Serin,Serout Problem

[orwell101]

Hello!
I have used DEFINE OSC 4
and N9600.
I think the Problem is my COM Settings.
What shoul i use there?

[norohs]

I know how frustrating it can be to get this problem. It cost me several hours (and a dead USB to RS232 dongle) to isolate my problem. It turns out the internal oscillator (4Mhz) on my 12F629 was too far off. I probably killed the internal calibration value by mistake at some other time.


"for a= 0 to 255"

You are getting some data in acceding order. Using printable characters can help by counting the number of correct ascending order before it breaks consistent order. The control characters can be muddying up things. Maybe:

for a=32 to 126 'send only printable characters

Also, characters pacing might help

DEFINE CHAR_PACING 1000 'character pacing of 1ms

My Hyper Terminal setting is on ASCII (chosen from a list in the setup)

[mackrackit]

In your code, change back to 2400
N2400

And leave the PC program at 2400.

Let us know what happens so we can help more if needed.

[orwell101]

Hello!
I have tried this.
INCLUDE "modedefs.bas"
B0 var byte
define OSC 4
DEFINE CHAR_PACING 1000
A var byte
SI var PORTB.7
start:
SERIN si,N2400,B0
if b0 <> "0" then
for a= 32 to 126
serout si,N2400,[a]
next a
endif
goto start
end

And the PIC sends nothing more

[norohs]

It stops sending anything? Or the same garbage? Which?

And I'm with Mike:

"Serial out and serial in on same PIC pin? Normally separate pins. "