Serin serout problem

[lerameur]

O ok, because i saw the .BAS and .INC files, so I thougt it would take it.
alright

[lerameur]

HI,
I am almost finish writing my code and I get an error at the receivring end, I have an LCDout and the sending end, it good number, but at the receiving end the information is confused.
meaning the Left is showing the same thing as the sending left.
But the right is showing me number like 12421 (pot at center). I encode and decode he same way, This is weird. what also struck me is that number 12421 is constant, so that when I move my pot there is a variation from 12542 to 12288 .
I also flipped the serin line for left and right and i get the same result..
(the sending and show number varying between 0 to 255)
here is a snippet of the code:

right var word : left var word : temp var word : counter var byte
rightold var word : leftold var word : speedright var word : speedleft var word
loop:
waitfor55:
serin portb.2 , n2400 , temp
if temp <> $55 then goto waitfor55

waitforaa:
serin portb.2 , n2400 , temp : if temp <> $aa then goto waitforaa

serin portb.2, n2400, rightold.LowBYTE : serin portb.2, n2400, rightold.HighBYTE
serin portb.2, n2400, leftold.LowBYTE : serin portb.2, n2400, leftold.HighBYTE

For counter=0 TO 7 'decoding
left.0[counter]=leftold.0[counter*2]
right.0[counter]=rightold.0[counter*2]
Next counter

Lcdout $fe, 1 'Clear screen
Lcdout "Left: ", Dec left
Lcdout $fe, $C0, "Right: ", DEC right
Pause 100

before you ask, here is my sending part:

send:
Lcdout $fe, 1 'Clear screen
Lcdout "Left: ", Dec left
Lcdout $fe, $C0, "Right: ", DEC right

serout portb.2, n2400,[$55,$55,$55,$55,$55,$55,$55,$55,$aa]

serout portb.2, n2400,[rightnew.LowBYTE,rightnew.HighBYTE]
serout portb.2, n2400,[leftnew.LowBYTE,leftnew.HighBYTE]

goto loop
end

[lerameur]

it works now, changed some word to byte ...

[lerameur]

Hey , I just realize that after running my receiving circuit for a minute or so , he Lm7805 gets very hot, Is this normal ?. on my sending circuit it stays cool.
I have on the receiving, an lcd, the receiving RF module, a Pic16F877a and an H-Bridge.. The H bridge is running directly from the battery for the Vs. everything is battery operated

[keithdoxey]

Hey , I just realize that after running my receiving circuit for a minute or so , he Lm7805 gets very hot, Is this normal ?. on my sending circuit it stays cool.
I have on the receiving, an lcd, the receiving RF module, a Pic16F877a and an H-Bridge.. The H bridge is running directly from the battery for the Vs. everything is battery operated

Does the LCD have a backlight ?

If so, try running it from the unregulated power supply after increasing the resistor accordingly.

[lerameur]

yes it does have a backlioght.
The supply is a 12v battery cannot put that directly on thebattery

[keithdoxey]

yes it does have a backlioght.
The supply is a 12v battery cannot put that directly on thebattery

Do you have a series resistor between your 5v supply and the LCD backlight?

If not it will be drawing excessive current which will definately be why the 7805 is cooking.

If you do have a resistor, then increase its value and drive the backlight from the 12v supply. Search for threads about "backlight", one just resurfaced in the last couple of days.