work

README.md

@@ -47,6 +47,7 @@ CRC is computed using `crc8_dvb_s2` method. Initial CRC value for each frame CRC
 | 0100   | 0x4          | Set receiver configuration | TX -> RX | no used |
 | 0101   | 0x5          | PING frame, uses 9 byte payload | TX -> RX | 4    |
 | 0110   | 0x6          | PONG frame, the same payload as PING | RX -> TX | 4 |
+| 0111   | 0x7          | `BIND` frame, transmitted by TX only during binding | TX -> RX | 4 |
 
 ### `RC_DATA` frame format
 
@@ -82,6 +83,15 @@ Total length of `RC_DATA` payload is 9 bytes
 **TX** sends `PING` frame with curent `micros`. If **RX** receives `PING` frame, it respons
 its payload as `PONG` frame. 
 
+### `BIND` frame format
+
+| Byte  | Description                           |
+| ----  | ----                                  |
+| 1     | Bind key byte 0                       |
+| 2     | Bind key byte 1                       |
+| 3     | Bind key byte 2                       |
+| 4     | Bind key byte 3                       |
+
 # RSSI
 
 1. Receiver RSSI for the last received packet is injected as channel 11

crossbow/variables.h

@@ -34,7 +34,8 @@
 #define QSP_FRAME_SET_RX_CONFIG 0x4
 #define QSP_FRAME_PING 0x5
 #define QSP_FRAME_PONG 0x6
-#define QSP_FRAME_COUNT 0x7
+#define QSP_FRAME_BIND 0x7
+#define QSP_FRAME_COUNT 0x8
 
 static const uint8_t qspFrameLengths[QSP_FRAME_COUNT] = {
     9, //QSP_FRAME_RC_DATA
@@ -44,6 +45,7 @@ static const uint8_t qspFrameLengths[QSP_FRAME_COUNT] = {
     0, //QSP_FRAME_SET_RX_CONFIG -> Not used
     4, //QSP_FRAME_PING
     4, //QSP_FRAME_PONG
+    4  //QSP_FRAME_BIND
 };
 
 #define RX_ADC_PIN_1 A0