Software Dev: Arduino sketch & eclipse on Linux - 3.0

4 Jul 2018

OK, so far I have shown you what you need, and what not to do, and never dos and just bad things that we tend not to do as programmers. Now I'm going to so you a program side-by-side Arduino vs eclipse using ANSI C.

Arduino	eclipse
/* C-3436A * * C. Harrison Aug 30, 2014 Creation * / #include "C3436A.h" void setup(){ void modes(); Serial.begin(19200); Serial.println("C-3436A awake"); void init(); } void loop(){ int i; // check for input: while( Serial.available()) { char data = Serial.read(); if( data == '!') { char cmd = Serial.read(); char dat = Serial.read(); char eol = Serial.read(); if( cmd = 1 ) { // panel light ;} if( dat = 0 ) { digitalWrite( dial_light, LOW); } if( dat = 1 ) { digitalWrite( dial_light, HIGH); } }} // read all the data for( i= 1; i < 6; i++ ) { frac[i] = digitalRead( F[i]); hund[i] = digitalRead( H[i]); } pwr = digitalRead( powerpin ); // calulate the values: ftest, Htest; int ftest, htest, ftest0, htest0, pwr, pwr0; ftest = decode_F(calc_F()); htest = decode_H(calc_H()); if( ftest != ftest0 or htest != htest0 or pwr != pwr0 ) { //send message to RSS swap(); } else { ; } // Do Nothing }} int decode_H( int data ){ int code[][2] = {{13,0},{9,108},{11,109},{5,110}, {27,111},{16,112},{30,113},{2,114}, {23,115},{8,116},{28,117},{1,118}, {7,119},{4,120},{24,121},{20,122}, {6,123},{18,124},{17,125},{10,126}}; for( int i= 0; i < 22; i++ ) { if( data == code[i][0]) { return code[i][1]; } }} int decode_F( int data ){ int code[] = {20, 5, 8, 2, 16, 4, 1, 9, 10, 18 }; for( int i= 0; i < 10; i++ ) { if( data == code[i]) { return i; } }} int calc_F(){ int temp = ( F[22] + (F[21]2) + (F[20]4) + (F[8]8) + (F[7]16)); return( temp ); } int calc_H(){ int temp = ( H[19] + (H[18]2) + (H[17]4) + (H[5]8) + (H[4]*16)); return( temp ); } void swap(){ for( int i = 1; i < 6; i++ ) { frac0[i] = frac[i]; hund0[i] = hund[i]; } ftest0 = ftest; htest0 = htest; pwr0 = pwr; } void modes(){ pinMode( F[1], INPUT_PULLUP); pinMode( F[2], INPUT_PULLUP); pinMode( F[3], INPUT_PULLUP); pinMode( F[4], INPUT_PULLUP); pinMode( F[5], INPUT_PULLUP); // hundreds array pinMode(H[1], INPUT_PULLUP); pinMode(H[2], INPUT_PULLUP); pinMode(H[3], INPUT_PULLUP); pinMode(H[4], INPUT_PULLUP); pinMode(H[5], INPUT_PULLUP); // Now we have to assign the power switch pin pinMode( powerpin, INPUT_PULLUP); // Now we have to assign the digital output pins pinMode(dial_light, OUTPUT); } // we need to read the first time so while in loop the test will not fail. // read all the pins and put then in arrays void init(){ int i; for( i=1; i< 7; i++){ frac0[i] = digitalRead(F[i]); hund0[i] = digitalRead(H[i]); } ftest0 = decode_F(calc_F()); htest0 = decode_H(calc_H()); pwr = digitalRead(powerpin); }	* C-3436A.c ** C. Harrison Aug 30, 2014 Creation * July 3, 2018 Re-Creation from arduino source * */ #include "C3436A.h" #include "C3436A.subs.c" void main( ){ init(); //one time call to do some housekeeping // the next two lines deal with arduino serial library Serial.begin(19200); Serial.println("C-3436A awake"); do{ int i; // check for input: while( Serial.available()) { char data = Serial.read(); if( data == '!') { char cmd = Serial.read(); char dat = Serial.read(); char eol = Serial.read(); if( cmd = 1 ) { // panel light } if( dat = 0 ) { digitalWrite( dial_light, LOW); } if( dat = 1 ) { digitalWrite( dial_light, HIGH); }} // read all the data for( i= 1; i < 6; i++ ) { frac[i] = digitalRead( F[i]); hund[i] = digitalRead( H[i]); } pwr = digitalRead( powerpin ); // calulate the values:ftest, Htest; int ftest, htest, ftest0, htest0, pwr, pwr0; ftest = decode_F(calc_F()); htest = decode_H(calc_H()); if( ftest != ftest0 or htest != htest0 or pwr != pwr0 ) { //send message to RSS swap(); } else { ; }}(while TRUE ); // This is a forever loop with out an exit } // Do Nothing return; } NOTES: Notice this is much more readable than the with the Arduino IDE. Also notice that in using .h files I have hid the blood of the pins, and their modes. You shouldn't care where your data comes from its just data. So, isolate it, and or encapsulate it. Now let take a look at my logic I want this chunk of code well to run forever but maybe I would like to stop it. while( TEST ){} you test first. do{ }while( TEST) you test last for( int x=0; TEST; x++[normal thing]) this would be good if I wanted to run x times for(;;) is a forever loop this notation is fround on as it contains no information #define FOREVER for(;;) #define LOOP kind of the same but again without information Whoops, Duh, I forgot to tell you that whenever you use the pre-processor directives such as #define, etc. they should be CAPED, this is your clue to go look in the header file. This is not a compiler thing, it is more of a convention.
/* C-3436A.h * * C. Harrison Aug 21, 2014 Creation * */ // we need to list the digital input pins: // Pin defs // please note: arrays F[] & H[] are being indexed 1-5 int F[]= { 0, 22, 23, 24, 25, 26 }; int H[]= { 0, 30, 31, 32, 33, 34 }; int powerpin = 20; int dial_light = 40; // now we need the variables & arrays int frac[6]; int hund[6]; int frac0[6]; int hund0[6]; int pwr, pwr0; int ftest, ftest0; int htest, htest0;	/* C-3436A.subs.c * * C. Harrison Aug 30, 2014 Creation * July 3, 2018 Re-Creation from arduino source * / int decode_H( int data ){ int code[][2] = {{13,0},{9,108},{11,109},{5,110}, {27,111},{16,112},{30,113},{2,114}, {23,115},{8,116},{28,117},{1,118}, {7,119},{4,120},{24,121},{20,122}, {6,123},{18,124},{17,125},{10,126}}; for( int i= 0; i < 22; i++ ) { if( data == code[i][0]) { return code[i][1]; }}} int decode_F( int data ){ int code[] = {20, 5, 8, 2, 16, 4, 1, 9, 10, 18 }; for( int i= 0; i < 10; i++ ) { if( data == code[i]) { return i; }}} int calc_F(){ int temp = ( F[22] + (F[21]2) + (F[20]4) + (F[8]8) + (F[7]16)); return( temp ); } int calc_H(){ int temp = ( H[19] + (H[18]2) + (H[17]4) + (H[5]8) + (H[4]*16)); return( temp ); } void swap(){ for( int i = 1; i < 6; i++ ) { frac0[i] = frac[i]; hund0[i] = hund[i]; } ftest0 = ftest; htest0 = htest; pwr0 = pwr; } void init(){ // we need to read the first time so while in the loop the test will not fail. // read all the pins and put them in arrays int i; for( i=1; i< 7; i++){ frac0[i] = digitalRead(F[i]); hund0[i] = digitalRead(H[i]); } ftest0 = decode_F(calc_F()); htest0 = decode_H(calc_H()); pwr = digitalRead(powerpin); }
	/* * C-3436A.h * * C. Harrison Aug 30, 2014 Creation * July 3, 2018 Re-Creation from arduino source * */ #define TRUE 1; #include "include/pins.h" #include "include/modes.h"
	/* C-3436A.subs.h * * C. Harrison Aug 30, 2014 Creation * July 3, 2018 Re-Creation from arduino source * * int calc_F(); int calc_H(); int decode_F( int data ); int decode_H( int data ); void init(); void swap();
	/* * pins.h * * C. Harrison Aug 21, 2014 Creation * July 3, 2018 Re-Creation from arduino source * (https://www.hackster.io/phoenixcomm/nexgen-flight-simulator-radio-interface-5a1f52 ) */ // we need to list the digital input pins: // Pin defs // please note: arrays F[] & H[] are being indexed 1-5 int F[]= { 0, 22, 23, 24, 25, 26 }; int H[]= { 0, 30, 31, 32, 33, 34 }; int powerpin = 20; int dial_light = 40;
	/* * modes.h * * C. Harrison Aug 21, 2014 Creation * July 3, 2018 Re-Creation from arduino source */ void modes(){ // units array pinMode( F[1], INPUT_PULLUP); pinMode( F[2], INPUT_PULLUP); pinMode( F[3], INPUT_PULLUP); pinMode( F[4], INPUT_PULLUP); pinMode( F[5], INPUT_PULLUP); // hundreds array pinMode(H[1], INPUT_PULLUP); pinMode(H[2], INPUT_PULLUP); pinMode(H[3], INPUT_PULLUP); pinMode(H[4], INPUT_PULLUP); pinMode(H[5], INPUT_PULLUP); // Now we have to assign the power switch pin pinMode( powerpin, INPUT_PULLUP); // Now we have to assign the digital output pins pinMode(dial_light, OUTPUT); }

Revisions:

Purists, please don't jump down my throat. I broke a general rule on header files that it should not contain executable code. The header file modes.h has a function modes() this function should go into C-3436A.subs.c and then called placed in the top of the function init without the function wrapper. [Wednesday, July 4, 2018 5:40:21 PM GMT]
This is a letter that I just (a few hours ago to the folks at Element14. This letter/note discusses the <pre> tag and how it does not work as advertised!
You all know how I barely tolerate this really crappy editor with all its stupid quirks (me being nice!) You should do everybody a favor and JUST EMBRACE HTML5 with CSS (just like eBay !) Like your stupid reason forbidding <style> tags (local tags CAN NOT BE HACKED!) so that now we can use classes!; Yes you could inject malicious code with this external stylesheet! Duh so don't allow this: "<link rel="stylesheet" type="text/css" href="mystyle.css">" (local tags CAN NOT BE HACKED!))! But you guys tossed out the bathwater, the baby went with it. LOL!
But whats wrong with this:
"<style>
Arial10 {font-family: 'arial'; font-size: 10px;}
</style>"
useage: <div class="Arial10" style="....
But this one is OFF THE CHART~!
First Offical reference the lowly <pre>...</pre> tag!
https://developer.mozilla.org/en-US/docs/Web/HTML...
```
Text in a pre element
is displayed in a fixed-width
font, and it preserves
both      spaces and
line breaks.
```
---------- REAL LIFE case in point:
"NexGen: Software Development: arduino sketch & eclipse on Linux. Part 3"
---------- WAS:
```
/*
 * C-3436A.subs.h
 *
 *  C. Harrison Aug 30, 2014 Creation
 *              July 3, 2018 Re-Creation from arduino source
 *
 */

int calc_F();
int calc_H();
int decode_F( int data );
int decode_H( int data );
void init();
void swap();
```
----- GOT -train wreck this is the source!
/* * C-3436A.subs.h
 * * C. Harrison Aug 30, 2014 Creation
 * July 3, 2018 Re-Creation from arduino source
 * */ 
int calc_F();
int calc_H();
int decode_F( int data );
int decode_H( int data );
void init();
void swap();


---- FIXED This is better.
<pre>/* * C-3436A.subs.h * * C. Harrison Aug 30, 2014 Creation * July 3, 2018 Re-Creation from arduino source * */ int calc_F(); int calc_H(); int decode_F( int data ); int decode_H( int data ); void init()void swap(); </pre>

---- prolog I have spent many an hour last night on the 3rd when by all rights I should be in the pub for it is now the 4th of July (Brits see ref 1776). Last night with too many brews, I have come to this conclusion: That even after I put together a blog in Blue Fish Editor, I know that when I paste it into your editor something WILL BRAKE!! Please for G-d's sake and everybody's sanity GET OVER IT embraces HTML5 and CSS. Thanks for the quality time. Now I have to get the Champaign in the fridge for this eve.

Top Comments

phoenixcomm over 5 years ago in reply to neuromodulator

neuromodulator use struct all the time some have struct in struct
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neuromodulator over 5 years ago

Well objects aint much big of a deal. Its more or less a single unit that contains data and functions. You still could do OOP with ansi C, the way you would do it is by defininig a struct that contains all the data that represents something, for instance a serial port, and then a set of functions that will use that struct and perform an operation (ie: read or write to the serial port). Of course its much more convenient to use the C++ style, but nothing stops you from doing OOP in good ol' C
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phoenixcomm over 5 years ago in reply to phoenixcomm

reply you know I would just rather use a pointer to the pin and get it over with or a device descriptor for RS232, Ethernet, I₂C, etc. And for where is the good stuff like printf() or fprintf()? A long time ago a guy named Bjarne Stroustrup wrote a book called C++ and we thought he was nuts! C++ supports both OOP and non-OOP programming styles. When I write code I use the GCC ANSI C compiler. As I am still struggling with OOP in JAVA I have no wish to learn C++ at this time. "Serial.read() does a lot for you or I would have to do to something like this:
char buffer[500];
// make buffer NULL
cnt = 0;
do {
 buffer[cnt] = NULL; }(cnt <500; cnt++);
serialFD = open(/dev/ser1); //open the device p-code
//fill buffer
do {
 buffer[cnt] = readChar(serialFD);
 }( buffer[cnt++] != NULL); // check for NUL and bump cntr.
so now since i know the lenth of the string I can play games like this
if ( buffer[5] == myAddress) { Do Something;
length = buffer[6]; // say 20
command = buffer[8];
cnt =10;
do {
 pstring = buffer[10]++; }( cnt < ( buffer[6] + 10 );
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neuromodulator over 5 years ago in reply to phoenixcomm

Which is a C++ lib
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phoenixcomm over 5 years ago in reply to neuromodulator

Its the Arduino Library Call you are being too picky
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