How to set up a clk signal and receive bits from a 16bit A/D converter

laser-vector

Hey all,

Im reading through one of deSilva's tutorials and am slowly learning assembly language..

my goal is to communicate with a 16bit A/D converter using mostly assembly (but if spin works well for this, that would be nice to know too).

i learn much faster when i am able to manipulate code that i can understand! so while im learning assembly language i would really like to be able to look at some basic code concepts so that the terms and symbols are in my mind.

if anyone has a code example they could share and wouldn't mind commenting on it just a little, that would be really helpful!!!

thank you!

[edit] i should specify that this is a serial A/D converter
the datasheet is here: http://focus.ti.com/lit/ds/symlink/ads7813.pdf

JonnyMac

I posted a Spin-only MCP3208 (12-bit ADC) driver in ObEx that should be easy to understand and manipulate for your particular device. Once you get things working in Spin the transition to PASM will be easier.

http://obex.parallax.com/objects/625/

Tubular

There's also an ADS7822 (12 bit) object by Bill Henning that uses ASM which might assist
http://obex.parallax.com/objects/85/

laser-vector

Tubular wrote: »

There's also an ADS7822 (12 bit) object by Bill Henning that uses ASM which might assist
http://obex.parallax.com/objects/85/

oh wow! the methods provided in that object are really easy to understand. Im still trying to evaluate the assembly code, but the spin makes perfect sense!!

thanks!!!!