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CCS/CC1310: WOR change RF frequency

Part Number: CC1310

Tool/software: Code Composer Studio

Hi, I want to change the frequency of Wake On Radio function. I modified the Wake On Radio example in sdk 3.20.00.23

I replaced the smartrf_settings.c and smartrf_settings.h files in the project with those exported from smartrf studio 7

smartrf_settings.c

//*********************************************************************************
// Generated by SmartRF Studio version 2.11.0 (build#126)
// The applied template is compatible with CC13x0 SDK 1.60.xx.xx
// Device: CC1310 Rev. 2.1 (Rev. B)
//
//*********************************************************************************


//*********************************************************************************
// Parameter summary
// Address: 0 
// Address0: 0xAA 
// Address1: 0xBB 
// Frequency: 915.00000 MHz
// Data Format: Serial mode disable 
// Deviation: 195.000 kHz
// pktLen: 30 
// 802.15.4g Mode: 0 
// Select bit order to transmit PSDU octets:: 1 
// Packet Length Config: Variable 
// Max Packet Length: 255 
// Packet Length: 64 
// Packet Data: 255 
// RX Filter BW: 622 kHz
// Symbol Rate: 480.00031 kBaud
// Sync Word Length: 32 Bits 
// TX Power: 12.5 dBm (requires define CCFG_FORCE_VDDR_HH = 0 in ccfg.c, see CC13xx/CC26xx Technical Reference Manual)
// Whitening: CC1101/CC2500 compatible 

#include <ti/devices/DeviceFamily.h>
#include DeviceFamily_constructPath(driverlib/rf_mailbox.h)
#include DeviceFamily_constructPath(driverlib/rf_common_cmd.h)
#include DeviceFamily_constructPath(driverlib/rf_prop_cmd.h)
#include <ti/drivers/rf/RF.h>
#include DeviceFamily_constructPath(rf_patches/rf_patch_cpe_wb_dsss.h)
#include DeviceFamily_constructPath(rf_patches/rf_patch_rfe_wb_dsss.h)
#include DeviceFamily_constructPath(rf_patches/rf_patch_mce_wb_dsss.h)
#include "smartrf_settings.h"


// TI-RTOS RF Mode Object
RF_Mode RF_prop =
{
    .rfMode = RF_MODE_PROPRIETARY_SUB_1,
    .cpePatchFxn = &rf_patch_cpe_wb_dsss,
    .mcePatchFxn = &rf_patch_mce_wb_dsss,
    .rfePatchFxn = &rf_patch_rfe_wb_dsss,
};


// Overrides for CMD_PROP_RADIO_DIV_SETUP
uint32_t pOverrides[] =
{
    // override_use_patch_wb_dsss.xml
    // PHY: Use MCE RAM patch, RFE RAM patch
    MCE_RFE_OVERRIDE(1,0,0,1,0,0),
    // override_synth_prop_863_930_div5.xml
    // Synth: Set recommended RTRIM to 7
    HW_REG_OVERRIDE(0x4038,0x0037),
    // Synth: Set Fref to 4 MHz
    (uint32_t)0x000684A3,
    // Synth: Configure fine calibration setting
    HW_REG_OVERRIDE(0x4020,0x7F00),
    // Synth: Configure fine calibration setting
    HW_REG_OVERRIDE(0x4064,0x0040),
    // Synth: Configure fine calibration setting
    (uint32_t)0xB1070503,
    // Synth: Configure fine calibration setting
    (uint32_t)0x05330523,
    // Synth: Set loop bandwidth after lock to 20 kHz
    (uint32_t)0x0A480583,
    // Synth: Set loop bandwidth after lock to 20 kHz
    (uint32_t)0x7AB80603,
    // Synth: Configure VCO LDO (in ADI1, set VCOLDOCFG=0x9F to use voltage input reference)
    ADI_REG_OVERRIDE(1,4,0x9F),
    // Synth: Configure synth LDO (in ADI1, set SLDOCTL0.COMP_CAP=1)
    ADI_HALFREG_OVERRIDE(1,7,0x4,0x4),
    // Synth: Use 24 MHz XOSC as synth clock, enable extra PLL filtering
    (uint32_t)0x02010403,
    // Synth: Configure extra PLL filtering
    (uint32_t)0x00108463,
    // Synth: Increase synth programming timeout (0x04B0 RAT ticks = 300 us)
    (uint32_t)0x04B00243,
    // override_synth_disable_bias_div5.xml
    // Synth: Set divider bias to disabled
    HW32_ARRAY_OVERRIDE(0x405C,1),
    // Synth: Set divider bias to disabled (specific for loDivider=5)
    (uint32_t)0x18000200,
    // override_phy_gfsk_rx.xml
    // Rx: Set LNA bias current trim offset to 3
    (uint32_t)0x00038883,
    // Rx: Freeze RSSI on sync found event
    HW_REG_OVERRIDE(0x6084,0x35F1),
    // override_phy_wb_dsss_spreading_1.xml
    // Set correlation threshold to 0x48
    HW_REG_OVERRIDE(0x5108,0x0048),
    // Enable PA ramping of 5 us and AGC reference level of 0x1E
    HW_REG_OVERRIDE(0x6088,0x1F1E),
    // Set spreading = 1, K = 4
    HW_REG_OVERRIDE(0x52AC,0x0800),
    // Tx: Configure PA ramping setting (0x08) for approximately 5 us PA ramp time
    HW_REG_OVERRIDE(0x608C,0x3F13),
    // TX: set intFreq = 0
    (uint32_t)0x00000343,
    // override_phy_rx_rssi_offset_5db.xml
    // Rx: Set RSSI offset to adjust reported RSSI by +5 dB (default: 0), trimmed for external bias and differential configuration
    (uint32_t)0x00FB88A3,
    (uint32_t)0xFFFFFFFF
};


// CMD_PROP_RADIO_DIV_SETUP
// Proprietary Mode Radio Setup Command for All Frequency Bands
rfc_CMD_PROP_RADIO_DIV_SETUP_t RF_cmdPropRadioDivSetup =
{
    .commandNo = 0x3807,
    .status = 0x0000,
    .pNextOp = 0, // INSERT APPLICABLE POINTER: (uint8_t*)&xxx
    .startTime = 0x00000000,
    .startTrigger.triggerType = 0x0,
    .startTrigger.bEnaCmd = 0x0,
    .startTrigger.triggerNo = 0x0,
    .startTrigger.pastTrig = 0x0,
    .condition.rule = 0x1,
    .condition.nSkip = 0x0,
    .modulation.modType = 0x1,
    .modulation.deviation = 0x30C,
    .symbolRate.preScale = 0xF,
    .symbolRate.rateWord = 0x4CCCD,
    .symbolRate.decimMode = 0x0,
    .rxBw = 0x2C,
    .preamConf.nPreamBytes = 0x5,
    .preamConf.preamMode = 0x1,
    .formatConf.nSwBits = 0x20,
    .formatConf.bBitReversal = 0x0,
    .formatConf.bMsbFirst = 0x0,
    .formatConf.fecMode = 0x8,
    .formatConf.whitenMode = 0x1,
    .config.frontEndMode = 0x0,
    .config.biasMode = 0x1,
    .config.analogCfgMode = 0x0,
    .config.bNoFsPowerUp = 0x0,
    .txPower = 0xA63F,
    .pRegOverride = pOverrides,
    .centerFreq = 0x0393,
    .intFreq = 0x0B33,
    .loDivider = 0x05
};


// CMD_FS
// Frequency Synthesizer Programming Command
rfc_CMD_FS_t RF_cmdFs =
{
    .commandNo = 0x0803,
    .status = 0x0000,
    .pNextOp = 0, // INSERT APPLICABLE POINTER: (uint8_t*)&xxx
    .startTime = 0x00000000,
    .startTrigger.triggerType = 0x0,
    .startTrigger.bEnaCmd = 0x0,
    .startTrigger.triggerNo = 0x0,
    .startTrigger.pastTrig = 0x0,
    .condition.rule = 0x1,
    .condition.nSkip = 0x0,
    .frequency = 0x0393,
    .fractFreq = 0x0000,
    .synthConf.bTxMode = 0x0,
    .synthConf.refFreq = 0x0,
    .__dummy0 = 0x00,
    .__dummy1 = 0x00,
    .__dummy2 = 0x00,
    .__dummy3 = 0x0000
};


// CMD_PROP_TX
// Proprietary Mode Transmit Command
rfc_CMD_PROP_TX_t RF_cmdPropTx =
{
    .commandNo = 0x3801,
    .status = 0x0000,
    .pNextOp = 0, // INSERT APPLICABLE POINTER: (uint8_t*)&xxx
    .startTime = 0x00000000,
    .startTrigger.triggerType = 0x0,
    .startTrigger.bEnaCmd = 0x0,
    .startTrigger.triggerNo = 0x0,
    .startTrigger.pastTrig = 0x0,
    .condition.rule = 0x1,
    .condition.nSkip = 0x0,
    .pktConf.bFsOff = 0x0,
    .pktConf.bUseCrc = 0x1,
    .pktConf.bVarLen = 0x1,
    .pktLen = 0x40,
    .syncWord = 0x00000000,
    .pPkt = 0 // INSERT APPLICABLE POINTER: (uint8_t*)&xxx
};


// CMD_PROP_RX
// Proprietary Mode Receive Command
rfc_CMD_PROP_RX_t RF_cmdPropRx =
{
    .commandNo = 0x3802,
    .status = 0x0000,
    .pNextOp = 0, // INSERT APPLICABLE POINTER: (uint8_t*)&xxx
    .startTime = 0x00000000,
    .startTrigger.triggerType = 0x0,
    .startTrigger.bEnaCmd = 0x0,
    .startTrigger.triggerNo = 0x0,
    .startTrigger.pastTrig = 0x0,
    .condition.rule = 0x1,
    .condition.nSkip = 0x0,
    .pktConf.bFsOff = 0x0,
    .pktConf.bRepeatOk = 0x0,
    .pktConf.bRepeatNok = 0x0,
    .pktConf.bUseCrc = 0x1,
    .pktConf.bVarLen = 0x1,
    .pktConf.bChkAddress = 0x0,
    .pktConf.endType = 0x0,
    .pktConf.filterOp = 0x0,
    .rxConf.bAutoFlushIgnored = 0x0,
    .rxConf.bAutoFlushCrcErr = 0x0,
    .rxConf.bIncludeHdr = 0x1,
    .rxConf.bIncludeCrc = 0x0,
    .rxConf.bAppendRssi = 0x0,
    .rxConf.bAppendTimestamp = 0x0,
    .rxConf.bAppendStatus = 0x1,
    .syncWord = 0x00000000,
    .maxPktLen = 0xFF,
    .address0 = 0xAA,
    .address1 = 0xBB,
    .endTrigger.triggerType = 0x1,
    .endTrigger.bEnaCmd = 0x0,
    .endTrigger.triggerNo = 0x0,
    .endTrigger.pastTrig = 0x0,
    .endTime = 0x00000000,
    .pQueue = 0, // INSERT APPLICABLE POINTER: (dataQueue_t*)&xxx
    .pOutput = 0 // INSERT APPLICABLE POINTER: (uint8_t*)&xxx
};

smartrf_settings.h

#ifndef _SMARTRF_SETTINGS_H_
#define _SMARTRF_SETTINGS_H_

//*********************************************************************************
// Generated by SmartRF Studio version 2.11.0 (build#126)
// The applied template is compatible with CC13x0 SDK 1.60.xx.xx
// Device: CC1310 Rev. 2.1 (Rev. B)
//
//*********************************************************************************
#include <ti/devices/DeviceFamily.h>
#include DeviceFamily_constructPath(driverlib/rf_mailbox.h)
#include DeviceFamily_constructPath(driverlib/rf_common_cmd.h)
#include DeviceFamily_constructPath(driverlib/rf_prop_cmd.h)
#include <ti/drivers/rf/RF.h>


// TI-RTOS RF Mode Object
extern RF_Mode RF_prop;

// RF Core API commands
extern rfc_CMD_PROP_RADIO_DIV_SETUP_t RF_cmdPropRadioDivSetup;
extern rfc_CMD_FS_t RF_cmdFs;
extern rfc_CMD_PROP_TX_t RF_cmdPropTx;
extern rfc_CMD_PROP_RX_t RF_cmdPropRx;

// RF Core API Overrides
extern uint32_t pOverrides[];

#endif // _SMARTRF_SETTINGS_H_

and I have changed this in rfWakeOnRadioRX.c :

#define WOR_RF_PHY_DATARATE WOR_RF_PHY_DATARATE_500KBPS

I have change it to 500KBPS since the rate is 480KBPS

However, the launchpad running RX could not receive anything from the TX launchpad. I have another launchpad act as a sniffer, and with the same settings shown in the smartrf_settings.c, the sniffer are able to show the packets sent correctly. (so i assume the TX part has no problem...)

Is there anything else that I need to set/ change in the project?

Thanks

  • Hi,

    I will assign an expert to comment.

    Regards,

  • Hi

    You have not just changed the frequency of the WOR example, you have changed the PHY (to WB_DSSS).

    The WOR example, as it is by default, uses both preamble (PQT) and RSSI to determine if there is a signal present or not. PQT will not work with WB-DSSS, as this PHY uses a 64 bits long sync word, meaning that both correlators are used for sync search and there are no correlators letf for preamble.

    I will assume that the RSSI part of the sniff command will still work, but I do not think it makes much sense to make a sniff operation based on RSSI alone, as it will give a lot of false wakeups.

    The different #define WOR_RF_PHY_DATARATE is to be used if you changes data rate using the other data rates in Studio that uses the genfsk PHY (&rf_patch_xxx_genfsk).

    If you select a data rate not defined (150 kbps), you might need to manually re-calculate some of the sniff mode parameters.

    BR

    Siri