w25q64写大数据问题

xiaowang2288

 SPI_Flash_Write((u8*)TEXT_Buffer,15,SIZE)这个函数，能自动换页吗？用这个函数（spi方式）写25q64一次只能写5800个字节，为什么 ？
用串口输出的。

as564335sa

//????????flash??*data??????????
//???????·
//?????¤??
void SPI_Flash_Write(u8 *data,u32 WriteAddr,u16 length)
{
u8 bt1;
u16 add_temp,i;
SPI_FLASH_Write_Enable();
SPI_CS_L;
SPI_ReadWrite(W25X_PageProgram);
bt1=WriteAddr>>16;
SPI_ReadWrite(bt1);
bt1=WriteAddr>>8;
SPI_ReadWrite(bt1);
bt1=WriteAddr&0xff;
SPI_ReadWrite(bt1);
//SPI_ReadWrite(*data);
add_temp=bt1;
i=0;
do
{
bt1=*data;
SPI_ReadWrite(bt1);
i++;
data++;
WriteAddr++;
add_temp++;
if((add_temp>0xff)&&(i<length))//????????????
{
add_temp=0;
SPI_CS_H;
SPI_Flash_Wait_Busy();//???????????ê
SPI_FLASH_Write_Enable();
SPI_CS_L;
SPI_ReadWrite(W25X_PageProgram);//????
bt1=WriteAddr>>16;
SPI_ReadWrite(bt1);
bt1=WriteAddr>>8;
SPI_ReadWrite(bt1);
bt1=WriteAddr&0xff;
SPI_ReadWrite(bt1);
}
}while(i<length);
SPI_CS_H;
SPI_Flash_Wait_Busy();
}

我这个函数可以自动换页，我的是w25q16>

八度空间

详细看下数据手册怎么讲的，有具体的操作说明的

xiaowang2288

回复【3楼】as564335sa:
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我先试一下，先谢了。