2M5T-14B056-DD

[sky59]

Hi friends,

 

I could not find any picture of PCB of any airbag computer. So I attach one. I am going to repair it because it exploded already airbag /seat close to driver/

 

Another picture shows places where programmer can be connected. I found these by watching PCB routes and measuring resistances. It seems that +5V for programmer has got 1Ohm resistance

in series so it can only be used to inform programmer about +5V ?

 

Can anybody please confirm that connector is correctly identified? /BKGD, GND, VFP, +5, RESET/

 

Please, if anybody knows what should I delete in EEPROM can write it over here? I mean space in EEPROM from 0x??? to 0x??? must be filled with FF.

 

Thank you for the help!

 

I hope my photos will be usefull!

[o717ka]

 hi, look this 

 

2M5T-14B056-AD.rar

 

 

[sky59]

hi, look this

 

2M5T-14B056-AD.rar

 

 

Thank you, but I am not able to connect directly on microprocessor pins...... Am I too old? :-) for this I took macrophoto of PCB to find connector where also manufacturer connects an dit seems I have found it.

Tomorrow I am going to read EEPROM with programmer so I will test it but I wanted to be sure.......

[o717ka]

good luck

[sky59]

good luck

 

in a meantime a managed to connect with thin wires to the "connector", I did not add solder I only heat-up from one side PCB and from front I put wires in the vias...

 

tomorrow I take it to work on profi programmer....

 

 

can anybody confirm what addresses I should fill up with FF?

[o717ka]

compare its with my archives

[sky59]

compare its with my archives

 

I can not read EEPROM with professional programmer! Is microcontroler secured ? What programmer must I use?

[o717ka]

what is your programmer?

[sky59]

what is your programmer?

 

I do not remember the name but it is professional that we use in company, so it does only what is allowed by motorola

 

is it normally BDM mode disabled? it is standard 2M5T-14B056-DD

[o717ka]

UPA-USB Serial Programmer supports Motorola MC68HC912D60 (mask 1L28M)   elrasoft.com

[sky59]

UPA-USB Serial Programmer supports Motorola MC68HC912D60 (mask 1L28M) elrasoft.com

 

in a meantime I studied some application notes and realized that there IS possibility to read eeprom if processor is protected

 

there are some hardware BDM commands and through these some registers can be written, BDM on chip memory enabled and BDM started..... then we can do what we want

 

are you sure UPA-USB is doing this to overcome stupid motorola protection? or do you know such programmer? because it seems my processor is protected.....

 

see AN and look for hardware commands... :-)

AN2104.pdf

Изменено 18 мая, 2010 пользователем sky59

[o717ka]

works with this processor

 

 

 

[sky59]

works with this processor

 

 

 

Finally I used Beeprog programmer from www.elnec.sk

 

Freescale programmer failed..... :-)

 

I attach eeprom, could someone helo to clean it from crash?

 

thank you

 

spasiba /I used to learn russian langauge for 10 yers but I can not write azbuka over here/

crashed.rar

[o717ka]

2M5T-14B056-DD clear.rar пробуй

[sky59]

2M5T-14B056-DD clear.rar пробуй

 

Works, thanx

 

see attached video

ABG___focusOK.rar