Problem with interrupts in a project involving serial port with VB

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miss_monica

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hello friends i want to make a project involving serial port with a vb user end
i am using mscomm .everything is fine but i dont know how to use interrupts in this program so that i can know that the serial port has received data from the microcontroller. i have studied beyond logic articles and the program buff1024.c it is very helpful but how can i use it in vb plz help me
if you have sample programs in vb that use interrupts and use serial port plz upload them .these projects might be of a lot of help for beginners like me
thankyou very much
i will be waiting for reply
this is a good example
https://www.serasidis.gr/circuits/RS232interface/RS232_interface.htm
 

inpout32.dll visual basic 6 serial communication

The MSCOMM's OnComm Event works as interrupt in your VB program. This event is fired everytime there is activity on serial port.

Use it like this
Code: 
Private Sub MSComm1_OnComm()
    Dim strData as String
    If MSComm1.CommEvent = comEvReceive Then
        strData = MSComm1.Input
        Debug.Print strData
    End If
End Sub
 

port32.ocx

thats very nice but do you have an example with 8051
i have attached the 8051 to port through 232
it doesnt work
the firmware is working perfectly but i dont get any results even on hyperterminal plz help
 

vb parallel port interrupt

Hey
CMOS DO YOU HAVE FURTHER IDEAS ON ACCESSING PARALLEL PORT THROUGH VISUAL BASIC.PLEASE HELP ME I DESPERATELY NEED IT
 

inpout32 dll serial port

miss_monica said:
thats very nice but do you have an example with 8051
i have attached the 8051 to port through 232
it doesnt work
the firmware is working perfectly but i dont get any results even on hyperterminal plz help
Click to expand...
Try this code
Code: 
#include <REGX52.H>
#include <stdio.h>

#define	FOSC		11059200UL	// Crystal frequency
#define BAUD_RATE	19200UL		// 19.2 kbps
#define BAUD_CONST	256-(unsigned char)(2 * FOSC/(BAUD_RATE * 12 * 32))

void main(void)
{
	// Init serial port
	PCON  = 0x80;			// Double Baud Rate
	SCON  = 0x50;			// SCON: mode 1, 8-bit UART, enable rcvr
	TMOD |= 0x20;			// TMOD: timer 1, mode 2, 8-bit reload
	TH1   = BAUD_CONST;		// TH1:  reload value
	TR1   = 1;			// TR1:  timer 1 run
	TI    = 1;
	RI    = 0;

	printf("Hello world!");
	while(1);
}

ajaykumar988 said:
Hey
CMOS DO YOU HAVE FURTHER IDEAS ON ACCESSING PARALLEL PORT THROUGH VISUAL BASIC.PLEASE HELP ME I DESPERATELY NEED IT
Click to expand...
Use this Inpout32.dll to access parallel port from VB. Here it is **broken link removed**
 

port32.ocx+author

Hello !

You can use the PORT32.OCX for the parallel Port Interfacing in the Visual Basic 6.0.

The syntax of the Port32 is very eassy . The syntax is

:::: FOR DATA OUT ::::

port32.Address = 888 (Your Port Address)
Port32.Bits = 8
Port32.Value = 241 (Value that you have to out)



:::: FOR DATA IN ::::

Port32.Address = 888 (Your Port Address)
Variiable = Port32.Value




It is very simple to use.

Wish you a good luck.

Bye
 

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