FPGAs and IRRADIATED FPGAs for the LHCb

UPGRADE

Bin Gui, Ray Mountain

Communication

Communication Data line

Sending 8-bit pattern to FPGA through TNG-5, then the data being shifted out and back to the PC.

Since we are using LabView to control and generate the data, the frequency is just 32Hz.

Control lineTo check the FPGA’s status and get response from it.

Hardware

Transition Board

TNG-5

FPGA

Power Supply forTransition Board

Core

TTL LVDS

TNG-5A3PE Eval Board

Transition Board

PC

Router

IP

JTAGUSB

FlashPro3

Handshaking

To found the communication between FPGA and PC, it includes three parts: Control program (LabView) Hardware (Mapping the ports, connect all

devices, etc) Firmware (Configuring FPGA)

Control Program (Front Panel)

Command Table (HEX)

Sending from PCMeaning of the

commandResponse from

FPGAMeaning of the

response

AAStatus of the

FPGA

AB OK

AEDon’t Understand

and Please Repeat

BA Start SEU testAC BUSY

BD Send ResultAC BUSY

… … … …

Firmware (FPGA configuration)

Not finish, need to be modified.

1 2 3

4

4

56

7

To do list

Finish the work of communication between FPGA and PC.

Soldering transition board. Memory, static register, etc. SEU test Irradiation test

Backup - PLL

200MHz (by PLL) 350MHz (by PLL)

40MHz (oscillator on the board)

The clock is LVTTL signal, but observing from the waveform,

the amplitude varies a lot.?

BackupColor Convention on CAT 5E Primary

Color of the line of the connector

Pin number on Transition

Board

Port on Transition

BoardPort on FPGA

Pin number on FPGA

Orange Receiver 2 R1+ TX1+ 7

Blue Receiver 1 R1- TX1- 8

Green Receiver 6 R2+ TX2+ 9

Red Receiver 7 R2- TX2- 10

Black Driver 2 D1+ RX1+ 11

Yellow Driver 3 D1- RX1- 12

Brown Driver 6 D2+ RX2+ 13

White Driver 5 D2- RX2- 14

**‘+‘ refers to positive signal of the transmit/ receive side of balanced signal Transmission.**‘-‘ refers to negative signal of the transmit/ receive side of balanced signal Transmission