NXC C programs, Other Subject

Assignment Help:
A description of each function used in the program.

Theree programs:

/* HiTechnic Experimenter''s Kit Program

Experiment - 6 Reaction Time Measurement

This program measures the time taken to press a button switch after an LED is turned on.

(c) HiTechnic 2009

*/
#include "NXCDefs.h"

#define PROTO_PORT IN_1

int currtime;
int deltatime;
int randomtime;
int inputdata;
int outputdata;
int count;
byte cmndbuf[]; // buffer for outbound I2C command
byte respbuf[]; // buffer for inbound I2C response

/* protoboard I/O map
42,43 - A0 input
44,45 - A1 input
46,47 - A2 input
48,49 - A3 input
4A,4B - A4 input
4C - B inputs
4D - B outputs
4E - B controls
*/

void readdata()
{
ArrayInit(cmndbuf, 0, 2); // set the buffer to hold 2 values
cmndbuf[0] = 0x02; // set write to channel
cmndbuf[1] = 0x4C; // to set read address
count=1; // 1 byte to read
I2CBytes(PROTO_PORT, cmndbuf, count, respbuf); // issue I2C write command and read the byte back
inputdata=respbuf[0]&0x03;
}

void writedata()
{
ArrayInit(cmndbuf, 0, 3); // set the buffer to hold 3 values
cmndbuf[0] = 0x02; // set write to channel
cmndbuf[1] = 0x4D; // to set write address
cmndbuf[2] = outputdata; // to set write data
count=0; // no bytes to read
I2CBytes(PROTO_PORT, cmndbuf, count, respbuf); // issue I2C write command and read the byte back
}

task main()
{
SetSensorLowspeed(PROTO_PORT); // set sensor port 1 to low speed serial (I2C)
Wait(100);

ArrayInit(cmndbuf, 0, 3); // set the buffer to hold 3 values
cmndbuf[0] = 0x02; // set write to channel
cmndbuf[1] = 0x4E; // to set write address
cmndbuf[2] = 0x30; // to write 001111
count=0; // no bytes to read
I2CBytes(PROTO_PORT, cmndbuf, count, respbuf); // issue I2C write command
Wait(100);

while (TRUE)
{
outputdata=0;
writedata();
ClearScreen();
TextOut(20, LCD_LINE2, "running");
randomtime=Random(5000)+5000;
Wait(randomtime);

outputdata=0x10;
writedata();
currtime=CurrentTick();

inputdata=0x00;
while(inputdata!=0x01)
{
readdata();
}
deltatime=CurrentTick()-currtime;
ClearScreen();
NumOut(20, LCD_LINE2, deltatime);

inputdata=0x00;
while(inputdata!=0x03)
{
readdata();
}
}
}

Related Discussions:- NXC C programs

Financial Accounting, VK Ltd a multi-product Company, furnishes you the fol...

VK Ltd a multi-product Company, furnishes you the following data relating to the year 2000. First Half of the year Second Half of the year Sales Rs. 45,000 Rs. 50,000 Total Cos

World regional geography, World Regional Geography: Regional geography is ...

World Regional Geography: Regional geography is a branch of geography that studies the world's regions. A region itself is defined as a part of the Earth's surface with one or man

Importance of human communication, Importance of Human Communication: Comm...

Importance of Human Communication: Communication, indirectly and directly, plays vital role in society: I am looking for assignment help on the topic Importance of Human Communica

Matlab, his is my svm coding.its not working properly. showing error >> te...

his is my svm coding.its not working properly. showing error >> test2 ??? Error using ==> svmtrain at 190 GROUP and TRAINING must have the same number of rows. Error in ==> test2

Linguistic anthropologists, Linguistic anthropologists: Linguistic anthrop...

Linguistic anthropologists: Linguistic anthropologists, representing one of the discipline's traditional branches, look at the history, evolution, and internal structure of human

Emulsions, what is conclusion of emulsions??

what is conclusion of emulsions??

Museum studies, Museum Studies : A museum is an institution that conserves ...

Museum Studies : A museum is an institution that conserves a collection of artifacts and other objects of, cultural, artistic, scientific or historical significance and makes them

Lanthinides contraction, how i present my assignment on lanthinides contrac...

how i present my assignment on lanthinides contraction nd give me ideas on it

What are the labelling requirements for prepacked food, Question: You h...

Question: You have been assigned the post of Food and Beverage Director at Ever Sunshine Restaurant and Lodge at St Felix, Mauritius which will open on 15 May 2011. The restaur

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd