HubsanTx.h

00001 #ifndef _HUBSAN_X4_TX
00002 #define _HUBSAN_X4_TX
00003 
00004 #include "A7105.h"
00005 
00006 enum{
00007     FLAG_VIDEO= 0x01,   // record video
00008     FLAG_FLIP = 0x08,   // enable flips
00009     FLAG_LED  = 0x04    // enable LEDs
00010 };
00011 
00012 static const uint8_t kAllowedChannels[] =
00013         {0x14, 0x1E, 0x28, 0x32, 0x3C, 0x46, 0x50, 0x5A, 0x64, 0x6E, 0x78, 0x82};
00014 static const uint32_t kTxId = 0xDB042679;
00015 
00016 /**
00017  * Class for communicating with a Hubsan X4 using the A7105TxRx library
00018  *
00019  * Example:
00020  * @code
00021  * #include "mbed.h"
00022  * #include "HubsanTx.h"
00023  *
00024  * #define A7105_SPI_FREQUENCY  10000000 // 10MHz
00025  * 
00026  * HubsanTx hubsan(D4, D5, D3, D6, A7105_SPI_FREQUENCY);
00027  * 
00028  * int main() {
00029  *     // init
00030  *     hubsan.init();
00031  * }
00032  * @endcode
00033  */
00034 class HubsanTx : public A7105 {
00035     public:
00036         /**
00037          * @param mosi Pin used to transmit data to the slave
00038          * @param miso Pin used to receive data from the slave
00039          * @param clk Pin used for the clock
00040          * @param cs Pin used for the chip select
00041          * @param freqHz Frequency used to clock data in and out
00042          */
00043         HubsanTx (PinName mosi, PinName miso, PinName clk, PinName cs, uint32_t freqHz);
00044         
00045         /**
00046          * Initialize the A7105 to communicate with a Hubsan X4
00047          */
00048         int8_t init();
00049     
00050     private:
00051         uint8_t _packet[16];
00052         uint8_t _channel;
00053         uint32_t _sessionId;
00054         uint8_t _state;
00055         uint8_t _packetCount;
00056 };
00057 
00058 #endif // _HUBSAN_X4_TX