6691 – OpenEP4CE6-C/en

Documentation notice: This technical documentation was independently rewritten from an archived supplier source. Check technical details and commands against the product version and manufacturer documentation before use.

Summary

Concise technical guide to the Waveshare OpenEP4CE6-C: an FPGA board featuring an onboard ALTERA Cyclone IV EP4CE6 chip, multiple standard interfaces, and resources such as schematics, demo code, and datasheets.

Related products at JW Tech

• 6691 – OpenEP4CE6-C Package B, ALTERA Development Board
• 6715 – OpenEP4CE6-C Package A, ALTERA Development Board
• 6724 – OpenEP4CE6-C Standard, ALTERA Development Board
• WSAL6691 – OpenEP4CE6-C Package B, ALTERA Development Board
• WSAL6715 – OpenEP4CE6-C Package A, ALTERA Development Board
• WSAL6724 – OpenEP4CE6-C Standard, ALTERA Development Board

Technical overview

• The board is based on the ALTERA Cyclone IV EP4CE6 FPGA.
• It provides various standard I/O interfaces for peripheral expansion.
• Available resources include schematics (CoreEP4CE6 | DVK601), demo code in Verilog, VHDL and NIOS, a user manual, pin configuration, software, and datasheets.
• The product line includes three variants: Package A (bare PCB), Package B (complete board), and the Standard variant.
• The FAQ recommends using Quartus version 11; older versions such as V9 may produce errors.
• To generate a POF file: go to Assignments > Device > Device and Pin Options, select the configuration device, and choose the Active Serial configuration scheme.
• When assigning pins, the message "can't place multiple pins assigned to pin location Pin_101" can appear; the source points to an external forum thread for resolution.

Notes and version constraints

• The exact list of available interfaces (I2C, SPI, USART, PS/2, etc.) is only given as keyword tags in the source; concrete pinout requires the datasheet.
• Quartus version-specific steps may differ by installed version; verify which Quartus version is in use before proceeding.
• The reference to an external forum thread for resolving the pin-placement error is not an official Waveshare instruction; human confirmation recommended.
• The source does not provide power supply values, warranty, or safety information.

Source and revision record

• OpenEP4CE6-C - Waveshare Wiki
• Source revision: 106114
• Captured: 2026-08-29T09:01:23+00:00
• SHA-256: b4752d63faa415dae12a04f139dff3dddbc21420d98016c94e4790e62b36d53f