61单片机模拟8080总线时序的程序，很多接口芯片的时序就是这个...

一个用PIC16F84A做的音乐门铃源程序-A PIC16F84A to do with music doorbell source

10位三线da转换驱动程序,通过单片机模拟spi-ten_bit three da converter，spi drive the da converter

飞思卡尔智能车测试程序,仅仅是调试程序，没有完全通过-The test program for freescaleic interligentcar.

=== =时钟20:6=== === == 应先初始化状态寄存器 tx1714 EQU 7FFH PA EQU 05H PB EQU 06H PC EQU 07H PD EQU 20H IAR EQU 00H 间接寻址寄存器 TMR0 EQU 01H 定时器 STATUS EQU 03H 状态寄存器 BSR EQU 04H bank选择寄存器 PORTA EQU 05H I/0端口寄存器 PORTB EQU 06H I/0端口寄存器 PORTC EQU 07H I/0端口寄存器 PORTD EQU 20H I/0端口寄存器 PULL EQU 21H PULL-High上拉寄存器 WAKEUP EQU 22H 唤醒控制寄存器－－被用来设定watchdog允许和禁止 IRQM EQU 23H 中断屏蔽寄存器 IRQF EQU 24H 中断标志寄存器 WDTSEL EQU 25H -=== === = clock 20 : 6 === === === == should first register initialization state tx1714 EQU 7FFH EQU PA PB EQU 05H 06H 07H PC EQU PD EQU 20H IAR E QU 00H indirectly addressable registers TMR0 EQU 01H timer STATUS EQU Mr send state BSR EQU-deposit bank in the 04H choice Register PORTA EQU 05H I/O ports Register P ORTB EQU 06H I/O ports Register PORTC EQU 07H I/O ports Register POR TD EQU 20H I/O ports Register PULL EQU 21H PULL-High pull Register WAKEUP EQU 22H awaken control registers-- were used to set watchdog allowed and prohi

本设计以P89V51RD2FN单片机为电动小车的控制核心，采用MSA-LD2.0倾角传感器实时测量跷跷板的倾斜角，用ST198光电传感器检测黑色引导线监测小车运动。光电传感器和倾角传感器模块把实时测量信号馈送至单片机，利用专用细分芯片TA8435H驱动步进电机，以脉宽调制式斩波方式对步进电机步进角进行细分，控制和调节小车速度。采用增量式PID控制算法确保小车能够达到平衡；用RT128×64M液晶显示时间、角度等参数。经测试表明：小车各项性能指标达到设计要求，能够实现30秒内小车行驶到规定点，并保持跷跷板平衡；在跷跷板一端配重可调整的情况下，小车也能自动找到平衡点并保持跷跷板平衡。-The single-chip design for the electric car P89V51RD2FN control of the core, the MSA-LD2.0 seesaw angle sensor real-time measurement of the tilt angle, the detection of black ST198 photoelectric sensor to monitor vehicle movement and guide lines.Photoelectric sensors and angle sensors in real-time measurement module to feed the signal to the microcontroller, using a dedicated sub-chip stepper motor driver TA8435H to PWM chopper-type stepper motor on the sub-stepping angle, control and regulation vehicle speed. The use of incremental PID control algorithm to ensure that the car can achieve balance with LCD RT128 × 64M time, angle and other parameters.After the test showed that: the performance car

2051解码GPS数据装置的源代码,有详细的中文注释，是初次接触GPS解码开发人员不错的参考资料-GPS data decoding device 2051 source code, the Chinese have detailed notes, is the initial contact with GPS decoder developers good reference

遥控数字钟应用程序，应用于多种数字钟接口，可以遥控设备，省力。自制LED电子钟在很多电子报刊杂志上都可以见到，但大多数在断电后都要重新设置时间等 参数，给使用带来很多不便。也有用后备电池作为备用电源的，但往往体积较大。本文介绍 的LED电子钟克服了以往的弊端，而且采用了家电通用的红外遥控器进行控制，方便使用。 有一路闹铃输出，可以通过遥控器设置闹铃时间及允许与否。-digital clock remote control applications, digital clock used in a variety of interface, remote-control equipment, effort. Homemade LED electronic bell in many electronic newspapers and magazines can all, but most of the power outages after the re setup time and other parameters to use in many ways. Also useful as a standby battery backup power, but often larger. This paper introduces the LED electronic clock to overcome the shortcomings of the past, and the use of common household appliances infrared remote control, and ease of use. A way Alarms output, the remote control can set the alarm time and allow it or not.

该源码采用标准c编写，使用SPI方式访问SD卡。-c prepared using standard, the use of SPI mode visit the SD Card.

用89C51 控制nRf 905收发 C源代码-with 89C51 905 transceiver control nRf C source code