Hi:
There are some problems abount power consumtion in my new application(setting cc2541 advertising period 1s and get accleration by MMA8451 before advertising , update the advertise data right away),
It can work normally that get accleartion and advertise per second,but it takes more than 1.7mA during the cc2541 releax time (i nedd to under 1mA even less)
it's my PCB design:
In order to realizing my dest , there are some changes base on SimbleBLEPeripheral demo：
project define in Options:
INT_HEAP_LEN=3072 HALNODEBUG OSAL_CBTIMER_NUM_TASKS=1 xHAL_AES_DMA=TRUE HAL_DMA=TRUE POWER_SAVING xPLUS_BROADCASTER HAL_LCD=TRUE xHAL_LED=FALSE HAL_UART=FALSE
including：
1） change the ADVERTISING INTERVAL #define DEFAULT_ADVERTISING_INTERVAL 1600
2）change adverData[]
static uint8 advertData[] =
{
0x08,
GAP_ADTYPE_MANUFACTURER_SPECIFIC, //FF
0x05,
0,
0,
0,
0,
0,
0,
/*
// Flags; this sets the device to use limited discoverable
// mode (advertises for 30 seconds at a time) instead of general
// discoverable mode (advertises indefinitely)
0x02, // length of this data
GAP_ADTYPE_FLAGS,
DEFAULT_DISCOVERABLE_MODE | GAP_ADTYPE_FLAGS_BREDR_NOT_SUPPORTED,
*/
// service UUID, to notify central devices what services are included
// in this peripheral
0x03, // length of this data
GAP_ADTYPE_16BIT_MORE, // some of the UUID's, but not all
LO_UINT16( SIMPLEPROFILE_SERV_UUID ),
HI_UINT16( SIMPLEPROFILE_SERV_UUID ),
};
3: add two new fun in SimpleBLEPeripheral_Init(): a) InitBorad(); b) Initiic();
void InitBorad( void )
{
CLKCONCMD &= ~0x40;
while(CLKCONSTA & 0x40);
CLKCONCMD &= ~0x47;
}
void Initiic( void )
{
I2CWC &= ~0x80;
P2IF = 0;
HalI2CInit(HAL_I2C_SLAVE_ADDR_DEF, i2cClock_33KHZ);
HalI2CWriteReg(0x2a,0x01);
HalI2CWriteReg(0x2b,0x1F);
}
4： add a new priod_event in SimpleBLEPeripheral_ProcessEvent
static uint32 sBp_adv_periodic_process_evt_period = 1000;
uint16 SimpleBLEPeripheral_ProcessEvent( uint8 task_id, uint16 events )
{
if ( events & SBP_ADV_PERIODIC_PROCESS_EVT )
{
EA = 0;
PeriodicTask();
EA = 1;
advertData[3] = accbuf[0];
advertData[4] = accbuf[1];
advertData[5] = accbuf[2];
advertData[6] = accbuf[3];
advertData[7] = accbuf[4];
advertData[8] = accbuf[5];
GAP_UpdateAdvertisingData(simpleBLEPeripheral_TaskID,
TRUE,
sizeof(advertData),
advertData );
osal_start_timerEx( simpleBLEPeripheral_TaskID, SBP_ADV_PERIODIC_PROCESS_EVT, sBp_adv_periodic_process_evt_period );
return (events ^ SBP_ADV_PERIODIC_PROCESS_EVT);
}
........
}
ps: external fun
void PeriodicTask( void )
{
int Offset;
accbuf[0] = HalI2CReadReg(0x01);
accbuf[1] = HalI2CReadReg(0x02);
Offset=(accbuf[0]<<8)|accbuf[1];
Offset>>=4;
accbuf[2] = HalI2CReadReg(0x03);
accbuf[3] = HalI2CReadReg(0x04);
Offset=(accbuf[2]<<8)|accbuf[3];
Offset>>=4;
accbuf[4] = HalI2CReadReg(0x05);
accbuf[5] = HalI2CReadReg(0x06);
Offset=(accbuf[4]<<8)|accbuf[5];
Offset>>=4;
}
I really hope someone can help me to do my issure,Thank you all.
