本程序是用于高速冲床上的送料控制程序，一个较为简单的89C51中断、定时计数器应用程序，已经调试成功，今天为大家出点力，也希望能在以后的学习中能得到大家的帮助。...

89S51 与数码管显示器以及键盘SW 对应引脚的联机为： P0.0-------------------------数码管显示器的a脚 P0.1-------------------------数码管显示器的b脚 P0.2-------------------------数码管显示器的c脚 P0.3-------------------------数码管显示器的d脚 P0.4-------------------------数码管显示器的e脚 P0.5-------------------------数码管显示器的f脚 P0.6-------------------------数码管显示器的g脚 P0.7-------------------------数码管显示器的dp脚 ； P2.2-------------------------数码管显示器1的驱动脚 P2.3-------------------------数码管显示器2的驱动脚 P2.4-------------------------数码管显示器3的驱动脚 P2.5-------------------------数码管显示器4的驱动脚 P2.6-------------------------数码管显示器5的驱动脚 P2.7-------------------------数码管显示器6的驱动脚 ； P2.2-------------------------键盘SW1 P2.3-------------------------键盘SW2 P2.4-------------------------键盘SW3 P2.5-------------------------键盘SW4 P2.6-------------------------键盘SW5 P2.7-------------------------键盘SW6-devised with the digital control display and keyboard SW corresponding pin online : P0.0------------------------- Digital Display of a foot P0 .1--------

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,片选接到p1.5 复位端 p1.4 中断端接到 int0 82c250工作在斜率模式下 ，RS 接51k电阻到地。 2，SJA1000与82C250的接口，逻辑上为SJA1000输出0（显性位），表现为低点平输出给82C250，则82C250输出 差分的低电平。SJA1000输出1（隐性位），表现为高电平或悬空输出给82C250，则82C250输出悬空状态。 3,周立功的中SJA_BCANCONF.ASM中对输出控制寄存器 的TX0的输出 极性的位的定义不对。 还有里面定义有接收错误标志码，不知道何时用。-, The election received a P1.5-chip client p1.4 interrupt reset int0 82c250 client received in the slope mode, RS then 51k resistor to ground. 2, SJA1000 with the 82C250 interface, logic for SJA1000 Output 0 (dominant bit), showing low level output to the 82C250, while the low-level differential output 82C250. SJA1000 Output 1 (recessive), and the performance of the output is high or left vacant to the 82C250, the vacant state 82C250 output. 3, Zhou Ligong in the SJA_BCANCONF.ASM of output control register TX0 output polarity bit the definition of wrong. Inside the definition also has to receive error flag code, I do not know when to use.

在电子技术中，频率是最基本的参数之一，又与许多电参量的测量方案、测量结果都有十分密切的关系，因此频率的测量就显得更为重要。测量频率的方法有多种,其中电子计数器测量频率具有精度高、使用方便、测量迅速，以及便于实现测量过程自动化等优点，是频率测量的重要手段之一。在本次毕业设计中我们选择使用单片机来制作数字频率计，并在实际制作中采用了直接测频法。利用延时产生的时基门控信号来控制闸门，通过在单位时间内计数器记录下的脉冲个数计算出输入信号的频率，最终送入LCD中显示。这样制作出来的频率计不仅可以满足设计题目的参数要求，而且具有了单片机的稳定性和成熟性，且控制能力强，是一种低成本，高可靠的设计方案。-In electronic technology, the frequency is one of the most basic parameters, but also with a number of electrical parameters of the measurement program, the measurement results have a very close relationship between the frequency of measurement, therefore it is even more important. Measurement of the frequency of a number of means, electronic measurement of the frequency counter with high precision, easy to use, rapid measurement, and measurement is easy to realize the advantages of process automation is an important means of measuring the frequency of one. Graduates in this design we have chosen to make use of single-chip digital frequency meter, and used in the actual production of a direct

几个微机原理的芯片接口代码-tenets of several computer chip interface code

多功能跑马灯程序。包括按键、灯 等 。适合初学者联系。有详细介绍。-multifunctional 5,250 procedures. Including the keys, and so on. For beginners links. A detailed briefing.

mpc563 串行通讯程序和串行外围设备通讯程序代码-mpc563 program code

ADuc812的各种功能程序的例子!很有参考价值

小动画心 动画显示提示信息"按任意键进入"， 然后就没有任何反映了, 不知道该怎么办了?-small animation heart animation shows a message "by Anykey enter," and then there would be no point to the fact that I do not know how the Office