From 785121714020b244056a86ed5ad1fc0d9a584c9b Mon Sep 17 00:00:00 2001
From: thek4n <thek4n@yandex.ru>
Date: Sat, 13 Jun 2026 00:21:49 +0300
Subject: [PATCH] prototype

---
 assets/root.html                           | 90 +++++++++++++++++++---
 firmware/logic_analyzer/logic_analyzer.ino |  4 +-
 2 files changed, 83 insertions(+), 11 deletions(-)
diff --git a/assets/root.html b/assets/root.html
index 432de7d..02f9ede 100644
--- a/assets/root.html
+++ b/assets/root.html
@@ -1,19 +1,88 @@
 <!DOCTYPE html>
 <html>
   <head>
-    <meta charset='UTF-8'>";
-    <meta name='viewport' content='width=device-width, initial-scale=1.0'>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <title>Logic Analyzer</title>
   </head>
   <body>
     <main>
-
+        <canvas id="binaryChart" width="500" height="250"></canvas>
     </main>
-  </body>
-</html>
+    <script>
+        function drawAllWaveforms(channels_total, samples_total, samples) {
+          const canvas = document.getElementById('binaryChart');
+          const ctx = canvas.getContext('2d');
 
+          ctx.clearRect(0, 0, canvas.width, canvas.height);
 
-function connectWebSocket() {
+          const data = [];
+          for (let i = 0; i < samples_total; i++) {
+              data.push((samples[i] >> 1) & 1);
+          }
+
+          // Настройки отступов
+          const leftMargin = 50;
+          const rightMargin = 30;
+          const topMargin = 30;
+          const bottomMargin = 40;
+          const graphWidth = canvas.width - leftMargin - rightMargin; // 500 - 50 - 30 = 420
+          const graphHeight = canvas.height - topMargin - bottomMargin; // 250 - 30 - 40 = 180
+
+          // Шаг между точками
+          const stepX = graphWidth / (samples_total - 1); // 420 / 9 = 46.67px
+
+          // Отрисовка осей
+          ctx.beginPath();
+          // Ось Y (вертикальная)
+          ctx.moveTo(leftMargin, topMargin);
+          ctx.lineTo(leftMargin, canvas.height - bottomMargin);
+          // Ось X (горизонтальная)
+          ctx.lineTo(canvas.width - rightMargin, canvas.height - bottomMargin);
+          ctx.stroke();
+
+          // Подписи на оси Y (0 и 1)
+          ctx.font = "12px Arial";
+          ctx.fillStyle = "black";
+          ctx.fillText("1", leftMargin - 20, topMargin + 3);
+          ctx.fillText("0", leftMargin - 20, canvas.height - bottomMargin + 3);
+
+          // Подпись оси Y
+          ctx.save();
+          ctx.translate(20, canvas.height / 2);
+          ctx.rotate(-Math.PI / 2);
+          ctx.fillText("Значение", -20, 0);
+          ctx.restore();
+
+          // Рисуем ступенчатый график (бинарный)
+          ctx.beginPath();
+          ctx.strokeStyle = 'blue';
+          ctx.lineWidth = 2;
+
+          for (let i = 0; i < samples_total; i++) {
+            const x = leftMargin + i * stepX;
+            // Преобразуем значение (0 или 1) в Y-координату
+            // 1 -> верх (topMargin), 0 -> низ (canvas.height - bottomMargin)
+            const y = data[i] === 1 ? topMargin : canvas.height - bottomMargin;
+
+            if (i === 0) {
+              ctx.moveTo(x, y);
+            } else {
+              // Рисуем горизонтальную линию от предыдущей точки
+              const prevX = leftMargin + (i - 1) * stepX;
+              const prevY = data[i-1] === 1 ? topMargin : canvas.height - bottomMargin;
+              ctx.lineTo(prevX + stepX, prevY);  // Горизонтальная линия
+              ctx.lineTo(x, y);                   // Вертикальный скачок
+            }
+          }
+          ctx.stroke();
+
+          ctx.fillStyle = "black";
+          ctx.font = "bold 12px Arial";
+          ctx.fillText("Время (такты)", canvas.width/2 - 30, canvas.height - 10);
+        }
+
+        function connectWebSocket() {
             ws = new WebSocket('ws://' + window.location.hostname + ':81');
 
             ws.onopen = function() {
@@ -24,9 +93,7 @@ function connectWebSocket() {
             ws.onmessage = function(event) {
                 const data = JSON.parse(event.data);
                 if (data.type === 'data') {
-                    currentData = data.channels;
-                    currentSamples = data.samples;
-                    drawAllWaveforms();
+                    drawAllWaveforms(data.channels_total, data.samples_total, data.samples);
                 } else if (data.type === 'status') {
                     updateStatus(data.message);
                 }
@@ -38,3 +105,8 @@ function connectWebSocket() {
                 setTimeout(connectWebSocket, 1000);
             };
         }
+
+        window.addEventListener('DOMContentLoaded', connectWebSocket);
+    </script>
+  </body>
+</html>
diff --git a/firmware/logic_analyzer/logic_analyzer.ino b/firmware/logic_analyzer/logic_analyzer.ino
index 471732b..611d391 100644
--- a/firmware/logic_analyzer/logic_analyzer.ino
+++ b/firmware/logic_analyzer/logic_analyzer.ino
@@ -146,8 +146,8 @@ void websocketSendSamples() {
 
     lastTime = now;
 
-    // конвертировать SAMPLES в json
-    String output = "{\"type\":\"data\",\"len\":" + String(SAMPLES_BUFFER_CAP) + ",\"data\":[";
+    int channels_total = sizeof(PINS) / sizeof(PINS[0]);
+    String output = "{\"type\":\"data\",\"samples_total\":" + String(SAMPLES_BUFFER_CAP) + ", \"channels_total\":" + String(channels_total) + ", \"samples\":[";
     for (int i = 0; i < SAMPLES_BUFFER_CAP; ++i) {
         output += String(SAMPLES[i].mask);
         if (i < SAMPLES_BUFFER_CAP - 1) output += ",";
