CC1200
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CC1200 is an RF transceiver integrated circuit manufactured by Texas Instruments. The chip can be used for M17.
Register setup for M17
Register setup for reception:
uint8_t cc1200_rx_settings[51*3] =
{
0x00, 0x01, 0x08,
0x00, 0x03, 0x09,
0x00, 0x08, 0x1F,
0x00, 0x0A, 0xAD, //deviation - a little bit under 3.3kHz full scale
0x00, 0x0B, 0x00, //deviation
0x00, 0x0C, 0x5D,
0x00, 0x0D, 0x00,
0x00, 0x0E, 0x8A,
0x00, 0x0F, 0xCB,
0x00, 0x10, 0xAC, //RX filter BW - 9.5kHz
0x00, 0x11, 0x00,
0x00, 0x12, 0x45,
0x00, 0x13, 0x43, //symbol rate 2 - 1.5k sym/s
0x00, 0x14, 0xA9, //symbol rate 1
0x00, 0x15, 0x2A, //symbol rate 0
0x00, 0x16, 0x37, //AGC_REF - AGC Reference Level Configuration
0x00, 0x17, 0xEC,
0x00, 0x19, 0x11,
0x00, 0x1B, 0x51,
0x00, 0x1C, 0x87,
0x00, 0x1D, 0x00,
0x00, 0x20, 0x14,
0x00, 0x26, 0x03,
0x00, 0x27, 0x00,
0x00, 0x28, 0x20,
0x00, 0x2B, 0x03, //output power - 0x03..0x3F (doesn't matter for RX)
0x00, 0x2E, 0xFF,
0x2F, 0x00, 0x1C,
0x2F, 0x01, 0x02, //AFC, 0x22 - on, 0x02 - off
0x2F, 0x04, 0x0C, //external oscillator's frequency is 40 MHz
0x2F, 0x05, 0x09, //16x upsampler, CFM enable
0x2F, 0x0C, 0x57, //frequency - round((float)435000000/5000000*(1<<16))=0x570000
0x2F, 0x0D, 0x00, //frequency
0x2F, 0x0E, 0x00, //frequency
0x2F, 0x10, 0xEE,
0x2F, 0x11, 0x10,
0x2F, 0x12, 0x07,
0x2F, 0x13, 0xAF,
0x2F, 0x16, 0x40,
0x2F, 0x17, 0x0E,
0x2F, 0x19, 0x03,
0x2F, 0x1B, 0x33,
0x2F, 0x1D, 0x17,
0x2F, 0x1F, 0x00,
0x2F, 0x20, 0x6E,
0x2F, 0x21, 0x1C,
0x2F, 0x22, 0xAC,
0x2F, 0x27, 0xB5,
0x2F, 0x32, 0x0E,
0x2F, 0x36, 0x03,
0x2F, 0x91, 0x08
};
Register setup for transmission:
uint8_t cc1200_tx_settings[51*3] =
{
0x00, 0x01, 0x08,
0x00, 0x03, 0x09,
0x00, 0x08, 0x1F,
0x00, 0x0A, 0xAD, //deviation - a little bit under 3.3kHz full scale
0x00, 0x0B, 0x00, //deviation
0x00, 0x0C, 0x5D,
0x00, 0x0D, 0x00,
0x00, 0x0E, 0x8A,
0x00, 0x0F, 0xCB,
0x00, 0x10, 0xAC, //RX filter BW - 9.5kHz (doesn't matter for TX)
0x00, 0x11, 0x00,
0x00, 0x12, 0x45,
0x00, 0x13, 0x43, //symbol rate 2 - 1.5k symb/s
0x00, 0x14, 0xA9, //symbol rate 1
0x00, 0x15, 0x2A, //symbol rate 0
0x00, 0x16, 0x37,
0x00, 0x17, 0xEC,
0x00, 0x19, 0x11,
0x00, 0x1B, 0x51,
0x00, 0x1C, 0x87,
0x00, 0x1D, 0x00,
0x00, 0x20, 0x14,
0x00, 0x26, 0x03,
0x00, 0x27, 0x00,
0x00, 0x28, 0x20,
0x00, 0x2B, 0x03, //output power - 0x03..0x3F
0x00, 0x2E, 0xFF,
0x2F, 0x00, 0x1C,
0x2F, 0x01, 0x22,
0x2F, 0x04, 0x0C, //external oscillator's frequency is 40 MHz
0x2F, 0x05, 0x09, //16x upsampler, CFM enable
0x2F, 0x0C, 0x57, //frequency - round((float)435000000/5000000*(1<<16))=0x570000
0x2F, 0x0D, 0x00, //frequency
0x2F, 0x0E, 0x00, //frequency
0x2F, 0x10, 0xEE,
0x2F, 0x11, 0x10,
0x2F, 0x12, 0x07,
0x2F, 0x13, 0xAF,
0x2F, 0x16, 0x40,
0x2F, 0x17, 0x0E,
0x2F, 0x19, 0x03,
0x2F, 0x1B, 0x33,
0x2F, 0x1D, 0x17,
0x2F, 0x1F, 0x00,
0x2F, 0x20, 0x6E,
0x2F, 0x21, 0x1C,
0x2F, 0x22, 0xAC,
0x2F, 0x27, 0xB5,
0x2F, 0x32, 0x0E,
0x2F, 0x36, 0x03,
0x2F, 0x91, 0x08
};
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