Communication PIC to PIC?

[mister_e]

Master:
SEROUT SerPin,Baud,[YourVar]

Slave:
SERIN SerPin,Baud,[YourVar]

---- OR ----

Master:
SEROUT SerPin,Baud,[#YourVar]

Slave:
SERIN SerPin,Baud,[#YourVar]

---- OR ----

Master:
SEROUT2 SerPin,Baud,[DEC YourVar]

Slave:
SERIN2 SerPin,Baud,[DEC YourVar]

---- OR ----
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---- OR -----
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[droptail]

Thanks Steve, I'll give her a try.

[Rhatidbwoy]

what do you do if you have 39 things to send and you do not want to eat up all that space with serin commands.

[mister_e]

39 things to send or receive?

To send => you can even use internal EEPROM or use an array variable.

To receive = > With SERIN2, look for the STR modifier.

[Rhatidbwoy]

ok. I think that I have found a way to get this moving. The problem that I have is that I broke my 16f648a and do not have another. I will be waiting for a while. But between what I have I think that it will work.

I have the programs of my work if you want to look. ironing out the little details to trans u2 ver 7 and still working on trans u1 ver2.

Ah quick question. the attachment MATH is part of u1 ver2. I am getting error leaving me to understand that I don't understand the math behind what is happening within the chip. Since I am doing multiplication and division my information is base 32 rather than 16? Is that what I am to understand?

[peterdeco1]

Very crude but it works. A while back I had to send 1 of 8 numbers to a slave PIC. I used SOUND command on master & COUNT command on slave. First number was near 100HZ, 2 was 200HZ, etc. Worked perfectly. Count command was limited to 100ms and allowed fast response. Count command needs a "window" like IF PULSESRECEIVED > 8 and < 12 THEN LET X = 0. Hope this helps.

[mister_e]

for your math you can't use float directly like that.

0.5 * x ===> still the same if you divide by 2

If x=1.5 ===> you should multiply by 10 then read IF x=15 depending of the previous math...

Well you should think integer than float.

[droptail]

Master:
SEROUT SerPin,Baud,[YourVar]

Slave:
SERIN SerPin,Baud,[YourVar]

---- OR ----

Master:
SEROUT SerPin,Baud,[#YourVar]

Slave:
SERIN SerPin,Baud,[#YourVar]

---- OR ----

Master:
SEROUT2 SerPin,Baud,[DEC YourVar]

Slave:
SERIN2 SerPin,Baud,[DEC YourVar]

.

SerOut B.6,N2400,[w2]

SerOut B.6,N2400,[#w2]

Referrrencing my above example, both get "bad expression" errors when compiling, whats wrong?

[mister_e]

What about

SerOut PORTB.6,N2400,[w2] 

SerOut PORTB.6,N2400,[#w2]

[droptail]

Sho Nuff! Thanks Steve.

[droptail]

After being unsuccessful in transferrring the data from master to server, I now realize there must be some timing issues involved. How to time the transfer, or have slave wait until a successful serin has been made?

[mister_e]

use timeout of SERIN2 or DEBUGIN... PBP manual.

[Rhatidbwoy]

ok I have got the pics that I have been waiting for. I have tried one crued method mentions earlier in the this thread. If I had to set up one pic to wait for the command how would I go about that. That is of course using the SEROUT and SERIN command.

This is were it starts to get hairy.