Introduction - If you have any usage issues, please Google them yourself
1, first of all, using serial port will USART1 connected to the PC
Press the reset button after 2, download via JLIK S4, program began to run
3, LD1 twinkle TFT display blue string "FireBull RTC example"
4, the super terminal print information Please Set Hours "type" 12"
Please print information Set Minutes "type" 10"
Please print information Set Seconds "type" 10"
Complete the human-computer interaction, the output Time Time: 12:10:10