Sony FCB-ER8550 Technical Manual page 61

Command
CMD_CHK_GUARD
CMD_QUERY_VERSION
CMD_SWITCH_MODE
Description
ERR_SEQUENCE
Communication sequence error. No parameter.
This cannot be received before communication is initialized.
ERR_BIG
Packet size is too large.
ERR_INVALID_PARAM
dataNo is invalid. (A value is skipped.) dataSize is invalid.
Errors other than described above are processing errors in this unit.
■ Outline
This command inquires the version of new and old firmware.
■ Command parameter
None
■ Response (ID/Parameter)
ERR_OK
Normal termination. The version of new and old firmware is returned using a parameter.
Parameter →
Parameter data arrangement
OK Parameter{
oldFirmMinorVersion
oldFirmMajorVersion
newFirmMinorVersion
newFirmMajorVersion
}
■ Meaning
oldFirmMinorVersion
oldFirmMajorVersion
Minor and major version numbers of old firmware
newFirmMinorVersion
newFirmMajorVersion
Minor and major version numbers of new firmware
Fixed to 0x0000 before rush conditions are confirmed. → The version is not known yet.
ERR_PROV
This cannot be used for the communication protocol version set to a packet header.
No parameter
ERR_SEQUENCE
Communication sequence error. No parameter.
This cannot be accepted before communication is initialized.
Errors other than described above are processing errors in this unit.
■ Outline
This command performs switching to a firmware update mode.
■ Command parameter
None
■ Response (ID/Parameter)
ERR_OK
A firmware update mode switching command is received normally.
Parameter →
Parameter data arrangement
OK Parameter{
reserved = 0
numStatus = 1
Status ID
}
■ Meaning
numStatus
This is the number of statuses following numStatus. (Fixed to 1.)
Status ID
STAT_OK Mode switching processing is terminated normally.
STAT_BUSY Mode switching processing in progress
Size [Byte] Type
2
2
2
2
Size [Byte] Type
4
4
2
1
uint
uint
uint
uint
uint
uint
uint