Performance Motion Devices PR8358120, User Manual

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Operation
Prodigy/CME PC/104 User’s Guide
47
2
Settings & default values for Serial 1 and Serial 2:
To create a serial port peripheral connection, the above parameters are specified in the PRP action Open with the
resource set to Device . Messages to and from the Serial port are transmitted via the Send and Receive actions sent to
the Peripheral resource. Whenever a new serial port peripheral is opened its previous function is canceled. By default
Serial 1 listens for PRP communications and Serial 2 is the console port.
After a reset or at power-up, the card retrieves default information for the serial ports. To change these default values,
the PRP action
Set is send with a resource of Device . Section 2.6.3, “Setting Card Defaults,” on page 50 describes this
further.
For detailed information on PRP action formats and function, refer to the Prodigy/CME Programmer’s Reference .
2.5.2.1 Connections & associated signals
J17 comprises a special 10-pin dual header connector used to connect one or both serial ports. See Section 1.4,
“Accessory Products,” on page 12 and Section 4.2.6, “Serial Connector,” on page 76 for a detailed signal description
of the Serial connector.
2.5.3 CANbus Communications
The Prodigy/CME PC/104 card provides a general purpose CANbus port compatible with the CAN 2.0B standard
which may be operated at various communication rates from 10,000 to 1,000,000 bps (bits per second). In addition,
each CANbus devices is assigned two CAN identifiers (also called a addresses); one for transmission of messages, and
one for reception of messages.
The following table summarizes this information along with the factory defaults for these values:
To create a CANbus peripheral conversation, the baud rate, send address and receive address are specified in the PRP
message body of an
Open action sent to the Device resource. Messages to and from the CANbus port are transmitted
via the Send and Receive actions sent to the Peripheral resource.
After a reset or at power-up, the card retrieves default information for the CANbus port. To change these default
values, the PRP
Set action is used with a resource of Device . See Section 2.6.3, “Setting Card Defaults,” on page 50
for more information.
For detailed information on PRP action formats and function, refer to the Prodigy/CME Programmer’s Reference .
2.5.3.1 Connections & associated signals
J16 is an 8-pin dual header that comprises the CANbus network connection. See Section 4.2.8, “CAN Connectors,”
on page 77 for a detailed signal description of the CAN connectors.
Parameter Range Serial 1 Default Serial 2 Default
Baud rate 1200 to 460,800 57,600 115,200
Parity none, even, odd none none
# Data bits 5, 6, 7, 8 8 8
# stop bits 1, 2 1 1
Parameter Range Default
Baud rate 10,000 to 1,000,000 bps 1,000,000
Host send address 0 - 0x800 0x580
Host receive address 0 - 0x800 0x600