Cypress CY3684 - Ezusb_Susp(); Ezusb

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42 EZ-USB Development Kit User Guide, Doc. # 001-66390 Rev. *D

EZ-USB Firmware Frameworks

5.4.2.4 EZUSB_Susp()

void EZUSB_Susp(void)

This function suspends the processor in response to a USB suspend event. This function will not

return until the suspend is cleared by a USB bus resume or a wake-up event on the EZUSB wake-up

pin. If a suspend event is not pending, this function will return immediately.

5.4.2.5 EZUSB_Resume()

void EZUSB_Resume(void)

This function generates the K-state on the USB bus required for a USB device remote wake-up. This

function should be called following a USB suspend. It automatically determines if the wake-up is

result of a USB resume or a remote wake-up and generates the K-state accordingly.

5.4.2.6 I

C Routines

void EZUSB_InitI2C(void);

BOOL EZUSB_WriteI2C_(BYTE addr, BYTE length, BYTE xdata *dat);

BOOL EZUSB_ReadI2C_(BYTE addr, BYTE length, BYTE xdata *dat);

BOOL EZUSB_WriteI2C(BYTE addr, BYTE length, BYTE xdata *dat);

BOOL EZUSB_ReadI2C(BYTE addr, BYTE length, BYTE xdata *dat);

void EZUSB_WaitForEEPROMWrite(BYTE addr);

These functions automate access to I

C devices (such as the EEPROM), 7-segment display and

buttons on the DVK board. See the vend_ax and dev_io firmware examples for details on using

these functions.

Cypress CY3684 - Ezusb_Susp(); Ezusb_Resume(); I2 C Routines