I am trying to interface DHT22 sensor with STM32F411RE board. When initially I interfaced I was able to see data (i.e., Temp and Humidity) I am giving 3.3v power supply, data pin connected to PA0 ground and set clock frequency to 50MHZ using Internal oscillator. But when now I am trying to check values, I am not able to get values I haven't change anything in code still I am facing this issue. The code is stuck in while loop of DHT22_response function where it is waiting for pin to be low. I have attached coding file please can anyone help me regarding this??
