Introducing to STM32 ADC programming. Part2

After we had a quick overview of STM32 ADC peripheral we can start digging deeper in to specifics. In order to understand simple things lets go with simplest case – single conversion mode. In this mode ADC does one conversion and then stops. After ADC conversion result is stored in to 16-bit ADC_DR data register (remember that conversion result is 12-bit), then End of Conversion (EOC) flag is set and interrupt is generated if EOCIE flag is set. Same situation is if injected channel is converted. The difference is that result is stored in to corresponding ADC_DRJx register, JEOC flag is set and interrupt generated if JEOCIE flag is set. In our example we are going to measure the internal temperature sensor value and send it using USART. Temperature sensor … Continue reading