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  Topic: UART PIC to PIC communication
red32terra

Replies: 0
Views: 3113

PostForum: General CCS C Discussion   Posted: Thu Mar 05, 2009 4:29 am   Subject: UART PIC to PIC communication
Hi, i want to communicate multiple PIC16F877a. One is sort of a master and the rest are slaves. I am using CCS version 4.084 with MPLAB ICD2 debugger. Sorry for the long code.

Here is the code of t ...
  Topic: sending string/characters during zero crossing
red32terra

Replies: 8
Views: 7472

PostForum: General CCS C Discussion   Posted: Wed Dec 10, 2008 2:40 pm   Subject: sending string/characters during zero crossing
Hi sir.
You are right. We are injecting (asynchronously) serial characters onto zero crossings of a power line (sort of a timed transmission data communication) which somehow lessen noise during tran ...
  Topic: sending string/characters during zero crossing
red32terra

Replies: 8
Views: 7472

PostForum: General CCS C Discussion   Posted: Wed Dec 10, 2008 5:20 am   Subject: sending string/characters during zero crossing
Hi.

I am sort of a newbie in this thing and I am looking for any help on putc/puts characters during zero crossing. I am using PIC16F877A.

I want to send:

for (Ctr1=0;Ctr1<=7;Ctr1++& ...
  Topic: PIC operated FSK modem help
red32terra

Replies: 6
Views: 12361

PostForum: General CCS C Discussion   Posted: Tue Nov 18, 2008 12:51 am   Subject: PIC operated FSK modem help
Hi, FvM. thanks for replying . You are right. we are currently developing a signal conditioning circuit (optoisolator, amplifiers) between xr2206 and line interface.

But I'm much more concerned wit ...
  Topic: PIC operated FSK modem help
red32terra

Replies: 6
Views: 12361

PostForum: General CCS C Discussion   Posted: Wed Nov 12, 2008 11:46 pm   Subject: PIC operated FSK modem help
Hi, thank you guys for your quick reply.

Sorry, I forgot to tell you the detail that we'll be communicating over powerline, we are "tasked" to use VEPC-2 as an line coupling interface(L ...
  Topic: PIC operated FSK modem help
red32terra

Replies: 6
Views: 12361

PostForum: General CCS C Discussion   Posted: Wed Nov 12, 2008 3:43 am   Subject: PIC operated FSK modem help
hi, i'm interested building a FSK modem around a PIC microcontroller (PIC16F877A to be exact). we had XR2206/XR2211 as mod/demod, and zero a crossing detector. The modem will be used to communicate w ...
  Topic: communication between multiple 16f877
red32terra

Replies: 10
Views: 10648

PostForum: General CCS C Discussion   Posted: Thu Nov 06, 2008 3:40 am   Subject: Re: master/slave rs232
if each slave has his own address and have int_RDA enabled can use rs232 when all on the same wire. the addressed will answer.
with max485 (or others) you can enable/disable each one, separate wires. ...
 
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