Help with BS2SX Analog/digital code

Siri

This is my first attempt to write some cose for OEM Basic Stamp 2sx to doa analog to digital conversion.
I used the Board of Education BS2 to practice and the attached code worked which was taken from Matt Gilland's book.
I also read the Basic Stamp Manual - "pulsout" command the only difference is Duration units and the Maximum pulse width.
I really do not see if I need to change any part of the code and when I run the code in BS2sx - it does not work.
The hardware is connected exactly the same to the same pins etc.

I would appreciate any help to sove this problem.

Thank you.
Siri

Franklin

Why not attach the real code so we could test it by running it? It also would make sure you made no mistakes in transcribing the code.

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- Stephen

Siri

Stephen,

That is the exact code Iused in the BS2 and BS2sx.

I get the 8 bit results from the ADC0832CCN and it shows up in the debug window when I run it in the BS2 but not with the BS2sx OEM.

The· BS2 and BS2sx pins used are:

PINS 3,4 and 5 from the stamp are connected to pins CS,CLK and D0 respectively.

I have attached the circiut and the code page from the book.

Thanks

Siri

Franklin

You know the BS2sx is nearly 2.5 times faster than the BS2 and the pulses are shorter by that factor?

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- Stephen

Siri

I tried running the code using "PULSOUT and SHIFTIN" commands and changing the duration of the pulse.

I get "11111111" for about a fraction of a sec. and then "00000000" but nothing happens when you continue to turn pot in any direction.

The code is attached.

Thanks

Siri