MC68HC711 E9 read/write using motorola programmer

Thread Starter

minasalama

Joined Aug 13, 2018
2
i do have a problem that the MC68HC711 E9 doesn't work after i loaded the program despite that the program was copied from working one
 

MrChips

Joined Oct 2, 2009
21,618
How were you able to verify that:

1) the original code was functional
2) that you were able to read the original MCU
3) that you were able to transfer the code to the new MCU?

Is the MCU for automotive application?
 

Thread Starter

minasalama

Joined Aug 13, 2018
2
How were you able to verify that:

1) the original code was functional
2) that you were able to read the original MCU
3) that you were able to transfer the code to the new MCU?

Is the MCU for automotive application?
1. This MCU was used in a machine controller and I do have two of them one of them was damaged so I have the code from the controller of the other machine wich is functional And when I use the MCU of the working controller in the one which is damaged it works
2. Yes, I bought a device well known for reading and writing on Motorola MCU it is called Motorola programmer or Xprog
3. Yea the code was transferred but it seems that i need to change something in code as security thing.
 

MrChips

Joined Oct 2, 2009
21,618
MCUs have a security bit, the opposite of what you are attempting to do.

If the security bit is enabled you will not be able to read the code from the MCU.
Manufacturers will normally enable the security bit in order to protect their IP.
 
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