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Description: 这是一个用单片机控制CAN总线芯片SJA1000传输的C51程序,89C51单片机,sja1000.h是内部寄存器的定义,main.c是传输主程序-MCU control chip SJA1000 CAN transmission C51 procedures, 89C51 microcontroller, sja1000.h internal register is the definition of transmission main program main.c
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Size: 3134 |
Author: 李亚林 |
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Description: 这是一个用单片机控制CAN总线芯片SJA1000传输的C51程序,89C51单片机,sja1000.h是内部寄存器的定义,main.c是传输主程序-MCU control chip SJA1000 CAN transmission C51 procedures, 89C51 microcontroller, sja1000.h internal register is the definition of transmission main program main.c
Platform: |
Size: 3072 |
Author: 李亚林 |
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Description: 结合无线通信技术和USB技术的优点,提出一种基于无线USB技术的数据采集系统。该系统运用高速转换器AD7874、USB接口芯片PDIUSBD12、89C51微处理器和射频收发器nRF401构建数据采集电路和无线USB接口。该设计成功取代有线数据采集系统复杂的连线,并且提高了数据采集的抗干扰性、灵活性。文中对无线A/D转换电路、无线USB接口的设计、89C51内部固件程序及USB应用程序编写进行了阐述。-Combination of wireless communications technology and the advantages of USB technology, a technology based on wireless USB data acquisition system. The system is the use of high-speed converter AD7874, USB interface chip PDIUSBD12, 89C51 microprocessor and RF transceiver nRF401 to build data acquisition circuit and wireless USB interface. The success of the design to replace the wired data acquisition system of complex connections, and improve the data acquisition antijamming, flexibility. Text of wireless A/D conversion circuit, a wireless USB interface design, 89C51 internal USB firmware application procedures and the preparation are described.
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Size: 163840 |
Author: |
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Description: SD卡的89C51程序，可以将数据写入SD卡内部，并进行读取。-89C51 procedure SD cards can write data to the internal SD card and reader.
Platform: |
Size: 22528 |
Author: zhangqiang |
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Description: 89C51最小系统调试。
单片机的最小化系统是指单片机能正常工作所必须的外围元件，主要可以分成时钟电路和复位电路，我们采用的是AT89C51芯片，它内部自带4K的FLASH程序存储器，一般情况下，这4K的存储空间足够我们使用，所以我们将AT89C51芯片的第31脚固定接高电平（PCB画板时已经接死），所以我们只用芯片内部的4K程序存储器。-The 89 C51 minimum system commissioning.
Chip minimize system is a single chip can work properly the periphery of the main components, must be can be divided into the clock circuit and reset circuit, we use is AT89C51 chip, it bring their own internal 4 K FLASH program memory, usually, the 4 K storage space enough, so we will use our feet of fixed AT89C51 chip 31 by high level (PCB board has already meet dead), so we only inside the chip program memory 4 K.
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Size: 52224 |
Author: 黎娇 |
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Description: 步进电机的调速一般是改变输入步进电机的脉冲的频率来实现步进电机的调速，因为步进电机每给一个脉冲就转动一个固定的角度，这样就可以通过控制步进电机的一个脉冲到下一个脉冲的时间间隔来改变脉冲的频率，延时的长短来具体控制步进角来改变电机的转速，从而实现步进电机的调速。在本设计方案中采用AT89C51型单片机内部的定时器改变CP脉冲的频率从而实现对步进电机的转速进行控制，实现电机调速与正反转的功能。-Stepper motor speed control is generally to change the input pulse frequency of the stepper motor stepper motor speed to achieve, because the stepper motor to a pulse on each rotation a fixed angle, so that you can control the stepper motor by a pulse to the next pulse interval to change the pulse frequency, the length of delay to the specific control step angle to change the motor speed in order to achieve the stepper motor speed. Design used in this type of microcontroller AT89C51 CP internal timer to change the frequency of the pulse in order to achieve the speed of the stepper motor to control the motor speed control and reversing function.
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Size: 569344 |
Author: 丽丽 |
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Description: 8路抢答器设计
基于89C51单片机控制，使用Keil-C编译下载
能实现主持人开始，停止功能，8路抢答，倒计时，倒计时喇叭提醒，功能较好
端口定义可以看代码即可看出-This lecture based on single chip set for the design of vies to answer first 8, required on eight different keystroke vies to answer first signal, and through the LED digital display corresponding pipe poems, vies to answer first success through the leds display. Design with two different plan, which plan by external 74 series a chip interrupt signal, scheme 2 by single chip microcomputer timer interrupt achieve internal vies to answer first.
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Size: 1024 |
Author: 陈鸿斌 |
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