NZ-Design wrote:For those that would like to knowThe problem arises from the time between powering up and reset going high is to short.The development board time is 1.3mS standard.I have changed the reset device and it is now 180mS and the system is performing correctly.
The likely cause is that the ramp-up slope for the power supply is too slow for the MCU - the minimum rate is specified. I assume you are applying power to the board by turning on mains power - if you switch the DC output going to the board, the problem should disappear for the normal reset delay.
Regards,
Mac