Nokia lcd include , small footprint to suit pic16's

[astanapane]

i've tried the following but didnt work.

rbuf  var byte
wbuf var word

checkt: 
arraywrite RBUF,[DEC2 speed1/100,DEC2 speed2//100,0] ; for example speed1 = 56 and speed2 is 85
LCDSTR 0,2, RBUF ; ----------> this gives 0085
wbuf = rbuf                                 
if wBUF > 5685 then 
gosub limit
return

then i tried:

checkt: 
arraywrite RBUF,[DEC speed1,DEC2 speed2//100,0] ; for example speed1 = 56 and speed2 is 85
LCDSTR 0,2, RBUF ; ----------> this gives 5685 which is what i want....BUT!!!! when i try to check if wbuf > than 5685, it doesnt work
wbuf = rbuf                                 
if wBUF > 5685 then   ' IF THE TEMPC IS GREATER THAN 37 C THEN LIGHT UP THE BLUE LED
high lata.0
ELSE
low lata.0
endif
return

how is it possible to combine those two speed1 and speed2 vars in one var? and check then the result as an integer number?

[Dave]

You have only declared "rbuf var byte" It is being used as a pointer as far as I can see. It will be NO LARGER than 255.

[astanapane]

Hi dave,

i solved it.

i used the rbuf as var word

Then i didnt add the commands for

arraywrite rbuf,[dec speed1,dec2 speed2,0]

i used the above command only to combine it with the following and present the number to the lcd.

So the solutions for me is:

checkt:
RBUF = (SPEED1*100) + SPEED2
IF RBUF > 5682 THEN ; THIS IS JUST AN EXAMPLE
GOSUB LIMIT
RETURN

Thanks a lot for the help all of you.

[astanapane]

additional missing line from the previous message

arraywrite rbuf,[dec speed1,dec2 speed2,0]

i used the above command only to combine it with the following and present the number to the lcd.

LCDSTR x,y, rbuf

in any case the solution is to use the rbuf as word, multiply by 100 the speed1 and add speed2.

[richard]

i solved it.


i used the rbuf as var word

has not solved it at all , you cannot safely use arraywrite rbuf,[dec speed1,dec2 speed2,0] with a word var as the destination
the destination for the text chrs generated by arraywrite must be an existing chr array big enough to contain the text generated plus a null terminator
not doing so will lead to enormous problems

secondy to expect the result of arraywrite to be usable as a number is absurd , its a textual chr string

[astanapane]

there is a missandestanding. my fault because i consfused you by using the same name for the variable SBUF and RBUF in the previous posts.

vars.....

SBUF var byte
RBUF var word

Program in the main loop includes the command:

arraywrite SBUF, [dec speed1, dec2 speed2,0] ;

then there is a checkSpeed LABEL

checkSpeed:

RBUF = (speed1*100) + speed2
if RBUF > 5687 then; just an example
gosub limit
endif
return

And that is what it works for me. It is under testing for a day now, and havent seen any strange behaviour.

thanks.

[richard]

SBUF var byte

sadly still woefully incorrect.
that reserves 1 byte , you need at least 5 bytes