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This list is for discussion of the design and implementation of field-programmable gate array based processors and integrated systems. It is also for discussion and community support of the XSOC Project (see http://www.fpgacpu.org/xsoc).

ADC - sukumar - Oct 11 2:17:00 2004




Hi all,

I am using Altera Quartus II ver4.0 tool - VHDL langauage.
Please any body guide me how to do ADC with/without using analog
related library..?

Thank you,
--sukumar






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Re: ADC - REZA SADEGHY - Oct 13 17:43:00 2004



i think , i can help u.

if u want , send for me a email.

my email is
bye ---------------------------------





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Re: ADC - Kolja Sulimma - Oct 14 3:18:00 2004

sukumar wrote: >Hi all,
>
> I am using Altera Quartus II ver4.0 tool - VHDL langauage.
>Please any body guide me how to do ADC with/without using analog
>related library..?
>
>Thank you,
>--sukumar >
You need at least an analog RC filter to do that.
You also need a comparator, but as Austin Lesea from Xilinx explains in
Figure 10 of patent
US000006351145B1
you can use the differential input buffers of your FPGA for that task.

Kolja Sulimma





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Re: ADC - Martin Schoeberl - Oct 14 3:58:00 2004

>> I am using Altera Quartus II ver4.0 tool - VHDL langauage.
>>Please any body guide me how to do ADC with/without using analog
>>related library..?
>>
>>Thank you,
>>--sukumar
>>
>>
>>
> You need at least an analog RC filter to do that.
> You also need a comparator, but as Austin Lesea from Xilinx explains in
> Figure 10 of patent
> US000006351145B1
> you can use the differential input buffers of your FPGA for that task.
>
> Kolja Sulimma

If you don't care very much about the (absolute) accuracy you can even use a normal
input as 'comperator'. I've done that for a simple temperature sensor where I needed only
two thresholds. As external hardware only two passive components (a NTC
thermistor and a capacitor) where necessary.

Martin
----------------------------------------------
JOP - a Java Processor core for FPGAs:
http://www.jopdesign.com/




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Re: ADC - s sukumar - Oct 28 22:58:00 2004


Thank you!
Tell me how

regards,
sukumar

REZA SADEGHY <> wrote:
i think , i can help u.

if u want , send for me a email.

my email is
bye ---------------------------------

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