NXP Semiconductors K32 L2A Series, Reference Manual, Page: 289 / 1379

Special care must be taken when writing to flash.
• First, any flash sector written to must have been previously erased with a
FlashEraseAll, FlashEraseRegion, or FlashEraseAllUnsecure command.
• Writing to flash requires the start address to be .
• The byte count will be rounded up to a multiple of , and the trailing bytes will be
filled with the flash erase pattern (0xff).
• If the VerifyWrites property is set to true, then writes to flash will also perform a
flash verify program operation.
When writing to RAM, the start address need not be aligned, and the data will not be
padded.
The start address and number of bytes are the 2 parameters required for WriteMemory
command.
Table 14-47. Parameters for WriteMemory Command
Byte # Command
0 - 3 Start address
4 - 7 Byte count
Chapter 14 Kinetis ROM Bootloader
K32 L2A Reference Manual, Rev. 2, 01/2020
NXP Semiconductors 289