能较为准确的计时并将时钟、分钟、秒钟显示到数码管上，此实验是利用DSP的定时器做时钟，并将时钟、分钟、秒钟显示到数码管上。编写程序时先编写定时器初始化程序，运用DSP定时器来定时计数，并通过定时器中断服务程序刷新数码管。其硬件连接原理图和I/O端口地址译码请参考实验五输入输出模块中的数码显示输出模块。-Can be more accurate timing and the clock, minutes, seconds display to digital control, this exper

51单片机数码管计数器ASM小程序,可实现到0~99秒的计数功能，并且启动时长按也可计数-51 single digital counter ASM applet can be realized to 0 ~ 99 seconds of counting function, and starts long press can also be counted

用8088/86 控制8259 可编程中断控制器，实现对外部中断的响应和处理。要求程序中对每次中断进行计数，并将计数结果显示在LED 数码管上。-With the 8088/86 control 8259a programmable interrupt controller, to achieve external interrupt response and handling. Requirements for each interrupt the program to count and c