On 11/4/2011 1:14 PM, Isaac Marino Bavaresco wrote:
> Em 4/11/2011 14:58, Mark Hanchey escreveu:
>> On 11/4/2011 12:21 PM, William "Chops" Westfield wrote:
>>>>> Are there any other microcontrollers/mpus [with MIPS architecture]
>>> LOTS of MPUs/SoCs.  Cavium, PMC-Sierra, and Broadcom, haven't been
>>> mentioned yet.
>>>
>>> BillW
>>>
>> Most bluray players are using broadcom chips with mips processors. I
>> found one gem of a unit inside an insignia player. They have the
>> broadcom soc, the ram, the flash, ethernet ports, SATA interface, HDMI
>> output, serial console, jtag pins, spdif connections, and it is all
>> located on a board just 4 inches square that is powered from a 5V and 3V
>> supply. I can remove it and use it like a general purpose computer, all
>> the ports are located on the board so it is just plug in and use , no
>> need to solder wires, etc.  They even left the system totally unlocked
>> with the root password being root. The processor is running at 650Mhz
>> with 256MB ram and 256MB flash.  I got the player for $30 as is and this
>> was a nice find.   I haven't done much with it yet other than try
>> different linux kernels but it has a lot of potential because all the
>> video decode hardware is still accessible.
>>
>> mark H.
>
> That's great! Please tell the brand and model of this gem.
>
> Where did you buy it? Was it defective?
>
>
> Isaac
>
I bought the player for $30 on ebay because I needed something to do=20
netflix with. The player was listed as broken and as is due to disc read=20
errors but the netflix part still worked. The drive was beyond repair so=20
I used a pc drive for a short time till I got another player.
The model of the player is Insignia NS-BRHTIB . It is an combination=20
bluray player and home theater amp. The amp is 5x100W class D amps that=20
are on a separate board supplied via the spdif audio output from the=20
board containing the micro.   Another bonus besides the class D amp that=20
uses a cirrus logic DAC and TI amps is the board with the audio also has=20
a stock STM32MF103 ARM cpu complete with jtag pinout, it is used to=20
control the units front VFD . It also contains a silicon image HDMI=20
switch to switch 3 devices .  The power supply is no slouch either with=20
multiple 12V, 5V, 3.3V outputs as well as a nice 35VDC supply for the=20
class D amps.

It looks like to me that someone wanted to build a bluray player with=20
builtin amplifier and used all reference design boards from the various=20
manufacturers.  Everything is a separate board on the design and when I=20
researched further I found the reference boards were almost identical to=20
what is in the player. The SATA interface works with hard drives or any=20
SATA device and the USB ports are 2.0 high speed.

Picture of the cpu board
http://imageshack.us/photo/my-images/233/boardtop.jpg/
Bottom of board, they nicely labeled every single connection throughout=20
the player ,
http://imageshack.us/photo/my-images/804/bottoma.jpg/



Here is a sample of some of what the boot up looks like in the console:

BCM97601 B0-SEC  CFE v2.1.22 (CFE core v2.1, BSP_REV 22), Endian Mode:=20
Little
Build Date: Mon Jan 25 15:37:58 EST 2010 (kdasu@stb-mhtb-04)
Copyright (C) Broadcom Corporation.
DDR                        : Bank0:128MB@400MHz | Bank1:256MB@400MHz
NAND Boot                  : FlashSize 512MB on CS0, BlkSize 128KB,=20
PgSize 2048B
NAND vendor timing         : addc1095 HYNIX HY27UF084G2B SLC =20
t1(33535238) t2(80000b78)
Linux version 2.6.24.7_524-uclibc-brcm (root@stbcm-mhtb-1) (gcc version=20
4.2.0 20070124 (prerelease) - BRCM 10ts-20080721)
Reset 7.1CH DAC AKM4359~~~
DirectFB/Core: Single Application Core. (2010-06-29 15:54)
(*) DirectFB/BCMCore/system_p_init: video memory size is 171442076
System model is : [INSIGNIA NS-BRHTIB BD Player]
(none) login: root
Jun 11 00:00:49 login[128]: root login  on `ttyS0'
#




--=20
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