query in rs232 programming in turbo c

[narasimhavarmap]

hai, i am developing a chat application in turbo c.i used bioscom function to set the port settings and to transmit the data,but iam unable to transmit the data. the prog is : bioscom(0,settings,com1); bioscom(1,n,com1); 'n' is the data which i am transmitting. but the data is not getting displayed in the hyperterminal of another system. plz guide me regarding this . plz reply as soon as possible. from narasimha varma p

[Roger CS]

What are you using to transmit the data?.. serial cable, modems? Have you confirmed that the hardware is configured correctly by opening a hyperterminal session on the transmitting PC and sending test data to the receiving PC using the same settings as you use in your program? You must make sure that the ports and hardware (serial cable or modems) are properly configured first. Then, if your program still does not work, start looking at the code for errors. Roger

[Anonymous]

i am using null modem cable for the transmission of data.through hyper terminal the data is getting transferred and recieved.but not happening through my program any way i am writing my code down to this matter if possible plz help me to solve this problem my program is as follows:#include #include #include #include #define COM1 1 #define SETTINGS (0x80 | 0x02 | 0x00 | 0x00) void transmit(); void display(); void main() { clrscr(); transmit(); } void transmit() { char msg,msg_in; int status,out,in,count=0,count_in=0,i,extra; int x,y,n; x=bioscom(0, SETTINGS, COM1); bioscom(3,0,COM1); n=x; printf("\n the status in binary is:"); while(n!=0) { printf("%d",(n%2)); n=n/2; } msg=getche(); bioscom(1,msg,COM1); printf("\n %d",x); window(10,10,40,11); /* while (1) { if (kbhit()) { gotoxy(count+1,1); if ((in = getche()) == 27)//if esc is pressed then exit break; if(in==0) { in= getch(); continue; } if(in==8 && count>0) { count-=2;cprintf(" \b");} else msg[count]=in; if(count==70) {in=13; msg[70]=13;} count++; if(in==13 ) { i=0; display(msg,14); for(i=0;i

[Roger CS]

Hey, been awful busy this week and didn't notice that you replied. Check your parameter to bioscom. I think COM1 should be defined as 0 and COM2 would be 1. Your library implementation may be different. You should be passing 3 for the first argument to obtain the status, not 0. Take a look at this page for a complete discussion on bisocom... http://www.funducode.com/freec/Hardware/new_hi_c02/Article02.htm[^] Roger