CC1311P3: CC1311P3

Alex Katsovich

Part Number: CC1311P3

Hello,

We are trying to replace the current using chip CC-430 to new one CC-1311.

Does somebody can give some tips/help how to find a correlation between RF registers and configurations of CC-430 and CC-1311.

I attached to this topic a text file with today using registers of CC-430.

I will be appreciate to any tips and help.

Thanks,

Alex Katsovich

RF Config.txt

//////////////////////////
//        433 Mhz       //
//////////////////////////
#ifdef MOD_2GFSK_38_4KBPS
#error "For 433Mhz band ,2GFSK @ 38.4KBPS  is not yet implemented !!!"
#elif defined(MOD_2GFSK_250KBPS) //250K 2GFSK 433Mhz highest sensitivity
static const RF_SETTINGS s_rfSettings_433 = {
    //0x08,  // 0x0C,  // FSCTRL1       Frequency Synthesizer Control
    0x0C,//

    //0x00,//0x2D,  // IOCFG0        GDO0 Output Configuration
    0x06,

    0x00,  // FSCTRL0       Frequency Synthesizer Control
    0x10,  // FREQ2         Frequency Control Word, High Byte
    0xA7,  // FREQ1         Frequency Control Word, Middle Byte
    0x62,  // FREQ0         Frequency Control Word, Low Byte
    0x2D,  // MDMCFG4       Modem Configuration
    0x3B,  // MDMCFG3       Modem Configuration
    0x13,  //0x10,  // MDMCFG2       Modem Configuration
    0x22,  // MDMCFG1       Modem Configuration
    0xF8,  // MDMCFG0       Modem Configuration
    0x00,  // CHANNR        Channel Number
    0x62,  // DEVIATN       Modem Deviation Setting
    0xB6,  // FREND1        Front End RX Configuration
    0x10,  // FREND0        Front End TX Configuration
    0x10,  // MCSM0         Main Radio Control State Machine Configuration
    0x1D,  // FOCCFG        Frequency Offset Compensation Configuration
    0x1C,  // BSCFG         Bit Synchronization Configuration
    0xC7,  // AGCCTRL2      AGC Control
    0x00,  // AGCCTRL1      AGC Control
    0xB0,  // AGCCTRL0      AGC Control
    0xEA,  // FSCAL3        Frequency Synthesizer Calibration
    0x2A,  // FSCAL2        Frequency Synthesizer Calibration
    0x00,  // FSCAL1        Frequency Synthesizer Calibration
    0x1F,  // FSCAL0        Frequency Synthesizer Calibration
    0x59,  // FSTEST        Frequency Synthesizer Calibration Control
    0x88,  // TEST2         Various Test Settings
    0x31,  // TEST1         Various Test Settings
    0x09,  // TEST0         Various Test Settings
    0x07,  // FIFOTHR       RX FIFO and TX FIFO Thresholds
    0x29,  //0x0B,  // IOCFG2        GDO2 Output Configuration
    0x04,  // PKTCTRL1      Packet Automation Control
    0x05,  //0x12,  // PKTCTRL0      Packet Automation Control
    0x00,  // ADDR          Device Address
    0x3F   //0xFF  // PKTLEN        Packet Length
};

over 1 year ago

0 ZC over 1 year ago

TI__Genius 15605 points

Hi Alex,

Please see the following as it was written for exactly this purpose: https://dev.ti.com/tirex/explore/content/simplelink_cc13xx_cc26xx_sdk_7_10_01_24/docs/proprietary-rf/proprietary-rf-users-guide/proprietary-rf/cc1101-migration.html#migrating-from-cc1101

We recommend using one of our LaunchPad development boards and using it with SmartRF Studio 7 alongside your CC430 product.

We do not have a CC1311x LaunchPad that is optimised specifically for 433 MHz, but you could use either a LAUNCHXL-CC1352P-4 or LP-CC1352P7-4 LaunchPad for finding the PHY settings as they will be the same for the CC1311x. The CC13x2 and CC1311x devices use the same RF front-end.

Otherwise, you could use a LP-CC1311P3 LaunchPad (https://www.ti.com/tool/LP-CC1311P3) and modify the BOM to use the 433 MHz path from one of the boards mentioned above (the 433 MHz paths are the same).

SmartRF Studio will enable you to:

Check that the CC1311x settings are backwards-compatible (if it needs to be).
Easily modify both the CC430 and CC1311x registers.
Export the CC1311x settings for use with the SDK.

Regards,

Zack

0 Alex Katsovich over 1 year ago in reply to ZC

Prodigy 150 points

Thank you Zack.

Additional question:

Transmit from CC1311 and receive via CC1311 works ok (using evaluation boards for both).

Transmit from CC1311 and receive via CC430 (using old product that still has CC430) not works. This is point that we can't resolve. May be you can give us any tips which registers are should be checked in first .

Thanks,

Alex

0 TheGhostOf over 1 year ago in reply to Alex Katsovich

Mastermind 6360 points

A very common issue in cases like this is frequency offset between the "old" and "new" products. Are you able to check this? I assume that you are using the same sync word, data rate, deviation etc on both sides.

0 ZC over 1 year ago in reply to Alex Katsovich

TI__Genius 15605 points

Regarding possible frequency offset issues mentioned by TheGhostOf, please see SWRA122 (CC11xx Sensitivity Versus Frequency Offset and Crystal Accuracy): https://www.ti.com/lit/swra122

The same principle of accounting for the crystal tolerances applies for the CC1311.

If this does not resolve the latest issue, details of the PHY settings used by both devices will probably be needed as a next step so we can check them.

Regards,
Zack

0 Alex Katsovich over 1 year ago in reply to ZC

Prodigy 150 points

Hi Zack,

I think we found the issue - wrong sync word.

Thanks,

Alex

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CC1311P3: CC1311P3