/**
* @brief This function will turn on the radio and waits till it enters the Ready state.
* @param Param:None.
* @retval None
*
*/
void RadioPowerON(void)
{
SpiritCmdStrobeReady();
do{
/* Delay for state transition */
for(volatile uint8_t i=0; i!=0xFF; i++);
/* Reads the MC_STATUS register */
SpiritRefreshStatus();
}
while(g_xStatus.MC_STATE!=MC_STATE_READY);
}
uint8_t SpiritManagementWaVcoCalibration(void)
{
uint8_t s_cVcoWordRx;
uint8_t s_cVcoWordTx;
uint32_t nFreq;
uint8_t cRestore = 0;
uint8_t cStandby = 0;
uint32_t xtal_frequency = SpiritRadioGetXtalFrequency();
/* Enable the reference divider if the XTAL is between 48 and 52 MHz */
if(xtal_frequency>26000000)
{
if(!SpiritRadioGetRefDiv())
{
cRestore = 1;
nFreq = SpiritRadioGetFrequencyBase();
SpiritRadioSetRefDiv(S_ENABLE);
SpiritManagementSetFrequencyBase(nFreq);
}
}
nFreq = SpiritRadioGetFrequencyBase();
/* Increase the VCO current */
uint8_t tmp = 0x19; SpiritSpiWriteRegisters(0xA1,1,&tmp);
SpiritCalibrationVco(S_ENABLE);
SpiritRefreshStatus();
if(g_xStatus.MC_STATE == MC_STATE_STANDBY)
{
cStandby = 1;
SpiritCmdStrobeReady();
do{
SpiritRefreshStatus();
if(g_xStatus.MC_STATE == 0x13)
{
return 1;
}
}while(g_xStatus.MC_STATE != MC_STATE_READY);
}
SpiritCmdStrobeLockTx();
do{
SpiritRefreshStatus();
if(g_xStatus.MC_STATE == 0x13)
{
return 1;
}
}while(g_xStatus.MC_STATE != MC_STATE_LOCK);
s_cVcoWordTx = SpiritCalibrationGetVcoCalData();
SpiritCmdStrobeReady();
do{
SpiritRefreshStatus();
}while(g_xStatus.MC_STATE != MC_STATE_READY);
SpiritCmdStrobeLockRx();
do{
SpiritRefreshStatus();
if(g_xStatus.MC_STATE == 0x13)
{
return 1;
}
}while(g_xStatus.MC_STATE != MC_STATE_LOCK);
s_cVcoWordRx = SpiritCalibrationGetVcoCalData();
SpiritCmdStrobeReady();
do{
SpiritRefreshStatus();
if(g_xStatus.MC_STATE == 0x13)
{
return 1;
}
}while(g_xStatus.MC_STATE != MC_STATE_READY);
if(cStandby == 1)
{
SpiritCmdStrobeStandby();
}
SpiritCalibrationVco(S_DISABLE);
/* Disable the reference divider if the XTAL is between 48 and 52 MHz */
if(cRestore)
{
SpiritRadioSetRefDiv(S_DISABLE);
SpiritManagementSetFrequencyBase(nFreq);
}
/* Restore the VCO current */
tmp = 0x11; SpiritSpiWriteRegisters(0xA1,1,&tmp);
SpiritCalibrationSetVcoCalDataTx(s_cVcoWordTx);
SpiritCalibrationSetVcoCalDataRx(s_cVcoWordRx);
return 0;
}