Page 318 - MDP2020-1

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HAL_GPIO_WritePin(DHT11_GPIO_Port, DHT11_Pin, GPIO_PIN_SET);
Delay_microsec(20);

while(HAL_GPIO_ReadPin(DHT11_GPIO_Port,DHT11_Pin) == 0){

Delay_microsec(1);
cnt++;
if(cnt > 100)
return 0;

}
cnt = 0;
while(HAL_GPIO_ReadPin(DHT11_GPIO_Port,DHT11_Pin) == 1){
Delay_microsec(1);
cnt++;
if(cnt > 100)

return 0;
}

for(i=0;i<40;i++)

{
cnt = 0;
while(HAL_GPIO_ReadPin(DHT11_GPIO_Port,DHT11_Pin) == 0){}
while(HAL_GPIO_ReadPin(DHT11_GPIO_Port,DHT11_Pin) == 1){
Delay_microsec(1);
cnt++;

}

data[i/8]<<=1;
data[i/8]|=(cnt>52);
}

return data[0]&&(data[4]==data[0]+data[1]+data[2]+data[3]);
}

void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart)

{

HAL_UART_Receive_IT(&huart2,receive_data,2);
}
/* USER CODE END 0 */

/**