SuperSpeed Device Design By Example by Hyde John

Author:Hyde, John [Hyde, John]
Language: eng
Format: epub, pdf
Published: 2014-08-30T16:00:00+00:00

Load and run CDC_Example.img file using the USB Control Center and this will create a new virtual com port. You now have two virtual com ports, one connected to the FX3 and one connected to the debug console. Attach a terminal program such as Clear Terminal to each of them and note that characters typed in one window appear in the other. If you set DirectConnect to 0 then you will get a lot more messages in the Debug Window. Not all that exciting but this has big implications for the next example.

Debug Console Over USB

I called the previous example a CDC Interface because we can now “copy and paste” this code into another project and easily make a composite device. This example combines a Cypress BulkLoop firmware example with a CDC interface as shown in Figure 6.11. We will also add code to redirect the Debug Console to the CDC interface.

Figure 6.11 This example has two independent interfaces

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