C++ (Cpp) SPI_Flash_Write_Page Examples

Example #1

File: flash.c Project: Yegz/STM32_Project

void SPI_Flash_Write_NoCheck(u8* pBuffer, u32 WriteAddr, u16 NumByteToWrite)   
{ 			 		 
	u16 pageremain;	
    
	pageremain = W25X_FLASH_PAGE_SIZE - WriteAddr%W25X_FLASH_PAGE_SIZE; 
	if(NumByteToWrite <= pageremain)
        pageremain = NumByteToWrite;
	while(1)
	{	   
		SPI_Flash_Write_Page(pBuffer, WriteAddr, pageremain);
		if(NumByteToWrite == pageremain)
            break;
	 	else                                               // NumByteToWrite>pageremain
		{
			pBuffer += pageremain;
			WriteAddr += pageremain;	

			NumByteToWrite -= pageremain;			  
			if(NumByteToWrite > W25X_FLASH_PAGE_SIZE)
                pageremain = W25X_FLASH_PAGE_SIZE;
			else 
                pageremain = NumByteToWrite;   
		}
	};	    
} 

Example #2

File: spi_flash.c Project: ngocthanhtnt/ledshow

//无检验写SPI FLASH 
//必须确保所写的地址范围内的数据全部为0XFF,否则在非0XFF处写入的数据将失败!
//具有自动换页功能 
//在指定地址开始写入指定长度的数据,但是要确保地址不越界!
//pBuffer:数据存储区
//WriteAddr:开始写入的地址(24bit)
//NumByteToWrite:要写入的字节数(最大65535)
//CHECK OK
void SPI_Flash_Write_NoCheck(u8* pBuffer,u32 WriteAddr,u16 NumByteToWrite)   
{ 			 		 
	u16 pageremain;	   
	pageremain=256-WriteAddr%256; //单页剩余的字节数		 	    
	if(NumByteToWrite<=pageremain)pageremain=NumByteToWrite;//不大于256个字节
	while(1)
	{	   
		SPI_Flash_Write_Page(pBuffer,WriteAddr,pageremain);
		if(NumByteToWrite==pageremain)break;//写入结束了
	 	else //NumByteToWrite>pageremain
		{
			pBuffer+=pageremain;
			WriteAddr+=pageremain;	

			NumByteToWrite-=pageremain;			  //减去已经写入了的字节数
			if(NumByteToWrite>256)pageremain=256; //一次可以写入256个字节
			else pageremain=NumByteToWrite; 	  //不够256个字节了
		}
	};	    
}