Introduction - If you have any usage issues, please Google them yourself
The program was completed eight digital tube dynamic display, the display is 30H- 37H in digital. Digital control for the digital control of the sun to provide segment code and bit select signal from the P0 port, P0 port output latch by a section of code and Choice latches, latch control signal segment of code from the P1.3 , Choice latch control signal from P1.2.