Catapult C Synthesis User's And Reference Manual

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3. Mentor Graphics Extends Catapult C with Support for Control Logic to Enable Full-Chip High-Level Synthesis: Mentor Graphics Corp. (NASDAQ: MENT), the market and technology leader in high-level synthesis solutions, today announced that the Catapult® C Synthesis tool has been extended to support control logic and manage low power design requirements, thus enabling full-chip high-level synthesis.
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Catapult C Synthesis User's And Reference Manual Free

Catapult C Synthesis, a commercial electronic design automation product of Mentor Graphics, is a high-level synthesis tool, sometimes called algorithmic synthesis or ESL synthesis. Catapult C takes ANSI C/C++ and SystemC inputs^[1] and generates register transfer level (RTL) code targeted to FPGAs and ASICs.^[2]

History[edit]

In 2004, Mentor Graphics formally announced its Catapult C high level synthesis product offering hierarchical design support for synthesizing pipelined, multi-block subsystems from untimed ANSI C/C++ descriptions. Catapult C's main functionality was generating RTL (VHDL and Verilog) targeted to ASICs and FPGAs. Users specified constraints for timing and area, and provided a clock period and destination technology. Mentor also announced a Catapult C Library Builder for ASIC Designers to collect detailed characterization data.^[3]

In 2005, Mentor announced extensions to Catapult C to automatically create SystemC transaction-level models and wrappers, for simulation of the design in verification environments supporting SystemC. Mentor also introduced interface synthesis to map the data transfer implied by passing of C++ function arguments to hardware interfaces such as wires, registers, handshaked registers, memories, buses or more complex user-defined interfaces.^[4]

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In 2006, Mentor announced Catapult SL (System Level) for automatically creating signal processing subsystems. Catapult SL could coordinate the partitioning of sequential C operations into multiple blocks within the subsystem, including partitioning into multiple clock domains. Catapult SL automatically inserts appropriate inter-block channels and memory buffers to assemble the sub-system.^[5]

In January 2009, Mentor announced an integration between Catapult C and its Vista SystemC design and simulation environment to automatically generate transaction-level models (TLM). In this process, the untimed ANSI C++ input to Catapult is encapsulated in a TLM wrapper; timing information is extracted from the synthesis results and back-annotated in the resulting model. The flow is compatible with the TLM-2.0 standard from the Open SystemC Initiative (OSCI).^[6]

In June 2009, Mentor announced that it enhanced Catapult C with the ability to synthesize control logic, create power-optimized RTL netlists, with automatic multi-level clock gating, and an automated verification flow to enable a debug of the RTL against the original C++ input.^[7]

In January 2010, Mentor announced the ability for Catapult C to take direct SystemC input, including both cycle-based and transaction level (TLM) support.^[8]

In May 2011, Mentor announced that Catapult C supported TLM synthesis. Abstract TLM models are converted to pin-accurate, protocol-specific, SystemC models, and from there, synthesized to RTL code. Existing synthesizable descriptions can be converted to TLMs.^[9]

In August 2011, Catapult C was acquired by Calypto Design Systems.^[10]

In September 2015, Mentor Graphics acquired Calypto Design Systems^[11], thus reacquiring Catapult C.

Features[edit]

CatapultC synthesizes ANSI C/C++ without proprietary extensions. The C/C++ language support includes pointers, classes, templates, template specialization and operator overloading, which facilitate design reuse methodology over RTL code.^[12]

Catapult C supports both algorithmic and control logic synthesis.^[13]

Designers do iterations with CatC to pick their preferred micro architecture for specified performance and area constraints.^[14] Catapult has a graphic user interface with a visual view of the hardware circuit it is scheduling, as well as the clock reference between the C code and the Verilog RTL code. Catapult C has 3 types of simulation using the original C/C++ testbench: Cycle-based, RTL-based, and Gate-Level based.^[15]

Catapult C supports SystemC model generation intended for virtual platforms, and a SystemC test environment to verify the generated RTL against the original C++ using the original C++ testbench.

Catapult C supports the synthesis of Transaction Level Models (TLM), including standard off-the-shelf bus interfaces and custom protocols.^[16]

Competing HLS Products[edit]

• Vivado HLS from Xilinx (formerly, AutoPilot from AutoESL)
• Intel HLS from Intel (formerly a++ from Altera)
• BlueSpec Compiler from BlueSpec
• Impulse C CoDeveloper from Impulse Accelerated Technologies
• C-to-Silicon from Cadence Design Systems
• Synphony C Compiler from Synopsys
• Cynthesizer from Forte Design Systems
• LegUp from University of Toronto
• CyberWorkBench from NEC [1]
• C-to-Verilog from C-to-Verilog.com
• eXCite from Y Explorations
• ParC C++ extended for parallel processing and hardware description
• HDL Coder from MathWorks

References[edit]

1. ^Chip Design Bridging ESL and High-Level Synthesis
2. ^University of Oulu Rapid Scheduling of Efficient VLSI Architectures for Next-Generation HSDPA Wireless System Using C Synthesis
3. ^EETimes: High-level synthesis rollouts enable ESL^{[permanent dead link]}
4. ^SOCCentral Mentor Graphics Extends Catapult C Synthesis ProductArchived 2006-02-05 at the Wayback Machine
5. ^SOCCentral Mentor Introduces High-Level Synthesis to Create High-Performance Subsystems from Pure ANSI C++Archived 2012-09-13 at Archive.today.
6. ^EETimes Mentor TLM 2.0 design flow
7. ^SCDsource Mentor Catapult C synthesizes control and power managementArchived 2011-10-09 at the Wayback Machine
8. ^Chip Design Bridging ESL and High-Level Synthesis
9. ^EETimes Mentor’s TLM Synthesis links virtual prototyping and hardware implementation
10. ^EETimes Calypto acquires Mentor's Catapult C
11. ^PR Newswire Mentor Graphics Acquires Calypto Design Systems
12. ^University of Oulu Rapid Scheduling of Efficient VLSI Architectures for Next-Generation HSDPA Wireless System Using C Synthesis
13. ^SCDsource Mentor Catapult C synthesizes control and power managementArchived 2011-10-09 at the Wayback Machine
14. ^ICASSP Architectural Design and Implementation of the Increasing Radius – List Sphere Detector Algorithm
15. ^Deepchip C/C++ chip design using high-level synthesis
16. ^EETimes Mentor’s TLM Synthesis links virtual prototyping and hardware implementation

Catapult C Synthesis User's And Reference Manual Online

External links[edit]

Catapult C Synthesis User's And Reference Manual Template