MM5450, MM5451 chips

Archiver

Hey there, Im really confused on how to control these chips! If
anyone could provide me a description of the serout syntax I would
need to run it, and the pulsout syntax I would love it. Heres the
chips:
MM5451:http://www.radioshack.com/product.asp?catalog%
5Fname=CTLG&category%5Fname=CTLG%5F010%5F005%5F002%5F012&product%
5Fid=900%2D6843

MM5450:http://www.radioshack.com/product.asp?catalog%
5Fname=CTLG&category%5Fname=CTLG%5F010%5F005%5F002%5F012&product%
5Fid=900%2D6842

And here the schemtics on them:
http://www.fulcrum.ru/Documents/CDROMs/NS/pdf/nsc07878.pdf

Any help would be greatly appreciated!

Archiver

I can't really offer a whole lot of help with your situation, but
after looking at the spec sheets on the 5451 chip, I think you'd be
wanting to use a shiftout type instruction where you can connect a pin
off the stamp to the clock input on the 5451. Also you might have to
tweak the shiftout instruction data a little to get the specified
number of bits you need, I think the spec sheet on the 5451 mentioned
something like 35 bits or something like that. Take a look in your
manual about the shiftout/shiftin instructions, you should be able to
apply this to your application with a little tweaking.

Some of these other guys on the list might be able to help you with
your shiftout woes a little better than me if you run into trouble.

Good luck!

--- In basicstamps@y..., binky7000@a... wrote:
> Hey there, Im really confused on how to control these chips! If
> anyone could provide me a description of the serout syntax I would
> need to run it, and the pulsout syntax I would love it. Heres the
> chips:
> MM5451:http://www.radioshack.com/product.asp?catalog%
> 5Fname=CTLG&category%5Fname=CTLG%5F010%5F005%5F002%5F012&product%
> 5Fid=900%2D6843
>
> MM5450:http://www.radioshack.com/product.asp?catalog%
> 5Fname=CTLG&category%5Fname=CTLG%5F010%5F005%5F002%5F012&product%
> 5Fid=900%2D6842
>
> And here the schemtics on them:
> http://www.fulcrum.ru/Documents/CDROMs/NS/pdf/nsc07878.pdf
>
> Any help would be greatly appreciated!