Posted on April 20, 2015 at 04:38/*******************************************************************************
* Function Name : PowerOn
* Description :
* Input : None.
* Output : None.
* Return : USB_SUCCESS.
*******************************************************************************/
RESULT PowerOn(void)
{
#ifndef STM32F10X_CL
uint16_t wRegVal;
/*** cable plugged-in ? ***/
USB_Cable_Config(ENABLE);
/*** CNTR_PWDN = 0 ***/
wRegVal = CNTR_FRES;
_SetCNTR(wRegVal);
/*** CNTR_FRES = 0 ***/
wInterrupt_Mask = 0;
_SetCNTR(wInterrupt_Mask);
/*** Clear pending interrupts ***/
_SetISTR(0);
/*** Set interrupt mask ***/
wInterrupt_Mask = CNTR_RESETM | CNTR_SUSPM | CNTR_WKUPM;
_SetCNTR(wInterrupt_Mask);
#endif /* STM32F10X_CL */
return USB_SUCCESS;
}
Why do we define
#if
n
def STM32F10X_CL. It means that when i define STM32F10X_CL, the program will ignore the body of this function, so i wonder how can the program configure USB Power ON for STM32F10X_CL?
