I have used many kinetis chips but this is the first design that has no crystal. It is intended to use the internal oscillator. It is not possible to flash any of these units without the crystal. They continuously put themselves in reset resulting in a series of pulses on the reset pin. This results in the orange light on the jlink. When I try to flash the jlink blinks red. The jlink can connect but gives an error when any memory is attempted to be read or written. What could be the problem? Is it possible to use the KL26 with only the internal oscillator?