mc68hc11ea9 1d47j - GSM-Forum

barin · 03-20-2011, 14:58

Hi All!

I would like to read eeprom mc68hc11ea9 1d47j on board, using moto cracker interface.
I am new to this dump stuff, have read newbie threads and searched but could not find answer to what pins where to connect.
I only find solution that "download datasheet".
I downloaded, read it, but still no clue what pins where to connect.

On interface i have:
VCC
PD3
TCAP1
GND
IRQ
RESET
RXD
TXD

Could someone point me in the right direction?
Thank you in advance.

kbzaloka · 03-20-2011, 15:39

based on datasheet i have you need:

mcu PIN1 *Gnd
mcu PIN2 *Vdd
mcu PIN3 *MODA
mcu PIN17 * reset
mcu PIN20 * RXD
mcu PIN21 * txd

lift PIN23 + use 8MHz xtal

check if your pcb is agree with this info
and put any info in what you are working may help too

forget if it is secured...

regards!k

barin · 03-22-2011, 10:58

Tried and did not work.
Mcu is immo in my car and reason it is in garage for two months now

Probably it is secured.
In datasheet i read about special bootstrap mode. Do you know how could i initiate that?
As i understood it would delete eeprom data and allow me to write in it,reseting security.
I have bin to write so no problem if data is lost in eeprom, but i need to write in it.

Thanks for help

stefpet · 03-22-2011, 14:32

Read here -> http://www.etlweb.com/prod_prog_mc68...c11ea9_opg.pdf ,may be help you .

03-20-2011, 14:58	#1 (permalink)
barin Junior Member Join Date: Mar 2011 Location: Jaszbereny, Hungary Posts: 2 Member: 1539754 Status: Offline Thanks Meter: 0	mc68hc11ea9 1d47j Hi All! I would like to read eeprom mc68hc11ea9 1d47j on board, using moto cracker interface. I am new to this dump stuff, have read newbie threads and searched but could not find answer to what pins where to connect. I only find solution that "download datasheet". I downloaded, read it, but still no clue what pins where to connect. On interface i have: VCC PD3 TCAP1 GND IRQ RESET RXD TXD Could someone point me in the right direction? Thank you in advance.

03-20-2011, 15:39	#2 (permalink)
kbzaloka No Life Poster Join Date: Oct 2008 Location: Las Piedras.Uruguay Posts: 923 Member: 883282 Status: Offline Sonork: DI kronoS Thanks Meter: 432	based on datasheet i have you need: mcu PIN1 Gnd mcu PIN2 Vdd mcu PIN3 MODA mcu PIN17 reset mcu PIN20 * RXD mcu PIN21 * txd lift PIN23 + use 8MHz xtal check if your pcb is agree with this info and put any info in what you are working may help too forget if it is secured... regards!k

03-22-2011, 10:58	#3 (permalink)
barin Junior Member Join Date: Mar 2011 Location: Jaszbereny, Hungary Posts: 2 Member: 1539754 Status: Offline Thanks Meter: 0	Tried and did not work. Mcu is immo in my car and reason it is in garage for two months now Probably it is secured. In datasheet i read about special bootstrap mode. Do you know how could i initiate that? As i understood it would delete eeprom data and allow me to write in it,reseting security. I have bin to write so no problem if data is lost in eeprom, but i need to write in it. Thanks for help

03-22-2011, 14:32	#4 (permalink)
stefpet Freak Poster Join Date: Apr 2006 Location: Bulgaria ,Varna Posts: 135 Member: 256425 Status: Offline Thanks Meter: 121	Read here -> http://www.etlweb.com/prod_prog_mc68...c11ea9_opg.pdf ,may be help you .