CCA2D2 Serial Communications

Both versions of the CCA2D2 interface communicate using the following serial parameters:

bps 9600

1 stop

no parity

no software (XON/XOFF) or hardware handshaking

You can test the interface and the serial cables by starting a serial communications program and opening a connection with the parameters above.  After opening the connection if everything is working you should see the following response from the interface:

CCA2D2v80C 10/01 WCL

What you see displayed above is interface type, CCA2D2; version of the software, 80C; date, October 1; and the initials of the author Walter Lenk.  

The protocol for the interface operates in either command or data mode.  The following abbreviated lists of commands for both interfaces should helpd with testing.

CCA2D2-v2

Command Mode

While in Command Mode the LED on the interface blinks once per second.

v	displays version info
a	start collecting data from Port A 24 bit convertor

Data Mode

While in Data Mode 'a' the LED on the interface blinks twice fast per second.

c	stops data collection mode and returns to command mode

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CCA2D2-v1

Command Mode

While in Command Mode the LED on the interface blinks once per second.

i	displays version info
a	start collecting data from Port A 24 bit convertor

Data Mode

While in Data Mode 'a' the LED on the interface blinks twice fast per second.

c	stops data collection mode and returns to command mode

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