题目：利用条件运算符的嵌套来完成此题：学习成绩>=90分的同学用A表示，60...

综合运用8259A,8253,8255A三个接口芯片， 编程使六个交通灯，按交通灯变化规律，循环点亮或熄灭。

本程序是一个代有带纠错码的串行通信子程序 功能：发送方将数据连发三此，接受方按位进行最大概率纠错。程序返回时，若标志位ERR返回为1，则表示 通信失败；否则。接收结果放在A寄存器中。 很简单很经典的例子。有资源大家共享哦-This procedure is an error-correcting code generation has to bring the serial communication subroutine functions: sender data Lianfa three of this, the recipient in accordance with the maximum probability of bit error correction. Procedures for the return, if the flag ERR return for one, it means that communications failed otherwise. Receive the results on the A register. Very simple classic example. U.S. has resources to share, oh

我刚写好的，已调试成功，HT1621的汇编和一键多功能的汇编。-I have just written has been successfully debug, HT1621 one compilation and the compilation of multi-function keys.

This a com program

8259A实验程序,可以实现中断实验，已经在星眼上运行了，是非常不错的-this is 8259a

用汇编语言,并且递归求菲波那契函数FIB(N)---(N from 1 to 24) (huangyujie)-assembly language, and for recursive function Fibonacci FIB (N )---( N from 1 to 24) (huangyujie)

基于8951的计数器，带四个LED显示，通过脉冲计数，每计数一个下降沿

实现9层电梯控制 功能如下：1，先假设没上楼之前，楼层运行看不到(没图形），可以当做随机看待。 2。当在某层按电梯开关后，在屏幕显示电梯停到该指定楼层的图形状态。 3。随后可以按想去的楼层，在屏幕显示电梯运动过程，， 4，可选择是否还执行本程序（坐电梯）-9 realize elevator control layer functions as follows: 1, first assume that no public housing, before running the floor can not see (no graphics) can be viewed as random. 2. When a layer switch by the elevator, the elevator stopped on the screen display to the graphics state designated floors. 3. Then may want to go to the floor, in the screen display elevator movement process, 4, can choose whether the implementation of this program (elevator)

USART异步串行发送例程，适合初学者学习！-USART asynchronous serial send routine, suitable for beginners to learn!

中断列表(3) 423K-suspended list (3) 423K