/*******************************************************************************
* Function Name  : Set_System
* Description    : Configures Main system clocks & power
* Input          : None.
* Return         : None.
*******************************************************************************/
void Set_System(void)
{
  /*!< At this stage the microcontroller clock setting is already configured,
       this is done through SystemInit() function which is called from startup
       file (startup_stm32f10x_xx.s) before to branch to application main.
       To reconfigure the default setting of SystemInit() function, refer to

       system_stm32f10x.c file
     */

//  GPIO_InitTypeDef GPIO_InitStructure;
    //EXTI_InitTypeDef EXTI_InitStructure;
    
//    for(b = 0; b < 1425; b++);            //b < 257   b < 1426
    
    /* Enable USB_DISCONNECT GPIO clock */
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIO_DISCONNECT, ENABLE);

  /* Configure USB pull-up pin */
//  GPIO_InitStructure.GPIO_Pin = USB_DISCONNECT_PIN;
//  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_2MHz;
//  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
//  GPIO_Init(USB_DISCONNECT, &GPIO_InitStructure);
    
    GPIOB->CRH &= !(GPIO_CRH_CNF15_0 | GPIO_CRH_CNF15_1);
    GPIOB->CRH = GPIO_CRH_MODE15_1;
    GPIOB->BSRR = GPIO_BSRR_BS15;
    
    
    
//  /* Configure the EXTI line 18 connected internally to the USB IP */
//  EXTI_ClearITPendingBit(EXTI_Line18);
//  EXTI_InitStructure.EXTI_Line = EXTI_Line18;
//  EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising;
//  EXTI_InitStructure.EXTI_LineCmd = ENABLE;
//  EXTI_Init(&EXTI_InitStructure);

    EXTI->IMR = 0x00040000;
    EXTI->EMR = 0x00000000;
    EXTI->RTSR = 0x00040000;
    EXTI->FTSR = 0x00000000;
}


//void Delay_ms(uint32_t ms)
//{
//    // В stm32f10x_conf.h установлена частота кварца для расчёта
//    volatile uint32_t nCount;
//    RCC_ClocksTypeDef RCC_Clocks;
//    RCC_GetClocksFreq (&RCC_Clocks);

//    nCount=(RCC_Clocks.HCLK_Frequency/10000)*ms;
//    for (; nCount!=0; nCount--);
//}