1. USBPix Readout System using FE-I4B: Initial Setup Scans/Troubleshooting
Jimin Kim and Austin Piehl
University of Washington
Department of Physics

2. Table of Contents Basic Hardware Setting Basic Software Setting
Basic Scan results
Troubleshooting
Future Plan

3. Basic Hardware Setting
FE-I4A
FE-I4B
Missing the Ribbon Cable socket
Ethernet Jack is already connected properly

4. Basic Hardware Setting
FE-I4A Connection
FE-I4B Connection
In both setup, we supply 2.2V from the external power supply to the USBPix FEI4 Adapter

5. Basic Software Setting
The FE Flavour is still showing up as FEI4A

6. Basic Software Setting
After initializing the controllers and DCS objects
The voltage is all set to 2.0V manually but doesn’t go up more than ~1.54V

7. Basic Software Setting
After initialization, the current supplied to the USBPix is around 0.47A (FEI4 - ~0.16A)
The voltage stays the same after configuring all active modules
(FEI4 - ~0.68A)
There is no problem with 4-Pin Power Cable

8. Basic Test Results RX_DELAY_SCAN DIGITAL_TEST
The scan explicitly execute the phase alignment of USBPix’s 160Mhz Clock, modifying the phase setting; Usually run after each power cycle
Error due to the not enough voltage supplied?

9. Troubleshooting
STControl showing FE Flavour as FEI4 instead of FEI4B (Solved)
Solution
Create a new configuration file from the scratch and set the FE Flavour as “FEI4B from the scratch”
LDO Regulator voltage bottleneck issue
Directly connect the FEI4B chip to the Power Supply and feed 2.0V directly
Another solution from STControl?
Current reading from the power supply staying the same after configuration
Test again after successfully supplying 2.0V to single chip
Failure to run the RX_DELAY_SCAN and DIGITAL_TEST
Test again after successfully supplying 2.0V to single chip

10. Solution for the wrong Flavour
Select “Generate FE-I4B from scratch

11. Solution for the wrong Flavour
FE Flavour now correctly indicates FE_I4B

12. Future Plan Successfully run the DIGITAL and ANALOG Test
Successfully reproduce the entire tuning procedure that has been done in FEI4A
Update the Sharepoint after Successful Tuning
Draft is done, just need to confirm the case of FEI4B

13. Backup Slide