Driver for ADC 7841 Analogue Digital Converter

Driver for ADC 7841 Analogue Digital Converter

[johna]

I've put this driver on my web page at :

http://phaedra.apana.org.au/johna

This is not an attempt to do anything "official", merely point out 
that it's there so that anyone wanting to develop a driver for a serial
type chip (or use that chip) has the option of a driver to start with.

I'm not aware of any such web pages at present. Let me know if there's
a more comprehensive one, I'll retract my driver, no point in cluttering
the web.

If anyone has ideas about where else to announce out this web page, I'm
happy to listen.

I previously tried posting to this list via a newsgroup - email gateway,
but suspect it was not able to post to this list.  I'm not on the list,
but should be able to see responses on this gateway.

Cheers,

-- 
John August

Actions speak louder than spending habits.

Re: Driver for ADC 7841 Analogue Digital Converter

[johna]

I've put this driver on my web page at :

http://phaedra.apana.org.au/johna

But, my original comments ommitted the fact that there is a data in
pin, as well as a data out pin. The code itself is fine, and reflects
this.

The correct pin allocations are :

port 0x278

bit 0, pin 2, Clock
bit 1, pin 3, Chip Select
bit 2, pin 4, Data out to ADC
bits 3-7 user available

port 0x279

bit 3, pin 15, Busy
bit 4, pin 13, Data in from ADC
bits 5-7 user available

And I've changed the code on my home page to reflect this.

Gatic,

-- 
John August

Actions speak louder than spending habits.