mirror of
https://github.com/aster94/logic-analyzer.git
synced 2026-05-01 15:10:43 +03:00
356 lines
7.9 KiB
Plaintext
356 lines
7.9 KiB
Plaintext
import processing.serial.*;
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import java.util.Arrays;
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Serial p;
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//colors:
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int white = 255;
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int black = 0;
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int green = #00FF00;
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int grey = 150;
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// shift, reducer and millisecond view
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float reducer = 1.0;
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boolean milliseconds = false;
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boolean graphShift = false;
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int xShift;
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// start point in the processing window
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int xEdge = 60;
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int yEdge = 30;
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int xEnd;
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int yBottom = 370;
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int yDiff;
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int yPos = yEdge;
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float[] xPos = {0, 0, 0, 0, 0, 0};
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boolean textCovered;
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//data to draw the graph
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//initial data
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int samples;
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int event;
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int initialState;
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int save_initialState;
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boolean first = false;
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boolean dataComplete = false;
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//following data
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boolean [][] state;
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boolean [] isLow = new boolean[6];
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float[] usTime;
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int[] changed;
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float[] xTime;
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//buttons and others
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int buttonH = 20;
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int smallButtonW = 40;
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int bigButtonW = 100;
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int boxH;
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int boxW;
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void setup () {
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p = new Serial(this, "com3", 9600);
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p.bufferUntil('\n');
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size(1000, 450);
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background(black);
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smooth(3);
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boxH = height -50;
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boxW = 20;
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}
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void cleanScreen() {
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noStroke(); //no borders
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fill(black);
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rect(xEdge, 0, width, boxH); //cancel the graph
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stroke(green); //border
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Arrays.fill(xPos, 0); //reset start point of the graph
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if (graphShift==true) {
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int b;
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initialState = save_initialState;
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for (int n=0; n<6; n++) {
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b = initialState & 1;
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isLow[n] = !boolean (b);
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initialState >>= 1;
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//println("islow: "+isLow[n]);
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}
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}
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}
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void draw () {
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if (dataComplete==true || graphShift==true) {
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cleanScreen();
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pushMatrix(); //move the coordinate reference
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translate(xEdge, 0);
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for (int i=0; i<samples; i++) {
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for (int n=0; n<6; n++) {
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if (state[i][n]==true) {
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if (isLow[n]==true) {
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yDiff=yPos;
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yPos+=30;
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isLow[n]=false;
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} else {
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yDiff=yPos+30;
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isLow[n]=true;
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}
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// Text lines
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stroke(grey);
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fill(grey);
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textSize(10);
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textCovered=!textCovered;
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dashline(xTime[i]+xShift, yPos, xTime[i]+xShift, yBottom, spacing);
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text(round(usTime[i]), xTime[i]+xShift+2, (textCovered==true) ? yBottom : yBottom+10); //write on different height
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stroke(green);
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// Graph lines
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line(xPos[n]+xShift, yPos, xTime[i]+xShift, yPos); // straight line
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line(xTime[i]+xShift, yPos, xTime[i]+xShift, yDiff); // vertical line
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xPos[n]=xTime[i]; // save last position of the line for the pin
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}
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yPos+=60; // go to the next pin
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yDiff=yPos; // reset the value of the hight/low
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}
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yPos=yEdge; // start a new cicle
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}
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xEnd = int (xTime[samples-1]) +100;
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for (int n = 0; n < 6; n++) {
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if (xPos[n]!=0) { //draw only the pin which are active
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if (isLow[n]==true) line(xPos[n]+xShift, yPos+30, xEnd+xShift, yPos+30);
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else line(xPos[n]+xShift, yPos, xEnd+xShift, yPos);
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}
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yPos+=60;
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}
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yPos=yEdge;
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dataComplete=false;
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graphShift=false;
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popMatrix();
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}
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drawText();
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}
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void drawText() {
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stroke(white);
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fill(black);
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rect(0, 0, xEdge, boxH);
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fill(white);
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textSize(14);
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int x=10;
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int y=55;
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for (int i = 8; i<=13; i++) {
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text ("Pin "+i, x, y);
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y+=60;
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}
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fill(grey);
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rect(boxW, boxH, smallButtonW, buttonH);
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rect(boxW+80, boxH, bigButtonW, buttonH);
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rect(boxW+230, boxH, smallButtonW, buttonH);
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rect(boxW+330, boxH, smallButtonW, buttonH);
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fill(white);
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text("Start", boxW+3, boxH+14);
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text(milliseconds == true ? "milliseconds" : "microseconds", boxW+83, boxH+14);
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text(round(reducer), boxW+233, boxH+14);
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text("Save", boxW+333, boxH+14);
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}
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void mouseClicked() {
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// reset
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if (mouseY>boxH && mouseY <boxH+buttonH &&
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mouseX>boxW && mouseX <boxW+smallButtonW) {
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p.write('G');
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p.clear();
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cleanScreen();
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}
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// micro or millis
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if (mouseY>boxH && mouseY <boxH+buttonH &&
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mouseX>boxW+80 && mouseX <boxW+80+bigButtonW) {
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milliseconds = !milliseconds;
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p.write('G');
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p.clear();
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cleanScreen();
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}
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//save frame
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if (mouseY>boxH && mouseY <boxH+buttonH &&
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mouseX>boxW+330 && mouseX <boxW+330+smallButtonW) {
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save("la-capture.jpg");
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}
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}
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void mouseWheel(MouseEvent event) {
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int wheel = event.getCount();
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if (mouseY>boxH && mouseY <boxH+buttonH &&
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mouseX>boxW+230 && mouseX <boxW+230+smallButtonW) {
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//over the reducer button
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reducer-= wheel;
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reducer = constrain(reducer, 1, 1000);
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} else { //move the graph
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xShift-=wheel*50;
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graphShift=true;
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}
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}
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void mouseMoved() {
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if ((mouseY>boxH && mouseY <boxH+buttonH) &&
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(mouseX>boxW && mouseX <boxW+smallButtonW) ||
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(mouseX>boxW+80 && mouseX <boxW+80+bigButtonW) ||
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(mouseX>boxW+330 && mouseX <boxW+330+smallButtonW)) {
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cursor(HAND);
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} else {
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cursor(ARROW);
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}
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}
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void serialEvent (Serial p) {
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String inString = p.readStringUntil('\n');
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inString = trim(inString);
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if (inString.equals("S") == true) {
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initialState=0;
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samples=0;
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event=-2;
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first = true;
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} else {
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String list [] = split(inString, ':');
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if (first == true) {
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initialState = int (list[0]);
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save_initialState = initialState;
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samples = int (list[1]);
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changed = new int[samples];
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usTime = new float[samples];
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xTime = new float[samples];
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state = new boolean[samples][6];
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first = false;
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} else {
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changed[event] = int (list[0]);
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usTime[event] = float (list[1]);
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if (milliseconds == true) usTime[event] /= 1000.0;
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}
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}
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event++;
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if (event == samples) {
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getData();
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}
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}
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void getData () {
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//check data:
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//println(initialState);
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//println("pin"+changed[0]);
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//println("time"+usTime[0]);
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//printArray(usTime);
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//printArray(xTime);
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//println("event: "+event);
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//println("pin: "+binary(changed[0], 6));
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for (int i = 0; i < samples; i++) {
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xTime[i] = usTime[i] / reducer; //better to reduce the lenght of the x
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}
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int b;
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// initial state
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for (int n=0; n<6; n++) {
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b = initialState & 1;
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isLow[n] = !boolean (b);
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initialState >>= 1;
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//println("islow: "+isLow[n]);
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}
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// changes
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for (int i=0; i<samples; i++) {
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//println("i:"+i);
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//println(binary(changed[i], 6));
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for (int n=0; n<6; n++) {
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b= changed[i] & 1;
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state[i][n]= boolean (b);
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changed[i] >>= 1;
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//println(state[i][n]);
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}
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}
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dataComplete = true;
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}
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float[] spacing = {5, 4}; //used for the dashline function, pixels
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void dashline(float x0, float y0, float x1, float y1, float[] spacing) {
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float distance = dist(x0, y0, x1, y1);
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float [ ] xSpacing = new float[spacing.length];
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float [ ] ySpacing = new float[spacing.length];
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float drawn = 0.0; // amount of distance drawn
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if (distance > 0)
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{
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int i;
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boolean drawLine = true; // alternate between dashes and gaps
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/*
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Figure out x and y distances for each of the spacing values
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I decided to trade memory for time; I'd rather allocate
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a few dozen bytes than have to do a calculation every time
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I draw.
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*/
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for (i = 0; i < spacing.length; i++)
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{
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xSpacing[i] = lerp(0, (x1 - x0), spacing[i] / distance);
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ySpacing[i] = lerp(0, (y1 - y0), spacing[i] / distance);
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}
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i = 0;
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while (drawn < distance)
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{
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if (drawLine)
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{
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line(x0, y0, x0 + xSpacing[i], y0 + ySpacing[i]);
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}
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x0 += xSpacing[i];
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y0 += ySpacing[i];
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/* Add distance "drawn" by this line or gap */
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drawn = drawn + mag(xSpacing[i], ySpacing[i]);
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i = (i + 1) % spacing.length; // cycle through array
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drawLine = !drawLine; // switch between dash and gap
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}
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}
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}
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