Re: ADC/DAC card with RTLinux

I purchased a PCI bus D/A board from Measurement Computing and wrote a 
RTL driver for it. We are currently using it for servo positioning in an 
industrial automation / robotics application. Took me 2 very enjoyable 
days to write the driver.

The board that I used had "trim DACs" to set the offset and gain for the 
output DAC's various output formats - unipolar, bipolar and voltage 
range - so there were no jumpers or pots to tweak.

The values for trim DACs for all possible formats were stored in onboard 
non volatile memory (serial EEPROM I think) at the factory. I thought it 
was a nice board, easy to understand and easy for which to write a driver.

My driver is part of a RTL process that interfaces several boards, but 
if you would like to have it, I will be happy to send the whole thing to 
you or will pull out the code pertaining to the D/A driver and send just 
that.

Wayne

Dmitry wrote:
>    Hi  All !
> 
> I intend to use ADC/DAC card in a RT-Linux project.
> Could anybody give me any advices / share experience
> about suitable cards for RTLinux and writing driver ?
> 
> The should have 16bit ADC and 12bit(or more) DAC.
> It is not very important how many channels has a card,
> two channels for DAC and two for ADC are enough.
> But the card should be fast enough
> to give approx. 50 000 values every second.
> 
> Best regards,
> 
> Dmitry.
> 
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