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CPLD Development Board

  • $64.71
  • Ex Tax: $64.71
  • Product Code: 5634
  • Availability: In Stock
CPLD development board designed for ALTERA MAX II series, features the EPM1270 onboard, and integrates various standard interfaces, pretty easy for peripheral expansions.

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

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


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.

PeripheralDescriptionInterfaceVerilogVHDL
AT24CXXEEPROMI2CYY
FM24CXXFRAMI2CYY
DS18B20Temperature sensor1-WIREYY
SP3232Serial communicationUARTYY
SP3485Serial communicationUARTYY
PL2303USB TO UARTUARTYY
CY7C68013AUSB DEVICEUSB Y
BuzzerSound device1I/O(PWM)YY
PS/2 keyboardInput devicePS/2YY
Single buttonsInput device----YY
4x4 keypadInput device8I/OsYY
JoystickInput device5I/OsYY
LEDDisplay device----YY
8 SEG LEDDisplay device13I/OsYY
VGA monitorDisplay deviceVGAYY
Character LCDDisplay device11I/OsYY

Debugging/Programming Interfaces

The OpenEPM1270 integrates JTAG interface for programming/debugging.

JTAG Signal Names & Description

PinSignal NameDescription
1TCKClock signal
2GNDSignal ground
3TDOData from device
4VCC(TRGT)Target power supply
5TMSJTAG state machine control
6NCNo connect
7NCNo connect
8NCNo connect
9TDIData to device
10GNDSignal ground

JTAG Header Pinout


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

www.waveshare.com/wiki/OpenEPM1270

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