README.md

S10FPGA

Overview

Library containing Bluespec and Verilog components targetting Stratix 10 FPGAs.

Low-level library components

ChipID

A simple Bluespec wrapper around the chipid.ip component to make it easy to read the unique ChipID on Stratix 10 FPGAs.

• chipid.ip - IP definition file
• ChipID.bsv - BSV wrapper around the chipid library

S10Synchronizer

Wrapper around Intel's standard clock-crossing synchronizer. There are four DFFs (which is a bit excessive!): the first latches data in the source clock domain, the next three are inside the standard synchronizer to perform the clock crossing. Note that Quartus specific directives inside the altera_std_synchronizer library component ensure timing closure is met.

• S10Synchronizer.bsv - BSV interface
• s10syncronizer.v - Verilog wrapper around the altera_std_synchronizer library component

S10FIFO

Wrapper around Intel's dual-clock FIFO to ensure timing closure when transitioning more than one bit-width of data between clock domains.

• s10dcfifo.v - Verilog instantiation of the dcfifo component, parameterised on data width and FIFO depth
• s10dcfifo.sdc - timing constraints for the above
• S10FIFO.bsv - BSV wrapper around the dcfifo instantiation

Higher-level components

BERT

A bit error-rate tester for SerialLite III. The built design is meant to be instantiated inside Qsys. It provides a 32-bit wide AXI4Lite interface to internal control/status registers to allow serial links to be tested. See the NIOS II code main.c in the de10pro-seriallite3 repository provides examples of use.

• BERT.bsv - the BSV implementation

SerialLite3

Wrapper around Intel's SerialLite III IP for the Stratix-10 FPGA and tested on the Terasic DE10Pro board.

• s10_seriallite3_4lane_wrapper.v - wrapper around the SerialLite III IP including instantiation of the required transmitter PLLs for four lanes (100Gbps links comprising four 25Gbps links bonded together).
• s10_seriallite3_4lane.ip - IP parameters for SerialLite III
• xcvr_atx_pll_s10_htile.ip - IP parameters for the transmitter PLLs (two per four channel link)
• s10_seriallite3_4lane.qsf - serial pin definitions including specification of analog properties of the transmitter, etc.
• SerialLite3.bsv - BSV wrapper providing interfaces suitable for Qsys

Tutorial Material

Tuning Serial Links

Analog parameters for serial links can be tuned using System Console. Please see the demonstration video below. The tuned analog (PMA) parameters are included in the DE10Pro.qsf file.