NXP Semiconductors K22F series - Page 323

Process command
Host
Target
WriteMemory
: startAddress = 0x20000400, byteCount = 0x64
0x5a a4 0c 00 06 5
a
04 00 00 02 00 04 00 20 64 00 00 00
Generic Response:
ACK: 0x5a a1
ACK: 0x5a a1
Data packet
:
0x5a a5 20 00 CRC16 32 bytes data
Process Data
ACK: 0x5a a1
Final Data packet
0x5a a5 length16 CRC16 32 bytes data
ACK
Process Data
Generic Response
0x5a a4 0c 00 23 72 a0 00 00 02 00 00 00 00 04 00 00 00
ACK: 0x5a a1
0x5a a4 0c 00 a0 0e 04 01 00 02 00 04 00 20 40 00 00 00
Figure 13-15. Protocol Sequence for WriteMemory Command
Table 13-39. WriteMemory Command Packet Format (Example)
WriteMemory Parameter Value
Framing packet start byte 0x5A
packetType 0xA4, kFramingPacketType_Command
length 0x0C 0x00
crc16 0x06 0x5A
Command packet commandTag 0x04 - writeMemory
flags 0x00
reserved 0x00
parameterCount 0x02
Table continues on the next page...
Chapter 13 Kinetis Flashloader
K22F Sub-Family Reference Manual, Rev. 4, 08/2016
NXP Semiconductors 323