Specifications
2 Software Version 7.1 SP1 Altera Corporation
DSP Builder Release Notes
DSP Builder Release Notes
New Features &
Enhancements
The following list outlines new features and enhancements in version 7.1:
■ DSP Builder can now only be installed within a matching version of
the Quartus II software.
■ The DSP Builder blockset has been completely re-written to provide
individual controls for optional ports and many new options. New
blocks include:
● Single-Port RAM block
● True Dual-Port RAM block
● Bus Splitter block
● Clock and Clock_Derived blocks (replaces the ClockAltr block)
● New Signal Compiler and TestBench blocks
● Stratix III DSP block (supports fine-grain control of multiply add
and multiply accumulate operations for Stratix III devices)
■ The single-port Avalon-MM blocks have been obsoleted in favour of
the multi-port Avalon master and slave blocks.
■ The Multi Channel Display, Multi Channel Extract and Nios Custom
Instruction blocks have been obsoleted.
■ The optional enable port on the Sum of Products block is now
consistent with the other blocks and enables (or disables) the entire
pipeline.
■ Inferred datatype selection for propagation.
■ New fast functional simulation support for Video and Image
Processing Suite MegaCore functions.
■ New HDL generation flow.
■ New testbench generation and execution interface (replacing tbdiff).
■ Enhanced support for multiple clock domains
■ Asynchronous clear ports are now implicitly wired.
Errata Fixed in
This Release
The following errata are fixed in version 7.1 SP1:
■ VCD Sink block was restricted to 10 inputs
■ Testbench did not detect absence of ModelSim
■ Simulation failed for custom library blocks
■ SOPC Builder files were not added to the Quartus II project
■ Could not upgrade the Subsystem Builder block
■ Problem with VHDL generated for one-bit wide signed gain block
The following errata were fixed in version 7.1:
■ Clock information was incorrect in VEC file for multiclock designs
■ Signed fractional HIL simulation was incorrect
■ VHDL for black boxes was not included in the generated scripts
f For existing up-to-date errata, refer to the DSP Builder, v7.1 Errata Sheet
on the Errata Sheets page of the Altera literature website.