Document Reference No.: ES_000005
USB2-F-7x01 Full-Speed USB to 1-Port CANbus Adapter User Guide
Version 1.3
Clearance No.: ES#02
©2008 - 2010 EasySYNC Ltd.
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4
Application Programming Interfaces
4.1
ASCII commands
The following ASCII commands provide a means of utilizing an interactive terminal program, or
communication through a standard COM or TTY port. Unrecognized commands return the ASCII BELL
character (0x07). Some useful settings for a terminal program to assist in the human readability of
command responses are:
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Echo typed characters locally – the USB2-F-7x01 does not echo characters.
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Append line feeds to incoming line ends.
-
With the use of the FTDI FT245 USB-FIFO interface, serial port bit rate settings are not typically
necessary; however, some terminal programs may yield unpredictable results with slow rates.
Set the COM port to the highest available bit rate. The USB2-F-7x01 will maintain the most
efficient data rate available.
The CANbus messages are received at all times by default and sent to the host through the FTDI FT245
USB-FIFO interface immediately. Firmware version 2.2 supports sustained read of CAN messages sent
1ms apart as well as a bursts of up to 100 CAN messages sent 50us apart.