29. September 2011 by admin.

Get it now at http://www.microchip.com/stellent/idcplg?IdcService=SS_GET_PAGE&nodeId=2680&dDocName=en023592

The Noise Suppression Library is written almost entirely in assembly language. It is highly optimized to make extensive use of the dsPIC DSC device DSP instruction set and advanced addressing modes. The algorithm has been implemented keeping in mind the need to avoid data overflow. The library functions can be easily called by the user application through a well-documented Application Programmer’s Interface.

The noise suppression function removes noise from a 10 ms block of 16-bit speech data sampled at 8 kHz. This function is primarily a Frequency Domain algorithm in which a Fast Fourier Transform (FFT) is performed on each 10 ms block of data to analyze the frequency components of the signal. Thereafter, a Voice Activity Detection (VAD) algorithm is used to determine if the signal segment is speech or noise. The noise suppression algorithm maintains a profile of the noise and updates it every time a noise segment is detected by the VAD. Every frequency band of the input signal is then scaled according to the proportion of noise contained in that frequency band, thereby causing a significant degree of noise suppression in the resultant signal. The Algorithm thus adapts to changes in the nature and level of noise and does not require a separate noise reference input.

Features

Key feature of the Noise Suppression Library include:

• Simple user interface – only one library file and one header file

• All functions called from a C application program

• Full compliance with the Microchip C30 Compiler, Assembler and Linker

• Highly optimized assembly code that uses DSP instructions and advanced addressing modes

• Comprehensive API provides parametric control of the Noise Suppression Engine

• Noise reduction level can be controlled from 0 dB to 44 dB

• Audio Bandwidth: 0-4 kHz at 8 kHz sampling rate

• Library delivered on CD, which also includes:

o Several sample .wav files that incorporate different types of noise components

o User’s Guide

o Sample demo application with complete source code

Resource Requirements

Computational Requirements: 3.5 MIPS
Program Flash Memory: 8 KB
RAM: 1 KB

This library is available for free download and there are no associated royalties for this library

Posted in Software, Assembly, Software Stack, 16-bit, dsPIC | Print | 1 Comment »

12. May 2011 by admin.

Check out the archives of the live training from the Embedded Systems Conference in Santa Jose May 3-5.

http://www.microchip.com/en_us/events/ESCSV2011/live.html

• Designing for Smart Energy and Low Power Applications
• Connectivity Solutions featuring USB and Ethernet
• Touch Sense and Graphics Solutions

• Wireless Solutions for Embedded Design
• Development Tools Featuring MPLAB® X IDE
• Smart Energy Monitoring Metering and Control

Posted in Wireless, WiFi, Ethernet, MPASM, Seminars & Confrences, Digital Power, Smart Energy, Embedded Systems Design, Tips & Tricks, Product Review, Programmer, Touch Sensing, 16-bit, dsPIC, Motor Control, 32-bit, PIC, ZigBee, Training & Education, USB, 8-bit, Microchip | Print | 1 Comment »

4. April 2011 by admin.

Here is the support page: http://www.microchip.com/stellent/idcplg?IdcService=SS_GET_PAGE&nodeId=1406&dDocName=en546569

This page is intended to provide collateral support to existing content with introductory materials on such topics as installation and using the dsPIC® Digital Signal Controller Blocksets.

Posted in SIMULINK, MATLAB, Blocksets, 16-bit, dsPIC | Print | 1 Comment »

5. March 2011 by admin.

Thanks to Joe L for sumitting this one.

To win a FREE Microstick, simply complete and submit this form!

This is an exclusive invitation for attendees of Microchip’s Embedded Designers Forum, MASTERs Conference and regional training classes in Asia Pacific from December 2010 to June 2011. Winners will be personally presented with the Microstick by our sales representatives in their workplace. Don’t miss this opportunity to learn more about Microchip’s products and solutions and to ease your 16-bit development.

More details on the tool at http://www.microchip.com/stellent/idcplg?IdcService=SS_GET_PAGE&nodeId=1406&dDocName=en548414:

The Microstick for dsPIC33F and PIC24H devices is designed to provide designers with an easy to use, economical development environment for 16-bit Digital Signal Controllers and Microcontrollers.

Microstick provides all you need to get started at a very low cost. It has an integrated programmer / debugger. It can be used stand-alone or plugged into a prototyping board for extremely flexible development. The device under test is socketed for easy change-out, and Microchip’s MPLAB Integrated Development Environment supports Microstick. It has never been more affordable to get started with Microchip 16-bit devices!

Posted in Programmer, Prototyping, Debugger, MASTERs Conference, Training & Education, PIC, Sweepstakes, dsPIC, 16-bit, Microchip | Print | 1 Comment »

19. December 2010 by admin.

Last chance to win a dsPICDEM^TM MCSM Stepper Motor Development Board Kit part #DV330021 includes motor and power supply $270 value! http://www.microchip.com/stellent/idcplg?IdcService=SS_GET_PAGE&nodeId=2629&param=en549353

Posted in Design News, 16-bit, dsPIC, Motor Control, Sweepstakes | Print | 2 Comments »

9. March 2010 by admin.

From: http://www.kanda.com/products/QuantumBase/QB-ICD2.html

PIC-ICD2 Plus debugger and programmer is directly compatible with Microchip’s original MPBA-ICD2 and with it you can do everything you can do with the original MPLAB-ICD2, including PIC Programming. PIC-ICD2 is a low cost, real-time debugger and programmer for all PIC16F, PIC18F and dsPIC DSCs.
Programs can be downloaded and executed in real time and examined in detail with the debug functions of MPLAB. Watches can be set on variables and breakpoints can be set from symbolic labels in C or assembly source code, to allow single steppping through C source lines or into assembly code. 

PIC-ICD2 can also be used as a development programmer for supported PIC MCUs. 

The secret behind In Circuit Debugging is two dedicated hardware lines (microcontroller pins used only during debugging mode) that control In Circuit Serial Programming (ICSP) of the device and, afterwards, debugging through proprietary, on-chip firmware. 

The ICD 2 debug features are built into the microcontroller and activated by programming the debug code into the target processor. There is some shared overhead expense that includes one stack level, some general purpose file registers and a small area of program memory.

Posted in ICD, Kanda Systems Ltd., 8-bit, PIC, 16-bit, dsPIC | Print | 4 Comments »

23. February 2010 by admin.

From Avent’s Power Design Solutions Guide.

Increase efficiency and lower cost using digital power conversion from Microchip. Together with Avnet Memec, Microchip is offering qualified registrants a dsPIC Digital Power Conversion Design Kit. Offer ends May 3, 2010.

 dsPIC DIGITAL POWER CONVERSION DESIGN KIT OFFER 
Together with Avnet Memec, Microchip is offering qualified registrants a dsPIC Digital Power Conversion Design Kit. This kit include a Buck/Boost Converter PICtail™ Plus Daughter Board (AC164133), 16-bit 28-pin Starter Board (DM300027), PICkit™ 3 Debug Express (DV164131) and samples of the dsPIC33FJ16GS502-I/SP. Click the Register link at the bottom of this page to qualify for a kit.

More About Digital Power Conversion
Traditional power conversion products, such as light ballasts, inverters and AC-DC/DC-DC power supplies have employed an analog control loop for basic control of the PWM module, integrated circuits (ICs) and power devices. In these types of power products, additional digital control and communication performed by a microcontroller has been layered on top. In digital power conversion, however, the analog control loop is replaced with a digital control loop, and the PWM module is typically integrated into the same microcontroller that is performing the high-level control and communication.

By using digital loop control to implement power conversion, developers can realize many benefits. These benefits are enabled by the ability to perform power-conversion control via reprogrammable software, as well as the performance and features offered by a digital solution.

Designers using new, flexible DSCs for digital power conversion are experiencing newfound abilities to innovate. For more information on Digital Power Conversion Solutions from Microchip, visit www.microchip.com/SMPS.

Posted in Avnet, Digital Power, 16-bit, dsPIC, Development Tool | Print | 3 Comments »

20. February 2010 by admin.

From: http://www.mikroe.com/en/books/dspicbook/mikropascal/

Learn how to write your own program, debug it, and use it to start the microcontroller. We have provided plenty of practical examples with necessary connection schematics: temperature sensors, AD and DA converters, LCD and LED displays, relays, communications, and the book is constantly being updated with fresh examples. All code is commented in details to make it easier for beginners. Instruction set, operators, control structures, and other elements of PASCAL are thoroughly explained with many examples. Also, the book includes a useful appendix on mikroPascal for dsPIC development environment: how to install it and how to use it to its full potential.

Authors: Zoran Milivojević, Djordje Šaponjić

Posted in Pascal, MikroElektronika, DSP, 16-bit, dsPIC, Books | Print | 1 Comment »

4. January 2010 by admin.

From: http://www.element-14.com/community/docs/DOC-19095 

The Explorer 16 is a low cost, efficient development board to evaluate the features and performance of Microchip’s new PIC24 Microcontroller, the dsPIC33 Digital Signal Controller (DSC) families, and the new 32-bit PIC32MX devices. Coupled with the MPLAB ICD 2 In Circuit Debugger or MPLAB REAL ICE, real-time emulation and debug facilities speed evaluation and prototyping of application circuitry.

The Explorer 16 44-pin (DM240002) features a Plug-In Module (PIM) for the PIC24FJ64GA004.

Posted in Newark, PIC, 16-bit, dsPIC, Development Tool | Print | 1 Comment »

21. May 2009 by admin.

Piklab is an integrated development environment for applications based on PIC and dsPIC microcontrollers. The GNU PIC Utilities, SDCC, PICC, PIC30 toolchain, ICD2 debugger, PICkit1, PICkit2, PicStart+, GPSim and most direct programmers are supported.

Posted in C Programming, Debugger, SourceForge, GNU General Public License (GPL), 8-bit, PIC, Development Tool, dsPIC, 16-bit, MPLAB | Print | 1 Comment »