Rupam Das - Profile

Summary
Over 12 years experience in:
- Microprocessor-based and DSP-based Embedded Product development and System software development in
Telecom, Datacom, Networking, Wireless and Broadband domains
- Innovation, conceptualization, design, development, delivery and maintenance of several commercially successful
Telecom and Networking products
- Training and mentoring co-workers for skills, knowledge and technology learning

Current work profile
At present working as a freelance consultant and trainer for Embedded Software Technologies domain. Primary focus is on Embedded Linux and related topics. I undertake both training and consulting assignments in Embedded Software Technologies. For consulting assignments, see Consulting . For trainings, see Student Training and Corporate Training.

More about my profile at my LinkedIn profile

Expertise
My primary expertise is in Embedded Product Visualization, Rapid Prototyping, Design and Development of Wired and Wireless Networking and Telecom products.

Linux and Embedded Linux based training and development - Boot loader, Kernel customization, Root File System development, Device Driver porting and development, Embedded System & Peripheral Integration using Software, Shell scripts, Embedded Web Server using HTML/JavaScript/CGI

Datacom/Telecom, Wireless and Broadband Networking protocols - V.90 Modem, Wi-Fi (802.11 a/b/g), Ethernet, PPP, PPPoE, Proprietary protocols

System software, application software and firmware design and development for Microprocessor and Microcontroller based hardwares

Design and development of PC-Embedded Hardware Interfacing and Diagnostic tool and software (Serial, Parallel, Ethernet interfaces)

Network Architecture design and implementation for Wired, Wired and hybrid networks for home, SOHO and Enterprise customers.

Microcontroller based design and development of Embedded Products (Microchip PIC16F series and NXP 89v51 microcontrollers)

Technical Knowledge

Hardware	Atheros SoCs based on MIPS32 core Intel IXP425 SoC based on ARM core AMD Geode processor based on Intel x86 core Analog Devices ADSP 218x processors Analog Devices ADSP Blackfin 533/537 processors Infineon INCA-IPs processor PSB21543 Microchip 16F8XX family 8-bit microcontrollers NXP-Phillips P89V51 8-bit microcontrollers
Operating systems	Linux (RedHat, Fedora, CentOS) RT Kernel for ADSP 21xx and ADI Blackfin processors
Embedded Linux	uClinux Kernel developmenet and customization Packages: BusyBox, uDhcpd, Thttpd, LinPhone Device Drivers: Audio (ADI-AD1885, ADI-AD1836), Video (ADI-ADV7393, ADI-ADV7171), I2C, SPORT, RS232, Ethernet, Parallel port, Flash Bootloaders - RedBoot, U-Boot
Languages	C , ADSP Assembly for ADSP 21xx processors, Linux Shell Scripts, Perl CGI/HTML/JavaScript/Shell scripts for Web server development
Standards	IEEE 802.11 a/b/g (Wi-Fi) IEEE 802.3/Ethernet ETSI DECT for Fixed Wireless Access
Protocols	PPP / Hayes AT Modem Protocol PPPoE RS232
Software Tools	ADSP VisualDSP IDE for ADSP 218x processors VisualDSP++ IDE for ADSP Blackfin 53x processors Gnu Make Debuggers - Gdb, DDD Kompozer Web Designer
Packages	Windows - Microsoft Office suite, Source Insight, Dev C++, WinMerge Linux - Source Navigator, DDD debugger, gdb, kgdb, gnuPlot
Technologies	Wi-Fi/802.11 abg based Access Points and MESH nodes Fixed Wireless Access using ETSI DECT standards Cable/Wireless Access using ETSI DECT standards and DOCSIS