propeller serial output problem

powerstrokediesel97

I have been working with the propeller prop stick for a couple of weeks now, and cant seem to get a serial signal out of it.· Im not very experienced with microcontrollers yet, but i have tried everything to solve this problem.· i've tried several different code scenarios, using SimpleSerial, FullDuplexSerial, and the BS2Functions code from the object exhange.· i've hooked the oscilloscope to the pin, run some tests, and see no signal.· all im trying to do right now is input a gps string, and then output it to an lcd or hyperterminal to see if the propeller is recognizing the string and outputting it correctly.· in the future·i need to be able to input gps data and do some calculations.

Some help please?

Leon

Try this little test program for the Simple_Serial function in the Exchange:

''*****************************
''* Simple_Serial test        *
''*                           *
''*****************************

CON

        _clkmode        = xtal1 + pll16x
        _xinfreq        = 5_000_000


OBJ

        SS_test     : "Simple_Serial"


PUB go

'' Starts 'Simple_Serial'.
'' Use a terminal program on the host machine to communicate.

  SS_test.init(31, 30, 9600)
  repeat
    SS_test.tx("*")
  while true

I didn't have a board with an RS-232 driver on it, so it outputs via the Prop Tool to a comms program on the PC.

I just checked it and it definitely works. If it doesn't work for you there must be something wrong with your hardware.

Leon

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Amateur radio callsign: G1HSM
Suzuki SV1000S motorcycle

Post Edited (Leon) : 1/14/2009 12:22:16 AM GMT

StefanL38

hello,

as a general advice. If something does not work reduce the complextity AS MUCH as possible
to narrow down the problem. (Like it is done in democode above)

As you say that you don't see any signal on a scope. For a good help you need to attach your code to a posting.
Otherwise we - the forum - are guessing into the fog: it might be this - it might be that
and it will take 10 or 20 postings to narrow down the problem.

If you attach your code. In most cases it will be done in ONE answer

best regards

Stefan

powerstrokediesel97

that little code snippet works, i recognize it in hyperterminal and an lcd. im going to have to play around with it a little to get the hang of it, and possibly get some strings sending. i dont know what i was doing wrong, my code was very similar to the one posted above. ill post if i need anthing more.

thanks!