When the flash security function is effective, please connect the external crystal oscillator. If you use this program by the internal CR clock, for secured microcontroller, when you erase, communication error will occur and the trimming data will lost.
Thank you for your reply.
My target is working with 32MHz external crystal oscillator.
Already, I confirmed that target which removed crystal was available to refresh.
In this time, trimming data was erase too.
But, I want to refresh the target with 32MHz crystal.
Your FLASH MCU Programmer can not be set frequency only up to 24MHz.
Do you have a modification plan to correspond to 32MHz.