Original question:
LAUNCHXL-CC1350-4: How to set txpower to 0bdm or -10dbm at 433M 1.5Mbps HSM
Dear TI Experts,
More than a year ago, I've posted a question about how to set tx power to a lower value, for in smart RF studio, there are only >6dbm txpower setting at 433M, and I've got the reply that this is not available.
I want to know, if there is any improvement for this requirment now, if CC13xx can set a lower TX power accurately, it will reduce the total system power.
Thanks a lot for your attention.
Dear TER,
Below is the setting code, could you kindly help to check? Thanks a lot.
The Chinese comment's meaning is "TX Power Setting"
/*
****************************************************************************
* Copyright(C): JIFU Technology
* FileName : rf_parameter_settings.c
* Description : ��Ƶ����
****************************************************************************
*/
#include <ti/devices/cc13x0/driverlib/rf_mailbox.h>
#include <ti/devices/cc13x0/driverlib/rf_hs_mailbox.h>
#include <ti/devices/cc13x0/driverlib/rf_common_cmd.h>
#include <ti/devices/cc13x0/driverlib/rf_hs_cmd.h>
#include <ti/devices/cc13x0/driverlib/rf_prop_cmd.h>
#include <ti/drivers/rf/RF.h>
#include <ti/devices/cc13x0/rf_patches/rf_patch_cpe_genfsk.h>
#include <ti/devices/cc13x0/rf_patches/rf_patch_rfe_genfsk.h>
#include <ti/devices/cc13x0/rf_patches/rf_patch_rfe_hsp_4mbps.h>
#include <ti/devices/cc13x0/rf_patches/rf_patch_mce_hsp_4mbps.h>
#include "apply_ghs_mce_patch.h"
#include "apply_ghs_rfe_patch.h"
#include "rf_parameter_settings.h"
RF_Mode RF_prop_hsm =
{
.rfMode = RF_MODE_PROPRIETARY_SUB_1,
.cpePatchFxn = &rf_patch_cpe_genfsk,
.mcePatchFxn = &enterGhsMcePatch,
.rfePatchFxn = &enterGhsRfePatch,
};
// Overrides for CMD_RADIO_SETUP 4FSK
uint32_t pOverrides_4FSK[] =
{
MCE_RFE_OVERRIDE(1, 0, 0, 1, 0, 0), // Patch
ADI_HALFREG_OVERRIDE(0,61,0xF,0x0),
// Synth: Set recommended RTRIM to 7
HW_REG_OVERRIDE(0x4038,0x0037),
// Synth: Set Fref to 4 MHz
(uint32_t)0x000684A3,
HW_REG_OVERRIDE(0x4020,0x7F00),
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,
(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
(uint32_t)0x04B00243,
//Override synth_disbale_bias_div10.xml
//Synth:Set divider bias disbaled
HW32_ARRAY_OVERRIDE(0x405C,1),
//Specific for loDivider 10
(uint32_t)0x18000280,
// override_phy_gfsk_rx.xml
// Rx: Set LNA bias current trim offset to 3
(uint32_t)0x00038883,
// override_frontend_xd.xml
// Rx: Set RSSI offset to adjust reported RSSI by -2 dB
(uint32_t)0x000288A3, // 0x00FB88A3,
HW_REG_OVERRIDE(0x5104,0x302B),
// Rx: Freeze RSSI on sync found event
HW_REG_OVERRIDE(0x6084,0x35F1),
(uint32_t) 0x002C82C3,
(uint32_t) 0x002882D3,
// override_phy_gfsk_pa_ramp_agc_reflevel_0x1a.xml
// Tx: Enable PA ramping (0x41). Rx: Set AGC reference level to 0x31.
HW_REG_OVERRIDE(0x6088,0x4231),
// PA Ramping overrides
HW_REG_OVERRIDE(0x608C,0x0A13),
// Length of CW tone
HW_REG_OVERRIDE(0x52B0,0x01E0),
// TX power override
// Tx: Set PA trim to max (in ADI0, set PACTL0=0xF8)
ADI_REG_OVERRIDE(0,12,0xF8),
(uint32_t)0x00018063,
(uint32_t)0xFFFFFFFF, // End Override
};
// CMD_PROP_RADIO_DIV_SETUP for 4FSK TX
rfc_CMD_PROP_RADIO_DIV_SETUP_t RF_cmdPropRadioDivSetup_4FSK_tx =
{
.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, // 1 = GFSK / 0 = FSK
.modulation.deviation = 560, // Outersymbols, 420 kHz
.symbolRate.preScale = 8,
.symbolRate.rateWord = 262144, // 750ksps
.rxBw = 48, // ~2MHz
.preamConf.nPreamBytes = 0x6, // Start with 6
.preamConf.preamMode = 0x1,
.formatConf.nSwBits = 0x20,
.formatConf.bBitReversal = 0x0,
.formatConf.bMsbFirst = 0x1,
.formatConf.fecMode = 9, // 4-ary
.formatConf.whitenMode = 0x0,
.config.frontEndMode = 0x06,
.config.biasMode = 0x1,
.config.bNoFsPowerUp = 0x0,
.txPower = 0x22c4, //6dBm 0x04C0, //-10dBm 0x12c3,//0dBm
.pRegOverride = pOverrides_4FSK,
.centerFreq = 0x01B1, //433Mhz 0x01AF,//431Mhz
.intFreq = 0x8000,
.loDivider = 0x0A,
};
// CMD_PROP_RADIO_DIV_SETUP for 4FSK RX
rfc_CMD_PROP_RADIO_DIV_SETUP_t RF_cmdPropRadioDivSetup_4FSK_rx =
{
.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, // 1 = GFSK / 0 = FSK
.modulation.deviation = 560, // Outersymbols, 420 kHz
.symbolRate.preScale = 8,
.symbolRate.rateWord = 262144, // 750ksps
.rxBw = 48, // ~2MHz
.preamConf.nPreamBytes = 0x6, // Start with 6
.preamConf.preamMode = 0x1,
.formatConf.nSwBits = 0x20,
.formatConf.bBitReversal = 0x0,
.formatConf.bMsbFirst = 0x1,
.formatConf.fecMode = 9, // 4-ary
.formatConf.whitenMode = 0x0,
.config.frontEndMode = 0x06,
.config.biasMode = 0x1,
.config.bNoFsPowerUp = 0x0,
.txPower = 0x22c4, //6dBm 0x12c3,//0dBm
.pRegOverride = pOverrides_4FSK,
.centerFreq = 0x01B1, //433Mhz
.intFreq = 0x0A66,
.loDivider = 0x0A,
};
// CMD_FS
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 = 0x01B1, //433Mhz
.fractFreq = 0xEB85,
.synthConf.bTxMode = 0x1,
.synthConf.refFreq = 0x0,
.__dummy0 = 0x00,
.__dummy1 = 0x00,
.__dummy2 = 0x00,
.__dummy3 = 0x0000,
};
// CMD_TX_HS
rfc_CMD_HS_TX_t RF_cmdTxHS =
{
.commandNo = 0x3841,
.status = 0x0000,
.pNextOp = 0x00000000,
.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,
.pQueue = 0,
};
// CMD_RX_HS
rfc_CMD_HS_RX_t RF_cmdRxHS =
{
.commandNo = CMD_HS_RX,
.status = 0x0000,
.pNextOp = 0x00000000,
.startTime = 0x00000000,
.startTrigger.triggerType = 0x0,
.startTrigger.bEnaCmd = 0x0,
.startTrigger.triggerNo = 0x0,
.startTrigger.pastTrig = 0x0,
.condition.rule = 0x1,
.condition.nSkip = 0x0,
.pktConf.bFsOff = 0,
.pktConf.bUseCrc = 1,
.pktConf.bVarLen = 1,
.pktConf.bRepeatOk = 0,
.pktConf.bRepeatNok = 0,
.pktConf.addressMode = 0,
.rxConf.bAutoFlushCrcErr = 0,
.rxConf.bIncludeLen = 1,
.rxConf.bIncludeCrc = 0,
.rxConf.bAppendStatus = 0,
.rxConf.bAppendTimestamp = 0,
.maxPktLen = 0,
.address0 = 0,
.address1 = 0,
.__dummy0 = 0,
.endTrigger.triggerType = 1,
.endTrigger.bEnaCmd = 0,
.endTrigger.triggerNo = 0,
.endTrigger.pastTrig = 0,
.endTime = 0,
.pQueue = 0,
.pOutput = 0,
};
Dear TER,
Below is their RF measurements setting. For customer's CC1310EVM is broken, they don't have the SmartRF studio CW test data.
