unable to flash MC9S12XE

lin_karl — Mon, 19 Dec 2011 11:29:06 GMT

Hello,

I am using microcontroller MC9S12XET256MAL and I am using Code Warrior as development code and PE Micro USB multilink interface as flashing tool. originally I have no problem flashing the program into uC. however, yesterday when I flash again, I got the error message says, "Communicatoin with the target failed: the target MCU has no clock or wrong BDM clock speed is used or derivative is secure."

at first, I fixed the problem by going into MCU properties > Internal Peripherals > FLASH > security state and set it to disable. I was able to flash one more time before it display the above error message again.

does anyone know what cause it and how do I fix it?

Thanks,

Karl

Re: unable to flash MC9S12XE

kef — Tue, 20 Dec 2011 15:55:09 GMT

MCU properties > Internal Peripherals > FLASH > security state is probably Processor Expert setting? It won't help unsecuring secured device. I thing this setting allows to change NVSEC bits in linker produced ELF and S-records files.

Try downloading and unsecuring with Unsecure_12 tool from www.pemicro.com

topic unable to flash MC9S12XE in CodeWarrior for MCU

unable to flash MC9S12XE

Re: unable to flash MC9S12XE