Smartfusion2 Usb Otg Controller Acting As Usb Host; Figure 10. Micro-A To B Usb Cable With Mass Storage At The End B; Figure 11. Usb Host Mode Results - Microsemi SmartFusion2 Demo Manual

USB OTG Capabilities of SmartFusion2
2.5.2

SmartFusion2 USB OTG Controller Acting as USB Host

The following steps describe how to use the SmartFusion2 USB OTG Controller as a USB host:
1. Unplug the Micro-B to A USB cable from the P1 connector of the SmartFusion2 Security Evaluation
Kit board.
2. Insert the Micro-A to B USB cable with USB mass storage device at the B type end of the cable, as
shown in
3. Connect the Micro-A end of the Micro-A to B USB cable to the P1 connector of the SmartFusion2
Security Evaluation Kit board.
The SmartFusion2 USB OTG controller switches to the USB Host mode and detects the connected USB
mass storage device to perform transactions as the USB host. The application enumerates the USB
mass storage device and reads all file names on the USB drive to display the list on the serial terminal
emulation program, as shown in
Figure 10 • Micro-A to B USB Cable with Mass Storage at the End B
Figure 11 • USB Host Mode Results
To verify the USB OTG functionality again repeat the process of the SmartFusion2 USB OTG
controller acting as a USB device and USB host.
Figure 10. Ensure that the mass storage device is preformatted.
Figure 11.
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