Shani
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HEllo Friends !
I am working on the project in which we are working on the Microcontroller Based Distributive Control System..
In this our three Control systems are connected to the Microcontrollers and they are getting the data from the sensors continously.
In this our PC is working as a master and we are working on the Visual Basic 6.0.
In VB we are getting the data from each MCU slave. This process is doing continously.
The Problem is :::::
When we sonnect the each slave separately then it works perfectly and we are getting the correct data. But when we connect the three salves at a time then only single slave work properly and other two slaves are unable to send the data to computer.
I have connect the Serial port to three ports by connecting the three DB9connectors parallel to it and this cable I have checked, it is working perfect.
Now please tell me that what will be the problem in this progame.
Is it due to the Buffering from the SERIAL PORT, so that it is not getting the data from the slaves ??????
If anyone have any idea then please tell me.
Thanks in advance.
Take Care
Zeeshan Shareef
I am working on the project in which we are working on the Microcontroller Based Distributive Control System..
In this our three Control systems are connected to the Microcontrollers and they are getting the data from the sensors continously.
In this our PC is working as a master and we are working on the Visual Basic 6.0.
In VB we are getting the data from each MCU slave. This process is doing continously.
The Problem is :::::
When we sonnect the each slave separately then it works perfectly and we are getting the correct data. But when we connect the three salves at a time then only single slave work properly and other two slaves are unable to send the data to computer.
I have connect the Serial port to three ports by connecting the three DB9connectors parallel to it and this cable I have checked, it is working perfect.
Now please tell me that what will be the problem in this progame.
Is it due to the Buffering from the SERIAL PORT, so that it is not getting the data from the slaves ??????
If anyone have any idea then please tell me.
Thanks in advance.
Take Care
Zeeshan Shareef