NXP Semiconductors K22F series - Page 318

Process command
Host
Target
FlashProgramOnce: index=0, byteCount=4, data=0x12345678
ACK:
0x5a a1
ACK:
0x5a a1
Generic Response:
0x5a a4 10 00 7e 89 0e 00 00 03 00 00 00 00 04 00 00 00 78 56 34 12
0x5a a4 0c 00 88 1a a0 00 00 02 00 00 00 00 0e 00 00 00
Figure 13-12. Protocol Sequence for FlashProgramOnce Command
Table 13-31. FlashProgramOnce Command Packet Format (Example)
FlashProgramOnce Parameter Value
Framing packet start byte 0x5A
packetType 0xA4, kFramingPacketType_Command
length 0x10 0x00
crc16 0x7E4 0x89
Command packet commandTag 0x0E – FlashProgramOnce
flags 0
reserved 0
parameterCount 3
index 0x0000_0000
byteCount 0x0000_0004
data 0x1234_5678
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.
13.3.6.8
FlashReadOnce command
The FlashReadOnce command returns the contents of the program once field by given
index and byte count. The FlashReadOnce command uses 2 parameters: index and
byteCount.
Functional Description
K22F Sub-Family Reference Manual, Rev. 4, 08/2016
318 NXP Semiconductors