PC to PIC communication?

[June]

Dear all,

I am currently using VB to interface with my PIC16F876. Can anybody give me some codes to setup RS232 communication with PIC? I designed before (using TX, RX, GND, 9600 b.rate) but the C++ program I designed only can receive 0-32 (5 bit data), why? Can anybody give me some examples :)

Maybe this will be considered as off topic question. Howver without this part I cannot test my PIC --> PC communication using C++.

Thanks for reading...


Regards: June,
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This message was ported from CCS's old forum
Original Post ID: 10015

[kolio]

:=Dear all,
:=
:= I am currently using VB to interface with my PIC16F876. Can anybody give me some codes to setup RS232 communication with PIC? I designed before (using TX, RX, GND, 9600 b.rate) but the C++ program I designed only can receive 0-32 (5 bit data), why? Can anybody give me some examples <img src="http://www.ccsinfo.com/pix/forum/smile.gif" border="0">
:=
:= Maybe this will be considered as off topic question. Howver without this part I cannot test my PIC --> PC communication using C++.
:=
:= Thanks for reading...
:=
:=
:=Regards: June,

Hi,
Check your e-mail. I sent you a VB project that communicates with PIC16f628 via RS-232. And don't forget that someone told you this forum is about PIC C. So, if you have any questions about VB, just write me an e-mail.
Good luck!
___________________________
This message was ported from CCS's old forum
Original Post ID: 10018

[Guest]

[dvsoft]

bonjour,


for the communication series under Windows, in C++ you can use
the component form Turbo Power AsyncPro 4
http://sourceforge.net/projects/tpapro/
it is a free package OpenSource


I use it with C++Builder to communicate with my PIC18 project

Bon courrage ALAIN

[Mark Weir]

I have most of a design written in VB by a friend and a piece of code for a pic but need a bridge to join them.
Could I have a copy of your application please.

mark@emc-ltd.co.nz

Cheers

Mark Weir

[dyeatman]

Take a look at the original post and notice it is from December 2002!! I doubt you will get an answer....

[Mark]

[Mark Weir]

Thanks for your comments guys, yes I did see the original date, I still follow the forum after 18 months so I thought others would be the same.
The question remains though, does anyone else have similar code/ideas?

I am sure the answer is obvious to some of you, I found the project quite difficult as my friend's IT training took him to the edge of VB and mine to the edge of what the PIC could do. Everyone I have asked so far has been unable to explain hoe to link the two things together.

Incidentally , what I am trying to do is to use the VB program to run ICPROG or a similar icsp program to automatically program groups of PIC's within a panel of circuit boards.

Cheers
Mark

[PCM programmer]

[Mark Weir]

Thanks PCM,
I am trying to control a PIC thru RS232 from a VB program which will direct the Vpp programming pin to any one of 9 PCB's then invoke ICPROG to load up the hex file.

This is the concept, my lack of understanding of the process my mean I have it all wrong

Cheers
Mark

[Mark]

Are you aware of all the connections to do ICSP? Are all the connections just paralleled except the Vpp pin? How are you directing this? Trying to make a gang programmer?

[Mark Weir]

Yes I have used ICSP a lot,
I have joined all other connections, Clk,Dta, +5 and Gnd. Then I switch the Vpp through a CD4514 1 of 16 decoder which is selected by the PIC according the PCB I wish to program.

As I understand it, if the Vpp pin is kept at +5v the PIC will not go into programming mode. All I am doing is Raising the Vpp pin on at a time to select which one to program.

Cheers
Mark