Fujitsu MB9B500 Series user manual USB Function, „ Hardware Setting, „ Flowchart, „ Usage

4.5USB Function

„ Hardware Setting

¾Check if 1,2 of J-USB- and J-USB+ short

¾Check J701 (Short: 5V, Open: 3.3V)

¾Connect with PC via USB cable

„Flowchart

The following flowchart illuminates the procedure to implement a USB mouse, it is not a certain flow of a function, but provides a clue to study and understand the sample code.

	Start
Check ButtonInit(),	Button, USB core,	Bus reset
HIDInit()
	HID initialization
		Configure	Check
			USB_2_IRQHandler()
		Endpoint 0-5
Check	Check Ext INT7
EXTI8_15_IRQHandler()
	occurred?	Get Device, HID
		description
Device has been		Enable Endpoint 5	Check
			HidMouseSendReport()
connected with		interrupt transfer
	Initial Endpoint 0
Host
		Use interrupt transfer to	Check
		communicate with host	USB_1_IRQHandler()

Figure 4-8: USB Function Sample Code Flowchart

„Usage

1)Make the hardware setting.

2)Watch the mouse moving when pressing “Up”, “Down”, “Left”, “Right” buttons.

18