2 applications using adc11

MatIng · Post by **MatIng** » Mon Oct 04, 2004 7:37 am

Hi,

We develop a soft in Vee using adc11.
We can have 4 instruments on the same desktop, with the soft run 4 times each using a different channel.
For the first instrument, we use the channel 1, we initialize the adc11 and it works very well.
But when we use the second, on channel 2, we have invalid values on both instruments, like interferences.
I think, the problem is that we initialize adc11 two times (with adc11_open_unit ; adc11_get_unit_info ; adc11_set_do ) one time for the channel 1, and after for the 2.
If I check the signal with picoscope, the 2 channels get the good signal.

How could I solve my problem ?

thanks

Franck.

markspencer · Post by **markspencer** » Fri Oct 22, 2004 8:12 am

Hi,

I am sorry to hear that you are experiencing problems. When opening the ADC-11 with the open unit you only need call the ADC11_open_unit function once. By calling it more than once you are trying to make different programs perform different takes at the same time.

Therefore, only one piece of software can invoke the ADC-11 at a time. However, you can create one piece of software that can use all 11 channels at the same time in a similar manner as Picoscope or Picolog. I would advise that you look at the examples provide especially the C example.

Best regards,