CERN CMS Project Host / SD Card Configuration Data Access Dave - - PowerPoint PPT Presentation

CERN

CMS Project

Host / SD Card Configuration Data Access

Dave Ojika Alex Madorsky

• Dr. Darin Acosta
• Dr. Ivan Furic

Project Description

• Design of an FPGA SD card system with

support for data communication with host processor over PCIe link

• SD card stores configuration data needed to

program Core FPGA

• Configuration data can be written to, or read

from host via high-bandwidth link enabled by PCIe

PCIe

Host PC PCI Controller Configuration Controller FLASH Flash Memory Controller Chip-to-Chip

AXI Bus To Core FPGA

CURRENT SYSTEM

• Decoupled functional

units into separate entities

• Simulated Configuration

Controller block

• Will replace Flash

Memory Controller block

• PCIe Controller not

currently part of design

Host Interface Unit SD Card SD Card Controller

M A S T E R S L A V E M A S T E R S L A V E

Wishbone Bus

Bus Arbiter Host SD Card Interface Unit

General House Keeping

SD CARD SYSTEM ARCHITECTURE

• Integrated SD Card Controller IP
• CRC, 4-bit data transfer, DMA
• Designed and simulated Wishbone bus and controller
• Simulating and testing Host Interface and SD Card Interface
• Next: Test hardware design on Virtex 7 with micro SD Card

Control Data

Bus Legend

SD Card Controller Wishbone Bus Arbiter External Host Interface Logic SD Card Interface Logic

Host

DESIGN SYNTHESIS

Verification in progress… 