void SetupClock(void)
{     
   RCC_DeInit ();
   RCC_HSICmd(ENABLE);
   while (RCC_GetFlagStatus(RCC_FLAG_HSIRDY) == RESET){};     
   RCC_HCLKConfig   (RCC_SYSCLK_Div1);   /* HCLK   = SYSCLK                */     
   RCC_PCLK2Config  (RCC_HCLK_Div2);     /* PCLK2  = HCLK/2                */     
   RCC_PCLK1Config  (RCC_HCLK_Div2);     /* PCLK1  = HCLK/2                */     
   /* PLLCLK = 16MHz * 6 / 3 = 32 MHz                                      */     
   RCC_PLLConfig (RCC_PLLSource_HSI, RCC_PLLMul_6, RCC_PLLDiv_3);     
   RCC_PLLCmd (ENABLE);                  /* Enable PLL                     */     
   while (RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET){}
//   RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK);     
//   while (RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET){}
_LED_YELLOW_ON; //!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
   RCC->CFGR &= ~RCC_CFGR_SW;
   RCC->CFGR |= RCC_CFGR_SW_PLL;
   while ((RCC->CFGR & RCC_CFGR_SWS) != RCC_CFGR_SWS_PLL){__NOP();}
_LED_YELLOW_OFF; //!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
   /* Enable USART1,2,3 clock                                        */   
   RCC_APB2PeriphClockCmd (RCC_APB2Periph_USART1, ENABLE);
   RCC_APB1PeriphClockCmd (RCC_APB1Periph_USART2 | RCC_APB1Periph_USART3, ENABLE);
}

RCC_SYSCLKConfig(RCC_SYSCLKSource_HSI);     
   while (RCC_GetFlagStatus(RCC_FLAG_HSIRDY) == RESET){}

USART_InitStructure.USART_WordLength          = USART_WordLength_8b;
USART_InitStructure.USART_StopBits  = USART_StopBits_1;         
USART_InitStructure.USART_Parity    = USART_Parity_Even;         

USART_InitStructure.USART_WordLength          = USART_WordLength_9b;