Serin troubles

Archiver

Hi All,

I am trying to use a RWS/TWS 433mHz transmitter receiver setup, using a B2SX
for both receiver and transmitter. I can get it to send and receive data,
but the data is wrong, as if the baud rate is wrong or I am not using the
"dec" modifier correctly. If I transmit a zero, I get 255 on the other end.
If I insert a "dec" into the serin line on the receiver code, I get nothing,
like it is waiting for a synch byte that never comes. As you can see, I use
the number 255 on both sides and it receives correctly. Here is the code
snip:

TX:

'{$STAMP BS2sx}

dat var byte

synch var byte

baud var word

synch=255

baud = 17405

dat = 0







Send_Data:

serout 0,baud,10,[noparse][[/noparse]synch,dat]

pause 100

goto Send_Data





RX:



'{$STAMP B2sx}



dat var byte

baud con 17405

synch con 255



Get_Data:

serin 0,baud,[noparse][[/noparse]wait(synch),dat]

pause 500

debug dec dat, cr,cr



I have made this setup work before using a PIC for the xmit and a B2SX for
the recieve, so I know the hardware is good. Help me get off the short bus!

Jonathan

www.madlabs.info

Archiver

Jonathan Peakall wrote:

> Hi All,
>
> I am trying to use a RWS/TWS 433mHz transmitter receiver setup, using a B2SX
> for both receiver and transmitter. I can get it to send and receive data,
> but the data is wrong, as if the baud rate is wrong or I am not using the
> "dec" modifier correctly. If I transmit a zero, I get 255 on the other end.

Sounds like you might be inverting the data at one end or the
other - I'd look into that possibility.

---

Our government it seems has got a new plan...
Seize and search the private records of every man.
No warrants, no judges, no due process required,
With "Homeland Security" the 4th Amendment's retired.
"Total Information Awareness" the project is called,
Oh would our forefathers be aghast and appalled!

http://geocities.com/totalinformationawareness/

---