-
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
-
这是一个针对AVR单片机的串口编程，里面有原理图，加上串口源码。针对型号为ATMEGA128的AVR单片机使用。其它的芯片，如果寄存器一样也可套用。
这是一个针对AVR单片机的串口编程，里面有原理图，加上串口源码。针对型号为ATMEGA128的AVR单片机使用。其它的芯片，如果寄存器一样也可套用。-This is a serial port for AVR MCU programming, which has schematic diagram, together with the serial code. ATmega128 model for single-chip using the AVR. Other chips, the same as if the register can also be applied.
- 2022-01-22 15:58:40下载
- 积分：1
-
sd card procedures, the above records the SD card reader to write in detail the...
sd卡的程序，上面记录了SD卡的详细读卡写卡方式，适合51单片机或者其他-sd card procedures, the above records the SD card reader to write in detail the way cards for 51 single-chip or other
- 2022-05-28 03:48:59下载
- 积分：1
-
LED数码管的简单控制程序，7彩变化。有按键可以选择模式。
LED数码管的简单控制程序，7彩变化。有按键可以选择模式。-LED digital tube simple control procedures, 7 color change. Button has the option mode.
- 2023-04-23 03:25:02下载
- 积分：1
-
简单的12864（控制器ST7920）液晶显示模块并行和总线方式控制c语言源程序...
简单的12864（控制器ST7920）液晶显示模块并行和总线方式控制c语言源程序-Simple 12864 (controller ST7920) liquid crystal display modules in parallel and bus control c language source code
- 2022-03-13 11:38:27下载
- 积分：1
-
avr之IDE驱动程序
avr之IDE驱动程序-avr Zhi IDE driver
- 2022-06-01 16:11:38下载
- 积分：1
-
CAN Bus System Design Theory and Application of Chinese data, a comprehensive an...
CAN总线原理和应用系统设计中文资料，全面系统得论述CAN的技术规范和国际标准-CAN Bus System Design Theory and Application of Chinese data, a comprehensive and systematic exposition CAN technical specifications and international standards
- 2022-01-25 18:24:06下载
- 积分：1
-
ARM程序，基于MT8880的自动打电话程序，在LPC2103开发板上测试成功。...
ARM程序，基于MT8880的自动打电话程序，在LPC2103开发板上测试成功。-ARM procedures MT8880-based automatic call procedures to test the success of LPC2103 development board.
- 2022-03-26 01:05:44下载
- 积分：1
-
提供51无防真器下内存监测程序(pc软件为"超级终端")
提供51无防真器下内存监测程序(pc软件为"超级终端")-provide no real defense for the next memory monitoring procedures (pc software for the "Super Terminal")
- 2022-06-20 03:01:10下载
- 积分：1
-
a micro
一个微型打印机C51控制程序，希望对大家有用-a micro-C51 printer control procedures in the hope that it may be useful to
- 2023-06-27 09:45:03下载
- 积分：1
