Overview

OpenEPM1270 is a CPLD development board that features the EPM1270 device onboard. It supports further expansion with various optional accessory boards for specific application. The modular and open design makes it the ideal for starting application development with ALTERA MAX II series CPLD devices.

What's On Board

1. EPM1270:onboard CPLD device which features:
   • Operating Frequency: 50MHz
   • Operating Voltage: 1.5-3.3V
   • Package: QFP144
   • I/Os:116
   • LEs: 1,270, the equivalent to 4,000 logic gates
   • Debugging/Programming: JTAG
2. AMS1117-3.3: 3.3V voltage regulator
3. Power switch
4. Power indicator
5. LEDs: convenient for indicating I/O status and/or program running state
6. Joystick: five positions
7. Reset button
8. Buzzer
9. 8 I/Os interface: for connecting accessory boards
10. 16 I/Os interface: for connecting accessory boards
11. 8 I/Os interface: for connecting accessory boards
12. 32 I/Os interface: for connecting accessory boards

13. 1-WIRE interface: for connecting 1-WIRE devices (TO-92 package), such as temperature sensor (DS18B20), electronic registration number (DS2401), etc.
14. Character LCD interface: for connecting character LCD, such as the LCD1602 (5V Blue Backlight) in Package B
15. 5V DC jack
16. JTAG interface: for programming/debugging
17. MCU pins connector: all the MCU pins are accessible on expansion connectors for further expansion
18. LEDs jumper
19. Buzzer jumper

Photos

OpenEPM1270 Development Board

Connecting to LCD1602

Connecting to USB Blaster

Connecting to various peripherals

Connecting to USB UART Board via UART

Connecting to 8 SEG LED Board via 16I/Os

8 Push Buttons on the 8 I/Os interface

Connecting to 5 IO Keypad

4x4 Keypad on the 8 I/Os interface

Connecting to EEPROM Board via I2C

Connecting to VGA PS2 Board

Connecting to any accessory board you need

Note: The OpenEPM1270 does NOT integrate any programming/debugging function, a programmer/debugger is required.

Examples

OpenEPM1270 comes with various examples codes for the supported peripherals, which give you a quick start to develop your own application.

Debugging/Programming Interfaces

The OpenEPM1270 integrates JTAG interface for programming/debugging.

JTAG Signal Names & Description

JTAG Header Pinout

Development Resources

• Related Software (Quaters II etc.)
• Demo Code (Verilog and VHDL)
• Schematic (PDF)
• CPLD Development Documentations (Datasheets etc.)

Wiki: www.waveshare.com/wiki/OpenEPM1270