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speaker
- 蜂鸣器在单片机上的应用,汇编语言,附原理图及说明学习文档 蜂鸣器的正极性的一端联接到5V电源上面,另一端联接到三极管的集电极,三极管的基级由单片机的P2.4管脚通过一个与非门来控制, 用户可以通过程序控制P2.4管脚的置低和置高来使蜂鸣器发出声音和关闭。 蜂鸣器的声音大小及音调可以通过调整P2.4管脚的置高时间及输出的波形进行控制,这一点可以在调试程序的时候来试验。-On the buzzer in single-chip applications, assembly language, wit
isd2560
- ISD录放音,可根据自己的需要设置多段录放音段,大小可以设置-ISD audio playback, can according to their need to set multiple recording section, size can be set
suofang
- 完成图像的比例缩放,可以按照需要完成对图像的大小设置 -To complete the image scaling, image size is set in accordance with the need to complete
O5
- 1,定义一个类Card,该类的对象代表一张扑克牌。要求包含三个属性:点数,花色,和大小王信息(三者均为enum类型)。要求扑克牌能比较大小,比较规则为: a,大王最大,小王其次。 b,其他的扑克牌按点数大小来比,点数相同的按花色来比(花色从大到小的顺序是:黑桃>红桃>梅花>方块)。 2,为Card类写一个静态方法: static TreeSet[] dispatch(int players,int reservers),要求用一副扑克牌随机的为多人发牌,并预留给
clock
- 1、取原来的中断向量,保存并且设置新的中断向量; 2、在设置光标的位置,然后读取系统时间,保存数据; 3、用了2个子函数分别实现输出时间和符号‘:’; 4、设置驻留区的大小,然后结束并驻留内存。 -1, take the original interrupt vector, saved and set a new interrupt vector 2, set the cursor position, and then reads the system time, save t
uploadify
- 图片附件上传,实现批量上传图片,设置图片大小范围,设置图片个数,保存图片名称到后台数据库。-Image Attachment Upload achieve bulk upload pictures, set the picture size range, set the picture number, save the image name to the back-end database.
COMP
- 设存储单元A和B各有一带符号字节数,比较大小和正负,要求将较大数送RES1单元;如果有负数,将一个负数送RES2,否则RES2送-1-Set storage units A and B each have a signed bytes, compare the size and negative, require a large number of delivery RES1 unit if negative, would send a negative RES2, otherwise RES
8051-programme
- 本專題是對於溫度、CO2設備來偵測,溫度、CO2經由熱敏電阻及MG811轉成電壓後,利用A/D 轉換電路將其訊號傳入8051,並顯示溫度、CO2濃度及設定值在LCD上,使其量測的溫度、CO2濃度數值大小能判斷目前狀態是理想,進而對其做加熱、冷卻及排氣的動作。-This topic is for temperature, CO2 equipment to detect temperature, CO2 via a thermistor and MG811 turn into a voltage,
VCPPeluosi
- 比较经典的俄罗斯方块游戏VC++的源代码,它可以设置区域大小,也就是方块几行几列,游戏难度级别,方块样式选择等,小时候我们经常玩的游戏,现在还有不少在玩。 截图如上,VC6下通过编译。-More classic Tetris game VC++ source code, which can be set area size, which is the block several odd row, the game difficulty level, block style choice, a c
representations
- The paper deals with representations of the safe states set in the Banker s problem. Using a Petri Net model we derive formulas for this set (SAFE) directly and for its (smaller) minimal elements set MIN. Moreover, we partition the set MIN into s
