_WriteEnable();
/*!< Sector Erase */
/*!< Select the FLASH: Chip Select low */
sFLASH_CS_LOW();
/*!< Send Sector Erase instruction */
sFLASH_SendByte(sFLASH_CMD_32K_ERASE);
/*!< Send SectorAddr high nibble address byte */
sFLASH_SendByte((SectorAddr & 0xFF0000) >> 16);
/*!< Send SectorAddr medium nibble address byte */
sFLASH_SendByte((SectorAddr & 0xFF00) >> 8);
/*!< Send SectorAddr low nibble address byte */
sFLASH_SendByte(SectorAddr & 0xFF);
/*!< Deselect the FLASH: Chip Select high */
sFLASH_CS_HIGH();
/*!< Wait the end of Flash writing */
sFLASH_WaitForWriteEnd();
}
