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I have no idea why you think it wont work...because I have already tested it

My defines are declared in the .INC file and not in the program.
The interrupts are disabled here:


ADCON1 =...

I have written a few lines of code to implement common functions such as displaying a single line and clearing a single line on the 18F4550...spent a long time trying to get this working...this is...

I got my RF module to work...I was using the +VCC from the USB port to power the receiver and that was causing some continuous ripple

I used a battery supply,connected the grounds,used a 0.01uF...

Its true, I tested the TX/RX using a wire initially and there were absolutely no problems with the baudrate or noise etc

Now that I have attached the RF modules I get errors..its probably because...

I am sending a sync packet of '239' in a frame of 6 characters, But I find that there is no need for error checking as I am using this mainly for text messaging..

dave, do you have any kind of...

Yeah, youre right, the module was really cheap ... it doesnt have a crystal based oscillator, rather there is an inductor coil which can be adjusted by a screwdriver....

I think it would be better...

Differnet results each time...


Anyway I have finally got the TX/RX to work !

Heres the section of the TX code which works:

IF USBBufferIn[7]=239 then
SEROUT...

I havre tried all the above statements....

DEFINE HSER_CLROERR 1 is now inculded...

however im still getting errors...
i transmit : 239 65 66 67
I receive : 254 254 6 134 128
(5 chars...

Thanks, I'll try that now...

I have tried it with a DEFINE OSC 48 as well....infact the USB interface works fine...i tried to switch on/off the LED pins on you demo and they work ...

The config fuses are
24 0E 3E 00 00 83...

Hi everyone... Im working on a device to receive serial data wirelessly (2400 baud) and then transfer it to a PC using USB. I have completed the hardware and the PIC interface however im unable to...