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定时器2相关例程，包含定时器的运用，0-99计时，18b20的运用。(Timer 2 related routines, including the use of timers, 0-99 timing, 18B20 application.)

Application client / server Server Appplication

This is the Datasheet for P89LPC9401 Philips

说明：  i2c驱动，可用于驱动具有i2c接口的存储芯片(i2c-driven, can be used to drive with a i2c interface memory chips)

该程序是基于51单片机的矩阵键盘程序，单片机采用对键盘行列分别扫描的方法，实现按键的检测。(The program is 51 microcontroller-based matrix keyboard program the microcontroller using the method of scanning the keyboard ranks to achieve the detection of key.)

说明：  实验器材: MiniSTM32F103开发板V3版本 实验目的: 学习VS1053的使用,实现一个简单的MP3. 硬件资源: 1,DS0(连接在PA8) 2,串口1(波特率:9600,PA9/PA10连接在板载USB转串口芯片CH340上面) 3,ALIENTEK 2.8/3.5/4.3/7寸TFTLCD模块(通过GPIO驱动,连接关系见lcd.h) 4,W25Q64(SPI FLASH芯片,连接在SPI1上) 5,按键KEY0(PC5)/KEY1(PA15)/KEY_UP(PA0,也称之为WK_UP) 5,SD卡,通过SPI1连接 6,ATK-VS1053模块与STM32芯片连接关系为(请按如下接线连接Mini板和MP3模块): ATK-VS1053模块----------STM32芯片 VS_SCK ----------- PA5 VS_MISO ------------ PA6 VS_MOSI ------------ PA7 VS_RST ------------ PA11 VS_XDCS ----------- PA4 VS_XCS ----------- PA8 VS_DREQ ------------ PA12 5V ------------ 5V GND ------------ GND(Laboratory equipment: MiniSTM32F103 Development Board V3 Version The purpose of the experiment is: Learn the use of VS1053 and implement a simple MP3. Hardware resources: 1, DS0 (connected to PA8) 2. Serial port 1 (baud rate: 9600, PA9/PA10 connected on board USB to serial chip CH340) 3, ALIENTEK 2.8/3.5/4.3/7 inch TFTLCD module (driven by GPIO, connection relationship see lcd.h) 4, W25Q64 (SPI FLASH chip, connected to SPI 1) 5. Keyboard KEY0 (PC5)/KEY1 (PA15)/KEY_UP (PA0, also known as WK_UP) 5, SD card, connected by SPI1 6. The connection relationship between ATK-VS1053 module and STM32 chip is as follows (please connect Mini board and MP3 module according to the following wiring): ATK-VS1053 Module - ----- STM32 Chip VS_SCK------------- PA5 VS_MISO---------------- PA6 VS_MOSI---------------- PA7 VS_RST---------------- PA11 VS_XDCS------------- PA4 VS_XCS--------------- PA8 VS_DREQ---------------- PA12 5V--------------- 5V GND--GND)

说明：  51单片机，ds18b20温湿度传感器，温湿度值通过LCD1602显示。(51 single chip computer, DS18B20 temperature and humidity sensor, temperature and humidity value through LCD1602 display.)

说明：  STM32F103C8T6双机通过TJA1050实现CAN通信，在原有工控板开发程序基础上增加了一点注解以及通过OLED显示效果，串口打印，实测已调通。(Stm32f103c8t6 dual computer realizes can communication through tja1050. Based on the original development program of industrial control board, a little annotation is added and OLED display effect, serial port printing and actual measurement have been adjusted.)

数码管闪烁显示0~9，便于初学者理解数码管显示原理，很经典~(Digital tube twinkle show 0 ~ 9, facilitate beginners understand digital pipe display principle, it was a classic ~ )

使用STC51所带的红外接收模块实现红外功能，并且在1602上面有一个简单的交互。(The infrared function is implemented using the infrared receiver module of the STC51, and there is a simple interaction on the 1602.)