自己编的C51串口，主要是协议，希望对大家有帮助

单片机51控制硬盘的程序，含读写信息，可参考一下-control procedures on the hard drive containing information literacy, it can make reference to

MSP430驱动DS18B20温度传感器-MSP430 driver DS18B20 Temperature Sensor

AT89C51SND1C方案mp3资料 AT89C51SND1C方案mp3资料-AT89C51SND1C program mp3 program mp3 information AT89C51SND1C mp3 information AT89C51SND1C program information

提供一个小弟的程序,有点笨,请各位看后,不要见笑.-provide a younger procedures, a bit stupid, you see, not laughed at.

ATMEL ARM7有关TWI应用设置的程序,可以在IAR中直接运行-ATMEL ARM7 applications related to TWI programs can be run directly in IAR

DES加密算法的－－51单片机C语言程序-DES encryption algorithm- 51 single-chip C Language Program

时钟芯片DS1302的程序-Clock chip DS1302 procedures

NRF401芯片的C51发送子程序-NRF401 chip C51 sent subroutine

嵌入式系统已经广泛应用于各个科技领域和日常生活的每个角落，由于其本身的特性，使得我们很难发现它的存在。甚至一些从事嵌入式系统开发的科技人员也只知单片机，不知道嵌入式系统。本节从嵌入式系统的定义开始，阐述嵌入式系统的含义、特点等，以使读者加深对嵌入式系统的理解。 -Embedded systems are widely used in various fields of science and technology and everyday life in every corner, due to its own characteristics, making it very difficult for us to discover its existence. Embedded systems and even some involved in the development of scientific and technical personnel are also only single-chip, embedded systems do not know. This section from the beginning of the definition of embedded systems, embedded systems on the meaning, characteristics and so on, in order to enable readers to deepen their understanding of embedded systems.

=== =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