Imperx VCE-PRO, Руководство пользователя

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FPGA The heart of the VCE-PRO is a dense Field Programmable Gate Array
( FPGA ). This FPGA implements all of the functions related to video
data capture, storage and DMA. The firmware contents of the FPGA can
be upgraded while in the field by following the instruction outlined in
Section 3 of this document entitled ‘Firmware Upgrade from Web Site’.
In System Programming:
The VCE-PRO design supports ISP programming during operation. This
capability is useful when the FPGA code needs to be upgraded and the
unit is at a remote customer location. The programming is accomplished
using a JamPlayer utility, which runs on the host PC. The JamPlayer
utility downloads a new FPGA image into the EEPROM via the Cardbus
interface. The FPGA provides a set of I/O pins which are connected to the
EEPROM’s JTAG interface. The JamPlayer utility toggles these I/O pins,
which are mapped into a register in configuration space, and thus can
communicate with the EEPROM’s JTAG controller and affect a
programming operation.
Configuration
EEPROM
FPGA
Cardbus
Connector
I/O
I/O
I/O
I/O
TCK
TMS
TDI
TDO
ISP
TCK
TMS
TDI
TDO
Cardbus
Interface
Not
Used
PC
w/JamPlayer
VCE-PRO Card
Figure 2 – EEPROM Programming In System
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