I am using a FRDM-K64F board in a project, and I am facing a problem. I want my board to start executing the program already flashed into the Targer CPU (K64) right after I power on the board. However, the program only starts after I press the RESET button. I am powering the board through a smartphone charger with micro USB plug, and I have tried both USB connectors (SDA and MCU). When I power the board with the SDA USB connector, I need to use RESET button, and when I power it with the K64 USB connector, not even RESET works. Also, I tried both Segger OpenSDA2 and mbed apps loaded on the OpenSDA controller, and results do not change.
I need to use one of the 2 USB connectors to power the board; I do not want to use the 3V3 or 5-9V power input pins on J3. My question is: should I cut some jumper trace, and solder jumper pins? Maybe change some of the already installed jumper setting?