I am looking for a small microcontroller to use for board control and the KE04 looks almost perfect. I'd prefer a built-in reference, but I could make it work. The size and price are right. I will need to store about a dozen bytes of calibration data, however, and I can't seem to find confirmation of if one is able to write to flash memory. I can easily dedicate the last sector in flash for this purpose. I don't really care if it's slow and arduous ( as long as I have sufficient program memory to do it ) so long as it's doable. It should only need to happen once when the board is first programmed.
Any pointers would be greatly appreciated.
Martin Jay McKee