STM32F103Z-FATFS R0.07e SD 卡 DMA四线传输（源码）

只看该作者 · 2010-3-25 17:12

本帖最后由 linminjun 于 2010-3-25 17:21 编辑

FATFS R0.07e 支持长文件文件名，

SD.rar (335.43 KB)
      f_mount(0, &fs);
      f_open((FIL*)&fsrc, "Hello World.txt", FA_OPEN_ALWAYS | FA_WRITE);
      sdres = f_lseek((FIL*)&fsrc, (&fsrc)->fsize);



      while (1)
      {
            resTemp = f_printf((FIL*)&fsrc, "扫描范围:±%d.%dV  扫描速率:%3dmV/S  电压单位:mV  电流单位:nA \r\n",\
                                                                                       5, 10,\
                                                                                       35 );

            f_puts("\r\n\r\n",(FIL*)&fsrc);
            f_sync((FIL*)&fsrc);
      }

另外请假加密问题：
void PasswordCheckout(void)
{
volatile unsigned int Dev_Serial[3] = {0};
Dev_Serial[0] = *(volatile unsigned char*)(0x1ffff7e8)+1;
Dev_Serial[0] |= (*(volatile unsigned char*)(0x1ffff7e9)-2)<<8;
Dev_Serial[0] |= (*(volatile unsigned char*)(0x1ffff7ea)-1)<<16;
Dev_Serial[0] |= (*(volatile unsigned char*)(0x1ffff7eb)+5)<<24;
Dev_Serial[1] = *(volatile unsigned char*)(0x1ffff7ec)+0;
Dev_Serial[1] |= (*(volatile unsigned char*)(0x1ffff7ed)-6)<<8;
Dev_Serial[1] |= (*(volatile unsigned char*)(0x1ffff7ee)+7)<<16;
Dev_Serial[1] |= (*(volatile unsigned char*)(0x1ffff7ef)-9)<<24;
Dev_Serial[2] = *(volatile unsigned char*)(0x1ffff7f0)+8;
Dev_Serial[2] |= (*(volatile unsigned char*)(0x1ffff7f1)-7)<<8;
Dev_Serial[2] |= (*(volatile unsigned char*)(0x1ffff7f2)+3)<<16;
Dev_Serial[2] |= (*(volatile unsigned char*)(0x1ffff7f3)-6)<<24;
while(1)
{
   if(Dev_Serial[0] == 0x04fefd38) //烧入时候先读出该值
   {
      if(Dev_Serial[1] == 0x2d403058)
      {
         if(Dev_Serial[2] == 0x3d27424f)
         {
            break;
         }
      }
}
  }
}
请教前辈们这样利用MCU ID 加密可行不？应该怎么做？

只看该作者 · 2010-4-3 16:05

本帖最后由 linminjun 于 2010-4-3 17:05 编辑

个人闲置5片全新STM32F103ZET6 五片包邮，一片36元，另赠一片 STM32F103ZCT6 （该片是自己焊接时候有两个角脚在一起，还没去处理，处理一下，就能用）http://item.taobao.com/auction/item_detail.htm?item_num_id=4588514713

只看该作者 · 2010-12-4 20:10

感谢分享