missing high bits of word val

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- 25th December 2009, 05:47
archendekta

missing high bits of word val

what i was hoping to accomplish was to put the counter val into the 17th element of the array of type word.

but, it is only putting an 8-bit value and not a 16-bit value. i'm missing the high bits.

i need a small push here to help me get the 16-bit val into an element of the array.

Code:

Tst_Array VAR word[20] Counter VAR word FOR counter=0 to 65534 Tst_Array[17]=counter gosub Print2LCD NEXT counter
- 25th December 2009, 07:45
sayzer

Hi there,

What do you have in "Print2LCD" subroutine? If it is not a light speed transportation project, can you show us?

Also,

Why not simplify your code as below?

Code:

FOR Tst_Array[17]=0 to 65534 gosub Print2LCD NEXT Tst_Array[17]
- 25th December 2009, 18:41
archendekta

light speed project, that is funny! ;-)

it just sends the array to a 2x16 lcd. hmmm, maybe i'm missing a modifier here

Code:

Print2LCD FOR Ndx=0 to 18 hserout [ Tst_Array[Ndx] ] NEXT Ndx RETURN
- 25th December 2009, 22:18
mackrackit

I do not have my manual with me but what if you change:
Tst_Array VAR word[20]
to
Tst_Array VAR byte[20]
- 28th December 2009, 05:22
rdxbam

hey mackrackit & others

i changed type to byte with the same results.

when array is of type word, and using my debugger i see the element's value as of a word type having 16 bits. so the issue isn't with the array elements. i thinking it is the hserout performing as it is designed to do.

what i'm seeing is the function hserout, and i assume the software version, serout, is sending values up to dec 255 then rolls back to dec 0 and starts the low bits all over again.

going to try some things ... back soon ...

thx
- 28th December 2009, 05:26
Archangel

Tst_Array[Ndx].highbyte, Tst_Array[Ndx].lowbyte ?
- 29th December 2009, 06:37
archendekta

compiler returns this error: This style array syntax not supported

i'm looking at this page now for some pointers,
http://www.picbasic.co.uk/forum/show...ht=style+array

maybe there is a limitation on the usart for sizes >byte or there is a register config setting i've missed on this 16f88.

i'm looking into it, back later ...
- 29th December 2009, 07:16
sayzer

Quote:

Originally Posted by archendekta

compiler returns this error: This style array syntax not supported

i'm looking at this page now for some pointers,
http://www.picbasic.co.uk/forum/show...ht=style+array

maybe there is a limitation on the usart for sizes >byte or there is a register config setting i've missed on this 16f88.

i'm looking into it, back later ...

Then have a word variable like

Code:

Temp VAR WORD

Then, modify the print routine as follow.

Code:

Print2LCD FOR Ndx=0 to 18 Temp = Tst_Array[Ndx] HSEROUT [Temp.LowByte,Temp.HighByte ] NEXT Ndx RETURN
- 31st December 2009, 07:14
archendekta

that worked sayzer. thanks.

curious, this is the format for arrays in PBP to get word, longint values through usarts to radios?
- 4th January 2010, 08:19
archendekta

it's working now. now that you helped with the high-low byte. on the receiving end i'm just multiplying the highbyte by a constant and adding it to the lowbyte to get my 16bit value.

many thanks