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Recovery Bootloader Mode on KL27 with BOOT ROM

Question asked by Ernesto Andres Rincon Cruz on Dec 23, 2014
Latest reply on Oct 13, 2016 by Olivier Martin

Hello everyone.

 

 

Right now I have a microcontroller KL27 has BOOT ROM. The first time I connected to the USB port, the computer recognized it well..

From KinetisUpdater.exe I could program a small project to light a led. It worked well.


The problem is that now is not detected by the computer to continue with the tests.


  • That recommendation can give me for the microcontroller can enter Bootloader mode once again.
  • As I can set "bootloader configuration area" from processor expert and as I do when no use processor expert.


In the circuit, I have a button on the PTA4/NMI_b pin.

 

Schematic_KL27.jpg

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