NXP Semiconductors K22F series, Reference Manual, Page: 317 / 1407

Table 13-29. FillMemory Command Packet Format (Example)
FillMemory Parameter Value
Framing packet start byte 0x5A
packetType 0xA4, kFramingPacketType_Command
length 0x10 0x00
crc16 0xE4 0x57
Command packet commandTag 0x05 – FillMemory
flags 0x00
Reserved 0x00
parameterCount 0x03
startAddress 0x00007000
byteCount 0x00000800
patternWord 0x12345678
The FillMemory command has no data phase.
Response: upon successful execution of the command, the target (Kinetis Flashloader)
will return a GenericResponse packet with a status code set to kStatus_Success, or to an
appropriate error status code.
13.3.6.7 FlashProgramOnce command
The FlashProgramOnce command writes data (that is provided in a command packet) to a
specified range of bytes in the program once field. Special care must be taken when
writing to the program once field.
• The program once field only supports programming once, so any attempted to
reprogram a program once field will get an error response.
• Writing to the program once field requires the byte count to be 4-byte aligned or 8-
byte aligned.
The FlashProgramOnce command uses 3 parameters: index, byteCount, data.
Table 13-30. Parameters for FlashProgramOnce Command
Byte # Command
0 - 3 Index of program once field
4 - 7 Byte count (must be evenly divisible by 4)
8 - 11 Data
12 - 16 Data
Chapter 13 Kinetis Flashloader
K22F Sub-Family Reference Manual, Rev. 4, 08/2016
NXP Semiconductors 317