13
Configuration
5.
The content of all camera registers is called a profile. There is space in non volatile mem-
ory for 17 profiles: The PowerUpProfile, 8 user profiles and 8 factory profiles.
Any change of a specific register through the serial interface is immediately processed
and written to the volatile part of the memory and gets lost when power goes down.
A command must be used to store the actual setting in non volatile memory. After power-
up the PowerUpProfile is loaded from the non-volatile to the volatile part of the memory.
A load or write command exchanges data between the CameraProfile and one of the eight
user profiles. The eight factory profiles can be read but not be written by any command.
All values are given in hexadecimal notation, e.g.:
0xff
or
0ffh = 255
Commands
5.1.
ASCII strings are used to change camera parameters. All commands start with a colon
followed by the command character.
Notice
Note that the commands are case sensitive.
The baudrate can not be saved. Therefore the camera always defaults to 9600 baud
after power on or reset.
After a command has been recognized, processing is immediate for all commands but
the save command (
:p
). This needs a EEPROM write time. An answer is provided with
read type commands (e.g.
:v, :w
), or, if the command acknowledge flag is set, after pro-
cessing of each command an ACK or NAK character. Processing of wrong commands is
stopped immediately on recognizing the error. A new command must start with a colon.
All unknown commands will return NAK. After the colon the maximum time between the
characters must not exceed 2.7 sec., else the command will terminate with NAK. This
prevents the parser from hanging in the input if a command is not entered complete.
Most of the commands can return the actual value by sending '
?
' as parameter. Some
commands then also return the actual value range.
Summary of Contents for HXC13
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