Software Components - Texas Instruments TMS320DM6446 DVEVM v2.0 Getting Started Manual

Software Overview
4.1.2

Software Components

I/O
I/O
I/O
DMAI
Codec Engine
Operating System
Adaptation Layer
(OSAL)
User Space
Linux APIs Linux APIs
Kernel Space
CMEM USB 2.0
Driver Driver
File MMC/SD
(ATA) Driver
GP Watchdg
I/O I/O
Timer Timer Driver
ARM Subsystem
4-4
The following figure shows the software components used for application
development with the DVEVM kit:
Application
VISA API
Engine
VID IMG
SPH AUD
Server
xDM xDM
Speech Codec Speech Codec
API API
EMAC Video
Driver Driver
SPI
Link UART
Driver
Driver Driver
I 2 C
I/O
In the previous figure, your application runs on the ARM subsystem. It
handles I/O and application processing. To process video, image,
speech, and audio signals it uses the VISA APIs provided by the Codec
Engine. The Codec Engine, in turn, uses services such as DSP/BIOS
Link and protocols such as xDAIS and xDM to communicate with a pre-
configured Codec Engine Remote Server on the DSP subsystem. The
DSP handles signal processing and the results are available to the ARM
subsystem in shared memory. For more information, see the Codec
Engine Application Developer's Guide (SPRUE67).
In addition, Linux running on the ARM makes a large number of APIs
available to your application, including drivers and timers.
V-Node V-Node
Video-Task Video-Task
xDM xDM
API API
S-Node S-Node
Speech-Task Speech-Task
xDM xDM
API API
Audio
Driver
DSP/BIOS™ Link
Transport
DSP Subsystem + Co-Processor
I-Node I-Node
Image-Task Image-Task
Imaging Imaging
Video Video
xDM xDM
Codec Codec
Codec Codec
API API
A-Node A-Node
Audio-Task Audio-Task
Audio Audio
Speech Speech
xDM xDM
Codec Codec
Codec Codec
API API
Framework Framework Framework
Components Components Components Codec Codec Codec
Engine Engine Engine
DMAN3 ACPY3 DMAN3 ACPY3 DMAN3 ACPY3 DMAN3 ACPY3
Remote Remote Remote
DSKT2 DSKT2 DSKT2 DSKT2 RMAN RMAN RMAN RMAN
Server Server Server
DSP/BIOS™