What is the optimized count value when polling data continuously from USB1608G in 50KBps?

[openedhardware]

I am going to use the raspberry pi to poll analog input data from USB1608G device continuously in the speed of 50ksps.

In the Linux driver, you had developed, I found there is a function something like this: usbAInScanStart_USB1608G(libusb_device_handle *udev, uint32_t count, uint32_t retrig_count, double frequency,uint8_t options)

• Is this correct to use this function to continuously poll data from USB1608G? If so, what is the maximum value of count parameter here?
• Should I use burst mode by setting the 1st bit of options to 1? or normal mode?
• How about the trigger? Should I use it or ignore it?

[openedhardware]

Any thought on this?

[wjasper]

Look at test-usb1608G.c for the "C" option for continuous sampling. In that case, count=0 for continuous sampling. You should ignore retrig_count (unless you want re-triggering) Burst mode tries to sample all the channels at once. For only one channel, burst mode has no effect.