CCS: GUI Composer v2, comport handshaking.

Michael Koval27

Tool/software: Code Composer Studio

Hello, I jprogrammed my device to send 0x55 ,0x55,0x55,0x55,0x55 and six's byte 0x01, or 0x02 and try to connect to Serial_tutorial_binary example project from GUI COmposer gallery. But it is not connected, though from source of custom codec it is clear, that it is enough. I checked out in usual terminal and assured that device sends this sequence. What is the problem? May bt GUI app needs some handshaking, may be it is finding comport with another number? I can not understand. Please, explain.

over 7 years ago

0 Patrick Chuong over 7 years ago

TI__Genius 16370 points

Hi Michael,
What device are you using? It might have multiple COM Port and you need to select the COM Port in your app's menu.

Patrick

0 Michael Koval27 over 7 years ago in reply to Patrick Chuong

Intellectual 990 points

I try to write my own GUI application to solar_hv_dc_ac 28034 CPU. How do you arrange menu for multiple COM PORTS?

0 Patrick Chuong over 7 years ago in reply to Michael Koval27

TI__Genius 16370 points

The number of com port options in the dialog is depended on the number of USB UART transport that you have in your application. Open the Project Properties dialog and add an additional USB UART transport in the Target communication setting page. When you preview your app, you should be able to select comport for each transport/model. See attach screen capture for the dialog.

0 Michael Koval27 over 7 years ago in reply to Patrick Chuong

Intellectual 990 points

So for any combination COMport/BaudRate I have to create its own transport? And , when I create project it does not give me possibility to setup in advance nor comport, nor baudrate: http://joxi.ru/D2P3lweIqBzgzm

0 Patrick Chuong over 7 years ago in reply to Michael Koval27

TI__Genius 16370 points

Yes, each comport/baudrate is mapped to a model/transport. You can bind your widget(s) to a model where data is transfer between the host application and your device.

0 Michael Koval27 over 7 years ago in reply to Patrick Chuong

Intellectual 990 points

It does not allow me to set up even one comport : http://joxi.ru/VrwbRkYI7jYeeA .

0 Michael Koval27 over 7 years ago in reply to Michael Koval27

Intellectual 990 points

It turned out, that even without this options in properties (comport and baudrate) it is set up menu Serial Port in application automatically( if I add 'Option' widget). But why button OK is unavailable for choosing com port? How I have to satisfy her to be submitted? http://joxi.ru/bmo05lYh37vJa2

0 Patrick Chuong over 7 years ago in reply to Michael Koval27

TI__Genius 16370 points

In the project dialog, the comport/baudrate setting is used to connect to the device when you press the CONNECT button. This is used for check whether you can successfully make a connection from host to target device. The spinner progress is stuck, perhaps you have the preview open and the comport is in use. Try closing the preview tab.

When you preview the application, you can than select the comport. GUI Composer should remember your comport selection when you preview.

You are presented with two comport settings, one in the project properties and one in the application that you are developing. In the project setting, it is used to test your comport connect and perhaps see the data coming from the comport in the console tab. The comport needs to be select in the application independent of the selection in the project's properties dialog.

0 Patrick Chuong over 7 years ago in reply to Michael Koval27

TI__Genius 16370 points

did you add a model to the transport?

0 Michael Koval27 over 7 years ago in reply to Patrick Chuong

Intellectual 990 points

Hello, Patrick. Thank you for explanation, yes it turned out that settings of project of comport mislead and are not connected with settings of comport in app, which are automatically added when you add Option widget to project. But I discovered very strange situation: when my PC has only genuine COMPORTs ( not virtual USB-COMPORT), application finds them but does not allow to connect. When I plug in usb-com converter on FTDI chip, application allows button OK in choosing any comports ( genuine and virtual). When I unplug com-usb device - button OK becomes again forbidden. After this experiment I recieved access to comport communication ( through usb-com converter) and application works. Only JS log blames that it can not find /target/target.xml file - it is not exist in app, but hopefully it does not matter for communication. What the problem with genuine com-ports?

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CCS: GUI Composer v2, comport handshaking.