"Multi-CD" emulator - feedback report.

[Vitat]

mike,

if i want to connect more then one CDC or emulator to the HU i just need to give every device a different ID right ?

No. You must have an adapter with microcontroller to connect more than one device.
I'll be working on it...

[Anonymous]

Hi!

Iґve built your adapter.
Programming the ATmega8 with yaap works.
Now my Question: Is there any way to test it before i connect it to my HU?
Iґve built it with the MAX202. Is it possible to see something on my terminal (PC) to know that at least the ATmega8 and the MAX202 are working?

Is it enough if I uncomment the following in constants.h ? If yes, what should i see?
[code:1]
#define LOG

#define ASENBUS_ENABLE
[/code:1]

Regrads,
Sebastian

[Anonymous]

hi

if u enabled LOG then you shouldt see the message "Start" followed by a carriage return and a line feed in hyperterminal right after powerup
You should't also see a "ON"or "OFF" when ASENBUS is switched on or offf

there will not be any other message in hyperterminal until a real communication between your HU and the emulator has been established

regards
mike

[sebastian]

hi!

just enabled LOG.
There is at first a "Start", if powered on. But at next there always comes "CD-Error". I think this is ok, because there is no HU connected.

Thanks to mike,

regrads,
Sebastian

[mike]

hi

atmega seems to work then
you are right this error only comes if an acknowledge error occurs during a send from the emulator to the HU  (or the HU is missing  )

regards
mike

[Vitat]

If you define ASENBUS_ENABLE - don't forget that ASEN_BUS can not connecting to the MEGA directly!
ASEN_BUS from HU have 12V level! You must using transistor! Looking to my old version of schematic of IP-Bus emu with ASENBUS transistor.
http://www.vitat.spb.ru/files/ip-bus/ip-bus_sch.gif

[sebastian]

hi,

now iґjust connected my HU to the Emulator, but there also are only a "START" after power-on, and lots of "CD Error".

Could you please help me with this problem??

thanks,
Sebastian

[Vitat]

sebastian,
Common to ICQ.

[kamil]

hi,
the emulator runs fine since one month ago in my car together with an selfmade MP3 player.
best regards

[Vitat]

kamil,
Thanks for feedback!
Photos?

[kamil]

hi,



left breadboardpcd is the emulator.
currently Iґm using a Mega16, because mega8 is currently not availible for me.
i will try to import the emulatorsoftware in the player controller (mega128),
but currently i have some problems to understand the emulatorsoftware, because i just learning program atmel ( and  C ).
best regards

[Vitat]

kamil, Very nice!
This photo in your car? How about any box?

[rlemon]

After many problems my emulator now working. In next week I put some photos of my project it's MP3 player mounted in Pioneer KEH-P7800R head unit.

[Vitat]

After many problems my emulator now working. In next week I put some photos of my project it's MP3 player mounted in Pioneer KEH-P7800R head unit.

Congratulations!

[rlemon]

This is my "Minimum hardware MP3 Player".
ATMega162 (CPU )
VS1001k (mp3 decoder)
LM2575 (voltage regulator)
Photos: