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

4.6 USB Host

„Hardware Setting

¾Check if 2,3 of J-USB- and J-USB+ short

¾Connect with a USB mouse

„Flowchart

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

	Start
SystemInit ( )	Initialize system	Enumeration	USB_Handler ( )
	clock
main ( )	Initialize timer	Mouse data	USBF_Handler ( )
		process
			get_mouse_data ( )
minihost_init( )	Init USB host	Display mouse
		data
			Main()

Figure 4-9: USB Host Sample Code Flowchart

„Usage

1)Make the hardware setting

2)Enable definition “Debug” in the code

3)Run the code.

4)Move the USB mouse, and watch the mouse position in the terminal IO window as following figure. (Debug viewer window in Keil IDE)

Figure 4-10: USB Mouse Position Display

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