can_bootloader/user/DiagBootcode.aardio

var bootstate = 0;
var bootcount = 0;
var sendstate = 0;
FuncWait = function(sid){
	if(RespState == (sid + 0x40)){//正响应
		return 0;
	}
	errsid,errnrc = FuncGetNrc();
	FuncClrNrc();
	if(errsid == sid){
		if(errnrc == 0x78){//等待
			
			bootcount = 0;
			return 0xff; 
		}
		else {
			FuncDisplay("错误");
			boottimer.disable();
			return 1; //负响应
		}
		
	}
	if(stopflag == 1){
		FuncDisplay("停止");
		boottimer.disable();
		return 2;//停止命令
	}
	bootcount += 1;
	if(bootcount >= 400){
		FuncDisplay("超时");
		boottimer.disable();
		return 3;//超时 
	}
}	
	
FuncStopBoot = function(){
	stopflag = 1;
}
FuncClearState = function(){
	RespState = 0;
	bootcount = 0;
	sendstate = 1;
}
FuncInitBootState = function(){
	bootstate = 0;
	RespState = 0;
	bootcount = 0;
	sendstate = 0;
}


nextstate = function(val){
	if(val == 0){
		bootstate += 1;
		sendstate = 0;
	}
}


FuncBootSeq = function(){
	select(bootstate) {
		case 0 {
			//读取当前会话
			if(sendstate == 0){
				FuncReadDID(0xF186);
				FuncClearState();
			}
			else {
				var ret = FuncWait(0x22);
				nextstate(ret);
			}
		}
		case 1 {
			if(sendstate == 0){
				FuncReadDID(0xF195);//读取软件版本
				FuncClearState();
			}
			else {
				var ret = FuncWait(0x22);
				nextstate(ret);
			}
		}
		case 2 {
			if(sendstate == 0){
				FuncReadDID(0xF192);//读取硬件版本
				FuncClearState();
			}
			else {
				var ret = FuncWait(0x22);
				nextstate(ret);
			}
		}
		case 3 {
			if(sendstate == 0){
				FuncReq10(0x03);//进入扩展会话
				FuncClearState();
			}
			else {
				var ret = FuncWait(0x10);
				nextstate(ret);
			}
		}
		case 4 {
			if(sendstate == 0){
				FuncReq85(0x02);//进入扩展会话
				FuncClearState();
			}
			else {
				var ret = FuncWait(0x85);
				nextstate(ret);
			}
		}
		case 5 {
			if(sendstate == 0){
				FuncReq28(0x01);//进入扩展会话
				FuncClearState();
			}
			else {
				var ret = FuncWait(0x28);
				nextstate(ret);
			}
		}
		else {
			FuncDisplay("停止")
			boottimer.disable();
		}
	}
}