2017校内竞赛(直流电阻箱)

所属分类:单片机开发
开发工具:C/C++
文件大小:8611KB
下载次数:19
上传日期:2018-06-24 16:39:43
上 传 者灰飞湮灭
说明:  本次设计的数控直流电阻箱主要由恒定电流源部分、显示部分、键盘部分、电源部分组成。以STM32单片机为核心控制恒流源,恒流源电路由达林顿三极管、高精度运算放大器、采样电阻等组成。通过键盘输入给定值,经D/A转换器将数字信号转换为模拟信号,控制电流。采用电流反馈电路控制精度,经多次调试改进,实现了直流电阻箱的功能。本次设计的数控直流电阻箱较以往的电阻箱相比,其优点在于可操作性强、精度高、体积小、高效节能等优点。适用于作为直流负载的应用场合。
(The numerical control DC resistance box designed mainly consists of constant current source part, display part, keyboard part and power supply part. The constant current source is controlled by STM32 single chip microcomputer. The constant current source circuit is composed of Darlington transistor, high precision operational amplifier and sampling resistor. Through the keyboard input a given value, the D/A converter converts the digital signal into analog signal to control the current. The control precision of the current feedback circuit is improved, and the function of the DC resistance box is realized through many debugging improvements. Compared with the conventional resistance box, the designed DC resistance box has the advantages of strong operability, high accuracy, small size, high efficiency and energy saving. It is suitable for application as DC load.)

文件列表:
2017校内竞赛(直流电阻箱)\2017数控直流电阻箱\CORE\core_cm4.h (109142, 2014-07-17)
2017校内竞赛(直流电阻箱)\2017数控直流电阻箱\CORE\core_cm4_simd.h (22735, 2014-07-17)
2017校内竞赛(直流电阻箱)\2017数控直流电阻箱\CORE\core_cmFunc.h (17146, 2014-07-17)
2017校内竞赛(直流电阻箱)\2017数控直流电阻箱\CORE\core_cmInstr.h (20513, 2014-07-17)
2017校内竞赛(直流电阻箱)\2017数控直流电阻箱\CORE\startup_stm32f40_41xxx.s (29605, 2014-08-02)
2017校内竞赛(直流电阻箱)\2017数控直流电阻箱\FATFS\doc\css_e.css (3248, 2014-01-15)
2017校内竞赛(直流电阻箱)\2017数控直流电阻箱\FATFS\doc\css_j.css (3661, 2014-01-15)
2017校内竞赛(直流电阻箱)\2017数控直流电阻箱\FATFS\doc\img\app1.c (1063, 2013-09-18)
2017校内竞赛(直流电阻箱)\2017数控直流电阻箱\FATFS\doc\img\app2.c (1597, 2013-10-18)
2017校内竞赛(直流电阻箱)\2017数控直流电阻箱\FATFS\doc\img\app3.c (3811, 2014-01-13)
2017校内竞赛(直流电阻箱)\2017数控直流电阻箱\FATFS\doc\img\app4.c (10365, 2014-01-07)
2017校内竞赛(直流电阻箱)\2017数控直流电阻箱\FATFS\doc\img\f1.png (1414, 2011-09-02)
2017校内竞赛(直流电阻箱)\2017数控直流电阻箱\FATFS\doc\img\f2.png (1458, 2007-02-10)
2017校内竞赛(直流电阻箱)\2017数控直流电阻箱\FATFS\doc\img\f3.png (1039, 2007-02-10)
2017校内竞赛(直流电阻箱)\2017数控直流电阻箱\FATFS\doc\img\f4.png (2335, 2008-01-05)
2017校内竞赛(直流电阻箱)\2017数控直流电阻箱\FATFS\doc\img\f5.png (2479, 2008-01-05)
2017校内竞赛(直流电阻箱)\2017数控直流电阻箱\FATFS\doc\img\f6.png (1436, 2010-08-21)
2017校内竞赛(直流电阻箱)\2017数控直流电阻箱\FATFS\doc\img\f7.png (11388, 2013-05-12)
2017校内竞赛(直流电阻箱)\2017数控直流电阻箱\FATFS\doc\img\funcs.png (11421, 2014-02-19)
2017校内竞赛(直流电阻箱)\2017数控直流电阻箱\FATFS\doc\img\layers.png (2401, 2009-03-20)
2017校内竞赛(直流电阻箱)\2017数控直流电阻箱\FATFS\doc\img\layers3.png (2379, 2009-06-13)
2017校内竞赛(直流电阻箱)\2017数控直流电阻箱\FATFS\doc\img\modules.png (7932, 2013-12-27)
2017校内竞赛(直流电阻箱)\2017数控直流电阻箱\FATFS\doc\img\rwtest.png (19068, 2008-10-18)
2017校内竞赛(直流电阻箱)\2017数控直流电阻箱\FATFS\doc\img\rwtest2.png (8153, 2010-09-13)
2017校内竞赛(直流电阻箱)\2017数控直流电阻箱\FATFS\doc\img\rwtest3.png (3011, 2009-06-15)
2017校内竞赛(直流电阻箱)\2017数控直流电阻箱\FATFS\doc\updates.txt (5352, 2014-01-15)
2017校内竞赛(直流电阻箱)\2017数控直流电阻箱\FATFS\exfuns\exfuns.c (3685, 2014-05-15)
2017校内竞赛(直流电阻箱)\2017数控直流电阻箱\FATFS\exfuns\exfuns.h (1417, 2014-05-15)
2017校内竞赛(直流电阻箱)\2017数控直流电阻箱\FATFS\exfuns\fattester.c (7722, 2014-05-15)
2017校内竞赛(直流电阻箱)\2017数控直流电阻箱\FATFS\exfuns\fattester.h (1225, 2014-05-15)
2017校内竞赛(直流电阻箱)\2017数控直流电阻箱\FATFS\exfuns\mycc936.c (5013, 2014-05-15)
2017校内竞赛(直流电阻箱)\2017数控直流电阻箱\FATFS\src\diskio.c (6281, 2014-05-15)
2017校内竞赛(直流电阻箱)\2017数控直流电阻箱\FATFS\src\diskio.h (2567, 2014-01-15)
2017校内竞赛(直流电阻箱)\2017数控直流电阻箱\FATFS\src\ff.c (156270, 2014-01-15)
2017校内竞赛(直流电阻箱)\2017数控直流电阻箱\FATFS\src\ff.h (13169, 2014-01-15)
2017校内竞赛(直流电阻箱)\2017数控直流电阻箱\FATFS\src\ffconf.h (9452, 2014-03-14)
2017校内竞赛(直流电阻箱)\2017数控直流电阻箱\FATFS\src\integer.h (706, 2014-01-15)
2017校内竞赛(直流电阻箱)\2017数控直流电阻箱\FATFS\src\option\cc932.c (249488, 2014-01-15)
2017校内竞赛(直流电阻箱)\2017数控直流电阻箱\FATFS\src\option\cc936.c (724232, 2014-01-15)
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本实验将实现如下功能:开机的时候先检测W25Q128中是否已经存在字库,如果存在,则按次序显示汉字(三种字体都显示)。如果没有,则检测SD卡和文件系统,并查找SYSTEM文件夹下的FONT文件夹,在该文件夹内查找UNIGBK.BIN、GBK12.FON、GBK16.FON和GBK24.FON(这几个文件的由来,我们前面已经介绍了)。在检测到这些文件之后,就开始更新字库,更新完毕才开始显示汉字。通过按按键KEY0,可以强制更新字库。同样我们也是用DS0来指示程序正在运行。 注意: 1,本例程支持12*12/16*16/24*24大小的汉字显示。 2,如果想更新字库,必须自备SD卡一个。 正点原子@ALIENTEK 2014-10-25 广州市星翼电子科技有限公司 电话:020-38271790 传真:020-36773971 购买: http://shop62057469.taobao.com 公司网站:www.alientek.com 技术论坛:www.openedv.com

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