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KE15z - cannot get out of ROM bootloader mode

Question asked by Benson Peter on Feb 14, 2019
Latest reply on Feb 14, 2019 by Mark Butcher



I've started a project with KE15Z. I have to flash the image into this controller using the ROM bootloader over UART. And I got successful with this. But I am not able to go back to the normal mode. Even after a power cycle/reset(with NMI pin HIGH) board boots into the bootloader mode. I don't see anything about it in the reference manual also.


For flashing a new image into the board, I force the controller into the bootloader mode by pulling the NMI pin low during the reset. Then I use the blhost binary to flash the s19 image.


I tried the command "reset" from the blhost console. But it did not help. Also, I observe that on a reset/power cycle, the board jumps to the application after some timeout. 


Any help is very much appreciated. Thanks in advance.