| 1 | #include <Arduino.h> |
| 2 | #include "ELECHOUSE_CC1101_SRC_DRV.h" |
| 3 | #include "cc1101.h" |
| 4 | #include "config.h" |
| 5 | |
| 6 | // ===== CONFIG ===== |
| 7 | #define RAW_BUF_MAX 512 |
| 8 | |
| 9 | // ===== STATE ===== |
| 10 | static bool cc1101Inited = false; |
| 11 | |
| 12 | // ===== CAPTURE STATE ===== |
| 13 | volatile unsigned long captureBuffer[RAW_BUF_MAX]; |
| 14 | volatile int pulseIndex = 0; |
| 15 | volatile unsigned long lastEdgeTime = 0; |
| 16 | volatile bool capturing = false; |
| 17 | |
| 18 | // ===== RF SETTINGS ===== |
| 19 | float currentFreq = 433.92; |
| 20 | float dataRate = 3.79372; |
| 21 | float deviation = 0.0; |
| 22 | float rxBW = 325.0; |
| 23 | int powerLevel = 10; |
| 24 | |
| 25 | // ===== ISR ===== |
| 26 | void IRAM_ATTR pulseISR() |
| 27 | { |
| 28 | unsigned long now = micros(); |
| 29 | |
| 30 | if (!capturing) return; |
| 31 | if (pulseIndex >= RAW_BUF_MAX) return; |
| 32 | |
| 33 | unsigned long duration = now - lastEdgeTime; |
| 34 | |
| 35 | if (duration < 50) return; |
| 36 | |
| 37 | captureBuffer[pulseIndex++] = duration; |
| 38 | lastEdgeTime = now; |
| 39 | } |
| 40 | |
| 41 | // ===== OOK SETUP ===== |
| 42 | void setupOOKMode() |
| 43 | { |
| 44 | ELECHOUSE_cc1101.SetRx(); |
| 45 | ELECHOUSE_cc1101.setMHZ(currentFreq); |
| 46 | |
| 47 | ELECHOUSE_cc1101.setModulation(0); // ASK/OOK |
| 48 | ELECHOUSE_cc1101.setDRate(dataRate); |
| 49 | ELECHOUSE_cc1101.setDeviation(0); |
| 50 | ELECHOUSE_cc1101.setRxBW(rxBW); |
| 51 | ELECHOUSE_cc1101.setSyncMode(0); |
| 52 | ELECHOUSE_cc1101.setPA(powerLevel); |
| 53 | } |
| 54 | |
| 55 | // ===== INIT (LAZY, SAFE) ===== |
| 56 | bool initCC1101() |
| 57 | { |
| 58 | if (cc1101Inited) |
| 59 | return true; |
| 60 | |
| 61 | Serial.println("Initializing CC1101..."); |
| 62 | |
| 63 | // IMPORTANT: no detachInterrupt here (causes crash if not installed) |
| 64 | |
| 65 | ELECHOUSE_cc1101.setSpiPin( |
| 66 | cc1101_SCK, |
| 67 | cc1101_MISO, |
| 68 | cc1101_MOSI, |
| 69 | CC1101_CS |
| 70 | ); |
| 71 | |
| 72 | ELECHOUSE_cc1101.setGDO(CC1101_GDO0, CC1101_GDO2); |
| 73 | |
| 74 | if (!ELECHOUSE_cc1101.getCC1101()) |
| 75 | { |
| 76 | Serial.println("❌ CC1101 NOT FOUND"); |
| 77 | return false; |
| 78 | } |
| 79 | |
| 80 | delay(10); // let SPI settle |
| 81 | |
| 82 | ELECHOUSE_cc1101.Init(); // THIS WAS YOUR FREEZE POINT |
| 83 | setupOOKMode(); |
| 84 | |
| 85 | pinMode(CC1101_GDO0, INPUT); |
| 86 | |
| 87 | Serial.println("✅ CC1101 READY"); |
| 88 | |
| 89 | cc1101Inited = true; |
| 90 | return true; |
| 91 | } |
| 92 | |
| 93 | // ===== CAPTURE CONTROL ===== |
| 94 | void startCapture() |
| 95 | { |
| 96 | pulseIndex = 0; |
| 97 | capturing = true; |
| 98 | lastEdgeTime = micros(); |
| 99 | |
| 100 | attachInterrupt( |
| 101 | digitalPinToInterrupt(CC1101_GDO0), |
| 102 | pulseISR, |
| 103 | CHANGE |
| 104 | ); |
| 105 | |
| 106 | Serial.println("Capture started"); |
| 107 | } |
| 108 | |
| 109 | bool isCC1101Ready() { |
| 110 | return cc1101Inited; |
| 111 | } |
| 112 | |
| 113 | void stopCapture() |
| 114 | { |
| 115 | capturing = false; |
| 116 | |
| 117 | detachInterrupt(digitalPinToInterrupt(CC1101_GDO0)); |
| 118 | |
| 119 | Serial.println("Capture stopped"); |
| 120 | } |
| 121 | |
| 122 | // ===== DEBUG PRINT ===== |
| 123 | void printCapture() |
| 124 | { |
| 125 | Serial.println("Captured pulses:"); |
| 126 | |
| 127 | for (int i = 0; i < pulseIndex; i++) |
| 128 | { |
| 129 | Serial.println(captureBuffer[i]); |
| 130 | } |
| 131 | } |
| 132 | |
| 133 | |
| 134 | // ===== REPLAY ===== |
| 135 | void replaySignal() |
| 136 | { |
| 137 | Serial.println("Replaying..."); |
| 138 | |
| 139 | ELECHOUSE_cc1101.SetTx(); |
| 140 | pinMode(CC1101_GDO0, OUTPUT); |
| 141 | |
| 142 | for (int i = 0; i < pulseIndex; i++) |
| 143 | { |
| 144 | digitalWrite(CC1101_GDO0, (i % 2 == 0) ? HIGH : LOW); |
| 145 | delayMicroseconds(captureBuffer[i]); |
| 146 | } |
| 147 | |
| 148 | digitalWrite(CC1101_GDO0, LOW); |
| 149 | ELECHOUSE_cc1101.SetRx(); |
| 150 | } |