SystemClock_Config() function

System Clock Configuration The system Clock is configured as follow : System Clock source = HSE SYSCLK(Hz) = 8000000 HCLK(Hz) = 2000000 AHB Prescaler = 4 APB1 Prescaler = 1 APB2 Prescaler = 1 HSE Frequency(Hz) = 8000000 VDD(V) = 3.3 Main regulator output voltage = Scale1 mode Flash Latency(WS) = 0