Chester-Gillon

0. Introduction

xilinx_7_series_bitstream.c was originally written for Xilinx 7 series devices, before subsequently adding support for Xilinx UltraScale and UltraScale+ devices.

1. 7K160T has no unprocessed data at the end of the bit stream

The 7K160T doesn't use SSI.

Convert the bit to bin file, to remove the header so the contents of the file is word aligned:

Chester-Gillon

0. Introduction

This contains notes about using a AMD Alveo™ U200 Data Center Accelerator Card (Active)

The card was second hand and has been installed in slot 2 on a HP Z6 G4 workstation, with the 8-pin aux power cable connected. This is a PCle3 x16 slot connected to the CPU. The slot 2 BIOS settings were the following, with Hot Plug enabled since had previously used other FPGA boards in the slot:

Slot 2 PCI Express x16
	Disable
	*Enable
Slot 2 Option Rom Download

Chester-Gillon

0. Introduction

This contains notes about using the Xilinx FPGA development Kintex ku3p ultra scale + development XCKU3P-FFVB676. The branding is Alibaba Cload with part number AS02MC04.

Read the Device DNA over JTAG and using AMD Device Lookup reports:

SpeedGrade1E

Device	XCKU3P
Package-Pin	FFVB676
Revision Code	AAZ

Chester-Gillon

0. Introduction

Notes about trying to track the maximum RSS (Resident Set Size) for a MATLAB parallel pool.

This is using: Ubuntu 24.04.2 LTS with the following installed:

>> ver
-----------------------------------------------------------------------------------------------------------
MATLAB Version: 9.8.0.1873465 (R2020a) Update 8
MATLAB License Number: 

Chester-Gillon

0. Introduction

Some notes about an initial look at AlmaLinux 10. Downloaded live images from the links in How to download and write images

For testing copied the images to a MicroSD card. E.g.:

$ sha256sum -c CHECKSUM\(1\)
AlmaLinux-10.0-x86_64_v2-Live-GNOME.iso: OK

Chester-Gillon

0. Introduction

Contains some notes about use of a HP USB-C to RJ45 Adapter G2

1. HP Z4 G4 AlmaLinux 8.10

Using Kernel 4.18.0-553.51.1.el8_10.x86_64

The output of dmesg after plugged into a front panel USB-C port. There was a delay of several minutes before connected to an Ethernet switch and the following output ends with the link coming up:

Chester-Gillon

0. Introduction

fork() Causes DMA Buffer in Physical Memory to Retain Stale Data on Subsequent Writes describes an issue with a forked process causing issues with memory for DMA. It wasn't clear what mechanism was being used to allocate the memory for DMA.

The test_dma_descriptor_credits program was modified with the option of spawning a child process to see if could replicate the issue when VFIO is used for DMA mappings.

Used the following FPGA designs, which exercise both the memory mapped and stream interface test functions:

• dma_blkram (TEF1001)
• XCKU5P_DUAL_QSFP_dma_stream_loopback
• Nitefury Project-0 version 0x2

Chester-Gillon

0. Notes about Intel Ethernet drivers under Windows

My Sniffer Isn't Seeing VLAN, 802.1q, or QoS Tagged Frames shows the register key which is applicable to different Adapter Driver. Initially was unsure how to find which driver was was used by a particular adapter. Subsequently found that the following provide a mapping of the Windows Driver for different adpaters:

• Supported Operating Systems for Retail Intel® Ethernet Adapters : Looks to be for add-in network adapters
• Supported Operating Systems for Intel® Ethernet Controllers (LOM) : Looks to be for on-board network interfaces

1. Investigating multiple VLAN support under Windows 11

Using:

• HP Z6 G4 workstation

Chester-Gillon

0. Introduction

Some notes about using Vivado under Windows.

1. Missing VCOMP140.DLL

Vivado 2024.2 was installed in Windows 11 Pro for Workstations Version 24H2 (OS Build 26100.3323), after selecting Vitis as the top level instsallation.

On attempting to run vivado_lab get:

Chester-Gillon

0. Introduction

Some notes about using Xilinx ISE 14.7, which is the most recent version, for devices not supported under Vivado

1. Old libstdc++ libraries limited XPS functionality

Under Ubuntu 24.04.2 LTS on starting xps only got the ability to create a text file.

Xilinx Platform Studio (EDK) GUI not fully initiating in Linux describes the issue.