Lattice Semiconductor MachXO3 User manual

MachXO3 Starter Kit User Guide
EB95 Version 1.2, March 2016

2
MachXO3 Starter Kit User Guide
Introduction
Thank you for choosing the Lattice Semiconductor MachXO3 Starter Kit!
This user’s guide describes how to start using the MachXO3 Starter Kit, an easy-to-use platform for evaluating and
designing with the MachXO3 ultra-low density FPGA. Along with the board and accessories, this kit includes a pre-
loaded demonstration design. You may also reprogram the on-board MachXO3 device to review your own custom
designs.
The MachXO3 Starter Kit currently features the MachXO3L-6900C (NVCM Based) or the MachXO3LF-6900C
(Flash Based) device in the 256-ball 0.8 mm pitch caBGA package. The kit also includes a Serial Flash Memory for
demonstrating external SPI boot-up. The external Flash Memory also supports a dual-boot mode in addition to
Golden boot/fail-safe boot options.
See the Ordering Information section for more information.
Note: Static electricity can severely shorten the lifespan of electronic components. See the Storage and Handling
section of this document for handling and storage tips.
Features
The MachXO3 Starter Kit includes:
•MachXO3L/LF Board – The board is a 3” x 3” form factor that features the following on-board components and
circuits:
— MachXO3 FPGA – LCMXO3L-6900C-5BG256C (NVCM Based) or LCMXO3LF-6900C-5BG256C (Flash
Based)
— USB mini-B connector for power and programming
— 4-Mb Serial Flash Memory for boot image and dual-boot support.
— Eight LEDs
— 4-position DIP switch
— Momentary push button switch
— 40-hole prototype area
— Four 2 x 20 expansion header landings for general I/O, JTAG, and external power
— 1 x 8 expansion header landing for JTAG
— 1 x 6 expansion header landing for SPI/I2C
— 3.3 V and 1.2 V supply rails
•Pre-loaded Demo – The kit includes a pre-loaded counter design that highlights use of the embedded MachXO3
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 MachXO3 JTAG port.
•Lattice Development Kits and Boards Web Page – Visit www.latticesemi.com/breakoutboards for the latest
documentation (including this guide) and drivers for the kit.
The content of this user’s guide includes demo operation, programming instructions, top-level functional descrip-
tions of the Starter Kit, descriptions of the on-board connectors, and a complete set of schematics.

3
MachXO3 Starter Kit User Guide
Figure 1. MachXO3 Board (MachXO3L Version), Top Side
Two 2 x 20 Header
Landings (J3, J4)
Two 2 x 20 Header
Landings (J6, J8)
JTAG Header
Landing (J1)
SPI/I2C Header
Landing (J7)
MachXO3L PLD
(U5)
USB Mini-B
Socket (J2)
Power LED,
Blue (D1)
FTDI USB to
UART/FIFO IC (U1)
Push Button
Switch (SW1)
4-Position DIP
Switch (SW2)
4 x 10 40-Hole
Prototype array
LED array
(D9-D2)

4
MachXO3 Starter Kit User Guide
Figure 2. MachXO3 Board (MachXO3L Version), Bottom Side
SPI Flash Boot
Memory (U6)
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 Starter Kit:
• Lattice Diamond®design software
• FTDI Chip USB hardware drivers (installed as an option within the Diamond installation program)
MachXO3 Device
This board currently features the MachXO3L-6900C FPGA which offers embedded Non-Volatile Configuration
Memory (NVCM) technology or the MachXO3LF-6900C FPGA which offers embedded Non-Volatile Flash technol-
ogy for instant-on operation in a single chip. Numerous system functions are included, such as two PLLs and 256
kbits of embedded RAM plus hardened implementations of I2C and SPI. Flexible, high performance I/Os support
numerous single-ended and differential standards including LVDS. The 256-ball BGA package provides up to 206
user I/Os in a 14 mm x 14 mm form factor. A complete description of this device can be found in the MachXO3
Family Data Sheet.

5
MachXO3 Starter Kit User Guide
Demonstration Design
Lattice provides a simple, pre-programmed demo to illustrate basic operation of the MachXO3 device. The design
integrates an up-counter with the on-chip oscillator. The pre-programmed design resides in the external Serial
Flash Memory (SPANSION S25FL204K or S25FL208K).
Note: To restore the factory default demo and program it with other Lattice-supplied examples see the Download
Demo Designs section of this document.
Run the Demonstration Design
Upon power-up, the preprogrammed demonstration design automatically loads and drives the LED array in a 1-hertz
pattern. The program shows a clock divider driven either by the MachXO3 internal oscillator or the external FTDI clock
chip. The divider modules (heartbeat.v and kitcar.v) are clocked at the default frequency of 12 MHz which divides the
clock to cycle the LED display approximately once per second. The resulting light pattern is determined by the DIP
Switch (SW2) setting as shown in Ta b le 1.
Figure 3. Demonstration Design Block Diagram
MachXO3
X1
12.0 MHz
OSCH
12.09 MHz Kitcar.v
Heartbeat.v
SW2
4-Position DIPSW
1 x 8
LED
Array
XO3L_SK_blink.v
SW1
Momentary PB Async Reset
Table 1. DIP Switch Setting and LED Behavior
Switch Setting LED Behavior
DIP_SW[1] 0 (Down) External 12.0 MHz (X1)
1 (Up) Internal 12.09 MHz (OSCH)
DIP_SW[2:4] 001 1 Hz Sweep
011 1 Hz Left-Right
111 1 Hz Blink
Others 1 Hz Alternating
WARNING: Do not connect the board to your PC before you follow the driver installation procedure of this section.
Communication between the board and a PC via the USB connection cable requires installation of the FTDI chip
USB hardware drivers. Loading these drivers enables the computer to recognize and program the board. Drivers
can be loaded as part of the installation of Lattice Diamond design software or Diamond Programmer, or as a
stand-alone package.

6
MachXO3 Starter Kit User Guide
To load the FTDI Chip USB hardware drivers as part of the Lattice Diamond installation:
1. Select Programmer Drivers in the Product Options of Lattice Diamond Setup.
2. Select FTDI Windows USB Driver or All Drivers in the LSC Drivers Install/Uninstall dialog box.
3. Click Finish to install the USB driver.
4. After the driver installation is complete, connect the USB cable from a USB port on your PC to the board’s USB
mini-B socket (J2). After the connection is made, a blue Power LED (D1) will light indicating the board is pow-
ered on.
5. The demonstration design will automatically load and drive the LED array in a repeating pattern.
To load the FTDI chip USB hardware drivers via the stand-alone package on a Windows system:
1. Download the FTDI Chip USB Hardware Drivers package from the Lattice web site.
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 the connec-
tion is made, a blue Power LED (D1) 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. The demonstration design will automatically load and drive the LED array in a repeating pattern.
See the Troubleshooting section of this guide if the board does not function as expected.
Download Demo Designs
The counter demo is preprogrammed into the 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 Starter Kit. The demo
design for the board is available on the web.
To download demo designs:
1. In the Lattice web site, browse to Development Kits and Boards. Go to the MachXO3L Starter Kit or to the
MachXO3LF Starter Kit web page. In the Documentation section, select the Design File tab. Select
MachXO3L Starter Kit Demo Program or the MachXO3LF Starter Kit Demo Program and save the file.
2. Extract the contents of MachXO3L_Starter_Kit.zip or the MachXO3LF_Starter_Kit.zip to an accessible location
on your hard drive.
3. Open the Blink.ldf project file in the Lattice Diamond design software.
4. Run the Process Flow and regenerate the Bitstream file.
Continue to Programming a Demo Design with the Lattice Diamond Programmer.

7
MachXO3 Starter Kit User Guide
Programming a Demo Design with the Lattice Diamond Programmer
The demonstration design is pre-programmed into the MachXO3 board by Lattice. If you have changed the design
but now want to restore the board to factory settings, use the procedure described below.
To program the MachXO3 device:
1. Install, license and run Lattice Diamond software. See www.latticesemi.com/latticediamond for download and
licensing information.
2. Connect the USB cable to the host PC and the MachXO3 board.
3. From Diamond, open the Blink.ldf project file.
4. Click the Programmer icon.
5. Click Detect Cable. The Programmer will detect the cable (Cable: USB2, Port: FTUSB-0). If the cable is not
detected, see the Troubleshooting section.
6. Click Device Properties.
7. Change Access Mode to SPI Flash Programming.
8. Choose SPI Flash Background Erase, Program, Verify operation.
9. Select Blink_impl1.bit programming file.
10. Under SPI Flash Options, change Vendor to SPANSION and change Device to SPI-S25FL204K or
S25FL208K (as appropriate). Click OK.
11. Click the Program icon. When complete, PASS is displayed in the Status column.
12. Change Access mode to NVCM Programming Mode and NVCM Refresh, then click Program (or power-
cycle the Starter Kit board) to initiate a re-boot from the SPI flash.

8
MachXO3 Starter Kit User Guide
MachXO3 Starter Kit
This section describes the features of the MachXO3 Starter Kit in detail.
Overview
The Starter Kit is a complete development platform for the MachXO3 FPGA. The board includes a prototyping
area, a USB program/power port, an LED array, switches, and header landings with electrical connections to most
of the FPGA’s programmable I/O, power, and configuration pins. The board is powered by the PC’s USB port or
optionally with external power. You may create or modify the program files and reprogram the board using Lattice
Diamond software.
Figure 4. MachXO3L/LF-6900C Block Diagram
MachXO3L/LF-6900C device
2 x 20 Header
Landing (J6)
LED
Array
GPIO
8
2 x 20 Header
Landing (J3)
GPIO
2 x 20 Header
Landing (J4)
Bank 1
Bank 2
Bank 0
2 x 20 Heade r
Landing (J8)
Bank 3, 4 and 5
GPIO
GPIO
USB
Controller
USB Mini B
Socket
1 x 8Header
Landing (J1,
Optional JTAG
Interface)
JTAG
Programming
1 x 6 Header
Landing (J7,
Optional SPI,
I2C Intrfaces)
Bank 0, 2
DIP_SW4

9
MachXO3 Starter Kit User Guide
Tabl e 2 describes the components on the board and the interfaces it supports.
Table 2. Starter Kit Components and Interfaces
Component/Interface Type
Schematic
Reference Description
Circuits
USB Controller Circuit U1: FT2232H USB-to-JTAG interface and dual USB UART/FIFO IC
USB Mini-B Socket I/O J2:USB_MINI_B Programming and debug interface
Components
LCMXO3L or
LCMXO3LF FPGA
U5: LCMXO3L-
6900C-5BG256C or
LCMXO3LF-6900C-
5BG256C
6900-LUT device packaged in a 14 mm x14 mm, 
256-ball caBGA
Interfaces
LED Array Output D9-D2 Red LEDs
Push Button Switch Input SW1 Momentary User Input
4-position DIP Switch Input SW2 User inputs
Four 2 x 20 Header
Landings I/O
J3: header_2x20
J4: header_2x20
J6: header_2x20
J8: header_2x20
User-definable I/O
1 x 8 Header Landing I/O J1: header_1x8 Optional JTAG interface
1 x 6 Header Landing I/O J7: header_1x6 Optional SPI/I2C interfaces
4 x 10 40-Hole 
Prototype Area Prototype area 100 mil centered holes.
Test Points Power
TP1: +3.3 V
TP2: +1.2 V
TP3: GND
Power and ground reference points
Subsystems
This section describes the principle sub systems for the Starter Kit in alphabetical order.
Clock Sources
Clock sources for the LED demonstration designs originate from the MachXO3 on-chip oscillator or the 12 MHz
crystal X1. You may use an expansion header landing to drive a FPGA input with an external clock source.
Expansion Header Landings
The expansion header landings provide access to user GPIOs, primary inputs, clocks, and VCCO pins of the
MachXO3. The remaining pins serve as power supplies for external connections. Each landing is configured as
one 2 x 20 100 mil.
Table 3. Expansion Connector Reference
Item Description
Reference Designators J3, J4, J6, J8
Part Number header_2x20

10
MachXO3 Starter Kit User Guide
Table 4. Expansion Header Pin Information (J3)
Header Pin Number –6900C Function MachXO3 Ball
1VCCIO0 D5,D12,G8,G9
2VCCIO0 D5,D12,G8,G9
3PT36C/INITn A13
4PT36D/DONE C13
5PT22A F8
6PT35B B12
7PT35A C12
8PT26B E11
9PT27B E10
10 PT27A D10
11 GND —
12 GND —
13 PT26A F9
14 PT27C/JTAGENB C10
15 PT17B E8
16 PT21B E9
17 PT14B E7
18 PT21A D8
19 PT16B D7
20 PT15B C7
21 GND —
22 GND —
23 PT10B C5
24 PT14A D6
25 PT16A E6
26 PT9A C4
27 PT25B A10
28 PT17A F7
29 PT22B D9
30 PT25A B9
31 GND —
32 GND —
33 PT11B B6
34 PT15A B7
35 PT9B B5
36 PT11A A5
37 PT12B B4
38 PT10A A4
39 GND —
40 PT12A A3

11
MachXO3 Starter Kit User Guide
Table 5. Expansion Header Pin Information (J4)
Header Pin Number –6900C Function MachXO3 Ball
1VCCIO1 E13,H10,J10,M13
2VCCIO1 E13,H10,J10,M13
3PR19D K12
4PR19C K13
5PR23A M14
6PR24B N14
7PR18B L14
8PR24A N16
9PR23B M15
10 PR21B M16
11 GND —
12 GND —
13 PR21A L15
14 PR18A L16
15 PR17A K14
16 PR16B K16
17 PR17B K15
18 PR15B J14
19 PR12A/PCLKT1_0 H14
20 PR16A J15
21 GND —
22 GND —
23 PR15A J16
24 PR11B H15
25 PR12B/PCLKC1_0 H16
26 PR9A G15
27 PR11A G16
28 PR5B F15
29 PR7B F16
30 PR2B/R_GPLLC_FB E15
31 GND —
32 GND —
33 PR5A E16
34 PR3B/R_GPLLC_IN E14
35 PR3A/R_GPLLT_IN D16
36 PR2C C15
37 PR2A/R_GPLLT_FB D14
38 PR7A F14
39 PR9B G14
40 PR2D B16

12
MachXO3 Starter Kit User Guide
Table 6. Expansion Header Pin Information (J6)
Header Pin Number –6900C Function MachXO3 Ball
1VCCIO2 K8,K9,N5,N12
2VCCIO2 K8,K9,N5,N12
3PB35B T12
4PB34B T14
5PB35A R11
6PB34A R13
7PB31A T11
8PB28B M11
9PB31B P11
10 PB28A N10
11 GND —
12 GND —
13 PB26B T10
14 PB29A P10
15 PB26A R9
16 PB29B R10
17 PB23A/PCLKT2_1 T9
18 PB21B N9
19 PB23B/PCLKC2_1 P9
20 PB21A M8
21 GND —
22 GND —
23 PB18B T8
24 PB15B L8
25 PB18A P8
26 PB15A M6
27 PB13A R7
28 PB16B/PCLKC2_0 R8
29 PB13B P7
30 PB16A/PCLKT2_0 T7
31 GND —
32 GND —
33 PB10B L7
34 PB9B R6
35 PB10A N6
36 PB9A T5
37 PB7B R4
38 PB4A P4
39 PB7A T3
40 PB4B T4

13
MachXO3 Starter Kit User Guide
Table 7. Expansion Header Pin Information (J8)
Header Pin Number –6900C Function MachXO3 Ball
1VCCIO5 E4
2VCCIO3 M4
3PL9D H6
4PL25B N3
5PL25A M2
6PL22B/PCLKC3_0 M1
7PL22A/PCLKT3_0 L2
8PL19A L1
9PL19B L3
10 PL19D L5
11 GND —
12 GND —
13 PL19C K4
14 PL12A/PCLKT4_0 J1
15 PL15B K1
16 PL15A J2
17 PL12B/PCLKC4_0 J3
18 PL11A H3
19 PL10B H2
20 PL11B H1
21 GND —
22 GND —
23 PL9A G2
24 PL10A G1
25 PL6B/PCLKC5_0 F2
26 PL8B F1
27 PL4A/L_GPLLT_IN E2
28 PL6A/PCLKT5_0 E1
29 PL4D D2
30 PL3B/L_GPLLC_FB D1
31 GND —
32 PL2D C2
33 PL4C C1
34 PL9B G3
35 PL2C B1
36 PL3A/L_GPLLT_FB D3
37 PL4B/L_GPLLC_IN E3
38 PL8A F3
39 PL9C F5
40 VCCIO4 H7,J7

14
MachXO3 Starter Kit User Guide
Figure 5. J3/J4 Header Landing Callout
J3 J4
Top Side
J3 J4
12 12
VCCIO0 VCCIO0 VCCIO1 VCCIO1
A13 C13 K12 K13
F8 B12 M14 N14
C12 E11 L14 N16
E10 D10 M15 M16
GNDGND GNDGND
F9 C10 L15 L16
E8 E9 K14 K16
E7 D8 K15 J14
D7 C7 H14 J15
GND GND GND GND
C5 D6 J16 H15
E6 C4 H16 G15
A10 F7 G16 F15
D9 B9 F16 E15
GND GND GND GND
B6 B7 E16 E14
B5 A5 D16 C15
B4 A4 D14 F14
GND A3 G14 B16
39 40 39 40
Figure 6. J6/J8 Header Landing Callout
J6 J8
Top Side
J6 J8
12 12
VCCIO2 VCCIO2 VCCIO5 VCCIO3
T12 T14 H6 N3
R11 R13 M2 M1
T11 M11 L2 L1
P11 N10 L3 L5
GNDGND GNDGND
T10 P10 K4 J1
R9 R10 K1 J2
T9 N9 J3 H3
P9 M8 H2 H1
GNDGND GNDGND
T8 L8 G2 G1
P8 M6 F2 F1
R7 R8 E2 E1
P7 T7 D2 D1
GND GND GND C2
L7 R6 C1 G3
N6 T5 B1 D3
R4 P4 E3 F3
T3 T4 F5 VCCIO4
39 40 39 40

15
MachXO3 Starter Kit User Guide
Figure 7. J1 Header Landing and LED Array Callout
LCMXO2-7000HE
4TG144C
D9 LED0
D8LED1
D7 LED2
D6 LED3
D5 LED4
D4 LED5
D3 LED6
D2 LED7
H11
LED Net
LED Array
MachXO3L
Ball
J13
J11
L12
K11
L13
N15
P16
Top Side
TCK
GND
TMS
nc
nc
TDI
TDO
VCCIO0
8
1
J1 J1
J7
D9
D2
DIP_SW1
DIP_SW4
MCLK
SISPI
SPISO
SN
SCL
SDA
6
1
J7
DIP_SW1
DIP_SW2
DIP_SW3
DIP_SW4
N2
Net
MachXO3L
Ball
P1
M3
N1
SW2
MachXO3 FPGA
The LCMXO3L/LF-6900C-5BG256C is a 256-ball caBGA package FPGA device which provides up to 206 usable
I/Os in a 14 mm x 14 mm package. 150 I/Os are accessible from the board headers, switches and LEDs.
Table 8. MachXO3 FPGA Interface Reference
Item Description
Reference Designators U5
Part Number LCMXO3L-6900C-5BG256C (NVCM) or 
LCMXO3LF-6900C-5BG256C (Flash)
Manufacturer Lattice Semiconductor
Web Site www.latticesemi.com
Programming Interface Circuits
For power and programming an FTDI USB UART/FIFO IC converter provides a communication interface between a
PC host and the JTAG programming chain of the Starter Kit. The USB 5 V supply is also used as a source for the
3.3 V supply rail. A USB mini-B socket is provided for the USB connector cable.
Table 9. USB/JTAG Interface Reference
Item Description
Reference Designators U1
Part Number FT2232HL
Manufacturer Future Technology Devices International (FTDI)
Web Site www.ftdichip.com

16
MachXO3 Starter Kit User Guide
Table 10. JTAG Programming Pin Information
Description MachXO3 Pin
Test Data Output C6:TDO
Test Data Input A6:TDI
Test Mode Select B8:TMS
Test Clock A7:TCK
Table 11. SPI Programming Pin Information
Description MachXO3 Pin
Master Clock/Config Clock P6:MCLK/CCLK
Serial Data Input P13: SI/SISPI
Serial Data Output T6: SO/SPISO
SPI Slave Select R12: SN
Table 12. I2C Programming Pin Information
Description MachXO3 Pin
Serial Data C9:SDA
Serial Clock A9:SCL
LEDs
A blue LED (D1) is used to indicate USB 5V power. Eight red LEDs are driven by I/O pins of the MachXO3 device.
Table 13. Power and User LEDs Reference
Item Description
Reference Designators Red LEDs (D2, D3, D4, D5, D6, D7, D8, D9)
Blue LEDs (D1)
Part Number LTST-C190KRKT (D2-D9)
LTST-C190TBKT (D1)
Manufacturer Lite-On It Corporation
Web Site www.liteonit.com
Power Supply
3.3 V and 1.2 V power supply rails are converted from the USB 5 V interface when the board is connected to a host
PC.
Test Points
In order to check the various voltage levels used, test points are provided:
• TP1: +3.3 V
•TP2: +1.2 V
• TP3: GND
USB Programming and Debug Interface
The USB mini-B socket of the Starter Kit serves as the programming and debug interface.
JTAG Programming: For JTAG programming, a preprogrammed USB PHY peripheral controller is provided on the
Starter Kit to serve as the programming interface to the MachXO3 FPGA.
Programming requires the Lattice Diamond or ispVM System software.

17
MachXO3 Starter Kit User Guide
Table 14. USB Interface Reference
Item Description
Reference Designators U1
Part Number FT2232HL
Manufacturer Future Technology Devices International (FTDI)
Web Site www.ftdichip.com
Board Modifications
This section describes modifications to the board to change or add functionality.
Bypassing the USB Programming Interface
The USB programming interface circuit (USB Programming and Debug Interface section) may be optionally
bypassed by removing the 0 Ohm resistors: R4, R5, R6, R7 (See Appendix A. Schematics, Sheet 2 of 8). Header
landing J1 provides JTAG signal access for jumper wires or a 1 x 8 pin header.
Applying External Power
The Starter Kit is powered by the circuit of Schematic Sheet 3 of 8 based on the 5 V USB power source. You may
disconnect this power source by removing the 0 Ohm resistors: R35 (VCC_1.2 V) and R42 (VCC_3.3 V). Power
connections are available from the test points, TP1 (+3.3 V) and TP2 (+1.2 V).
Measuring Bank and Core Power
Test points (TP1, TP2) provide access to power supplies of the MachXO3 FPGA. Inline 1 Ohm resistors: R31
(VCCIO0, +3.3 V, Bank 0), R25 (VCCIO1, +3.3 V, Bank 1), R37 (VCCIO2, +3.3 V, Bank 2), R32 (VCCIO3, +3.3 V,
Bank 3), R26 (VCCIO4, +3.3 V, Bank 4), R38 (VCCIO5, +3.3 V, Bank 5), R24 (VCC core, +1.2 V) can be used to mea-
sure current for the power supplies.
Mechanical Specifications
Dimensions: 3 in. [L] x 3 in. [W] x 1/2 in. [H]
Environmental Requirements
The evaluation board must be stored between –40° C and 100° C. The recommended operating temperature is
between 0° C and 90° C.
The board can be damaged without proper anti-static handling.
Glossary
FPGA: Field Programmable Gate Array
DIP: Dual in-line package
LED:Light Emitting Diode.
LUT: Look Up Table
PCB: Printed Circuit Board
RoHS: Restriction of Hazardous Substances Directive
USB: Universal Serial Bus
WDT:Watchdog Timer

18
MachXO3 Starter Kit User Guide
Troubleshooting
Use the tips in this section to diagnose problems with the Starter Kit.
LEDs Do Not Flash
If power is applied but the board does not flash according to the preprogrammed counter demonstration then it is
likely the board has been reprogrammed with a new design. Follow the directions in the Demonstration Design sec-
tion to restore the factory default.
USB Cable Not Detected
If Lattice Diamond Programmer or ispVM System does not recognize the USB cable after installing the Lattice USB
port drivers and rebooting, the incorrect USB driver may have been installed. This usually occurs if you attach the
board to your PC prior to installing the Lattice-supplied USB driver.
To access the Troubleshooting the USB Driver Installation Guide:
For Diamond software and standalone Diamond Programmer:
1. Start Diamond or Diamond Programmer and choose Help.
2. Search for USB driver or Troubleshooting, then select the Troubleshooting the USB Driver topic.
3. Follow the directions to install the Lattice USB driver.
For ispVM:
1. Start ispVM System and choose Options > Cable and I/O Port Setup.
The Cable and I/O Port Setup Dialog appears.
2. Click the Troubleshooting the USB Driver Installation Guide link.
The Troubleshooting the USB Driver Installation Guide document appears in your system’s PDF file reader.
3. Follow the directions to install the Lattice USB driver.
An alternate failure mode can occur when the user design assigns an output signal to the FPGA package pin C8
which is connected the oscillator (X1) output signal "12 MHz". This can occur unintentionally when the Placer ran-
domly assigns unconstrained outputs. In this case, the contention squelches the FTDI device (U1) clock input, ren-
dering it unable to communicate. To eliminate the contention, remove the resistor R23. This will restore the FTDI
device operation and allow the erasure of the offending FPGA image. Resistor R23 should be reinstalled if an
external clock source is desired.
Determine the Source of a Pre-Programmed Device
If the Starter Kit has been reprogrammed, the original demo design can be restored. To restore the board to the
factory default, see the Download Demo Designs section for details on downloading and reprogramming the
device.

19
MachXO3 Starter Kit User Guide
Ordering Information
Description Ordering Part Number
China RoHS Environment-Friendly
Use Period (EFUP)
MachXO3L Starter Kit LCMXO3L-6900C-S-EVN
MachXO3LF Starter Kit LCMXO3LF-6900C-S-EVN
Technical Support Assistance
Submit a technical support case via www.latticesemi.com/techsupport.
Revision History
Date Version Change Summary
March 2016 1.2 Updated Demonstration Design section. Indicated external Serial Flash
Memory (SPAN-SION S25FL204K or S25FL208K).
Updated Run the Demonstration Design section. Corrected the link to
the FTDI Chip USB Hardware Drivers in the procedure for loading the
FTDI chip USB hardware drivers via the stand-alone package on a Win-
dows system.
Updated Programming a Demo Design with the Lattice Diamond Pro-
grammer section. Modified Device in step 10 of the procedure for pro-
gramming MachXO3 device.
Updated Expansion Header Landings section. Revised Figure 7, J1
Header Landing and LED Array Callout to correct DIPSW ball callouts.
Updated Download Demo Designs section. Corrected links in the proce-
dure for downloading demo designs.
Updated Appendix B. Bill of Materials section. Modified item 40 Span-
sion MFG Pin in Ta bl e 15, MachXO3 Starter Kit Bill of Materials.
May 2015 1.1 Changed document title to MachXO3 Starter Kit User Guide
Changed instances of MachXO3L to MachXO3.
Indicated MachXO3L and/or MachXO3LF devices and board versions.
Indicated MachXO3 NVCM and/or Flash based devices.
Updated Technical Support Assistance section.
November 2014 1.0 Initial release.
© 2016 Lattice Semiconductor Corp. All Lattice trademarks, registered trademarks, patents, and disclaimers are as
listed at www.latticesemi.com/legal. All other brand or product names are trademarks or registered trademarks of
their respective holders. The specifications and information herein are subject to change without notice.

20
MachXO3 Starter Kit User Guide
Appendix A. Schematics
Figure 8. Block Diagram
5 5
4 4
3
3
2 2
1 1
D D
C C
B B
AA
USB CONNECTOR USB to
JTAG / RS232
Power from USB 5V 5-KNAB1-KNAB
BANK-4BANK-2
BANK-0
LCMXO3L/LF-6900C-5BG256C
JTAG_I/F
HEADER
HEADER
I/O'S
I2C
I/O'S
I/O'S
I/O'S
HEADER
I/O'S
I/O'S
BANK-3
HEADER
RS232_I/F
LEDS (1-8) SPI FLASH
HEADER
SPI
Date: Size Schematic Rev
ofSheet
Title
Lattice Semiconductor Applications
Email: [email protected]
Phone [phone] -or- (800) LATTICE
Board Rev
Project
12-SEP-14
B1.0
81
MACHXO3 Starter Kit - BLOCK DIAGRAM
MACHXO3 Starter Kit - LCMXO3-6900C A
Date: Size Schematic Rev
ofSheet
Title
Lattice Semiconductor Applications
Email: [email protected]
Phone [phone] -or- (800) LATTICE
Board Rev
Project
12-SEP-14
B1.0
81
MACHXO3 Starter Kit - BLOCK DIAGRAM
A
Date: Size Schematic Rev
ofSheet
Title
Lattice Semiconductor Applications
Email: [email protected]
Phone [phone] -or- (800) LATTICE
Board Rev
Project
12-SEP-14
B1.0
81
MACHXO3 Starter Kit - BLOCK DIAGRAM
A