title: How to find value of APB1 Clock in STM32F429
body: <p>Can anyone tell me how to find the APB1 clock frequency of STM32F429?
  And how to calculate the Baud Rate of STM32F429.</p>
  
  <p>P.S...Please dont tell to refer Reference Manual,as those works are already done and I would like to tell me the exact value of APB1 Clock frequency</p>
  
  <p>Thankyou</p>