title: STM32 I2C1 Start bit not set on SR1 register
body: <p>I am trying to program the stm32 to talk to my i2c EEprom, but it seems like everytime I say:</p>
  
  <pre><code>I2C_GenerateSTART(I2C1, ENABLE);
  while( !(I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_MODE_SELECT)) );  the code hangs here
  </code></pre>
  
  <p>I went through with the debugger and I found that the SR1 bit 0 flag (which is the start bit generated flag) is not set which is why the code hangs. I can see in the oscilloscope that the start bit was generated and this works sometimes. it usually breaks when I tried to do several writes in a row. I checked the HW is everything looks fine I checked the frequency that I am running on the i2c bus it is 100Khz well within the 24lc1025 eeprom.</p>
  
  <p>any ideas,</p>
  
  <p>thanks </p>