SysPLL failed / Could not initialize main board PLL
This is a major problem. It might be caused by:
- Unstable power supply. Replace it or use an other power source.
- Damaged or wrong USB cable for power delivery. Replace the USB cable by an original Aaronia certified cable.
- Wrong or faulty PC USB port for power delivery. Check if the USB port is a 3.1 GEN2. A USB 3.0 will not offer enough power.
If you cant fix the problem you might be facing a faulty SPECTRAN V6 frontend PCB. In this case please contact your SPECTRAN dealer or our service.
Uploaded files:
Hello,
We're experiencing a PLL Lock error whenever we attempt to take a measurement of Rx12 at an IQ rate of 184Msamples/s. It locks when only attempting to measure Rx1 or Rx2, but not Rx12. We have verified the power supply is using the power brick provided with the Spectran. We have verified the USB ports are at least USB 3.1. We have verified the Spectran is up-to-date (both the FPGA and the suite). I'll include a screenshot where it is visible that the error occurs. Note that the PLL Lock error occurs upon turning on the Spectran V6. We cannot attempt a measurement. We are using the Spectran V6 Plus 2000XA-6 with suite version 3.0.1 Daily Build 15767.
Is the Spectran V6 Plus 2000XA-6 capable of reading Rx12 simultaneously at 184Msamples/s? If so, how can this be accomplished? Why are we seeing this PLL lock error?
Thank you,
Uploaded files:
Additional comment on the "PLL lock error" problem.
We tried to analyse the usb version used with UsbTreeView.
when connecting the spectran with usb cable provided by you, the usb is USB 3.1 Gen 1.
When connecting my mobile (still using the same cable and same computer/usb port), the usb is USB 3.2 Gen 2.
We suspect the spectran to use USB 3.1 Gen 1.
Hello,
if you use RX1+RX2 you will see both channels working at 184MHz. There seems to be a software glitch why the same setup is not working in RX12 mode. We are working on a fix for that and let you know when the glitch is fixed.
Thank you for working on this glitch. It is critical to our needs that the two are read simultaneously like guarenteed by operating mode RX12.
Hello,
question 1 : do you have an explanation on the usb generation used with the spectran V6 ? how can we see the current data transfer speed to ensure spectran uses full transfer speed ?
question 2 : We are experiencing usb overflow errors when using IQ rate 122MHz and rx12. we store iq measurement in files and see rx1 and rx2 are not synchronized. we suspect the usb overflow errors causing this issue. how can we ensure all data are transfered to the computer with no error ?
we used dsp buffer mode to Max resilience with no success.
regards
we also tried to follow this recommendation with no success :
Large page support not enabled (Windows) – Aaronia SPECTRAN V6 Support Forum
we need your help
regards,
sebastien
