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--- en:hardware:avr-can:how_to_use_the_can-usb-terminal [2010/12/30 14:27] – allan.pettai
+++ en:hardware:avr-can:how_to_use_the_can-usb-terminal [2020/07/20 12:00] (current) – external edit 127.0.0.1
@@ Line 1: / Line 1: @@
+====== How to Use the CAN-USB Terminal ======
+The CAN-USB terminal offers a GUI to facilitate communication between PC
+and CAN board via USB. The picture shows the user-interface of the CAN-USB
+terminal. Its purpose is to instruct the CAN board to send CAN-messages with
+a speciﬁed Message ID, but it is also possible to switch the LEDs on the board
+on and off (checkboxes in circle 7).
+{{  :en:hardware:arm-can:terminal3.jpg?500  |Figure 1.19: USB Driver Installation Final Stap}}
+Figure 1.19: USB Driver Installation Final Step
+At ﬁrst it is necessary to choose a port to be connected with by selecting it in the
+"Portname"-combobox in circle 1.  When the program is started, it searches for
+accessible COM-Ports automatically. If the board is connected to the PC after the
+terminal is started, the COM-port has to be searched manually by clicking the
+"get Ports"-button (1). It can be useful to search the port names manually when
+the name of the used port is unknown. By comparing the list in the "Portname"-
+combobox before and after clicking the "get Ports"-button, the needed port name
+will be found easily.
+The next step is to deﬁne the baud rate for the CAN-bus. By default it is set to
+kbps, but rates between 10 kbps and 1 Mbps are available.  It is important
+that every member of the bus uses the same baud rate.
+Now the port can be opened by clicking on the "open"-button.  The CAN-Bus
+will be initialized automatically with the chosen baud rate.  When the port is
+opened the label on the button will change to "close".
+There are two lists (8) to log the transmitted and received messages and to log
+events like opening and closing the port.  After opening the port successfully
+it will be logged in the left list.  In the list on the right side the acknowledge-
+ment from the microcontroller that CAN is initialized is noted.  The "received
+message"-list also logs every CAN-message the controller receives.
+By default the CAN-message-ID is set to 123456 (in HEX). To change it the
+"CAN-message-ID"-textbox (4) has to be changed.
+To send the desired CAN-message, it simply has to be entered in the "Message"-
+textbox.  After this is done either the "send"-button (6) can be clicked or the
+RETURN-key on the keyboard can be pressed.  The message will be logged in
+the right list. NOTE: the message has to be hexadecimal (!) and the maximum
+length is 8 bytes.
+To check the correct functioning of the connection, there are three checkboxes (7)
+to switch the LEDs (red, green, yellow) on.