/**
* @brief Writes a half-word buffer to the FSMC NOR memory. This function
* must be used only with S29GL128P NOR memory.
* @param pBuffer: pointer to buffer.
* @param WriteAddr: NOR memory internal address from which the data will be
* written.
* @param NumHalfwordToWrite: number of Half words to write.
* The maximum allowed value is 32 Half words (64 bytes).
* @retval NOR_Status: The returned value can be: NOR_SUCCESS, NOR_ERROR
* or NOR_TIMEOUT
*/
NOR_Status NOR_ProgramBuffer(uint16_t* pBuffer, uint32_t WriteAddr, uint32_t NumHalfwordToWrite)
{
uint32_t lastloadedaddress = 0x00;
uint32_t currentaddress = 0x00;
uint32_t endaddress = 0x00;
/*!< Initialize variables */
currentaddress = WriteAddr;
endaddress = WriteAddr + NumHalfwordToWrite - 1;
lastloadedaddress = WriteAddr;
/*!< Issue unlock command sequence */
NOR_WRITE(ADDR_SHIFT(0x00555), 0x00AA);
NOR_WRITE(ADDR_SHIFT(0x02AA), 0x0055);
/*!< Write Write Buffer Load Command */
NOR_WRITE(ADDR_SHIFT(WriteAddr), 0x0025);
NOR_WRITE(ADDR_SHIFT(WriteAddr), (NumHalfwordToWrite - 1));
/*!< Load Data into NOR Buffer */
while(currentaddress <= endaddress)
{
/*!< Store last loaded address & data value (for polling) */
lastloadedaddress = currentaddress;
NOR_WRITE(ADDR_SHIFT(currentaddress), *pBuffer++);
currentaddress += 1;
}
NOR_WRITE(ADDR_SHIFT(lastloadedaddress), 0x29);
return(NOR_GetStatus(Program_Timeout));
}
/**
* @brief Writes a half-word buffer to the FMC NOR memory. This function
* must be used only with S29GL128P NOR memory.
* @param pBuffer : pointer to buffer.
* uwWriteAddress : NOR memory internal address from which the data
* will be written.
* uwBufferSize : number of Half words to write. The maximum allowed
* value is 32 Half words (64 bytes).
* @retval NOR_Status: The returned value can be: NOR_SUCCESS, NOR_ERROR
* or NOR_TIMEOUT.
*/
NOR_Status NOR_ProgramBuffer(uint16_t* pBuffer, uint32_t uwWriteAddress, uint32_t uwBufferSize)
{
uint32_t lastloadedaddress = 0;
uint32_t currentaddress = 0;
uint32_t endaddress = 0;
/* Initialize variables */
currentaddress = uwWriteAddress;
endaddress = uwWriteAddress + uwBufferSize - 1;
lastloadedaddress = uwWriteAddress;
/* Issue unlock command sequence */
NOR_WRITE(ADDR_SHIFT(0x00555), 0x00AA);
NOR_WRITE(ADDR_SHIFT(0x02AA), 0x0055);
/* Write Buffer Load Command */
NOR_WRITE(ADDR_SHIFT(uwWriteAddress), 0x0025);
NOR_WRITE(ADDR_SHIFT(uwWriteAddress), (uwBufferSize - 1));
/* Load Data into NOR Buffer */
while(currentaddress <= endaddress)
{
/* Store last loaded address & data value (for polling) */
lastloadedaddress = currentaddress;
NOR_WRITE(ADDR_SHIFT(currentaddress), *pBuffer++);
currentaddress += 1;
}
NOR_WRITE(ADDR_SHIFT(lastloadedaddress), 0x29);
return(NOR_GetStatus(PROGRAM_TIMEOUT));
}
/**
* @brief Writes a half-word to the NOR memory.
* This function returns the NOR memory status after block erase operation.
* @param uwWriteAddress : NOR memory internal address to write to.
* uhData : Data to write.
* @retval NOR_Status: The returned value can be: NOR_SUCCESS, NOR_ERROR
* or NOR_TIMEOUT.
*/
NOR_Status NOR_WriteHalfWord(uint32_t uwWriteAddress, uint16_t uhData)
{
NOR_WRITE(ADDR_SHIFT(0x0555), 0x00AA);
NOR_WRITE(ADDR_SHIFT(0x02AA), 0x0055);
NOR_WRITE(ADDR_SHIFT(0x0555), 0x00A0);
NOR_WRITE((NOR_BANK_ADDR + uwWriteAddress), uhData);
return (NOR_GetStatus(PROGRAM_TIMEOUT));
}
/**
* @brief Writes a half-word to the NOR memory.
* @param WriteAddr: NOR memory internal address to write to.
* @param Data: Data to write.
* @retval NOR_Status: The returned value can be: NOR_SUCCESS, NOR_ERROR
* or NOR_TIMEOUT
*/
NOR_Status NOR_WriteHalfWord(uint32_t WriteAddr, uint16_t Data)
{
NOR_WRITE(ADDR_SHIFT(0x0555), 0x00AA);
NOR_WRITE(ADDR_SHIFT(0x02AA), 0x0055);
NOR_WRITE(ADDR_SHIFT(0x0555), 0x00A0);
NOR_WRITE((Bank1_NOR2_ADDR + WriteAddr), Data);
return (NOR_GetStatus(Program_Timeout));
}
/*
*********************************************************************************************************
* 函 数 名: NOR_EraseSector
* 功能说明: 擦除NOR Flash指定的扇区
* 形 参: 扇区地址
* 返 回 值: NOR_SUCCESS, NOR_ERROR, NOR_TIMEOUT
*********************************************************************************************************
*/
uint8_t NOR_EraseSector(uint32_t _uiBlockAddr)
{
NOR_WRITE(ADDR_SHIFT(0x0555), 0x00AA);
NOR_WRITE(ADDR_SHIFT(0x02AA), 0x0055);
NOR_WRITE(ADDR_SHIFT(0x0555), 0x0080);
NOR_WRITE(ADDR_SHIFT(0x0555), 0x00AA);
NOR_WRITE(ADDR_SHIFT(0x02AA), 0x0055);
NOR_WRITE((NOR_FLASH_ADDR + _uiBlockAddr), 0x30);
return (NOR_GetStatus(BlockErase_Timeout));
}
/*
*********************************************************************************************************
* 函 数 名: NOR_StartEraseChip
* 功能说明: 开始擦除NOR Flash整个芯片， 不等待结束
* 形 参: 无
* 返 回 值: 0表示成功
*********************************************************************************************************
*/
void NOR_StartEraseChip(void)
{
NOR_WRITE(ADDR_SHIFT(0x0555), 0x00AA);
NOR_WRITE(ADDR_SHIFT(0x02AA), 0x0055);
NOR_WRITE(ADDR_SHIFT(0x0555), 0x0080);
NOR_WRITE(ADDR_SHIFT(0x0555), 0x00AA);
NOR_WRITE(ADDR_SHIFT(0x02AA), 0x0055);
NOR_WRITE(ADDR_SHIFT(0x0555), 0x0010);
NOR_GetStatus(1000);
}
/*
*********************************************************************************************************
* 函 数 名: NOR_EraseChip
* 功能说明: 擦除NOR Flash整个芯片
* 形 参: 无
* 返 回 值: 0表示成功
*********************************************************************************************************
*/
uint8_t NOR_EraseChip(void)
{
NOR_WRITE(ADDR_SHIFT(0x0555), 0x00AA);
NOR_WRITE(ADDR_SHIFT(0x02AA), 0x0055);
NOR_WRITE(ADDR_SHIFT(0x0555), 0x0080);
NOR_WRITE(ADDR_SHIFT(0x0555), 0x00AA);
NOR_WRITE(ADDR_SHIFT(0x02AA), 0x0055);
NOR_WRITE(ADDR_SHIFT(0x0555), 0x0010);
return (NOR_GetStatus(ChipErase_Timeout));
}
/**
* @brief Erases the entire chip.
* @param None
* @retval NOR_Status: The returned value can be: NOR_SUCCESS, NOR_ERROR
* or NOR_TIMEOUT
*/
NOR_Status NOR_EraseChip(void)
{
NOR_WRITE(ADDR_SHIFT(0x0555), 0x00AA);
NOR_WRITE(ADDR_SHIFT(0x02AA), 0x0055);
NOR_WRITE(ADDR_SHIFT(0x0555), 0x0080);
NOR_WRITE(ADDR_SHIFT(0x0555), 0x00AA);
NOR_WRITE(ADDR_SHIFT(0x02AA), 0x0055);
NOR_WRITE(ADDR_SHIFT(0x0555), 0x0010);
return (NOR_GetStatus(CHIPERASE_TIMEOUT));
}
/**
* @brief Performs a block erase operation giving its address.
* This function returns the NOR memory status after block erase operation.
* @param uwBlockAddress: Address of the block to erase.
* @retval NOR_Status: The returned value can be: NOR_SUCCESS, NOR_ERROR
* or NOR_TIMEOUT.
*/
NOR_Status NOR_EraseBlock(uint32_t uwBlockAddress)
{
NOR_WRITE(ADDR_SHIFT(0x0555), 0x00AA);
NOR_WRITE(ADDR_SHIFT(0x02AA), 0x0055);
NOR_WRITE(ADDR_SHIFT(0x0555), 0x0080);
NOR_WRITE(ADDR_SHIFT(0x0555), 0x00AA);
NOR_WRITE(ADDR_SHIFT(0x02AA), 0x0055);
NOR_WRITE((NOR_BANK_ADDR + uwBlockAddress), 0x30);
return (NOR_GetStatus(BLOCKERASE_TIMEOUT));
}
/**
* @brief Erases the specified Nor memory block.
* @param BlockAddr: address of the block to erase.
* @retval NOR_Status: The returned value can be: NOR_SUCCESS, NOR_ERROR
* or NOR_TIMEOUT
*/
NOR_Status NOR_EraseBlock(uint32_t BlockAddr)
{
NOR_WRITE(ADDR_SHIFT(0x0555), 0x00AA);
NOR_WRITE(ADDR_SHIFT(0x02AA), 0x0055);
NOR_WRITE(ADDR_SHIFT(0x0555), 0x0080);
NOR_WRITE(ADDR_SHIFT(0x0555), 0x00AA);
NOR_WRITE(ADDR_SHIFT(0x02AA), 0x0055);
NOR_WRITE((Bank1_NOR2_ADDR + BlockAddr), 0x30);
return (NOR_GetStatus(BlockErase_Timeout));
}
