想自己制作脱机下载器,有没有哪位有成功过的资料可以借鉴? (amobbs.com 阿莫电子技术论坛) -

bzbs 发表于 2014-12-25 11:36:39

想自己制作脱机下载器,有没有哪位有成功过的资料可以借鉴?

现在产品处于试验阶段,客户指定的MCU,呀考虑批量生产时,针床烧录到问题
以及自动增加ID序列号以方便后续产品区域管理,售后维护问题.
网上有脱机下载器的介绍,不知是否有哪位大神有经验可分享?

yuyu87 发表于 2014-12-25 13:04:25

只要清楚单片机下载的协议就可以自己弄啊，

hyj 发表于 2014-12-28 20:16:10

也想弄一个，就是没有串口下载协议

flash3g 发表于 2015-1-1 00:45:49

/*---------------------------------------------------------------------*/
/* --- STC MCU Limited ------------------------------------------------*/
/* --- 使用主芯片对从芯片(限STC15系列)进行ISP下载举例 -----------------*/
/* --- Mobile: (86)13922805190 ----------------------------------------*/
/* --- Fax: 86-755-82905966 -------------------------------------------*/
/* --- Tel: 86-755-82948412 -------------------------------------------*/
/* --- Web: www.STCMCU.com --------------------------------------------*/
/* 如果要在程序中使用此代码,请在程序中注明使用了宏晶科技的资料及程序 */
/* 如果要在文章中应用此代码,请在文章中注明使用了宏晶科技的资料及程序 */
/*---------------------------------------------------------------------*/

//本示例在Keil开发环境下请选择Intel的8058芯片型号进行编译
//假定测试芯片的工作频率为11.0592MHz

//注意:使用本代码对STC15系列的单片机进行下载时,必须要执行了Download代码之后,
//才能给目标芯片上电,否则目标芯片将无法正确下载

#include "reg51.h"

typedef bit BOOL;
typedef unsigned char BYTE;
typedef unsigned short WORD;

//宏、常量定义
#define FALSE             0
#define TRUE             1
#define LOBYTE(w)       ((BYTE)(WORD)(w))
#define HIBYTE(w)       ((BYTE)((WORD)(w) >> 8))

#define MINBAUD          2400L
#define MAXBAUD          115200L

#define FOSC             11059200L                //主控芯片工作频率
#define BR(n)             (65536 - FOSC/4/(n))    //主控芯片串口波特率计算公式
#define T1MS             (65536 - FOSC/1000)       //主控芯片1ms定时初值

//#define FUSER          11059200L                //STC15系列目标芯片工作频率
//#define FUSER          12000000L                //STC15系列目标芯片工作频率
//#define FUSER          18432000L                //STC15系列目标芯片工作频率
//#define FUSER          22118400L                //STC15系列目标芯片工作频率
#define FUSER             24000000L                //STC15系列目标芯片工作频率
#define RL(n)             (65536 - FUSER/4/(n))    //STC15系列目标芯片串口波特率计算公式

//SFR定义
sfr AUXR = 0x8e;

//变量定义
BOOL f1ms;                                           //1ms标志位
BOOL UartBusy;                                        //串口发送忙标志位
BOOL UartReceived;                                  //串口数据接收完成标志位
BYTE UartRecvStep;                                  //串口数据接收控制
BYTE TimeOut;                                        //串口通讯超时计数器
BYTE xdata TxBuffer;                            //串口数据发送缓冲区
BYTE xdata RxBuffer;                            //串口数据接收缓冲区
char code DEMO;                                  //演示代码数据

//函数声明
void Initial(void);
void DelayXms(WORD x);
BYTE UartSend(BYTE dat);
void CommInit(void);
void CommSend(BYTE size);
BOOL Download(BYTE *pdat, long size);

//主函数入口
void main(void)
{
while (1)
{
   Initial();
   if (Download(DEMO, 0x0100))
   {
         //下载成功
         P3 = 0xff;
         DelayXms(500);
         P3 = 0x00;
         DelayXms(500);
         P3 = 0xff;
         DelayXms(500);
         P3 = 0x00;
         DelayXms(500);
         P3 = 0xff;
         DelayXms(500);
         P3 = 0x00;
         DelayXms(500);
         P3 = 0xff;
   }
   else
   {
         //下载失败
         P3 = 0xff;
         DelayXms(500);
         P3 = 0xf3;
         DelayXms(500);
         P3 = 0xff;
         DelayXms(500);
         P3 = 0xf3;
         DelayXms(500);
         P3 = 0xff;
         DelayXms(500);
         P3 = 0xf3;
         DelayXms(500);
         P3 = 0xff;
   }
}
}

//1ms定时器中断服务程序
void tm0(void) interrupt 1 using 1
{
static BYTE Counter100;

f1ms = TRUE;
if (Counter100-- == 0)
{
   Counter100 = 100;
   if (TimeOut) TimeOut--;
}
}

//串口中断服务程序
void uart(void) interrupt 4 using 1
{
static WORD RecvSum;
static BYTE RecvIndex;
static BYTE RecvCount;
BYTE dat;

if (TI)
{
   TI = 0;
   UartBusy = FALSE;
}

if (RI)
{
   RI = 0;
   dat = SBUF;
   switch (UartRecvStep)
   {
   case 1:
         if (dat != 0xb9) goto L_CheckFirst;
         UartRecvStep++;
         break;
   case 2:
         if (dat != 0x68) goto L_CheckFirst;
         UartRecvStep++;
         break;
   case 3:
         if (dat != 0x00) goto L_CheckFirst;
         UartRecvStep++;
         break;
   case 4:
         RecvSum = 0x68 + dat;
         RecvCount = dat - 6;
         RecvIndex = 0;
         UartRecvStep++;
         break;
   case 5:
         RecvSum += dat;
         RxBuffer = dat;
         if (RecvIndex == RecvCount) UartRecvStep++;
         break;
   case 6:
         if (dat != HIBYTE(RecvSum)) goto L_CheckFirst;
         UartRecvStep++;
         break;
   case 7:
         if (dat != LOBYTE(RecvSum)) goto L_CheckFirst;
         UartRecvStep++;
         break;
   case 8:
         if (dat != 0x16) goto L_CheckFirst;
         UartReceived = TRUE;
         UartRecvStep++;
         break;
L_CheckFirst:
   case 0:
   default:
         CommInit();
         UartRecvStep = (dat == 0x46 ? 1 : 0);
         break;
   }
}
}

//系统初始化
void Initial(void)
{
UartBusy = FALSE;

SCON = 0xd0;                //串口数据模式必须为8位数据+1位偶检验
AUXR = 0xc0;
TMOD = 0x00;
TH0 = HIBYTE(T1MS);
TL0 = LOBYTE(T1MS);
TR0 = 1;
TH1 = HIBYTE(BR(MINBAUD));
TL1 = LOBYTE(BR(MINBAUD));
TR1 = 1;
ET0 = 1;
ES = 1;
EA = 1;
}

//Xms延时程序
void DelayXms(WORD x)
{
do
{
   f1ms = FALSE;
   while (!f1ms);
} while (x--);
}

//串口数据发送程序
BYTE UartSend(BYTE dat)
{
while (UartBusy);

UartBusy = TRUE;
ACC = dat;
TB8 = P;
SBUF = ACC;

return dat;
}

//串口通讯初始化
void CommInit(void)
{
UartRecvStep = 0;
TimeOut = 20;
UartReceived = FALSE;
}

//发送串口通讯数据包
void CommSend(BYTE size)
{
WORD sum;
BYTE i;

UartSend(0x46);
UartSend(0xb9);
UartSend(0x6a);
UartSend(0x00);
sum = size + 6 + 0x6a;
UartSend(size + 6);
for (i=0; i<size; i++)
{
   sum += UartSend(TxBuffer);
}
UartSend(HIBYTE(sum));
UartSend(LOBYTE(sum));
UartSend(0x16);
while (UartBusy);

CommInit();
}

//对STC15系列的芯片进行数据下载程序
BOOL Download(BYTE *pdat, long size)
{
BYTE arg;
BYTE fwver;
BYTE offset;
BYTE cnt;
WORD addr;

//握手
CommInit();
while (1)
{
   if (UartRecvStep == 0)
   {
         UartSend(0x7f);
         DelayXms(10);
   }
   if (UartReceived)
   {
         arg = RxBuffer;
         fwver = RxBuffer;
         if (RxBuffer == 0x50) break;
         return FALSE;
   }
}

//设置参数(设置从芯片使用最高的波特率以及擦除等待时间等参数)
TxBuffer = 0x01;
TxBuffer = arg;
TxBuffer = 0x40;
TxBuffer = HIBYTE(RL(MAXBAUD));
TxBuffer = LOBYTE(RL(MAXBAUD));
TxBuffer = 0x00;
TxBuffer = 0x00;
TxBuffer = 0xc3;
CommSend(8);
while (1)
{
   if (TimeOut == 0) return FALSE;
   if (UartReceived)
   {
         if (RxBuffer == 0x01) break;
         return FALSE;
   }
}

//准备
TH1 = HIBYTE(BR(MAXBAUD));
TL1 = LOBYTE(BR(MAXBAUD));
DelayXms(10);
TxBuffer = 0x05;
if (fwver < 0x72)
{
   CommSend(1);
}
else
{
   TxBuffer = 0x00;
   TxBuffer = 0x00;
   TxBuffer = 0x5a;
   TxBuffer = 0xa5;
   CommSend(5);
}
while (1)
{
   if (TimeOut == 0) return FALSE;
   if (UartReceived)
   {
         if (RxBuffer == 0x05) break;
         return FALSE;
   }
}

//擦除
DelayXms(10);
TxBuffer = 0x03;
TxBuffer = 0x00;
if (fwver < 0x72)
{
   CommSend(2);
}
else
{
   TxBuffer = 0x00;
   TxBuffer = 0x5a;
   TxBuffer = 0xa5;
   CommSend(5);
}
TimeOut = 100;
while (1)
{
   if (TimeOut == 0) return FALSE;
   if (UartReceived)
   {
         if (RxBuffer == 0x03) break;
         return FALSE;
   }
}

//写用户代码
DelayXms(10);
addr = 0;
TxBuffer = 0x22;
if (fwver < 0x72)
{
   offset = 3;
}
else
{
   TxBuffer = 0x5a;
   TxBuffer = 0xa5;
   offset = 5;
}
while (addr < size)
{
   TxBuffer = HIBYTE(addr);
   TxBuffer = LOBYTE(addr);
   cnt = 0;
   while (addr < size)
   {
         TxBuffer = pdat;
         addr++;
         cnt++;
         if (cnt >= 128) break;
   }
   CommSend(cnt + offset);
   while (1)
   {
         if (TimeOut == 0) return FALSE;
         if (UartReceived)
         {
            if ((RxBuffer == 0x02) && (RxBuffer == 'T')) break;
            return FALSE;
         }
   }
   TxBuffer = 0x02;
}

////写硬件选项
////如果不需要修改硬件选项,此步骤可直接跳过,此时所有的硬件选项
////都维持不变,MCU的频率为上一次所调节频率
////若写硬件选项,MCU的内部IRC频率将被固定写为24M,
////建议:第一次使用STC-ISP下载软件将从芯片的硬件选项设置好
//// 以后再使用主芯片对从芯片下载程序时不写硬件选项
//DelayXms(10);
//for (cnt=0; cnt<128; cnt++)
//{
// TxBuffer = 0xff;
//}
//TxBuffer = 0x04;
//TxBuffer = 0x00;
//TxBuffer = 0x00;
//if (fwver < 0x72)
//{
// TxBuffer = 0xfd;
// TxBuffer = arg;
// TxBuffer = 0x7f;
// TxBuffer = 0xf7;
// TxBuffer = 0x7b;
// TxBuffer = 0x1f;
// CommSend(67);
//}
//else
//{
// TxBuffer = 0x5a;
// TxBuffer = 0xa5;
// TxBuffer = 0xfd;
// TxBuffer = arg;
// TxBuffer = 0x7f;
// TxBuffer = 0xf7;
// TxBuffer = 0x7b;
// TxBuffer = 0x1f;
// CommSend(69);
//}
//while (1)
//{
// if (TimeOut == 0) return FALSE;
// if (UartReceived)
// {
//    if ((RxBuffer == 0x04) && (RxBuffer == 'T')) break;
//    return FALSE;
// }
//}

//下载完成
return TRUE;
}

char code DEMO =
{
0x02,0x00,0x5E,0x12,0x00,0x4B,0x75,0xB0,
0xEF,0x12,0x00,0x2C,0x75,0xB0,0xDF,0x12,
0x00,0x2C,0x75,0xB0,0xFE,0x12,0x00,0x2C,
0x75,0xB0,0xFD,0x12,0x00,0x2C,0x75,0xB0,
0xFB,0x12,0x00,0x2C,0x75,0xB0,0xF7,0x12,
0x00,0x2C,0x80,0xDA,0xE4,0xFF,0xFE,0xE4,
0xFD,0xFC,0x0D,0xBD,0x00,0x01,0x0C,0xBC,
0x01,0xF8,0xBD,0xF4,0xF5,0x0F,0xBF,0x00,
0x01,0x0E,0xBE,0x03,0xEA,0xBF,0xE8,0xE7,
0x02,0x00,0x4B,0x75,0x80,0xFF,0x75,0x90,
0xFF,0x75,0xA0,0xFF,0x75,0xB0,0xFF,0x75,
0xC0,0xFF,0x75,0xC8,0xFF,0x22,0x78,0x7F,
0xE4,0xF6,0xD8,0xFD,0x75,0x81,0x07,0x02,
0x00,0x03,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
};

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amobbs.com 阿莫电子技术论坛's Archiver

想自己制作脱机下载器,有没有哪位有成功过的资料可以借鉴?