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CCS/CCSTUDIO: CDC USB open with DSP-BIOS

Part Number: CCSTUDIO

Tool/software: Code Composer Studio

Hi,

I need to use USB Full speed on a C5517 device. I'm using CSL library and I'm trying to let CSL_usbCdcTest work on a DSP-BIOS project.

On this step the project simply set the PLL for a 100MHz system clock and open a CDC USB connection.

I have a main function that I use for the initialization, then the program falls on an idle loop.

I have noticed that if I run CSL_usbCdcTest as a function inside the main (before the idle loop starts) I correctly see the enumeration on the PC. If I move the CSL_usbCdcTest  outside the main and I let it run as a GEL function the enumeration fails.

Why is this happening?

Do you have examples or suggestions about how to use CSL_usbCdcTest  on a DSP Bios project?

Thank you

Stefano