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[SCM] PCF8591 DL : 0: 芯片PCF8951共有四个A/D输入通道：AD0，AD1，AD2，AD3,分别与四个电位器(R1,R2,R3,R4)连接，用以调节电位器的输出电压。其中AD0通道既可测量电位器输出电压，也可用于测量从J1插座输入的外接电压，须用开关J2加以选择。J4插座提供由PCF8591输出的时钟方波信号。SAA1064驱动四个数码管显示一路AD转换后得到的数据。-PCF8951 chip, there are four A/D input channels: AD0, AD1, AD2, AD3, respectively, with four potentiometers (R1, R2, R3, R4) connected to regulate the output voltage potential. AD0 channel which can be measured potentiometer output voltage can also be used to measure the input from the J1 socket external voltage, to be used to select switch J2. J4 socket output from the PCF8591 clock square wave signal. SAA1064 drivers of four digital display along after AD conversion data.
Date : 2025-12-20 Size : 44kb User : 李起伟
[SCM] DS1307 DL : 0: 通过串口数据设置可调整时钟程序 1、程序说明：该例程演示了如何通过串口数据设定时钟,采用数码管显示。 2、操作： 1、该串口1可以设置为通过USB口输出或者通过DB9口输出。如果使用USB输出，请使用USB线将开发板连接至电脑，如果使用DB9输出，请使用DB9直连线将开发板的J25插座连接至电脑. 同时将跳线插座J28跳到TxD1和RxD1. 打开STC-ISP下载软件中的串口助手，选择相应串口号，选择波特率9600，8位数据位，1位停止位，无校验。点打开串口接收缓冲区选择“HEX模式” 发送缓冲区选择“HEX模式” 从串口助手发送区输入数据格式如下 aa 55 n1 n2 n3 n4 n5 n6 n7 xx 其中aa 55为两个开始数据，xx为校验数据， n1 n2 n3 n4 n5 n6 n7为秒、分、时、星期、日、月、年的数据。检验数据为aa+55+n1+n2+n3+n4+n5+n6+n7的结果。十六进制数据，例如 aa 55 00 25 09 05 01 05 15 4d点击发送，发送数据后，如果数据合法，时钟将重新设置。 -The adjustable clock program through the serial data 1. Program Description: This example demonstrates how to set the clock via the serial data, the use of digital display. 2: 1, 1 serial port that can be set to output via USB port or via DB9 port output. If you use a USB output, use a USB cable connected to the computer board, If you use a DB9 output, use a DB9 straight cable to connect the socket J25 development board to the computer. While the socket J28 jumper to jump TxD1 and RxD1. Open the STC-ISP download software serial assistant, the corresponding serial number, Select the baud rate of 9600, 8 data bits, 1 stop bit, no parity. Point to open the serial port receive buffer HEX mode Transmit Buffer Select HEX mode Input data serial format to send aides area below aa 55 n1 n2 n3 n4 n5 n6 n7 xx Wherein aa 55 to start two data, xx To verify that data, n1 n2 n3 n4 n5 n6 n7 seconds, minutes, hours, day, date, month, and year of data. Test data
Date : 2025-12-20 Size : 107kb User : 科恩电子
[SCM] com DL : 0: 电脑串口接收DS18B20温度测试程序 1、程序说明：该例程演示了单片机采集温度，并将温度值发送到电脑的测试程序, 2、实验操作 1、将跳线插座J11的跳线帽调至TDQ端。 2、将跳线插座J28的跳线帽跳到TxD1和RxD1。打开STC-ISP下载软件中的串口助手，选择相应串口号，选择波特率9600，8位数据位，1位停止位，无校验。点打开串口接收缓冲区选择“文本模式” 发送缓冲区选择“文本模式” - PC serial port to receive DS18B20 temperature test program 1. Program Description: This example demonstrates the single-chip collecting temperature and the temperature value Sent to the computer test program, 2, experimental operation 1, the jumper socket J11 jumper cap adjusted TDQ end. 2, the jumper socket J28 jumpers to jump TxD1 and RxD1. Open the STC-ISP download software serial assistant, the corresponding serial number, Select the baud rate of 9600, 8 data bits, 1 stop bit, no parity. Point to open the serial port receive buffer Text Mode Transmit Buffer Select Text Mode
Date : 2025-12-20 Size : 64kb User : 科恩电子