i have avr MC9S08SH4 was damage and i have other on good the two avr works on boards i mean pcb. i can bring new MC9S08SH4 and upload the program from the good work one and download the program to the mew on by use Multilink adapter !!!!!?????
I do not understand your question AVR or freescale?
You can only access the original firmware if you can pass the following steps:
1. The chip operates.
2. The software should not be protected.
3. be protected should be set and meet the backdoor key.
4. If you have not configured the backdoor key you can not read the firmware in any way, unless you can enter it with a routine that give you a serial port and read the firmware and pull out the chip, and go capturing a PC. If well programmed this will not have access to run this routine.
If you have an OS you can access (if you know) the context of a task and change it to run yours, like a virus but is already more complex.
thank you for cooptation....
to do the steps what is the economic interface i can uesd also what is the software i in need ..
thank you again
I am not sure if you need a OSBDM, if this is the case, you can get the schematics and the firmware, please check the following link:
P&E Microcomputer Systems
I hope this will help you
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