Know-how

Since the year 2000 d.stream has been working in various software projects in the field of digital signal processing in Embedded Systems. These projects are guided from the initial idea until the final production release which ensures that you as a costumer are working together with a competent partner.

PROGRAMMING LANGUAGES:

SOFTWARE

Code Composer Studio IDE from Texas Instruments
Real time operating system TI-RTOS, SYS/BIOS and DSP/BIOS from Texas Instruments
Communications system RTDX from Texas Instruments
Algorithm standard XDAIS from Texas Instruments
VisualDSP++ development environment from Analog Devices
Code Warrior development environment for ARM from Metrowerks
Matlab
Microsoft Visual Studio
Versioning systems Git, CVS and SVN
Doxygen
Open Source: openCV, libAV, jQuery
TCP/IP-Stack of Windmill Innovations and d.SignT
Windows, Linux, embedded Linux
Robot Operating System (ROS)
Legato for IoT

HARDWARE

DSPs from Texas Instruments C66x, C64x+, C64xx, DM642, C62xx, C67xx, C672x, C54xx, C55xx (C and Assembler)
SoC from Texas Instruments TDA2, TDA3, TDA4, AM571x, DaVinci DM8148
Image Signal Processor (ISP) from Texas Instruments included in TDA3 and TDA2p SoC
Sierra Wireless AirPrime WP76xx - wireless module for IoT (embedded Linux)
Blackfin BF533 DSP from Analog Devices (C and Assembler)
ARM9 Processor (C and Assembler)
ATmega Microcontroller from Atmel (done in C with AVR-Studio)
MSP430 from Texas Instruments (done in C)
68HC11 Microcontroller from Motorola (done in Assembler)
8051 Microcontroller (C and Assembler)
Zoran ZR38600 DSP (control through SPI)
Marvel 88E6021 Switch
PLL device CDCE706
UART MAX3100
Cypress CY7C68013A USB microcontroller
FTDI FT232H USB/SPI converter
GPIO device MCP23S08
MMC memory card
Dual port RAM
Video decoder ADV7181B from Analog Devices
Image sensors Fill Factory IBIS5, Micron MT9V022, Omnivision OV10640, Sony IMX290 / IMX390
Serializer/Deserializer from Texas Instruments UB953, UB954, UB960, UB964, UB925
Network camera Basler BIP2-1280, GigE camera Allied Manta
Own laboratory equipment: Oszilloscope Keysight MSO-X6004A, Agilent MSO7104B, MSO54642D, 54624A and HP54615B. Logic analyzer Intronix Logicport, Function generator HP33120A, various JTAG-Emulators and many more

INTERFACES AND DATA PROTOCOLS

Ethernet
SPI
I2C
I2S
RS232
S/PDIF
FTDI FT1248
TCP/IP
HTTP
UDP
RTSP
CAN

MISCELLANEOUS

Audio filter
Audio effects (Hall, Flanger)
Active noise cancelling (ANC)
Basics of audio data reduction (MPEG, AC3)
Audio multi-channel systems (Dolby Pro Logic, Dolby Digital, DTS)
Terrestrial Trunked Radio (TETRA), digital speech vocoder
Implementation of proprietary communication protocols
Robotics