Hi All,
I am doing some tests to achieve optimum range. to do that. I am comparing my results with eval board. I have two custom board and one eval. One of my custom board is transmitter. Second one ise receiver.
I put my transmitter custom board 1.5m far from receiver custom board and eval board.
as you can see in up picture, there is a one receiver board and one eval to see rssi value on device control panel. to see rssi value on control panel. I delete all code from board using flash programmer. thus I was able to see rssi value on both board. the distance and transmitted data is same for both board.
So the rssi value that I see on control panel is around -(38/39) dbm for both board. Thats mean when there is no code inside board everything is okay I think.
But When I put code on receiver custom board, the rssi value that I see on the hterm is around -49dbm. You can see the results in the below picture.
According the results, The optimum rssi value that I am able to achieve is around -38 or -39 dbm. But I achieve -49 dbm.
What can I do to achieve optimum rssi value? or how to improve -49 dbm value.? Rf smartsetting file is also below.
//*********************************************************************************
// Generated by SmartRF Studio version 2.19.0 (build#255)
// The applied template is compatible with CC13x0 SDK version 2.10.xx.xx or newer.
// Device: CC1310 Rev. A (2.0).
//
//*********************************************************************************
//*********************************************************************************
// Parameter summary
// RX Address0: 0xAA
// RX Address1: 0xBB
// RX Address Mode: No address check
// Frequency: 868.00000 MHz
// Data Format: Serial mode disable
// Deviation: 25.000 kHz
// Packet Length Config: Variable
// Max Packet Length: 128
// Packet Length: 20
// Packet Data: 255
// RX Filter BW: 98 kHz
// Symbol Rate: 50.00000 kBaud
// Sync Word Length: 32 Bits
// TX Power: 14 dBm
// Whitening: No whitening
#include <driverlib/rf_mailbox.h>
#include <driverlib/rf_common_cmd.h>
#include <driverlib/rf_prop_cmd.h>
#include <ti/drivers/rf/RF.h>
#include <rf_patches/rf_patch_cpe_lrm.h>
#include <rf_patches/rf_patch_rfe_lrm.h>
#include <rf_patches/rf_patch_cpe_genook.h>
#include <rf_patches/rf_patch_rfe_genook.h>
#include <rf_patches/rf_patch_mce_genook.h>
#include <rf_patches/rf_patch_cpe_genfsk.h>
#include <rf_patches/rf_patch_rfe_genfsk.h>
#include "smartrf_settings.h"
//////////////////////////////////////////////BEST EVER SMARTRF_SETTING-----------------------------
// TI-RTOS RF Mode Object
RF_Mode RF_prop =
{
.rfMode = RF_MODE_PROPRIETARY_SUB_1,
.cpePatchFxn = &rf_patch_cpe_genfsk,
.mcePatchFxn = 0,
.rfePatchFxn = &rf_patch_rfe_genfsk
};
// Overrides for CMD_PROP_RADIO_DIV_SETUP
uint32_t pOverrides[] =
{
// override_use_patch_prop_genfsk.xml
// PHY: Use MCE ROM bank 4, RFE RAM patch
MCE_RFE_OVERRIDE(0,4,0,1,0,0),
// 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_phy_rx_aaf_bw_0xd.xml
// Rx: Set anti-aliasing filter bandwidth to 0xD (in ADI0, set IFAMPCTL3[7:4]=0xD)
ADI_HALFREG_OVERRIDE(0,61,0xF,0xD),
// 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_gfsk_pa_ramp_agc_reflevel_0x1a.xml
// Tx: Configure PA ramping setting (0x41). Rx: Set AGC reference level to 0x1A.
HW_REG_OVERRIDE(0x6088,0x411A),
// Tx: Configure PA ramping setting
HW_REG_OVERRIDE(0x608C,0x8213),
// 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,
// TX power override
// Tx: Set PA trim to max (in ADI0, set PACTL0=0xF8)
ADI_REG_OVERRIDE(0,12,0xF8),
(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 = 0x64,
.symbolRate.preScale = 0xF,
.symbolRate.rateWord = 0x8000,
// .symbolRate.decimMode = 0x0,
.rxBw = 0x24,
.preamConf.nPreamBytes = 0x4,
.preamConf.preamMode = 0x0,
.formatConf.nSwBits = 0x20,
.formatConf.bBitReversal = 0x0,
.formatConf.bMsbFirst = 0x1,
.formatConf.fecMode = 0x0,
.formatConf.whitenMode = 0x0,
.config.frontEndMode = 0x0,
.config.biasMode = 0x1,
.config.analogCfgMode = 0x0,
.config.bNoFsPowerUp = 0x0,
.txPower = 0x00C6, //.txPower=00CB,(46-47dbm) 1 DBM DAHA iyi 00C6 e g�re//.txPower=00C6,(47-48dbm) 1 DBM DAHA iyi A73F e g�re//.txPower = 0xA73F, -(49-50dbm)
.pRegOverride = pOverrides,
.centerFreq = 0x0364,
.intFreq = 0x8000,
.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 = 0x0364,
.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 = 0x14,
.syncWord = 0x930B51DE,
.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 = 0x930B51DE,
.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
};
Best Regards
Bekir
