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参数资料
| 型号： | OM5730 |
| 厂商： | NXP Semiconductors N.V. |
| 英文描述： | STB5860 (Set-Top Box) STB concept(STB5860机顶盒初步设计) |
| 中文描述： | STB5860（机顶盒）机顶盒的概念（STB5860机顶盒初步设计） |
| 文件页数： | 16/20页 |
| 文件大小： | 80K |
| 代理商： | OM5730 |
1999 Aug 25
16
Philips Semiconductors
Preliminary specification
STB5860 (Set-Top Box) STB concept
OM5730
6
DEVELOPMENT ENVIRONMENT
This chapter describes how to develop your own STB5860
application, what environment you need and what
hardware and software interface the system provides.
It details what is needed to start developing your
applicationandinadditionwilltellyouwhatyouwillreceive
with the system that gets you on your way and shorten
development time and reduce the costs involved.
6.1
Summary of the STB5860 kit
WhenyoureceivetheSTB5860developmentsystemitwill
offer you a complete set-top box system along with the
necessary documentation for development. This will give
you a ‘plug and play’ solution to test and develop a system
based on this platform.
6.1.1
T
HE HARDWARE
This consists of a satellite front-end board, a front panel
with the display and IR-receiver, a main board, smart card
unit, the remote control and all cables needed to make the
necessary connections. On the main board you will find a
programmed EPROM and flash memory.
6.1.2
T
HE SOFTWARE
You will receive not only the binary executable, but also all
source codes in C, header files and documentation files.
The software will include the complete Application
Programmers Interface (API) for all components on the
board, except for IEEE 1394, which will be a subset of the
standard. This API will offer a developers logical services
like audio, video, graphics, descrambling, etc. Together
with this you will get the Feature Demonstration
Application (FDS). This is an application that will show you
the key features of the system.
6.1.3
D
OCUMENTATION
Here you will find the user manual and programmers
reference for all major parts of the system like the
SAA7215(AVGdecoderchip),theSAA7219CPUMPEG2
stream transporter and the satellite front-end module
(OM5718).
6.1.4
T
EST REPORTS
These are included to prove the system maturity. You will
see the reports of the API tests and the reports concerning
theextensivein-systemtest.Thelatterisdonetoprovethe
chip-set in a complete system environment, a customer
like set-up, customer use based on our experience with
previous end-customers.
6.2
How to get started
The first day you receive the system you can hook up a
satellite dish or transport stream (DiSeqC or not), a TV,
connect power to the system and it will start with the FDS
program. This demo gives you a menu driven interface to
the system. You can test and experiment with all main
features of the system. See how fast the on-screen display
functions, try out the IEEE 1394 interface to a similar
board, look at window tests, try out teletext, etc. This will
give you an understanding of the system and its
possibilities.
6.3
Hardware interface with the STB5860
Besides the dish and the TV (SCART, SVHS and
CCIR 656 YUV) there is an interface to IEEE 1394, SPDIF
(multi-channel audio decoder), to a PC via RS232 and
IEEE 1284 (Centronics), a debug socket (ROM
emulator and I/O), JTAG connector (boundary scan
testing), smart card unit and a remote control.
To use a ROM emulator there are two I/O connectors on
the main printed-circuit board where an extension board
will fit on the debug connector. This extension gives you
access to two footprints for 1-Mbyte ROMs.
6.4
Software interface with the STB5860
In the following way you can interface to the system to
develop and debug your own application. Connect a PC
(or other development system) with a ROM emulator to
extension board on the debug connector, compile the
supplied source code and load the executable in the ROM
emulator. Connect the RS232 debug port to the PC and
run a terminal program, this will give you a debug screen.
If you don’t have a ROM emulator you can use the parallel
port (IEEE 1284) of the set-top box. There is a loader
program embedded in the EPROM of the system which
allows development without ROM emulator.
The maximum possible memory configuration is as
follows.AbootROM(256 kbytes)withtheloaderprogram,
2 Mbytes fast DRAM as scratch memory, 32 kbytes NVM
for channel data storage, 4 Mbytes flash memory to store
the program and 4 Mbytes SDRAM video memory.
The boot chip select can be switched between boot ROM
and flash memory. Of course a smaller configuration is
possible, just leave the memory footprints open.
6.5
Running ‘hello world’
We have supplied a small program which is called ‘hello
world’ to help you start developing your own software.
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