Other Parts Discussed in Thread: CC1101
I am working on a project to use the TI platform to monitor communications between two devices that are based on the CC1101. The two proprietary devices work fine, but, I can't seem to capture anything with the sniffer. Other than the crystal frequency, the proprietary systems are identical to the TI module for the CC1101 that plugs into the SmartFR04 (we use 27Mhz). I thought I had translated the registers to work with a 26Mhz receiver, but am stymied. Here are the registers as captured from our firmware and as set up on the sniffer:
Address Register Device Sniffer Note
0x00 IOCFG2 0x06 N/A Pin output function insignificant
0x01 IOCFG1 0x2E N/A Pin output function insignificant
0x02 IOCFG0 0x09 N/A Pin output function insignificant
0x03 FIFOTHR 0x0A ? Probably should be Sniffer defaule
0x04 SYNC1 0x1D 0x1D
0x05 SYNC0 0x96 0x96
0x06 PKTLEN 0xFF 0xFF
0x07 PKTCTRL1 0x04 0x04
0x08 PKTCTRL0 0x45 0x45
0x09 ADDR 0x00 0x00
0x0A CHANNR 0x00 0x00
0x0B FSCTRL1 0x06 0x06
0x0C FSCTRL0 0x00 0x00
0x0D FREQ2 0x21 0x23 Changed for crystal differences
0x0E FREQ1 0xF6 0x44 Changed for crystal differences
0x0F FREQ0 0x84 0xEC Changed for crystal differences
0x10 MDMCFG4 0xF7 0xF7
0x11 MDMCFG3 0x75 0x83 Changed for crystal to get 4.8Kb
0x12 MDMCFG2 0x03 0x03
0x13 MDMCFG1 0x20 0x20
0x14 MDMCFG0 0x00 0x00
0x15 DEVIATN 0x00 0x00 Min deviation, might do better as 0x10 or 0x01??
0x16 MCSM2 0x07 0x07
0x17 MCSM1 0x10 0x10
0x18 MCSM0 0x18 0x18
0x19 FOCCFG 0x36 0x36
0x1A BSCFG 0x6C 0x6C
0x1B AGCTRL2 0x03 0x03
0x1C AGCTRL1 0x40 0x40
0x1D AGCTRL0 0x91 0x91
0x1E WOREVT1 0x87 0x87
0x1F WOREVT0 0x6B 0x6B
0x20 WORCTRL 0xFB 0xFB
0x21 FREND1 0x56 0x56
0x22 FREND0 0x10 0x10
0x23 FSCAL3 0xE9 0xE9
0x24 FSCAL2 0x2A 0x2A
0x25 FSCAL1 0x00 0x00
0x26 FSCAL0 0x1F 0x1F
0x27 RCCTRL1 0x41 0x41
0x28 RCCTRL0 0x00 0x00
0x29 FSTEST 0x59 0x59
0x2A PTEST 0x7F 0x7F
0x2B AGCTEST 0x3F 0x3F
0x2C TEST2 0x81 0x81
0x2D TEST1 0x35 0x35
0x2E TEST0 0x09 0x09
I am ordering 27Mhz crystals but if it can get fixed with just a different configuration that would be better.
