This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

CC1201EMK-868-930: CC1201 trouble with frequency 920.0Mhz

Part Number: CC1201EMK-868-930
Other Parts Discussed in Thread: CC1201

Hi everyOne

I am doing with CC1201, It worked well but with only 920.0Mhz, the Receiver Sensitivity is not good enough, it is about -85dB. At o

920Mhz_parameter.txt
static const registerSetting_t preferredSettings[]=
{
		  {CC1201_IOCFG0,            0x06},
		  {CC1201_IOCFG2,            0x06},
		  {CC1201_SYNC_CFG1,         0xA8},//4Bytes 0xA8
		  {CC1201_SYNC_CFG0,         0x23},
		  {CC1201_DEVIATION_M,       0x47},   //Deviation 12.5kHz:0x47
		  {CC1201_MODCFG_DEV_E,      0x0A},//2-GFSK
		  {CC1201_DCFILT_CFG,        0x4B},
		  {CC1201_PREAMBLE_CFG1,     0x19},//4Bytes Preamble 0x55
		  {CC1201_PREAMBLE_CFG0,     0x8A},
		  {CC1201_IQIC,              0xD8},
		  {CC1201_CHAN_BW,           0x21},     //DC Filter BW 50>0x21
		  {CC1201_MDMCFG1,           0x42},
		  {CC1201_MDMCFG0,           0x05},
		  {CC1201_SYMBOL_RATE2,      0x84},//25kbps 0x84
		  {CC1201_SYMBOL_RATE1,      0x7A},//             0x7A
		  {CC1201_SYMBOL_RATE0,      0xE1},//              0xE1
		  {CC1201_AGC_REF,           0x24},      
		  {CC1201_AGC_CS_THR,        0x01},
		  {CC1201_AGC_GAIN_ADJUST,   0xB0},//offset of RSSI -80dB 0xB0
		  {CC1201_AGC_CFG1,          0x12},
		  {CC1201_AGC_CFG0,          0x80},
		  {CC1201_FIFO_CFG,          0x00},
		  {CC1201_FS_CFG,            0x12},
		  {CC1201_PKT_CFG2,          0x00},
		  {CC1201_PKT_CFG1,          0x01},//No use CRC on hardware
		                                                           //Follow after data byte will be  RSSI byte, and CRC_NG bit, LQI (7bit),
		  {CC1201_RFEND_CFG0,        0x30},//After transfer will automatically change to receiver
		  {CC1201_RFEND_CFG1,        0x3E},//After receiver will automatically change to receiver
		  {CC1201_PA_CFG1,           0x3F},//PA_CFG1bit5:0
		  {CC1201_PKT_LEN,           0x09},//fixed 9 bytes
		  {CC1201_IF_MIX_CFG,        0x1C},
		  {CC1201_TOC_CFG,           0x03},
		  {CC1201_MDMCFG2,           0x02},
		  {CC1201_FREQ2,             0x5C}, //920.0Mhz
		  {CC1201_FREQ1,             0x00}, //920.0Mhz
		  {CC1201_FREQ0,             0x00}, //920.0Mhz
		  {CC1201_IF_ADC1,           0xEE},
		  {CC1201_IF_ADC0,           0x10},
		  {CC1201_FS_DIG1,           0x04},
		  {CC1201_FS_DIG0,           0x55},
		  {CC1201_FS_CAL1,           0x40},
		  {CC1201_FS_CAL0,           0x0E},
		  {CC1201_FS_DIVTWO,         0x03},
		  {CC1201_FS_DSM0,           0x33},
		  {CC1201_FS_DVC0,           0x17},
		  {CC1201_FS_PFD,            0x00},
		  {CC1201_FS_PRE,            0x6E},
		  {CC1201_FS_REG_DIV_CML,    0x1C},
		  {CC1201_FS_SPARE,          0xAC},
		  {CC1201_FS_VCO0,           0xB5},
		  {CC1201_IFAMP,             0x09},
		  {CC1201_XOSC5,             0x0E},
		  {CC1201_XOSC1,             0x03},
		  {CC1201_PARTNUMBER,        0x21},
		  {CC1201_PARTVERSION,       0x11},
		  {CC1201_MODEM_STATUS1,     0x10},
};
ther frequencies it is -100dB

I checked with 915.25/919.75/920.25/920.6 Mhz, the Receiver Sensitivity is 100dB.

I used almost setting from SmartRF. I include setting parameter  on txt file , If someOne did or pretend to do with 920Mhz, please share the result.

On this Txt file i use 4bytes preamble, 4 bytes synwords, 9 bytes fixed data length, disable CRC, 2GFSK, 25kbps, 12.5khz Deviation, RXFilterBW 50khz.

By anyway, thanks for your interest.