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K65 Core / system clock max to write to Flash

Question asked by Charles Klibbe on Mar 13, 2017
Latest reply on Mar 16, 2017 by Charles Klibbe



I would like to know what is the clocking requirements for the K65 when using 180MHz and writing to the flash?

I can't seem to find any mention in the documentation but if I try write to the flash I get a kStatus_FLASH_AccessError. I have tried to slow the core clock down by changing SIM->CLKDIV1 (OUTDIV1, OUTDIV2, OUTDIV3 & OUTDIV4) and I still get the access error even though the core clock is now 45MHz and the other clocks are divided appropriately. 



Charles Klibbe