Lattice Semiconductor IspMACH 4256ZE Manuel utilisateur

March 2012

Revision: EB65_01.1



ispMACH 4256ZE Breakout Board Evaluation Kit 

User’s Guide

ispMACH 4256ZE Breakout Board

Evaluation Kit User’s Guide

Introduction

Thank you for choosing the Lattice Semiconductor ispMACH®4256ZE Breakout Board Evaluation Kit!

This user’s guide describes how to start using the ispMACH 4256ZE Breakout Board, an easy-to-use platform for

evaluating and designing with the ispMACH 4256ZE CPLD. Along with the board and accessories, this kit includes

a pre-loaded hardware test program. You may also reprogram the on-board ispMACH 4256ZE device to review

your own custom designs.

Note: Static electricity can severely shorten the lifespan of electronic components. See the Storage and Handling

section for handling and storage tips.

Features

The ispMACH 4256ZE Breakout Board Evaluation Kit includes:

•ispMACH 4000ZE Breakout Board – The board is a 3” x 3” form factor that features the following on-board

components and circuits:

– ispMACH 4256ZE CPLD (LC4256ZE-5TN144C)

– USB mini-B connector for power and programming

– Eight LEDs

– 4x15 prototype area

– Four 2x20 expansion header landings for general I/O, JTAG, and external power

– 1x8 expansion header landing for JTAG

– 3.3V and 1.8V supply rails

•Pre-loaded Demo – The kit includes a pre-loaded counter design that highlights use of the embedded ispMACH

4000ZE oscillator and programmable I/Os configured for LED drive.

•USB Connector Cable – The board is powered from the USB mini-B socket when connected to a host PC. The

USB channel also provides a programming interface to the ispMACH 4256ZE JTAG port.

•Lattice Breakout Board Evaluation Kits Web Page – Visit www.latticesemi.com/breakoutboards for the latest

documentation (including this guide), demo designs, and drivers for the kit.

The content of this user’s guide includes demo operation, programming instructions, top-level functional descrip-

tions of the Breakout board, descriptions of the on-board connectors, and a complete set of schematics.

ispMACH 4256ZE Breakout Board

Evaluation Kit User’s Guide

Figure 1. ispMACH 4256ZE Breakout Board, Top Side

Left Side

Two 2x20 Header

Landings (J3, J4)

LED Array 4x15 Prototype Area

Right Side

Two 2x20 Header

Landings (J5, J6)

USB Interface

(J2)

JTAG Header Landing

(J1)

Storage and Handling

Static electricity can shorten the lifespan of electronic components. Please observe these tips to prevent damage

that could occur from electro-static discharge:

• Use anti-static precautions such as operating on an anti-static mat and wearing an anti-static wrist-band.

• Store the evaluation board in the packaging provided.

• Touch a metal USB housing to equalize voltage potential between you and the board.

Software Requirements

You should install the following software before you begin developing new designs for the Breakout board:

• FTDI USB Hardware Drivers (www.latticesemi.com/breakoutboards) or ispVM System 17.9 (required for re-pro-

gramming)

• Optional: ispLEVER Classic 1.4 (ispMACH 4000ZE CPLD support)

Demonstration Design

Lattice provides a pre-programmed demo to illustrate basic operation of the ispMACH 4256ZE CPLD device. The

design integrates an up-counter with the on-chip oscillator and timer (OSCTIMER) hardware feature. The design

alternates to CPLD outputs, illuminating LEDs D1, D3, D5 and D7 then LEDs D2, D4, D6 and D8.

Note: To restore the factory default demo or program it with other Lattice-supplied examples see the Download

Demo Designs section of this document.

ispMACH 4256ZE Breakout Board

Evaluation Kit User’s Guide

The preprogrammed demonstration design is an up counter and an output multiplexer to drive an LED array. The

demo shows a clock generator based on the ispMACH 4256ZE on-chip oscillator and timer (OSCTIMER) hardware

feature. The counter module is clocked at <5kHz to illustrate the ease at which very low speed timer functions can

be implemented with a CPLD. The 15-bit up counter advances each second. An output mux selects between hexa-

decimal patterns AAh or 55h depending on the count. The resulting light pattern will appear as an alternating pair

of lit LEDs per row.

Figure 2. Counter Demo Block Diagram

2x4 LED

Array

ispMACH 4256ZE

15-bit

Up Counter

Clock

Generator < 5kHz

AAh

55h

0: Count < 2

1: Count >= 2

Run the Demonstration Design

WARNING: Do not connect the Breakout Board to your PC before you follow the driver installation procedure of

this section.

Communication with the Breakout Board with a PC via the USB connection cable will require the FTDI chip USB

hardware drivers contained in the Software Requirements section. Loading these drivers enables the computer to

reliably recognize and program the Breakout Board. Drivers are distributed by Lattice as a stand-alone package or

with ispVM System version 17.9 or later. Use one of the two procedures below to install.

To load the FTDI chip USB hardware drivers via ispVM System:

1. Browse to www.latticesemi.com/breakoutboards and download ispVM System software.

2. Install ispVM System software.

3. Run ispVM System. Choose ispTools > Install/Uninstall LSC USB/Parallel Port Driver.

The LSC 32/64-Bit USB Drivers Install/Uninstall dialog appears.

4. Select FTDI USB 32-Bit Driver or FTDI USB 64-Bit Driver then click Install.

After a few moments, ispVM will indicate the installation is complete.

5. Click OK, then click Close from the LSC 32/64-Bit USB Drivers Install/Uninstall dialog.

6. Choose File > Exit to close ispVM System.

7. Connect the USB cable from a USB port on your PC to the board’s USB mini-B socket (J2). After connection is

made, a green Power LED (D9) will light indicating the board is powered on.

8. Red LEDs will light and start to flash according to the preprogrammed demonstration design.

See the Troubleshooting section of this guide if the board does not function as expected.

ispMACH 4256ZE Breakout Board

Evaluation Kit User’s Guide

To load the FTDI chip USB hardware drivers via the stand-alone package:

1. Browse to www.latticesemi.com/breakoutboards and download the FTDI chip USB Hardware driver package.

2. Extract the FTDI chip USB Hardware driver package to your PC hard drive.

3. Connect the USB cable from a USB port on your PC to the board’s USB mini-B socket (J2). After connection is

made, a green Power LED (D9) will light indicating the board is powered on.

4. If you are prompted, “Windows may connect to Windows Update” select No, not this time from available

options and click Next to proceed with the installation. Choose the Install from specific location (Advanced)

option and click Next.

5. Search for the best driver in these locations and click the Browse button to browse to the Windows driver folder

created in the Download Windows USB Hardware Drivers section. Select the CDM 2.04.06 WHQL Certified

folder and click OK.

6. Click Next. A screen will display as Windows copies the required driver files. Windows will display a message

indicating that the installation was successful.

7. Click Finish to install the USB driver.

8. Red LEDs will light and start to flash according to the preprogrammed demonstration design.

See the Troubleshooting section of this guide if the board does not function as expected.

Download Demo Designs

A demo is preprogrammed into the Breakout Board, however over time it is likely your board will be modified. Lat-

tice distributes source and programming files for demonstration designs compatible with the Breakout Board.

To download demo designs:

1. Browse to the Lattice Breakout Board web page (www.latticesemi.com/breakoutboards). Select the ispMACH

4256ZE Demo Application download and save the file.

2. Extract the contents of ispMACH4256ZE_BB_Eval_Kit_v01.0.zip to an accessible location on your hard

drive.

The demo design directory, LC4256ZE_CTL, is unpacked.

Recompile a Demonstration Project with ispLEVER Classic

Use the procedure described below to recompile a demo project for the Breakout Board.

1. Install and license ispLEVER Classic software.

2. Run the ispLEVER Classic Project Navigator.

3. Browse to the demo design directory, LC4256ZE_CTL, and open the LC4256ZE.syn project file.

4. From the Source in project window, select the target device. 

The Fit Design process appears in the Processes for current source window.

5. Select Fit Design, right-click and choose Start.

After a few moments the JEDEC programming file is output.

6. See the Programming with ispVM section for details on downloading a programming file to the board.

ispMACH 4256ZE Breakout Board

Evaluation Kit User’s Guide

Programming with ispVM

A demonstration design is pre-programmed into the Breakout Board by Lattice. To restore a Breakout Board to fac-

tory settings or load an alternative demo design, use the procedures in this section.

To install ispVM programming tools:

1. Install and license ispVM System software.

2. Connect the board to a host PC using the USB port header connection.

3. Follow the USB Cable Interface procedure below to program the evaluation board.

The Breakout Board is equipped with a built-in USB-based programming circuit. This consists of a USB PHY and a

USB connector. When the board is connected to a PC with a USB cable, it is recognized by the ispVM System soft-

ware as a USB Download Cable. The ispMACH 4256ZE can then be scanned and programmed using the ispVM

System software.

To program a demo programming file:

1. From the Start menu run ispVM System.

ispVM appears.

2. Choose Options > Cable and IO Port Setup…

The Cable and I/O Port Setup dialog appears.

3. Make the following selections:

Cable Type: USB2

Port Setting: FTUSB-0

Click OK.

4. Choose ispTools > Scan Chain.

The New Scan Configuration Setup window appears. The LC4256ZE device appears in the device list.

5. Right-click the LC4256ZE entry and choose Edit Device…

The Device Information dialog appears.

6. From the Data File section, click the Browse button.

The Open Data File dialog appears.

7. Browse to the <Demo Dir> folder, select <Demo>.jed, and click Open. From the Operation list choose Erase,

Program, Verify and click OK.

8. Choose Project > Download.

ispVM reprograms the evaluation board.

Programming requires about 10 seconds. A small timer window will appear to show elapsed programming time. At

the end of programming, the configuration setup window should show a “PASS” in the Status column.

ispMACH 4256ZE Breakout Board

This section describes the features of the ispMACH 4256ZE Breakout board in detail.

Overview

The ispMACH 4256ZE Breakout Board is a complete development platform for the ispMACH 4256ZE CPLD. The

board includes a prototyping area, a USB program/power port, an LED array, and header landings with electrical

connections to most of the CPLDs programmable I/O, power and JTAG pins. The board is powered by the PC’s

ispMACH 4256ZE Breakout Board

Evaluation Kit User’s Guide

USB port or optionally with external power. You may create or modify CPLD program files using ispLEVER Classic

software and reprogram the board using ispVM software.

Figure 3. ispMACH 4000ZE Breakout Board Block Diagram

ispMACH4256ZE-5T

N144C

2x20 Header

Landing (J3)

LED

Array

20 GPIO

USB

Controller

USB Mini B

Socket

A/Mini-B

USB Cable JTAG

Programming 8

2x20 Header

Landing (J4)

35 GPIO

2x20 Header

Landing (J5)

40 GPIO

2x20 Header

Landing (J6)

15 GPIO

1x8 JTAG Header

Landing (J1)

Table 1 describes the components on the board and the interfaces it supports.

Table 1. Breakout Board Components and Interfaces

Component/Interface Type Schematic Reference Description

Circuits

USB Controller Circuit U2: FT2232H USB-to-JTAG interface and dual USB UART/FIFO IC

USB Mini-B Socket I/O J1:USB_MINI_B Programming and debug interface

Components

LC4256ZE CPLD U4: LC4256ZE-5TN144C 256-macrocell CPLD packaged in a 20 x 20mm,

144-pin TQFP

Interfaces

LED Array Output D8-D1 Red LEDs

Four 2x20 header landings I/O

J3: header_2x20

J4: header_2x20

J5: header_2x20

J6: header_2x20

User-definable I/O

1x8 header landing I/O J1: header_1x8 Optional JTAG interface

4x15 prototype area J9 Prototype area 100mil centered holes

Subsystems

This section describes the principle subsystems for the ispMACH 4256ZE Breakout Board in alphabetical order.

Clock Sources

All clocks for the counter demonstration designs originate from the ispMACH 4256ZE CPLD on-chip oscillator and

timer (OSCTIMER) block. You may use an expansion header landing to drive a CPLD input with an external clock

source.

Expansion Header Landings

The expansion header landings provide access to user GPIOs, primary inputs, clocks, and Bank 0/1 VCCO pins of

the ispMACH 4256ZE. The remaining pins serve as power supplies for external connections. Each landing is con-

figured as one 2x20 100 mil.

Table 2. Expansion Connector Reference

Item Description

Reference Designators J3, J4, J5, J6

Part Number header_2x20

ispMACH 4256ZE Breakout Board

Evaluation Kit User’s Guide

Table 3. Expansion Header Pin Information (J3)

Pin Number Function LC4256ZE Pin

1IO_C12 4

2GND n/a

3IO_C10 5

4GND n/a

5IO_C8 6

6GND n/a

7IO_C6 7

8GND n/a

9IO_C4 8

10 GND n/a

11 IO_C2 9

12 GND n/a

13 IO_D14 11

14 GND n/a

15 IO_D12 12

16 GND n/a

17 IO_D10 13

18 GND n/a

19 IO_D8 14

20 GND n/a

21 IO_D6 15

22 GND n/a

23 IO_D4 16

24 GND n/a

25 IO_IA1 17IN

26 GND n/a

27 IO_IA2 20IN

28 GND n/a

29 IO_E2 21

30 GND n/a

31 IO_E4 22

32 GND n/a

33 IO_E6 23

34 GND n/a

35 IO_E8 24

36 GND n/a

37 IO_E10 25

38 GND n/a

39 IO_E12 26

40 GND n/a

ispMACH 4256ZE Breakout Board

Evaluation Kit User’s Guide

Table 4. Expansion Header Pin Information (J4)

Pin Number Function LC4256ZE Pin

1IO_F2 28

2IO_A2 130

3IO_F4 29

4IO_A4 131

5IO_F6 30

6IO_A6 132

7IO_F8 31

8IO_A8 133

9IO_F10 32

10 IO_A10 134

11 IO_F12 33

12 IO_A12 135

13 IO_G12 39

14 IO_B2 138

15 IO_G10 40

16 IO_B4 139

17 IO_G8 41

18 IO_B6 140

19 IO_G6 42

20 IO_B8 141

21 IO_G4 43

22 IO_B10 142

23 IO_G2 44

24 IO_B12 143

25 IO_IA3 38IN

26 IO_IA5 144IN

27 IO_IA4 45IN

28 GND n/a

29 IO_H12 48

30 NC n/a

31 IO_H10 49

32 GND n/a

33 IO_H8 50

34 CLK1 54CLK

35 IO_H6 51

36 GND n/a

37 IO_H4 52

38 CLK0 128CLK

39 IO_H2 53

40 GND n/a

ispMACH 4256ZE Breakout Board

Evaluation Kit User’s Guide

Table 5. Expansion Header Pin Information (J5)

Pin Number Function LC4256ZE Pin

1IO_P2 125

2IO_M12 98

3IO_P4 124

4IO_M10 97

5IO_P6 123

6IO_M8 96

7IO_P8 122

8IO_M6 95

9IO_P10 121

10 IO_M4 94

11 IO_P12 120

12 IO_M2 93

13 IO_IB10 117IN

14 IO_IB8 92IN

15 IO_IB9 110IN

16 IO_IB7 89IN

17 IO_O2 116

18 IO_L4 88

19 IO_O4 115

20 IO_L6 87

21 IO_O6 114

22 IO_L8 86

23 IO_O8 113

24 IO_L10 85

25 IO_O10 112

26 IO_L12 84

27 IO_O12 111

28 IO_L14 83

29 IO_N12 105

30 IO_K2 81

31 IO_N10 104

32 IO_K4 80

33 IO_N8 103

34 IO_K6 79

35 IO_N6 102

36 IO_K8 78

37 IO_N4 101

38 IO_K10 77

39 IO_N2 100

40 IO_K12 76

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