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Your EDA Tools... Automated

CE-HDL

Allegro HDL Schematic Entry…. Automated

Connect hundreds of pins with a few mouse clicks

CE-HDL is a suite of tools that plug into Cadence® Allegro® Design Entry HDL to magically add wires, parts and signal names, create and edit Hierarchical Blocks, and tidy up the schematic.

 
 

See the magic CE-HDL adds to Cadence Allegro HDL

 

Add Wires, Parts, and Signal Names Like Magic

Add Wires
CE-HDL adds named wires between device pins and hierarchical ports, off-pages or selectable library components. The wire name is created from the symbol pinName and can be altered using powerful rename rules. A prefix or suffix can also be added.

Insert Parts
Insert series components into existing wires endpoints.

Copy Props
Copy wire names across the wires using rename rules and a prefix or suffix.

 

Click Here to View a Tutorial on Adding Wires with CE-HDL

 

How Do you connect your FPGAs?

Without CE-HDL:

  • Open pin report in text editor or Excel

  • Connect FPGA pin

    • Find SIG_NAME for pin in pin report

    • Manually add wire

    • Manually type then locate SIG_NAME

    • Add proper off-page/port at end of wire

  • Repeat previous step for every FPGA pin

  • Go back and verify the SIG_NAME for every FPGA pin

With CE-HDL:

  • Assign FPGA pin report file to one of the FPGA symbols

  • Edit power rail config for part (if you want power connections)

  • Select wire termination (off-page, IO-port)

  • Run the “add wires” operation for each group of pins you want to connect

  • Get some coffee

 

Click Here to View a Tutorial on Connecting FPGAs using CE-HDL

 

What about Power Pins?

CE-HDL lets you define the power connections for a device by editing a simple table that gets created and stored for each part in the design. When you add wires to the power pins, it creates a bussed connection with only one off-page or port per unique net, making it very easy to work with and change the design, if needed.

 

Click Here for Information on Power Pins

 

Connect A DDR4 DIMM in five Minutes

Putting it all together, CE-HDL can wire this DDR4 DIMM connector using rename rules to shorten pin names and skip unused pins, and interleave the power and ground connections without the inadvertent shorts which are so easy to create when connecting manually.

And, by the way, PartBuilder easily created this DIMM symbol from the vendor data sheet in <25 minutes.

 

Click Here for a Tutorial on Connecting a DDR4 DIMM with CE-HDL

 

Bottoms-Up Hierarchy with CE-HDL and PartBuilder

CE-HDL integrates with PartBuilder to effortlessly create Allegro-HDL hierarchical designs working from the bottom level, up. Signal names are created from Pin Names and Hierarchical port names are created from Signal names.

  1. Add placeholder hierarchical block (HBLOCK)

  2. Edit HBLOCK schematic

    1. Add symbols

    2. Make connections to hierarchical ports with CE-HDL

  3. Create HBLOCK symbol with PartBuilder

  4. Refresh HBLOCK at top Level

  5. Connect HBLOCK symbols with CE-HDL

 

Click Here to See How CE-HDL works with PartBuilder

 

CE-HDL Resources