NXP Semiconductors K32 L2A Series, Reference Manual, Page: 268 / 1379

14.3.7.6 Response packet
The responses are carried using the same command packet format wrapped with framing
packet data. Types of responses include:
• GenericResponse
• GetPropertyResponse
• ReadMemoryResponse
• FlashReadOnceResponse
• FlashReadResourceResponse
GenericResponse: After the Kinetis Bootloader has processed a command, the
bootloader will send a generic response with status and command tag information to the
host. The generic response is the last packet in the command protocol sequence. The
generic response packet contains the framing packet data and the command packet data
(with generic response tag = 0xA0) and a list of parameters (defined in the next section).
The parameter count field in the header is always set to 2, for status code and command
tag parameters.
Table 14-15. GenericResponse Parameters
Byte # Parameter Descripton
0 - 3 Status code The Status codes are errors encountered during the execution of a
command by the target (Kinetis Bootloader). If a command succeeds, then
a kStatus_Success code is returned.
Table 14-62 , Kinetis Bootloader
Status Error Codes, lists the status codes returned to the host by the
Kinetis Bootloader for ROM.
4 - 7 Command tag The Command tag parameter identifies the response to the command sent
by the host.
GetPropertyResponse: The GetPropertyResponse packet is sent by the target in
response to the host query that uses the GetProperty command. The GetPropertyResponse
packet contains the framing packet data and the command packet data, with the
command/response tag set to a GetPropertyResponse tag value (0xA7).
The parameter count field in the header is set to greater than 1, to always include the
status code and one or many property values.
Table 14-16. GetPropertyResponse Parameters
Byte # Value Parameter
0 - 3 Status code
4 - 7 Property value
Table continues on the next page...
Functional Description
K32 L2A Reference Manual, Rev. 2, 01/2020
268 NXP Semiconductors