AVR-Chat

I have come out with the exact schematic and algorithm for DAC 
program  using AD7528. Assume you connect to the following:

   1. 8 x bit Data input you can connect to all of Atmega Port D,
   2. For CS, DAC A/B & WRITE, you can connect to Port C [pin 0, 1,
2] respectively,

For algorithm,

    1. Set All of Port D to output mode, and
    2, Port C [0,1,2] also to output mode and set to high.
    3. To Write data ,

         -    Write 8 output data to Port D,
         -    Select DAC A/D, by write 1 bit data to Port C1,
         -    Bring CS pin to low by write '0' to Port C0,
         -    Bring WRITE pin to low by write '0' to Port C2.

        after that you bring the WRITE & CS pin to high by
             Write '1' to Port C2, and write '1' to Port 0.


Any idea on the actual code? 





--- In AVR-Chat@yahoogroups.com, John Samperi <samperi@...> wrote:
>
> At 08:18 PM 9/12/2007, you wrote:
> >11 ports lines of Atmega16 where PortC0-PortC7
> >would be input to the 8-bit parallel AD7528 chip
> 
> If you can avoid the use of portc2-portc5 for the chip,
> then you will have the JTAG port available for debugging
> or programming without too much messing around.
> 
> 
> Regards
> 
> John Samperi
> 
> ********************************************************
> Ampertronics Pty. Ltd.
> 11 Brokenwood Place Baulkham Hills, NSW 2153 AUSTRALIA
> Tel. (02) 9674-6495       Fax (02) 9674-8745
> Email: john@...
> Website  http://www.ampertronics.com.au
> *Electronic Design * Custom Products * Contract Assembly
> ********************************************************
>