这是本人调用small rtos51的函数来仿真写的基本代码

HT24 系列的EEPROM 总共8 个管脚，三个为芯片地址脚A0、A1、A2，在单片机对它进行操作时，从SDA 输入A0、A1、A2 数据和芯片外部A0、A1、A2 所接地址需一一对应。一个为芯片写保护脚WP，WP 脚接低电平时，芯片可进行读写操作；WP 脚接高时，芯片只可进行读，不可进行写。 另外两个管脚为电源脚VCC，VSS。 用单片机对HT24 系列的EEPROM 进行控制时，HT24 系列的EEPROM 的外部管脚VCC、VSS、WP、A0、A1、A2 根据需要，对应接上，SDA、SCL 接到单片机控制脚上。-HT24 Series EEPROM total of 8 pins, three pins for the chip address A0, A1, A2, in the microcontroller to operate it, from SDA input A0, A1, A2, and chip external data A0, A1, A2 of the Then one correspondence address must be in. One for the chip, write-protect pin WP, WP feet then low, the chip can be read and write operations WP pin is high then, the chip can only be read, not write. The other two pins for the power pin VCC, VSS. With the microcontroller on the HT24 Series EEPROM control when, HT24 Series EEPROM external pin VCC, VSS, WP, A0, A1, A2 according to the needs of the corresponding connected, SDA, SCL receives SCM control feet .

该设备是一款基于AVR mega16L单片机的电子书阅读器，它除具有传统的阅读电子资源功能外，还能通过PS2接口与PC键盘连接，使用普通PC键盘输入信息，进行文本录入；使用LCD12864液晶作为显示器，它还可以用VB专门为之编写的下载软件通过串口下载TXT格式的文本资源。电子书资源存储在AVR公司生产的AT45DB021B闪速存储器，它有2M存储空间，可满足一般用户需要，当然也可升级为大容量存储器。 该设备功能强大，将电子书阅读器发挥到了极致，能满足用户特殊需要。 -The device is a single chip based on the AVR mega16L e-book reader, which in addition to the traditional functions of reading electronic resources, but also through the PS2 interface to connect with the PC keyboard, use an ordinary PC keyboard input information, the text input use LCD12864 LCD as a display, it can be prepared by specialized VB download software through the serial port to download TXT format text resources. E-book resources are stored in the AVR produced AT45DB021B flash memory, it has 2M storage space to meet the needs of general users, of course, can also be upgraded to a large-capacity memory. The device is powerful and will play an eBook reader to the extreme, and to meet the special needs of users.

胡家荣（hjr7581@163.com）用KEIL写的的几个LCD、串口等方面的程序-Hu Jia-rong (hjr7581@163.com) with KEIL wrote several LCD, Serial procedures etc.

CAN总线调试通过的程序，SJA1000芯片的Peli CAN模式下的C51源程序-CAN bus debug the procedure adopted, SJA1000 chip Peli CAN mode source of C51

modbus 通讯程序 物理层rs-485-Modbus communication procedures rs-485 physical layer

avrm16控制ds18b20的使用，使用avrstudio进行编译-DS18B20 use avrm16 control, the use of avrstudio compile

利用脉冲控制伺服电机运转，伺服电机频率通过改变定时器初值来控制-The use of pulsed operation of servo motor control, servo motors by changing the timer frequency to control the initial value

本程序实现了MSP430读写SD卡，MSP430对fat文件系统的操作-This program implements MSP430 to read and write SD card, MSP430 to the fat file system operations

用C51做的计算器源码，矩阵键盘，液晶显示，C和ASM混合编程，PROTUSE自带的例程-C51 calculator to do with source code, matrix keyboard, LCD, C and ASM programming mixed, PROTUSE built-in routines

485通讯的底层驱动,完成485网络数据收发功能-The bottom of drive 485 to complete the network data transceiver function 485