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Description: 使用51模拟I2C总线对CH450完成对6位LED数码管显示的操作。使用LED驱动芯片可分担51的工作量。-The use of 51 analog I2C bus on the CH450 completed six LED digital tube display operation. The use of LED Driver IC 51 may share the workload.
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Size: 19456 |
Author: 豫 |
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Description: 软件模拟IIC总线,关于51系列MCU的(C语言)-Software simulation of IIC bus, on the 51 series MCU
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Size: 153600 |
Author: alexwan |
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Description: 标准80C51单片机模拟I2C总线的主机程序.根据PHILIPS I2C总线协议编写。-Standard 80C51 single-chip simulation of I2C Bus host procedures. PHILIPS I2C bus protocol in accordance with the preparation.
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Size: 3072 |
Author: 赵忠 |
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Description: 独创的使用51单片机模拟I2C总线协议
每个功能函数都有详细的说明，并付有一个
实例应用-Original use of 51 single-chip simulation of I2C bus protocol for each function are detailed descriptions and have to pay an example of the application
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Size: 3072 |
Author: lizhuosheng |
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Description: 用单片机的I/O口模拟I2C协议
I2C用IO模拟程序网上范例最多的就是51的程序了,这些范例的正确性无需怀疑.但是如果直接以它为蓝本将它"AVR化",一不留神,就会有点问题了.
这要从I2C的硬件规范和AVR及51单片机的IO口说起.I2C要求SCL,SDA二线都有 线与 功能,即I2C驱动口应该是 漏极开路 电路,其高电平的维持是靠上拉电阻来实现的, 而低电平则需要驱动口的强下拉能力.
51单片机IO口正好完全符合这个特性.写起I2C驱动颇为得心应手.但是AVR的IO口强大了,它输出的高电平是实实在在的高电平,而不是靠什么上拉电阻来提供,只有10mA都不到的电流!于是如果直接使用 PORTB_Bit0 = 1这样的操作,就不能满足I2C的线与功能了,如果此时有别的设备要将SCL或者SDA拉低,那么结果就是二个IO口打架,谁赢谁输不得而知,时间长了,多半是两败俱伤,芯片发热吧.
当然AVR的IO口自然有办法满足I2C的电气特性要求,不就是不能输出1么,那么用它的高阻状态即可(DDRB_Bit0=0,PORTB_Bit0=0即可),要输出0么(DDRB_Bit0=1,PORTB_Bit0=0).
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Size: 1576960 |
Author: sanke |
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Description: 实现51系列单片机模拟I2C总线同24C04之间传输信息-51 Series single-chip analog I2C bus with transmission of information between the 24C04
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Size: 1024 |
Author: 文超 |
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Description: 51单片机的I2C接口的AD及DA转换器的应用，内带硬件接线图片-51 I2C Interface MCU AD and DA converter application, in connection with hardware image
Platform: |
Size: 37888 |
Author: 丁佳 |
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Description: 51系列单片机的i2c总线通信的C语言程序。-51 Series MCU i2c bus communication of the C language program.
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Size: 1024 |
Author: ray |
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Description: /* 51系列单片机在使用时，有时需要模拟I2C总线， */
/* 这里举出一个实例（读写串行EEPROM芯片at2402） */-/* 51 Series single-chip, when used, is sometimes necessary to simulate I2C bus,*//* here to cite a concrete example (read and write serial EEPROM chip at2402)* /
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Size: 14336 |
Author: 王先生 |
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Description: 本程序实现利用51单片机实现I2C总线通信，包括相应的电路图。-This procedure to achieve the realization of the use of 51 single-chip I2C bus communication, including the corresponding circuit diagram.
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Size: 18432 |
Author: lili |
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Description: 设计一电子钟，采用CPU为51系列单片机，用C51或ASM51编写软件，给出SCH原理图和软件清单（要求有功能注释），系统要求如下：
1． 4个按键，分别为设置、+、-、->可以循环时间设置。
2． 采用I2C 8583时钟芯片（可以查相关资料）。
3． 8个8段LED显示。显示内容：时-分-秒。
4． 8个按键分别可以模拟外部8个故障点。
5． EEPROM保存最近100个外部故障数据。
6． RS232上位机接口。
该系统软件完成以下功能：
1． 上电时电子种方式显示当前时间。
2． 设置按键进入设置状态，可以重新设置新时间值，结果写入8583。设置完成后电子种方式显示当前时间。
3． 实时监测外部8个故障点，一旦故障记录其发生时间和恢复时间。
4． 上位机传来命令字0xaa向上位机发送实时检测结果。（自定义通讯协议）。
-err
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Size: 58368 |
Author: 徐诚 |
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Description: 基于51单片机的温度和电压采集与循环显示的控制程序，其中温度传感器为LMA95，采用I2C总线传输，显示器为8段LED数码管-51 single-chip-based temperature and voltage of the cycle of acquisition and display of the control procedures, including temperature sensors for LMA95, using I2C bus transmission, display for the 8 LED digital tube
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Size: 8192 |
Author: 胡斌 |
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Description: 具体介绍了51单片机的I2C
有详细的注释-Details of the 51 single-chip I2C detailed notes
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Size: 2048 |
Author: 骆子酉 |
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Description: 51单片机I2C读写EEPROM的汇编语言实现
带I2C时序，注释详细！-51 I2C ASM
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Size: 2048 |
Author: yinbin |
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Description: iic总线驱动芯片的程序
51单片机测试通过-iic bus driver chip microcontroller program tested 51
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Size: 50176 |
Author: 张子健 |
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Description: 51系列单片机，I2C程序，串口，键盘检测，秒表-51 Series Microcontroller, I2C procedures, serial, keyboard detection, stopwatch
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Size: 5120 |
Author: 陈文生 |
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Description: 51单片机中利用I2C总线实现E2ROM存储器的驱动-51 I2C-bus using single chip memory of the drive to achieve E2ROM
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Size: 33792 |
Author: 小兵 |
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Description: I2C转UART，51单片机普通IO口模拟I2C从机，解决UART不够的问题-I2C switch to UART, 51 Microprocessor Analog IO port I2C slave address the problem of insufficient UART
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Size: 47104 |
Author: xingao |
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Description: 介绍了I2C的相关知识，及如何用51单片机开发一个I2C系统，对初学单片机的人很用帮助-Describes the I2C related knowledge, and how to develop a single chip with 51 I2C system, the microcontroller for beginners who are used to help
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Size: 64512 |
Author: 付友 |
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Description: 51单片机全部模块的程序，注释详细，入门提高必备，从流水灯开始，到ad，pwm，i2c由简如深。-All 51 microcontroller module procedures, detailed notes, entry must improve, starting from the light water to the ad, pwm, i2c from simple, such as deep.
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Size: 1228800 |
Author: kingerm |
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