TSL230 issues

skynugget

hey all im playing with a tsl230 light to frequency converter on an sx28. With the following code, my output is not the same as if i where to use the stock demo code for the bs2. im just testing with the sensitivity disabled for now. When i run the following sx/b code, the value of reading increments by a value of 256.. ie 0 256 512 768 ....... running the bs2 code i have a value of 80 (in my current light conditions) on the sx28 its sitting at 0 until flash a light on it. any ideas? thanks in advace!!

sx/b 2.0 code:

DEVICE          SX28, OSCXT2, BOR42
FREQ            4_000_000
STACK           16


TSL230                pin        RA.2 input
tmpw1                 var         word
reading                 var         word

GET_LIGHT            func        2    word

PROGRAM Start


Start:
     reading = get_light
    WATCH reading, 16, udec
    BREAK
  
GOTO start



func GET_LIGHT
    tmpW1 = 0    
    count TSL230, 200, tmpw1
    return tmpw1
endfunc

Zoot

The Stamp demo uses a 100ms measuring period for COUNT, not 200ms. Could that be it? The only other thing might be if you have the enable/sensitivity pins wired differently when you moved it to your SX project board. Grasping a bit at straws here...

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When the going gets weird, the weird turn pro. -- HST

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skynugget

hey zoot, i tried it with 100ms and it exhibited even more weird (really didnt work at all). So i figured the sx was sweeping it to fast or something. im using a PDB with a stamp and an sx in it running at the same time... im just moving one wire to test.

does COUNT work differently in SX/B then in stamp basic?

Bean

Skynugget,
· I had a look at the compiled code, and there is a bug in the COUNT command.
· I will post a corrected version of the compiler tomorrow.

· Thanks for catching that...

Bean.

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There is a fine line between arrogance and confidence. Make sure you don't cross it...



Post Edited (Bean (Hitt Consulting)) : 5/10/2009 9:03:02 PM GMT

skynugget

WoW i caught a bug!!! I'm somebody now! thanks for checking it out bean.

Shawn Lowe

LOL! Good one skynugget!

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Shawn Lowe


When all else fails.....procrastinate!

Bean

skynugget,
· I have posted version 2.00.23 of the compiler.·http://forums.parallax.com/attachment.php?attachmentid=0
· This should fix the bug you found.
· Thanks again for your post. It is users like you who make the compiler a better product.

· Let us know if it works now.

Bean.

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There is a fine line between arrogance and confidence. Make sure you don't cross it...



Post Edited (Bean (Hitt Consulting)) : 5/11/2009 2:09:43 PM GMT

skynugget

Thanks Bean, Its Fixed!!!

For anyone else check the sx2.0 thread, the link posted above no longer works cause Bean fixes so much stuff so fast:

http://forums.parallax.com/forums/default.aspx?f=7&m=323767

Post Edited (skynugget) : 5/12/2009 12:18:57 AM GMT