void STMFLASH_Write(u32 WriteAddr,u16 *pBuffer,u16 NumToWrite) { u32 secpos; u16 secoff; u16 secremain; u16 i; u32 offaddr; if(WriteAddr<STM32_FLASH_BASE||(WriteAddr>=(STM32_FLASH_BASE+1024*STM32_FLASH_SIZE)))return; FLASH_Unlock(); offaddr=WriteAddr-STM32_FLASH_BASE; secpos=offaddr/STM32_SECTOR_SIZE; secoff=(offaddr%STM32_SECTOR_SIZE)/2; secremain=STM32_SECTOR_SIZE/2-secoff; if(NumToWrite<=secremain) { secremain=NumToWrite; } else { return; } while(1) { STMFLASH_Read(secpos*STM32_SECTOR_SIZE+STM32_FLASH_BASE,STMFLASH_BUF,STM32_SECTOR_SIZE/2); for(i=0;i<secremain;i++) { if(STMFLASH_BUF[secoff+i]!=0XFFFF)break; } if(i<secremain) { FLASH_ErasePage(secpos*STM32_SECTOR_SIZE+STM32_FLASH_BASE); for(i=0;i<secremain;i++) { STMFLASH_BUF[i+secoff]=pBuffer[i]; } STMFLASH_Write_NoCheck(secpos*STM32_SECTOR_SIZE+STM32_FLASH_BASE,STMFLASH_BUF,STM32_SECTOR_SIZE/2); }else STMFLASH_Write_NoCheck(WriteAddr,pBuffer,secremain); if(NumToWrite==secremain)break; else { secpos++; secoff=0; pBuffer+=secremain; WriteAddr+=secremain; NumToWrite-=secremain; if(NumToWrite>(STM32_SECTOR_SIZE/2))secremain=STM32_SECTOR_SIZE/2;//ÏÂÒ»¸öÉÈÇø»¹ÊÇд²»Íê else secremain=NumToWrite; } }; FLASH_Lock(); }
void STMFLASH_Write(u32 WriteAddr,u16 *pBuffer,u16 NumToWrite) { u32 secpos; //扇区地址 u16 secoff; //扇区内偏移地址(16位字计算) u16 secremain; //扇区内剩余地址(16位字计算) u16 i; u32 offaddr; //去掉0X08000000后的地址 if(WriteAddr<STM32_FLASH_BASE||(WriteAddr>=(STM32_FLASH_BASE+1024*128)))return;//非法地址 STMFLASH_Unlock(); //解锁 offaddr=WriteAddr-STM32_FLASH_BASE; //实际偏移地址offaddr=.5000 secpos=offaddr/1024; //扇区号 secoff=(offaddr%1024)/2; //在扇区内的偏移(2个字节为基本单位.) secremain=512-secoff; //扇区剩余空间大小 if(NumToWrite<=secremain)secremain=NumToWrite;//不大于该扇区范围 while(1) { STMFLASH_Read(secpos*1024+STM32_FLASH_BASE,STMFLASH_BUF,512);//读出整个扇区的内容 for(i=0;i<secremain;i++)//校验数据 { if(STMFLASH_BUF[secoff+i]!=0XFFFF)break;//需要擦除 } if(i<secremain)//需要擦除 { STMFLASH_ErasePage(secpos*1024+STM32_FLASH_BASE);//擦除这个扇区 for(i=0;i<secremain;i++)//复制 { STMFLASH_BUF[i+secoff]=pBuffer[i]; } STMFLASH_Write_NoCheck(secpos*1024+STM32_FLASH_BASE,STMFLASH_BUF,512);//写入整个扇区 }else STMFLASH_Write_NoCheck(WriteAddr,pBuffer,secremain);//写已经擦除了的,直接写入扇区剩余区间. if(NumToWrite==secremain)break;//写入结束了 else//写入未结束 { // printf("扇区加1\r\n"); secpos++; //扇区地址增1 secoff=0; //偏移位置为0 pBuffer+=secremain; //指针偏移 WriteAddr+=secremain; //写地址偏移 NumToWrite-=secremain; //字节(16位)数递减 if(NumToWrite>512) secremain=512;//下一个扇区还是写不完 else secremain=NumToWrite;//下一个扇区可以写完了 } }; STMFLASH_Lock();//上锁 }
void STMFLASH_Write(u32 WriteAddr,u16 *pBuffer,u16 NumToWrite) { u32 secpos; //扇区地址 u16 secoff; //扇区内偏移地址(16位字计算) u16 secremain; //扇区内剩余地址(16位字计算) u16 i; u32 offaddr; //去掉0X08000000后的地址 if(WriteAddr<STM32_FLASH_BASE||(WriteAddr>=(STM32_FLASH_BASE+1024*STM32_FLASH_SIZE)))return;//非法地址 FLASH_Unlock(); //解锁 offaddr=WriteAddr-STM32_FLASH_BASE; //实际偏移地址. secpos=offaddr/STM_SECTOR_SIZE; //扇区地址 0~127 for STM32F103RBT6 secoff=(offaddr%STM_SECTOR_SIZE)/2; //在扇区内的偏移(2个字节为基本单位.) secremain=STM_SECTOR_SIZE/2-secoff; //扇区剩余空间大小 if(NumToWrite<=secremain)secremain=NumToWrite;//不大于该扇区范围 while(1) { STMFLASH_Read(secpos*STM_SECTOR_SIZE+STM32_FLASH_BASE,STMFLASH_BUF,STM_SECTOR_SIZE/2);//读出整个扇区的内容 for(i=0;i<secremain;i++)//校验数据 { if(STMFLASH_BUF[secoff+i]!=0XFFFF)break;//需要擦除 } if(i<secremain)//需要擦除 { FLASH_ErasePage(secpos*STM_SECTOR_SIZE+STM32_FLASH_BASE);//擦除这个扇区 for(i=0;i<secremain;i++)//复制 { STMFLASH_BUF[i+secoff]=pBuffer[i]; } STMFLASH_Write_NoCheck(secpos*STM_SECTOR_SIZE+STM32_FLASH_BASE,STMFLASH_BUF,STM_SECTOR_SIZE/2);//写入整个扇区 }else STMFLASH_Write_NoCheck(WriteAddr,pBuffer,secremain);//写已经擦除了的,直接写入扇区剩余区间. if(NumToWrite==secremain)break;//写入结束了 else//写入未结束 { secpos++; //扇区地址增1 secoff=0; //偏移位置为0 pBuffer+=secremain; //指针偏移 WriteAddr+=secremain; //写地址偏移 NumToWrite-=secremain; //字节(16位)数递减 if(NumToWrite>(STM_SECTOR_SIZE/2))secremain=STM_SECTOR_SIZE/2;//下一个扇区还是写不完 else secremain=NumToWrite;//下一个扇区可以写完了 } }; FLASH_Lock();//上锁 }
void STMFLASH_WriteOnePage(u32 WriteAddr,u16 *pBuffer,u16 NumToWrite) { u32 secpos; u32 offaddr; if(WriteAddr<STM32_FLASH_BASE||(WriteAddr>=(STM32_FLASH_BASE+1024*STM32_FLASH_SIZE))) { return; } FLASH_Unlock(); offaddr=WriteAddr-STM32_FLASH_BASE; secpos=offaddr/STM32_SECTOR_SIZE; FLASH_ErasePage(secpos*STM32_SECTOR_SIZE+STM32_FLASH_BASE); STMFLASH_Write_NoCheck(WriteAddr,pBuffer,NumToWrite); FLASH_Lock(); }