DSPgate™ Development Kit Version 1.3
by AB Nyvalla DSP

Software Overview

Nyvalla DSP's DSPgate is an application programmers' interface (API) for DSP applications under 
Microsoft Windows. The DSPgate Development Kit includes three components to build the applications. 
The PC side of DSPgate is a dynamic-link library for sharing the DSP board between different 
applications, board initialization, DSP program file download, messaging, and block data transfers. 
The DSP side contains a static DSP library providing an API for communication with PC host program 
and hardware, such as A/D and D/A converters. The third component of the DSPgate Development Kit is 
DSPy™, a message-level debugger.

Features and Benefits

•	Bi-directional message-level DSP interface
•	Fully integrated with the Microsoft Windows message model, arbitrates DSP resources between host 
applications
•	Supports multiple polymorphic message handlers on the DSP
•	Reduces debugging to a minimum
•	Hides hardware specifics from applications on both the DSP and the host computer

Processor and System Requirements

•	PC with Windows 3.1 or `95
•	DSP board with DSPgate support (currently TMS320C3x)
•	Algorithm category: Run-Time Support Library

Usage Limitations or Performance Considerations

•	Required:
Program memory: `C3x: 1.2 kwords
Data memory, `C3x: 0.2 kwords
Processor loading: Not applicable
•	Sampling rate: 4–48 kHz (recommended)
•	Language supported: TMS320C30 Optimizing C

Algorithm Verification

•	Not applicable.

Availability

•	AB Nyvalla DSP's DSPgate Development Kit version 1.3 is available now.
•	DSPgate drivers available (Oct `95): Loughborough Sound Images `C30 and PC/C31; Dalanco Spry 310B

Company Background and Contact Information

AB Nyvalla DSP was founded by Lennart Neovius and Sten Ternström to market and develop their 
interactive DSP solution, a spin-off from their research at KTH, Dept. of Speech Communications and 
Music Acoustics in Stockholm.
The founders of AB Nyvalla DSP have over 30 staff years of experience of voice- and music-signal 
processing, DSP hardware and software development for research, telecommunications, and handicap 
applications in both commercial and academic settings.
Contact:	Lennart Neovius 
		AB Nyvalla DSP
		Roslagsvägen 101, Bldg. 15
		104 05  Stockholm
		Sweden
		+468 790 9760
		Fax: +468 159 717
		e-mail: info@nyvalla-dsp.se