Audi Concert chip reading...............................

[AkaGura]

Originally Posted by audiozone

Hi friend, here is the info, I already made the motorola interface and works fine, the diagram connection for MCU HC05 is this:

The processor is configured as follows:
1.The line GND, pin 41 ,to the PC’s ground.
2.TxD ,pin 52,to RxD of the PC trough MAX
5.RxD, pin 50 ,to TxD of the PC trough MAX
7.RESET ,pin 18, to the RST of the PC trough MAX
9.IRQ, pin 19, trough 10k and the +12V
11.PD4 ,pin 9, is wired to the ground
13.PD3, pin 11, trough a resistance 1k-2k2 to +5V
15.TCAP1, pin 22, trough a resistor 1k-2k2 to +5V(processor’s pin 10)

Hmmmm ....... For this yellow I'm not sure

[Offenbach]

Originally Posted by wilcocoyot

Hmmmm ....... For this yellow I'm not sure

PD4 should be on logic 0 , which means yellow is correct

[AkaGura]

Originally Posted by Offenbach

PD4 should be on logic 0 , which means yellow is correct

Ok for HC05, but this radio have MC68HC705B32 ...
-= CODEDRADIO =- Base navigation

I think all the answers in this topic should be for a car radio from the first post here:
http://forum.gsmhosting.com/vbb/f179...ading-1305333/

[audiozone]

Originally Posted by wilcocoyot

Ok for HC05, but this radio have MC68HC705B32 ...
-= CODEDRADIO =- Base navigation

I think all the answers in this topic should be for a car radio from the first post here:
http://forum.gsmhosting.com/vbb/f179...ading-1305333/

Ok, you are right, if you want to read a HC705 you need to connect the pin 9 to +5 volts thru a resistor of 2.2k ohms, not to ground. (PLCC 52).

Here is the schema used to built my interface, it's already uploaded many times in this forum:

Motocracker schema

[shooting@orange]

Originally Posted by audiozone

Ok, you are right, if you want to read a HC705 you need to connect the pin 9 to +5 volts thru a resistor of 2.2k ohms, not to ground. (PLCC 52).

Here is the schema used to built my interface, it's already uploaded many times in this forum:

Motocracker schema

Thanks for all your help, but does the radio need to be powered?

[attilaa0]

Yes the radio must powered on.

[shooting@orange]

Do I need to add a 4mhz Christal on pins 16 & 17 ?

[zlix]

if you taken mcu from board you need quartz and 15pf caps on it edges tight to gnd , and mcu must be powered , if you work on radio board , radio needs 2* 12v supply , and quartz depends on soft you use

[shooting@orange]

Still not working.. even tried adding a 4.000mhz christal to 16&17
Here is what happens.. (Video)

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Any help...

[shooting@orange]

Originally Posted by audiozone

Ok, you are right, if you want to read a HC705 you need to connect the pin 9 to +5 volts thru a resistor of 2.2k ohms, not to ground. (PLCC 52).

Here is the schema used to built my interface, it's already uploaded many times in this forum:

Motocracker schema

I've changed my programmer to your spec and still not work... I also now have two dead radios...
Any help would be appreciated..

[Offenbach]

Shooting, send me MCU's
I will read them if they are still "alive" and will return them to you .

[shooting@orange]

Originally Posted by Offenbach

Shooting, send me MCU's
I will read them if they are still "alive" and will return them to you .

Thank you, but they are still in the radio and I need to read them..

Any suggestions as to what I'm doing wrong?

[tyw_leszek]

Maybe crushed eeprom and SEC bit set?

[shooting@orange]

Originally Posted by audiozone

Sorry friend, I copied the steps from a document, some steps are missing: 3,4,6,8,10,12 and 14 but maybe they are not neccesary, I made the connections in that way and works 100%. Here is my interface with the same schema, a little modified by me , I added a socket for easy and fast connection:


My interface

Any chance of picture of base of this board?

1000 thanks friend

[shooting@orange]

I've now tried removing the MCU and wireing direct to the programmer..
I have tried with and without 4.000mhz Christal with no effect..
Any help would be greatful..

Shooting

here is my programmer with chip removed: