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TLC2543是TI公司的12位串行模數轉換器,使用開關電容逐次逼近技術完成A/D轉換過程。由于是串行輸入結構,能夠節省51系列單片機I/O資源;且價格適中,分辨率較高,因此在儀器儀表中有較為廣泛的應用。
TLC2543的特點
(1)12位分辯率A/D轉換器;
(2)在工作溫度范圍內10μs轉換時間;
(3)11個模擬輸入通道;
(4)3路內置自測試方式;
(5)采樣率為66kbps;
(6)線性誤差±1LSBmax;
(7)有轉換結束輸出EOC;
(8)具有單、雙極性輸出;
(9)可編程的MSB或LSB前導;
(10)可編程輸出數據長度。
TLC2543的引腳排列及說明
TLC2543有兩種封裝形式:DB、DW或N封裝以及FN封裝,這兩種封裝的引腳排列如圖1,引腳說明見表1
TLC2543電路圖和程序欣賞
#include<reg52.h>
#include<intrins.h>
#define uchar unsigned char
#define uint unsigned int
sbit clock=P1^0; sbit d_in=P1^1;
sbit d_out=P1^2;
sbit _cs=P1^3;
uchar a1,b1,c1,d1;
float sum,sum1;
double sum_final1;
double sum_final;
uchar duan[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f};
uchar wei[]={0xf7,0xfb,0xfd,0xfe};
void delay(unsigned char b) //50us
{
unsigned char a;
for(;b>0;b--)
for(a=22;a>0;a--);
}
void display(uchar a,uchar b,uchar c,uchar d)
{
P0=duan[a]|0x80;
P2=wei[0];
delay(5);
P2=0xff;
P0=duan[b];
P2=wei[1];
delay(5);
P2=0xff;
P0=duan[c];
P2=wei[2];
delay(5);
P2=0xff;
P0=duan[d];
P2=wei[3];
delay(5);
P2=0xff;
}
uint read(uchar port)
{
uchar i,al=0,ah=0;
unsigned long ad;
clock=0;
_cs=0;
port<<=4;
for(i=0;i<4;i++)
{
d_in=port&0x80;
clock=1;
clock=0;
port<<=1;
}
d_in=0;
for(i=0;i<8;i++)
{
clock=1;
clock=0;
}
_cs=1;
delay(5);
_cs=0;
for(i=0;i<4;i++)
{
clock=1;
ah<<=1;
if(d_out)ah|=0x01;
clock=0;
}
for(i=0;i<8;i++)
{
clock=1;
al<<=1;
if(d_out) al|=0x01;
clock=0;
}
_cs=1;
ad=(uint)ah;
ad<<=8;
ad|=al;
return(ad);
}
void main()
{
uchar j;
sum=0;sum1=0;
sum_final=0;
sum_final1=0;
while(1)
{
for(j=0;j<128;j++)
{
sum1+=read(1);
display(a1,b1,c1,d1);
}
sum=sum1/128;
sum1=0;
sum_final1=(sum/4095)*5;
sum_final=sum_final1*1000;
a1=(int)sum_final/1000;
b1=(int)sum_final%1000/100;
c1=(int)sum_final%1000%100/10;
d1=(int)sum_final%10;
display(a1,b1,c1,d1);
}
}
標簽:
2543
TLC
上傳時間:
2013-11-19
上傳用戶:shen1230
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#include<iom16v.h>
#include<macros.h>
#define uint unsigned int
#define uchar unsigned char
uint a,b,c,d=0;
void delay(c)
{ for for(a=0;a<c;a++)
for(b=0;b<12;b++);
};
uchar tab[]={
0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,
標簽:
AVR
單片機
數碼管
上傳時間:
2013-10-21
上傳用戶:13788529953
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The RT9005A/B is a dual-output Linear regulator for DDR-SDRAM VDDQ supply and termination voltage VTT supply.
標簽:
9005
datasheet
RT
上傳時間:
2013-11-13
上傳用戶:lmq0059
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The RT9018A/B is a high performance positive voltage regulator designed for use in applications requining very low Input voltage and very low dropout voltage at up to 3A(peak).
標簽:
9018
datasheet
RT
上傳時間:
2013-10-10
上傳用戶:geshaowei
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C++完美演繹 經典算法 如 /* 頭文件:my_Include.h */ #include <stdio.h> /* 展開C語言的內建函數指令 */ #define PI 3.1415926 /* 宏常量,在稍后章節再詳解 */ #define circle(radius) (PI*radius*radius) /* 宏函數,圓的面積 */ /* 將比較數值大小的函數寫在自編include文件內 */ int show_big_or_small (int a,int b,int c) { int tmp if (a>b) { tmp = a a = b b = tmp } if (b>c) { tmp = b b = c c = tmp } if (a>b) { tmp = a a = b b = tmp } printf("由小至大排序之后的結果:%d %d %d\n", a, b, c) } 程序執行結果: 由小至大排序之后的結果:1 2 3 可將內建函數的include文件展開在自編的include文件中 圓圈的面積是=201.0619264
標簽:
my_Include
include
define
3.141
上傳時間:
2014-01-17
上傳用戶:epson850
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數字運算,判斷一個數是否接近素數
A Niven number is a number such that the sum of its digits divides itself. For example, 111 is a Niven number because the sum of its digits is 3, which divides 111. We can also specify a number in another base b, and a number in base b is a Niven number if the sum of its digits divides its value.
Given b (2 <= b <= 10) and a number in base b, determine whether it is a Niven number or not.
Input
Each line of input contains the base b, followed by a string of digits representing a positive integer in that base. There are no leading zeroes. The input is terminated by a line consisting of 0 alone.
Output
For each case, print "yes" on a line if the given number is a Niven number, and "no" otherwise.
Sample Input
10 111
2 110
10 123
6 1000
8 2314
0
Sample Output
yes
yes
no
yes
no
標簽:
數字
運算
上傳時間:
2015-05-21
上傳用戶:daguda
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電力系統在臺穩定計算式電力系統不正常運行方式的一種計算。它的任務是已知電力系統某一正常運行狀態和受到某種擾動,計算電力系統所有發電機能否同步運行
1運行說明:
請輸入初始功率S0,形如a+bi
請輸入無限大系統母線電壓V0
請輸入系統等值電抗矩陣B
矩陣B有以下元素組成的行矩陣
1正常運行時的系統直軸等值電抗Xd
2故障運行時的系統直軸等值電抗X d
3故障切除后的系統直軸等值電抗
請輸入慣性時間常數Tj
請輸入時段數N
請輸入哪個時段發生故障Ni
請輸入每時段間隔的時間dt
標簽:
電力系統
正
計算
運行
上傳時間:
2015-06-13
上傳用戶:it男一枚
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Implemented BFS, DFS and A*
To compile this project, use the following command:
g++ -o search main.cpp
Then you can run it:
./search
The input is loaded from a input file in.txt
Here is the format of the input file:
The first line of the input file shoud contain two chars indicate the source and destination city for breadth first and depth first algorithm.
The second line of input file shoud be an integer m indicate the number of connections for the map.
Following m lines describe the map, each line represents to one connection in this form: dist city1 city2, which means there is a connection between city1 and city2 with the distance dist.
The following input are for A*
The following line contains two chars indicate the source and destination city for A* algorithm.
Then there is an integer h indicate the number of heuristic.
The following h lines is in the form: city dist which means the straight-line distance from the city to B is dist.
標簽:
Implemented
following
compile
command
上傳時間:
2014-01-01
上傳用戶:lhc9102
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一:需求分析
1. 問題描述
魔王總是使用自己的一種非常精練而抽象的語言講話,沒人能聽懂,但他的語言是可逐步解釋成人能聽懂的語言,因為他的語言是由以下兩種形式的規則由人的語言逐步抽象上去的:
-----------------------------------------------------------
(1) a---> (B1)(B2)....(Bm)
(2)[(op1)(p2)...(pn)]---->[o(pn)][o(p(n-1))].....[o(p1)o]
-----------------------------------------------------------
在這兩種形式中,從左到右均表示解釋.試寫一個魔王語言的解釋系統,把
他的話解釋成人能聽得懂的話.
2. 基本要求:
用下述兩條具體規則和上述規則形式(2)實現.設大寫字母表示魔王語言的詞匯 小寫字母表示人的語言的詞匯 希臘字母表示可以用大寫字母或小寫字母代換的變量.魔王語言可含人的詞匯.
(1) B --> tAdA
(2) A --> sae
3. 測試數據:
B(ehnxgz)B 解釋成 tsaedsaeezegexenehetsaedsae若將小寫字母與漢字建立下表所示的對應關系,則魔王說的話是:"天上一只鵝地上一只鵝鵝追鵝趕鵝下鵝蛋鵝恨鵝天上一只鵝地上一只鵝".
| t | d | s | a | e | z | g | x | n | h |
| 天 | 地 | 上 | 一只| 鵝 | 追 | 趕 | 下 | 蛋 | 恨 |
標簽:
語言
抽象
分
上傳時間:
2014-12-02
上傳用戶:jkhjkh1982
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The XML Toolbox converts MATLAB data types (such as double, char, struct, complex, sparse, logical) of any level of nesting to XML format and vice versa.
For example,
>> project.name = MyProject
>> project.id = 1234
>> project.param.a = 3.1415
>> project.param.b = 42
becomes with str=xml_format(project, off )
"<project>
<name>MyProject</name>
<id>1234</id>
<param>
<a>3.1415</a>
<b>42</b>
</param>
</project>"
On the other hand, if an XML string XStr is given, this can be converted easily to a MATLAB data type or structure V with the command V=xml_parse(XStr).
標簽:
converts
Toolbox
complex
logical
上傳時間:
2016-02-12
上傳用戶:a673761058