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Item specifics
  • is_customized: yes
  • Model Number: OpenEPM1270 Standard
  • Demo Board Type: Others
  • Category: ALTERA CPLD Development Board
  • For use with: EPM1270 Development & Evaluation
  • Onboard MCU: EPM1270 (ALTERA MAXII)
  • Feature: Open & Modular design, features various communication interfaces
Product Description

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CPLD development board designed for ALTERA MAX II series, features the EPM1270 onboard, and integrates various standard interfaces, pretty easy for peripheral expansions.


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: 144
* 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

For interface 9-12: it\\\\\\\'s possible to emulate the interfaces as ONE-WIRE, USART, I2C, SPI, PS/2, etc.

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

For jumper 18-19:

* short the jumper to connect to I/Os that used in example code
* open the jumper to connect to other custom pins via jumper wires


(Easy expansion, you can add accessory boards as you like!!)


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

2. Accessory boards in the photo are NOT included in the OpenEPM1270 Standard Package.


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

Peripheral Description Interface Verilog VHDL
DS18B20 Temperature sensor 1-WIRE Y Y
SP3232 Serial communication UART Y Y
SP3485 Serial communication UART Y Y
Buzzer Sound device 1I/O(PWM) Y Y
PS/2 keyboard Input device PS/2 Y Y
Single buttons Input device ---- Y Y
4x4 keypad Input device 8I/Os Y Y
Joystick Input device 5I/Os Y Y
LED Display device ---- Y Y
8 SEG LED Display device 13I/Os Y Y
VGA monitor Display device VGA Y Y
Character LCD Display device 11I/Os Y Y

Debugging/Programming Interfaces

The OpenEPM1270 integrates JTAG interface for programming/debugging.

JTAG Signal Names & Description

Pin Signal Name Description
1 TCK Clock signal
2 GND Signal ground
3 TDO Data from device
4 VCC(TRGT) Target power supply
5 TMS JTAG state machine control
6 NC No connect
7 NC No connect
8 NC No connect
9 TDI Data to device
10 GND Signal ground

JTAG Header Pinout

Development Resources

The User Guide CD includes development resources listed as follow:
1. Related Software (Quaters II etc.);

2. Demo Code (Verilog and VHDL);

3. Schematic (PDF);

4. CPLD Development Documentations (Datasheets etc.);

Package Contains

1. OpenEPM1270 development board x 1
2. 4-pin wire x 2
3. 2-pin wire x 2
4. USB power cable x 1
5. User Guide CD x 1

Terms & Conditions

1. Payment:
* We accept Escrow as the payment method. Currently, you can pay by Visa, MasterCard and bank transfer. For more information about making payment, please go to \\\\\\\'Escrow FAQ\\\\\\\' to get more details.

2. Shipping:
* We ship items to Worldwide!
* Please make sure that your shipping address is 100% correct.
* All items will be shipped within 48 working hours on receipt of cleared payment.
* We\\\\\\\'ll add a tracking number after sending the item so that you can track your parcel.

3. Returns Policy:
* We are happy to return any unused item in its original packaging within 14 days of delivery.
* Buyers are responsible for the round(two-way) shipping cost.

4. Feedback:
* We\\\\\\\'ll leave POSITIVE FEEDBACK on receipt of cleared payment.
* If you\\\\\\\'re satisfied with the item and our service, please leave POSITIVE FEEDBACK, it\\\\\\\'s important to us.
* Once any problems occured, please contact us first. We\\\\\\\'ll try our best to work things out.

Please feel free to contact us for any questions, on trademanager, or send message to me. If you need to adjust the total price, pls contact us in advance. It\\\\\\\'s our pleasure to serve you! We appreciate your business!!

Packaging Details
  • Unit Type: piece
  • Package Weight: 0.25kg (0.55lb.)
  • Package Size: 20cm x 18cm x 10cm (7.87in x 7.09in x 3.94in)
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Packaging Details
  • Unit Type: piece
  • Package Weight: 0.25kg (0.55lb.)
  • Package Size: 20cm x 18cm x 10cm (7.87in x 7.09in x 3.94in)
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