initial commit

1 files changed, 150 insertions, 0 deletions

diff --git a/firmware/cc1101.cpp b/firmware/cc1101.cpp
new file mode 100644
index 0000000..dcbbbee
--- /dev/null
+++ b/firmware/cc1101.cpp
@@ -0,0 +1,150 @@
+#include <Arduino.h>
+#include "ELECHOUSE_CC1101_SRC_DRV.h"
+#include "cc1101.h"
+#include "config.h"
+
+// ===== CONFIG =====
+#define RAW_BUF_MAX 512
+
+// ===== STATE =====
+static bool cc1101Inited = false;
+
+// ===== CAPTURE STATE =====
+volatile unsigned long captureBuffer[RAW_BUF_MAX];
+volatile int pulseIndex = 0;
+volatile unsigned long lastEdgeTime = 0;
+volatile bool capturing = false;
+
+// ===== RF SETTINGS =====
+float currentFreq = 433.92;
+float dataRate = 3.79372;
+float deviation = 0.0;
+float rxBW = 325.0;
+int powerLevel = 10;
+
+// ===== ISR =====
+void IRAM_ATTR pulseISR()
+{
+    unsigned long now = micros();
+
+    if (!capturing) return;
+    if (pulseIndex >= RAW_BUF_MAX) return;
+
+    unsigned long duration = now - lastEdgeTime;
+
+    if (duration < 50) return;
+
+    captureBuffer[pulseIndex++] = duration;
+    lastEdgeTime = now;
+}
+
+// ===== OOK SETUP =====
+void setupOOKMode()
+{
+    ELECHOUSE_cc1101.SetRx();
+    ELECHOUSE_cc1101.setMHZ(currentFreq);
+
+    ELECHOUSE_cc1101.setModulation(0); // ASK/OOK
+    ELECHOUSE_cc1101.setDRate(dataRate);
+    ELECHOUSE_cc1101.setDeviation(0);
+    ELECHOUSE_cc1101.setRxBW(rxBW);
+    ELECHOUSE_cc1101.setSyncMode(0);
+    ELECHOUSE_cc1101.setPA(powerLevel);
+}
+
+// ===== INIT (LAZY, SAFE) =====
+bool initCC1101()
+{
+    if (cc1101Inited)
+        return true;
+
+    Serial.println("Initializing CC1101...");
+
+    // IMPORTANT: no detachInterrupt here (causes crash if not installed)
+
+    ELECHOUSE_cc1101.setSpiPin(
+        cc1101_SCK,
+        cc1101_MISO,
+        cc1101_MOSI,
+        CC1101_CS
+    );
+
+    ELECHOUSE_cc1101.setGDO(CC1101_GDO0, CC1101_GDO2);
+
+    if (!ELECHOUSE_cc1101.getCC1101())
+    {
+        Serial.println("❌ CC1101 NOT FOUND");
+        return false;
+    }
+
+    delay(10); // let SPI settle
+
+    ELECHOUSE_cc1101.Init();   // THIS WAS YOUR FREEZE POINT
+    setupOOKMode();
+
+    pinMode(CC1101_GDO0, INPUT);
+
+    Serial.println("✅ CC1101 READY");
+
+    cc1101Inited = true;
+    return true;
+}
+
+// ===== CAPTURE CONTROL =====
+void startCapture()
+{
+    pulseIndex = 0;
+    capturing = true;
+    lastEdgeTime = micros();
+
+    attachInterrupt(
+        digitalPinToInterrupt(CC1101_GDO0),
+        pulseISR,
+        CHANGE
+    );
+
+    Serial.println("Capture started");
+}
+
+bool isCC1101Ready() {
+    return cc1101Inited;
+}
+
+void stopCapture()
+{
+    capturing = false;
+
+    detachInterrupt(digitalPinToInterrupt(CC1101_GDO0));
+
+    Serial.println("Capture stopped");
+}
+
+// ===== DEBUG PRINT =====
+void printCapture()
+{
+    Serial.println("Captured pulses:");
+
+    for (int i = 0; i < pulseIndex; i++)
+    {
+        Serial.println(captureBuffer[i]);
+    }
+}
+
+
+// ===== REPLAY =====
+void replaySignal()
+{
+    Serial.println("Replaying...");
+
+    ELECHOUSE_cc1101.SetTx();
+    pinMode(CC1101_GDO0, OUTPUT);
+
+    for (int i = 0; i < pulseIndex; i++)
+    {
+        digitalWrite(CC1101_GDO0, (i % 2 == 0) ? HIGH : LOW);
+        delayMicroseconds(captureBuffer[i]);
+    }
+
+    digitalWrite(CC1101_GDO0, LOW);
+    ELECHOUSE_cc1101.SetRx();
+}