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由8051组成的单片机系统通常情况下，P0口分时复用作为地址、数据总线，P2口提供A15...
由8051组成的单片机系统通常情况下，P0口分时复用作为地址、数据总线，P2口提供A15-A8即高8位地址，P3口用作第二功能，只有P1口通常用作I/0口。P1口是8位准双向口，它的每一位都可独立地定义为输入或输出，因此既可作为8位的并行I/O口，也可作为8位的输入输出端。当工作在输入方式时，对应位的锁存器必须先置1,才能正确地读到引脚上的信号,否则,执行读引脚指令时,若对应位的锁存器的值为0，读的结果永远为0。-By 8051, composed of single-chip microcomputer system under normal circumstances, P0 timeshare I reuse as address, data bus, P2 I provide A15-A8 high eight address, P3 mouth for the second function, I usually only P1 for I/0 I. P1 I was eight quasi-two-way port, it can be independent of each and every defined as input or output, it can be used as 8-bit parallel I/O port, can also be used as 8-bit input and output side. When the work in the input, the corresponding bit latch must first buy one in order to correctly read the signal pin, or pin the implementation of reading instruction, if the corresponding bit latch the value of 0, Reading the results of Forever to 0.
- 2023-08-10 04:55:03下载
- 积分：1
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STC12C5402
STC12C5402型
- 2022-01-28 16:31:07下载
- 积分：1
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ST7920 driver for the LCD driver corresponding explicit operation
ST7920驱动程序，便于相应驱动的液晶的显式操作-ST7920 driver for the LCD driver corresponding explicit operation
- 2022-03-21 11:02:16下载
- 积分：1
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两个7段共阳LCD显示器，可以调整倒计时时间
两个7段共阳LCD显示器，可以调整倒计时时间-A total of two 7-yang LCD display, you can adjust the countdown time
- 2022-03-11 16:03:48下载
- 积分：1
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C source development, LCD on the C programming can be used as reference
C源程序开发，关于液晶显示的C程序编写，可以作为参考 -C source development, LCD on the C programming can be used as reference
- 2023-06-22 21:45:03下载
- 积分：1
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液晶显示模块与单片机接口技术
液晶显示模块与单片机接口技术-LCD module and microcontroller interface technology
- 2022-03-03 17:09:25下载
- 积分：1
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IAR for AVR是ATMEL公司推荐的AVR开发环境，其代码编译效率比GCC和ICC高25 到50 ，因此深受欢迎，但其相关的资料却很少，我上传一些能快速...
IAR for AVR是ATMEL公司推荐的AVR开发环境，其代码编译效率比GCC和ICC高25 到50 ，因此深受欢迎，但其相关的资料却很少，我上传一些能快速上手的资料（包括IAR的扩展关键字，GCC AVR的代码如何移植到IAR等等）-IAR for AVR is ATMEL" s AVR recommended development environment, its code is more efficient than GCC and ICC to compile a 25 to 50 , so very popular, but very little relevant information, I would upload the information that can quickly get started (including the expansion of IAR keyword, GCC AVR code for how to migrate to IAR, etc.)
- 2022-06-16 22:06:49下载
- 积分：1
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16x16单片机仿真LED点阵有卷动和移动两种闪法随便用
16x16单片机仿真LED点阵有卷动和移动两种闪法随便用-16x16 single-chip simulation scrolling LED dot-matrix There are two types of flash method and mobile casual use
- 2022-04-22 04:16:36下载
- 积分：1
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了解红外C51解码程序，主要为东芝技术。
很好理解的红外解码C51程序，主要针对东芝TC9012。只要稍加改动也可以应用于NEC型号.-Good understanding of the infrared C51 decoding procedures, mainly for Toshiba TC9012. As long as the modified model can also be applied to NEC.
- 2022-06-17 06:17:39下载
- 积分：1
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本系统参照片上系统的设计架构、采用FPGA与SPCE061A相结合的方法，以SPCE061A单片机为进程控制和任务调度核心；FPGA做为外围扩展，内部自建系统总...
本系统参照片上系统的设计架构、采用FPGA与SPCE061A相结合的方法，以SPCE061A单片机为进程控制和任务调度核心；FPGA做为外围扩展，内部自建系统总线，地址译码采用全译码方式。FPGA内部建有DDS控制器，单片机通过系统总线向规定的存储单元中送入正弦表；然后DDS控制器以设定的频率，自动循环扫描，生成高精度，高稳定的5Hz基准测量信号。-The system with reference to the design of system-on-chip architecture, used a combination of FPGA and SPCE061A approach to SPCE061A Singlechip for process control and scheduling core mission FPGA for external expansion, internal self-system bus, address decoding using the entire translated code approach. DDS has built internal FPGA controller, microcontroller through the system bus to the provisions of the storage unit into the sine table DDS controller and then to set the frequency, automatic cycle of scanning, to generate high precision and high stability of the baseline measurement 5Hz signal.
- 2023-06-10 08:35:03下载
- 积分：1
