请问这个stc单片机在线升级程序的通讯协议怎么看？

1154 STC单片机通讯协议

问答对人有帮助，内容完整，我也想知道答案 0 [C] 纯文本查看复制代码 /------------------------------------------------------------------//* --- STC MCU International Limited -------------------------------// --- STC IAP ?????????ú???????§ISP ???????ò ----------------------// --- Mobile: (86)13922805190 -------------------------------------// --- Fax: 86-755-82944243 ----------------------------------------// --- Tel: 86-755-82948412 ----------------------------------------// --- Web: www.STCMCU.com -----------------------------------------// ???????????ò???????ò???????????????????ò,???????ò???ò??????×??÷ // ???????ê?§??????×????ò???ò //------------------------------------------------------------------/#include#include "absacc.h"it en=P3^2; //MAX485????????IOit led1=P4^1;it seg5=P2^4;it seg6=P2^5;*it seg7=P2^6;#define seg_duan P0char code seg_yang[]={0x40, 0xf9, 0x24, 0xa0, 0x91, 0x82, 0x02, 0xf8, 0x00, 0x80};//????/?¨??????/#define FOSC 11059200L //?????±????#define BAUD (256 - FOSC/32/19200) //?¨???®???¨????#define MAX_SIZE 118 //???§???ò×??ó????????????#define ENABLE_IAP 0x82 //?????¤×÷????<20MHztypedef unsigned char BYTE;typedef unsigned int WORD;typedef struct{ BYTE cmd; WORD addr; WORD len; BYTE chk;} CBW;void Isp_Check(BYTE p);BYTE Isp_RecvUart();void Isp_RecvBlock(BYTE p, BYTE n);void Isp_SendUart(BYTE dat);void Isp_SoftReset();BYTE cnt7f; //Isp_Check??????????±???,????7F???????÷,?±??????????16??7F?ó????ISP????????CBW cbw; //?®???ü???éBYTE sum; //???é??±???BYTE buf[64]; //??????????/------------------------------------------------ ?®??????·??????ò------------------------------------------------/void uart() interrupt 4{ if (TI) TI = 0; //·????ê?????? if (RI) //?????ê?????? { Isp_Check(&cnt7f); //ISP?ì?? RI = 0; //???????ê??±ê?? }}void delayms(int xms)//???±????{ for(;xms>0;xms--);}void main(){ SCON = 0x50; //?¨???®????????8bit??±?,?????é?? AUXR = 0x15; //?¨????·??ú?÷12±???,???????¨????·??ú?÷?¨?±?÷ BRT = BAUD; //???????¨????·??ú?÷?¨?±?÷???¨?±???? ES = 1; //?????®?????? EA = 1; //?ò??????????????en=0; while (1){led1=~led1; delayms(5000);}}/------------------------------------------------ ?®??ISP?ü???ò???ì?????é------------------------------------------------/void Isp_Check(BYTE p){ BYTE i; WORD j; if (SBUF != 0x7f) //?ì???®????????·???7F { p = 0; //??????7F,?ò??7F??????//Isp_SoftReset(); //??????·?·¨?ü???±,???????? } else { (p)++; //????7F,?ò7F??????+1 if (p>=16) //????7F??·?????????????16?? { //??>=16??,?ò????ISP???????? IE = 0; //??±??ù?????? PSW = 0; //ISP???é??????0×é?????÷ SP = 0x5f; //????ISP???é?????????? RI = 0; //?????®??????±ê?? TI = 0; //???®??·???±ê?? Isp_SendUart(0x5a); //·???5A 69??PC,±í??ISP???é??×?±????÷ Isp_SendUart(0x69); //·???5A 69??PC,±í??ISP???é??×?±????÷ while (1) //ISP????????,?÷???· { sum = 0; //?????é?? //???ü?????í,?ò???ò???? if((Isp_RecvUart()==0x5a)&&(Isp_RecvUart()==0x69)) { Isp_RecvBlock((BYTE )&cbw, 6); //????6×??????ü???ò?? if (sum != 0) //?????ü???ò????·????· { Isp_SoftReset(); //???ü?????í,?ò???ò???? } switch (cbw.cmd) { case 0: //0???ü?????????ü?? IAP_ADDRL = 0; //????0???????????? IAP_ADDRH = 0; IAP_CONTR = ENABLE_IAP; //????IAP???? IAP_CMD = 3; //?????ü?? if (cbw.len > MAX_SIZE) //????????????????·?????·??§ { cbw.len = MAX_SIZE; } while (cbw.len--) //??????·??????ê?? { WDT_CONTR = 0x17; //???????· IAP_TRIG = 0x5a; //??·?ISP?ü?? IAP_TRIG = 0xa5; IAP_ADDRH += 2; //??±ê???·+512 } Isp_SendUart(0); //???··??? break; case 1: //1???ü????±à???ü?? sum = 0; //???????é???? Isp_RecvBlock(buf, 64); //????64×?????±à?????? Isp_RecvUart(); //???????é?? if (sum != 0) //??????????·????· { Isp_SoftReset(); //?????????í,?ò???ò???? } IAP_CONTR = ENABLE_IAP; //????IAP???? IAP_CMD = 2; //±à???ü?? j = cbw.addr; //±à????±ê???· for (i=0; i<64; i++) //±à??64×??????? { WDT_CONTR = 0x17; //???????· IAP_DATA = buf; //???±?°??????IAP?????????÷ IAP_ADDRL = j; //??±ê???·??IAP???·?????÷ IAP_ADDRH = j >> 8; IAP_TRIG = 0x5a; //??·?ISP?ü?? IAP_TRIG = 0xa5; j++; //??±ê???·+1 } j = cbw.addr; //???é??±ê???· for (i=0; i<64; i++) //???é64×??????? { WDT_CONTR = 0x17; //???????· if (buf != CBYTE[j]) //??????????±ê????????±??? break; //???à??,?ò±à?????í j++; //???é??????×??? } Isp_SendUart(!(i == 64)); //???é????·???0; ·??ò·???1 break; default: Isp_SoftReset(); //??????·?·¨?ü???±,???????? break; } } } } }}/------------------------------------------------ ???????é?®?????? ????????: R0 (?????????????·) R7 (???????¤??)------------------------------------------------/void Isp_RecvBlock(BYTE p, BYTE n){ while (n--) //?ì???¤?? { p = Isp_RecvUart(); //????1×???,??±??????????? p++; //?????????·+1 }}/------------------------------------------------ ????1×????®?????? ????????: ACC (????????????)------------------------------------------------/BYTE Isp_RecvUart(){ BYTE dat;RI = 0; //?????®??????±ê??en=0;while (!RI) //?????????ê?? { WDT_CONTR = 0x17; //???????· } dat = SBUF; //?????®?????? RI = 0; //????±ê??sum += dat; //???????é?? return dat; //·????????????®??????}/------------------------------------------------ ·???1×????®?????? ????????: ACC (??·?????????) ------------------------------------------------/void Isp_SendUart(BYTE dat){ en=1; TI = 0; //????±ê?? SBUF = dat; //·????±?°????while (!TI) //?????°????????·????ê?? { WDT_CONTR = 0x17; //???????· } en=0;}/------------------------------------------------ ?í??????------------------------------------------------/void Isp_SoftReset(){ IAP_CONTR = 0x20; //???§???ò??????}请问大神们，这个ISP在线升级程序的通讯协议怎么看？没有经验，求指教啊。。。 0
2019-7-23 01:30:04　　评论淘帖0 邀请回答您可以邀请以下用户，快速回答问题 × heks 该类别下有 20 个回答。邀请回答新星之火12138 该类别下有 18 个回答。邀请回答 wang21cj 该类别下有 17 个回答。邀请回答 hgimtk 该类别下有 16 个回答。邀请回答科源机电该类别下有 15 个回答。邀请回答 liutiefu 该类别下有 15 个回答。邀请回答 kghfh 该类别下有 14 个回答。邀请回答 chm5 该类别下有 13 个回答。邀请回答 dgfdf 该类别下有 13 个回答。邀请回答 723662364d 该类别下有 13 个回答。邀请回答一巷清苑该类别下有 13 个回答。邀请回答小华同学该类别下有 12 个回答。邀请回答 jsqueh 该类别下有 12 个回答。邀请回答红旧衫该类别下有 12 个回答。邀请回答早知该类别下有 12 个回答。邀请回答 Ehunt 该类别下有 12 个回答。邀请回答张峰9998 该类别下有 12 个回答。邀请回答 hy381 该类别下有 12 个回答。邀请回答 ggfvxv 该类别下有 12 个回答。邀请回答 YOYOOO 该类别下有 12 个回答。邀请回答举报洪禹相关推荐 • 关于程序在线升级 3052 • 关于STC单片机的远程升级看完你就懂了 4954 • 单片机的远程升级跳转的时候需要做什么处理？ 1486 • 如何看单片机里程序改了之后运行速度的变化的? 376 • 求求教单片机原理图怎么看？ 8604 • 有什么单片机可以用DEVICENET协议通讯 4850 • IAP/Bootloader升级原理是什么？ 1487 • 关于stc单片机的isp疑问？ 2518 • 单片机与上位机通讯协议是什么？ 195 • stc单片机下载程序的原理是什么？ 2347 3个回答

答案对人有帮助，有参考价值 0 这还真不好看... 直接问作者要文档比较靠谱点.

2019-7-23 09:03:45 评论举报李枫芸