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Checking the speed of FX2 | Cypress Semiconductor

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Checking the speed of FX2

Last Updated: July 03, 2011

How can the firmware check whether the FX2 has enumerated at high-speed or full-speed?


The firmware can use the macro EZUSB_HIGHSPEED() to check whether the FX2 enumerated at full-speed or high-speed. Usage of this is shown in the bulkloop firmware example.

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