Return value of u3.voltageToDACBits()

[teletoby]

If I use u3.voltageToDACBits() on my U3-HVs with 0.0 volts as argument I get slightly negative values due to some calibration errors. When I afterwards feed the bits value to the getFeedback function, the U3-HV set the corresponding DAC output to a value close to maximal voltage, which I understand but which also is a bit counter-intuitive. Wouldn't it be a better idea to cap the output value of the function voltageToDACBits to 0x0000 if the result of the conversion is smaller than 0 or to 0xFFFF if the results value is larger?

[davelopez01]

I would expect voltageToDACBits to have a cap on the return value since similar C code we provide does it. I'll look into updating that.

[davelopez01]

I updated all voltageToDACBits methods to have a max/min on the returned value. Thanks for letting me know about this.

[teletoby]

Hello,

cool! Thanks. I am impressed how fast you answered. Btw. I am really
happy that we chose LabJack devices. I was hesitating to buy NI USB
devices but was not very keen to get them working under linux…

Installation of LabJack devices is easy and fast and basic programming
really simple. However, I had the impression that the users guide is a
bit vast… important information is a bit dispatched everywhere over the
whole guide that I was not really eager to read all. So, I found the best way
to try out the device was to launch ipython, import u3 and explore the device
from inside ipython.

Best regards,
Tobias Gresch

On 14 févr. 2014, at 01:18, David Lopez notifications@github.com wrote:

I updated all voltageToDACBits methods to have a max/min on the returned value. Thanks for letting me know about this.

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