Waveshare ALTERA MAX II EPM1270 CPLD OpenEPM1270 Development Board Package A

Artikelnummer: WS0513A

HAN: OpenEPM1270 Package A


66,63 €

inkl. 19% USt.,

knapper Lagerbestand

Lieferzeit: 1 bis 3 Tage



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

EPM1270 development board


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

 EPM1270 development board on board resource
  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

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

  1. 1-WIRE interface: for connecting 1-WIRE devices (TO-92 package), such as temperature sensor (DS18B20), electronic registration number (DS2401), etc.
  2. Character LCD interface: for connecting character LCD, such as the LCD1602 (5V Blue Backlight) in Package B
  3. 5V DC jack
  4. JTAG interface: for programming/debugging
  5. MCU pins connector: all the MCU pins are accessible on expansion connectors for further expansion
  6. LEDs jumper
  7. Buzzer jumper

For jumper 18-19:

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

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


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

 10-pin JTAG header pinout

Development Resources

The User Guide CD includes development resources listed as follow:

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

Package Contains

The "Standard Package" and "Accessory Boards Package" below are included.

Standard Package

  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

Accessory Boards Package

  1. USB type A to Mini-B cable x 1
  2. PL2303 USB UART Board (mini) x 1
  3. LCD1602 (5V Blue Backlight) x 1
  4. AT24CXX EEPROM Board x 1
  5. DS18B20 x 1
  6. VGA PS2 Board x 1
  7. CY7C68013A USB Board (mini) x 1

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