Reply by karthikbalaguru●October 14, 20082008-10-14
On Oct 9, 4:55=A0pm, leilei <huxuelei...@gmail.com> wrote:
> Hi, I have a ADC board which convert analog data to digital data.
> I use software to tirgger the AD Convert.
> But once the AD Convert is started, there is no way to stop it.It will
> produce interrupt all the time, even I do not start another AD
> Convert.
>
> Do all the ADC device work like this?
Can you please tell the ADC that you are using ?
Karthik Balaguru
Reply by Dave Boland●October 10, 20082008-10-10
leilei wrote:
> Hi, I have a ADC board which convert analog data to digital data.
> I use software to tirgger the AD Convert.
> But once the AD Convert is started, there is no way to stop it.It will
> produce interrupt all the time, even I do not start another AD
> Convert.
>
> Do all the ADC device work like this?
Leilei,
Most ADC's have one command to acquire data from one channel. Others
have commands to scan all channels, and some ADC's have commands to do
a continuous scan of either on channel, a group, or all channels. So
what you need to do is look carefully at the command set to insure you
are using the correct start command. In addition, some ADC's can be
configured to raise (or not) an interrupt.
Dave,
Reply by Rich Webb●October 9, 20082008-10-09
On Thu, 9 Oct 2008 04:55:50 -0700 (PDT), leilei <huxuelei630@gmail.com>
wrote:
>Hi, I have a ADC board which convert analog data to digital data.
>I use software to tirgger the AD Convert.
>But once the AD Convert is started, there is no way to stop it.It will
>produce interrupt all the time, even I do not start another AD
>Convert.
>
>Do all the ADC device work like this?
Nope.
--
Rich Webb Norfolk, VA
Reply by leilei●October 9, 20082008-10-09
Hi, I have a ADC board which convert analog data to digital data.
I use software to tirgger the AD Convert.
But once the AD Convert is started, there is no way to stop it.It will
produce interrupt all the time, even I do not start another AD
Convert.
Do all the ADC device work like this?