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LPC2138
TFT+ATmega16显示proteus仿真(TFT+ATmega16 display proteus simulation)
- 2014-01-04 00:56:41下载
- 积分：1
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temperature-TPY
MSP430g2553使用ds18b20进行多点测温的c代码，此为ccs5.1的编写工程文件(MSP430g2553 use ds18b20 c code for multi-point temperature measurement, this ccs5.1 the preparation of engineering documents)
- 2012-10-03 22:36:02下载
- 积分：1
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ABBot_10
Boe bot line detection source code
- 2010-08-11 23:48:02下载
- 积分：1
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1.STM32F105_CAN双机通信
说明： can 双机调试通过，stm32f105 MCU 使用的hawerlib，可以使用usb转can设备监控数据的发送。(Can dual computer debugging passed, STM32F105 MCU USES the Hawerlib, you can use USB can device to monitor the transmission of data.)
- 2020-07-16 16:27:55下载
- 积分：1
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MAX7219点阵驱动程序
说明： keil4 89c52
MAX7219点阵原理图.pdf
MAX7219英文.pdf
MAX7219中文.pdf
MAX7219.uvproj
max7219.hex(keil4 89c52
MAX7219Lattice schematic diagram.pdf
MAX7219EN.pdf
MAX7219CN.pdf
MAX7219.uvproj
max7219.hex)
- 2020-06-24 11:20:02下载
- 积分：1
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STC--Electric-bike-scheme-
单片机STC12C5404 本程序为无刷电机48V30A三相6拍智能版本-PCB上Q孔P14口对地后开电门锁系统将自动进入64种相序接法自动识别功能。带有AD霍尔数据采集鉴相，STC无刷清单及说明，STC做板文件，STC_sch，STCt贴片图等等全套文件，非常有价值。(MCU STC12C5404 This procedure take intelligence of 48 v30a three-phase brushless motor 6 version- P14 hole on PCB Q of driving electric door lock system will be automatically entered into after the 64 kinds of phase sequence connection automatic identification function. With AD data acquisition phase, hall on STC brushless list and instructions, do board files on STC, STC_sch, STCt patch figure and so on a full set of file, very valuable.)
- 2016-10-19 17:22:28下载
- 积分：1
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STM32F429_CAN12
说明： STM32F429 CAN1和CAN2同时使用，均可收发收据，可触发接收中断，亲测可用(Stm32f429 Can1 and can2 are used at the same time, which can send and receive receipts, trigger receiving interruption, and can be used for personal testing)
- 2021-04-25 17:18:46下载
- 积分：1
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2.4G无线通信
基于StC89C52单片机的nRF24L01驱动及应用程序， 已经调试成功(Driver and application program of nRF24L01 based on STC89C52 MCU has been debugged successfully.)
- 2020-06-21 17:00:01下载
- 积分：1
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uip---udpok
AVR单片机实现RTL8019AS的UDP通讯，由UIP修改而来。(UDP by MCU(AVR))
- 2010-08-15 23:23:02下载
- 积分：1
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shuanglushuzihecheng
摘要
电能表作为用电量的测量工具广泛的应用于各种场合。在电能表校表系统中,需要的最基本的输入信号源是高精度双路正弦信号源,并要求可对其频率、相位、幅值进行调节,来对电能表进行校准。
基于单片机的程控信号源设计，运用数字调相、数字调幅和数字调频等技术，要求实现相位、幅度、频率的高精度程控调节。本文设计了一种利用锁相环频率合成技术和数字波形合成技术组成的程控低频正弦波信号发生器，并给出了调幅、调频、调相的实用电路，频率调节通过改变8253计数器的分频系数来实现；相位调节由51单片机预置计数器的计数初值来完成，幅度的调整通过改变DAC1210II的参考电压来实现，使频率分辨率达0.01Hz,相位调节精度达0.1°，并介绍电路中的主要芯的功能及使用。输出正弦波频率和幅值的精度高，稳定性好，失真度低，电路简单、可靠、便于程控。
关键词：数字合成信号源；程控；调幅；调频；移相；
(Abstract
Meter consumption as the size of the measurement tool is widely used in various occasions. In single-phase power meter verify system, the most basic needs of the input signal is the source of two-way high-precision sine signal source, and may request its frequency, phase, amplitude in a certain step to adjust to the imitate of the actual electricity load with a right meter calibration.
Design of the programmable signal supply controlled source，which based on the MCU，including digital phase adjustment，distal amplitude adjustment，digital frequency adjustment etc．The system should achieve high quality digital adjustment of phase, amplitude and frequency. This paper describes the use of a PLL frequency synthesizer technology, and digital wave form synthesis technology consisting of program-controlled low-frequency sine wave signal issued devices, and applies the amplitude， frequency， phase of practical circuit. Frequency can be adjusted through a change in the 8253 counter-frequ)
- 2021-04-08 20:19:00下载
- 积分：1
