Other Parts Discussed in Thread: SYSCONFIG, CC2340R5
Tool/software:
I am using CC2340-R5 launchpad and running Basic_BLE project in broadcaster mode only with limited advertising. My device advertises 3 packets at interval of 1000ms and disable the advertising, after that i turn on the advertisement again for after 30 sec using a timer clock as shown in the training module. but my power consumption during the non-transmission period is 3.8 mA (checked using power analyser). Below is the code (app_broadcaster.c) with some changes that i have made . i have disabled the LED GPIO's in sysconfig. still the current is high how do i reduce this current to uAmps or nAmps as stated in datasheet
#include "ti_ble_config.h"
#include <ti/bleapp/ble_app_util/inc/bleapputil_api.h>
#include <ti/bleapp/menu_module/menu_module.h>
#include <app_main.h>
#include <ti/drivers/dpl/ClockP.h>
#include <ti/bleapp/ble_app_util/inc/bleapputil_internal.h>
static ClockP_Struct clkPeriodic;
ClockP_Params clockpParams;
ClockP_Handle clockHandle;
//*****************************************************************************
//! constants
//*****************************************************************************
#define ADV_MAX_LEN 18
#define ADVDATA_MANUF_DATA_IDX 5
#define ADVDATA_SENSOR_DATA_IDX (ADVDATA_MANUF_DATA_IDX+B_ADDR_LEN)
#define SP_PERIODIC_EVT_PERIOD 30000
#define CLOCK_MS 1000
#define KEY 0xAA
//*****************************************************************************
//! Prototypes
//*****************************************************************************
void Broadcaster_AdvEventHandler(uint32 event, BLEAppUtil_msgHdr_t *pMsgData);
void Broadcaster_AppEventHandler();
//*****************************************************************************
//! Globals
//*****************************************************************************
uint8_t MACaddress[B_ADDR_LEN];
int8_t u8Temperature = 0;
uint8_t fPressure = 0;
uint8_t fAcc=0;
uint8_t fVolt=100;
uint8_t Vehicle_status=0x02;
uint8_t Sensor_status=0x03;
uint8_t BLE_FW_VER=0x01;
uint8_t TPMS_FW_VER=0x01;
uint8_t incr_temp_flg=1;
uint8_t incr_pres_flg=1;
uint8_t rep_flg=0;
uint8_t rep_cntr=0;
BLEAppUtil_EventHandler_t broadcasterAdvHandler =
{
.handlerType = BLEAPPUTIL_GAP_ADV_TYPE,
.pEventHandler = Broadcaster_AdvEventHandler,
.eventMask = BLEAPPUTIL_ADV_START_AFTER_ENABLE |
BLEAPPUTIL_ADV_END_AFTER_DISABLE|
BLEAPPUTIL_ADV_END
};
//! Store handle needed for each advertise set
uint8 broadcasterAdvHandle_1;
const BLEAppUtil_AdvInit_t broadcasterInitAdvSet1 =
{
/* Advertise data and length */
.advDataLen = sizeof(advData1),
.advData = advData1,
/* Scan respond data and length */
.scanRespDataLen = 0,
.scanRespData = NULL,
.advParam = &advParams1
};
const BLEAppUtil_AdvStart_t broadcasterStartAdvSet1 =
{
.enableOptions =GAP_ADV_ENABLE_OPTIONS_USE_MAX_EVENTS,
.durationOrMaxEvents = 3
};
/*const BLEAppUtil_AdvStart_t broadcasterStartAdvSet1 =
{
.enableOptions = GAP_ADV_ENABLE_OPTIONS_USE_MAX,
.durationOrMaxEvents = 0
};
*/
//*****************************************************************************
//! Functions
//*****************************************************************************
/*********************************************************************
* @fn Broadcaster_AdvEventHandler
*
* @brief The purpose of this function is to handle advertise events
* that rise from the GAP and were registered in
* @ref BLEAppUtil_RegisterGAPEvent
*
* @param event - message event.
* @param pMsgData - pointer to message data.
*
* @return none
*/
void Broadcaster_AdvEventHandler(uint32 event, BLEAppUtil_msgHdr_t *pMsgData)
{
switch(event)
{
case BLEAPPUTIL_ADV_START_AFTER_ENABLE:
{
MenuModule_printf(APP_MENU_ADV_EVENT, 0, "Adv status: Started - handle: "
MENU_MODULE_COLOR_YELLOW "%d" MENU_MODULE_COLOR_RESET,
((BLEAppUtil_AdvEventData_t *)pMsgData)->pBuf->advHandle);
/** New Code **/
BLEAppUtil_AdvEventData_t * pkt = (BLEAppUtil_AdvEventData_t *)pMsgData;
if (pkt->pBuf->advHandle == broadcasterAdvHandle_1)
{
bStatus_t status = FAILURE;
status = GapAdv_prepareLoadByHandle(broadcasterAdvHandle_1, GAP_ADV_FREE_OPTION_DONT_FREE);
if (status != SUCCESS)
for(;;); // Loop
uint8_t ADV_DATA1_LEN = 11;
uint8_t i=0;
uint8_t *devAddr = NULL;
uint8_t pressure =0;
// get MAC address of BLE
devAddr = GAP_GetDevAddress(TRUE);
memcpy( &MACaddress[0], &devAddr[0], 6 );
advData1[i++] = 0x02;
advData1[i++] = GAP_ADTYPE_FLAGS;
advData1[i++] = GAP_ADTYPE_FLAGS_BREDR_NOT_SUPPORTED | GAP_ADTYPE_FLAGS_GENERAL;
advData1[i++] = ADV_MAX_LEN - i - 1; // length of this data
advData1[i++] = GAP_ADTYPE_MANUFACTURER_SPECIFIC;
i=ADVDATA_MANUF_DATA_IDX;
advData1[i++] = MACaddress[5];
advData1[i++] = MACaddress[4];
advData1[i++] = MACaddress[3];
advData1[i++] = MACaddress[2];
advData1[i++] = MACaddress[1];
advData1[i++] = MACaddress[0];
i = ADVDATA_SENSOR_DATA_IDX;
advData1[i++] = Vehicle_status;
advData1[i++] = (u8Temperature+40);
pressure=(fPressure*2.5);
advData1[i++] =pressure;
advData1[i++] = fVolt ;
advData1[i++] = Sensor_status;
advData1[i++] = BLE_FW_VER ;
advData1[i++] = TPMS_FW_VER;
broadcasterAdvHandler.eventMask = BLEAPPUTIL_ADV_END_AFTER_DISABLE;
status = GapAdv_loadByHandle(broadcasterAdvHandle_1,
GAP_ADV_DATA_TYPE_ADV,
ADV_MAX_LEN,
advData1);
if (status != SUCCESS)
for(;;);
ClockP_start(clockHandle);
/** End New Code **/
}
break;
}
case BLEAPPUTIL_ADV_END_AFTER_DISABLE:
{
MenuModule_printf(APP_MENU_ADV_EVENT, 0, "Adv status: Ended - handle: "
MENU_MODULE_COLOR_YELLOW "%d" MENU_MODULE_COLOR_RESET,
// ((BLEAppUtil_AdvEventData_t *)pMsgData)->pBuf->advHandle);
break;
}
default:
{
break;
}
}
}
/*********************************************************************
* @fn Broadcaster_start
*
* @brief This function is called after stack initialization,
* the purpose of this function is to initialize and
* register the specific events handlers of the broadcaster
* application module
*
* @return SUCCESS, errorInfo
*/
bStatus_t Broadcaster_start()
{
bStatus_t status = SUCCESS;
status = BLEAppUtil_registerEventHandler(&broadcasterAdvHandler);
if(status != SUCCESS)
{
// Return status value
return(status);
}
status = BLEAppUtil_initAdvSet(&broadcasterAdvHandle_1, &broadcasterInitAdvSet1);
if(status != SUCCESS)
{
// Return status value
return(status);
}
// Setup parameters.
ClockP_Params_init(&clockpParams);
// Convert clockDuration in milliseconds to ticks.
uint32_t clockTicks = SP_PERIODIC_EVT_PERIOD * (CLOCK_MS/ 1);
// If period is 0, this is a one-shot timer. If not 0, the it’s a periodic clock.
clockpParams.period = 0; //clockTicks;
// Starts immediately after construction if true, otherwise wait for a call
// to start.
clockpParams.startFlag = false;
clockpParams.arg = (uintptr_t)Broadcaster_AppEventHandler;
// Initialize clock instance.
clockHandle = ClockP_construct(&clkPeriodic, (void *)BLEAppUtil_invokeFunctionNoData, clockTicks, &clockpParams);
status = BLEAppUtil_advStart(broadcasterAdvHandle_1, &broadcasterStartAdvSet1);
if(status != SUCCESS)
{
// Return status value
return(status);
}
// Return status value
return(status);
}
void Broadcaster_AppEventHandler()
{
//add your code here
bStatus_t status = FAILURE;
status = GapAdv_prepareLoadByHandle(broadcasterAdvHandle_1, GAP_ADV_FREE_OPTION_DONT_FREE);
if (status != SUCCESS)
for(;;); // Loop
uint8_t ADV_DATA1_LEN = 11;
uint8_t i=0;
uint8_t pressure =0;
advData1[i++] = 0x02;
advData1[i++] = GAP_ADTYPE_FLAGS;
advData1[i++] = GAP_ADTYPE_FLAGS_BREDR_NOT_SUPPORTED | GAP_ADTYPE_FLAGS_GENERAL;
advData1[i++] = ADV_MAX_LEN - i - 1; // length of this data
advData1[i++] = GAP_ADTYPE_MANUFACTURER_SPECIFIC;
i=ADVDATA_MANUF_DATA_IDX;
advData1[i++] = MACaddress[5];
advData1[i++] = MACaddress[4];
advData1[i++] = MACaddress[3];
advData1[i++] = MACaddress[2];
advData1[i++] = MACaddress[1];
advData1[i++] = MACaddress[0];
i = ADVDATA_SENSOR_DATA_IDX;
if(u8Temperature>=100)
incr_temp_flg=0;
if(u8Temperature<=0)
incr_temp_flg=1;
if(incr_temp_flg)
u8Temperature++;
else
u8Temperature--;
if(fPressure>=40)
incr_pres_flg=0;
if(fPressure<=0)
incr_pres_flg=1;
if(incr_pres_flg)
fPressure++;
else
fPressure--;
if((!incr_pres_flg))
Vehicle_status=Vehicle_status|0x04;
else if((incr_pres_flg))
Vehicle_status=Vehicle_status &~ 0x04;
advData1[i++] = Vehicle_status;
advData1[i++] = (u8Temperature+40);
pressure=(fPressure*2.5);
advData1[i++] =pressure ;
advData1[i++] = fVolt ;
advData1[i++] = Sensor_status;
advData1[i++] = BLE_FW_VER;
advData1[i++] = TPMS_FW_VER;
broadcasterAdvHandler.eventMask = BLEAPPUTIL_ADV_END_AFTER_DISABLE;
status = GapAdv_loadByHandle(broadcasterAdvHandle_1,
GAP_ADV_DATA_TYPE_ADV,
ADV_MAX_LEN,
advData1);
BLEAppUtil_advStart(broadcasterAdvHandle_1, &broadcasterStartAdvSet1);
if (status != SUCCESS)
for(;;);
ClockP_start(clockHandle);
/** End New Code **/
}
//#endif //( HOST_CONFIG & ( BROADCASTER_CFG ) )
