Programming Circuit; Figure 3.1. Programming Block Using Usb Interface - Lattice Semiconductor ECP5 User Manual

ECP5 VIP Processor Board
Evaluation Board User Guide

3. Programming Circuit

The Mini-B USB connector is used for programming the board by using Lattice Diamond
Figure 3.1 shows the programming block of ECP5 VIP processor board.
The Mini-B USB connector interfaces to the FTDI FT2232H IC. The FTDI IC works with Diamond programmer software to
provide interfaces for:

JTAG – to program LFE5UM-85F and its SPI Flash and ispClock

SPI – to program external devices connected to the ECP5 VIP processor board
USB Mini-B
(J2)
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8
SPI/JTAG
FTDI Chip
(U1)

Figure 3.1. Programming Block using USB Interface

®
Programmer software.
SPI Flash
(U52)
SPI/
Upstream
JTAG
connector
(J10)
SPI/
Downstream
JTAG
connector
(J12)
LFE5UM-85F-
JTAG
BG756 (U17)
JTAG
ispCLOCK5406D
(U53)
FPGA-EB-02001-1.2