I'm trying to flash the demo hex file from STM32F469I-Discovery Kit. But STLink Utility fails when download the Firmware.
I've attached log Files.
Following Error Message occurs:
14:32:53 : Connection to device is lost: check power supply and debug connection.
14:32:53 : If the target is in low power mode, please enable "Debug in Low Power mode" option from Target->settings menu.
14:53:49 : Cannot save hex/srec file to bin file
Is there a problem when flashing the external NAND Flash?