/***********************************************************************************
* @fn halRfSetTxPower
*
* @brief Set TX output power
*
* @param uint8 power - power level
*
* @return SUCCESS or FAILED
*/
uint8 halRfSetTxPower(uint8 power) {
uint8 n;
switch (power) {
#ifdef INCLUDE_PA
case HAL_RF_TXPOWER_MIN1_DBM: n = CC2520_TXPOWER_MIN1_DBM; break;
case HAL_RF_TXPOWER_11_DBM: n = CC2520_TXPOWER_11_DBM; break;
case HAL_RF_TXPOWER_14_DBM: n = CC2520_TXPOWER_14_DBM; break;
case HAL_RF_TXPOWER_16_DBM: n = CC2520_TXPOWER_16_DBM; break;
case HAL_RF_TXPOWER_17_DBM: n = CC2520_TXPOWER_17_DBM; break;
#else
case HAL_RF_TXPOWER_MIN_4_DBM:
n = CC2520_TXPOWER_MIN_4_DBM;
break;
case HAL_RF_TXPOWER_0_DBM:
n = CC2520_TXPOWER_0_DBM;
break;
case HAL_RF_TXPOWER_4_DBM:
n = CC2520_TXPOWER_4_DBM;
break;
#endif
default:
return FAILED;
}
CC2520_REGWR8(CC2520_TXPOWER, n);
return SUCCESS;
}
/**
* PB0 => FIFOP
*/
void CC2520_ENABLE_FIFOP( void)
{
NVIC_InitTypeDef NVIC_InitStructure;
CC2520_REGWR8(CC2520_GPIOCTRL0, CC2520_GPIO_FIFOP);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_Init(GPIOB, &GPIO_InitStructure);
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);
NVIC_InitStructure.NVIC_IRQChannel = EXTI0_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
EXTI_ClearITPendingBit(EXTI_Line0);
GPIO_EXTILineConfig(GPIO_PortSourceGPIOB, GPIO_PinSource0);
EXTI_InitStructure.EXTI_Line = EXTI_Line0;
EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising;
EXTI_InitStructure.EXTI_LineCmd = ENABLE;
EXTI_Init(&EXTI_InitStructure);
}
/***********************************************************************************
* @fn halSampleED
*
* @brief Sample Energy Detect
*
* @param uint8 channel - channel between 11 and 26
* uint16 sampleTime - sample time in us
*
* @return int8 - sampled RSSI value
*/
int8 halSampleED(uint8 channel, uint16 sampleTime)
{
int8 rssi=0;
CC2520_REGWR8(CC2520_FREQCTRL, 0x0B + ( (channel-11) * 5));
CC2520_SRXON();
while (!CC2520_REGRD8(CC2520_RSSISTAT));
// Enable ED scan mode
CC2520_BSET(CC2520_MAKE_BIT_ADDR(CC2520_FRMCTRL0, 4));
// Spend sampleTime us accumulating the peak RSSI value
halMcuWaitUs(sampleTime);
rssi = CC2520_REGRD8(CC2520_RSSI);
// Exit the current channel
CC2520_SRFOFF();
// Disable ED scan mode
CC2520_BCLR(CC2520_MAKE_BIT_ADDR(CC2520_FRMCTRL0, 4));
return rssi;
}
/***********************************************************************************
* @fn halSetRxScanMode
*
* @brief Set chip in RX scanning mode
*
* @param none
*
*
* @return none
*/
void halSetRxScanMode(void)
{
// Make CC2520 enter infinite RX mode
CC2520_REGWR8(CC2520_FRMCTRL0, 0x0C);
}
/***********************************************************************************
* @fn halRfSetChannel
*
* @brief Set RF channel in the 2.4GHz band. The Channel must be in the range 11-26,
* 11= 2005 MHz, channel spacing 5 MHz.
*
* @param channel - logical channel number
*
* @return none
*/
void halRfSetChannel(uint8 channel) {
CC2520_REGWR8(CC2520_FREQCTRL,
MIN_CHANNEL + ((channel - MIN_CHANNEL) * CHANNEL_SPACING));
}
/***********************************************************************************
* @fn cc2520_setChannel
*
* @brief Set RF channel in the 2.4GHz band. The Channel must be in the range 11-26,
* 11= 2005 MHz, channel spacing 5 MHz.
*
* @param channel - logical channel number
*
* @return none
*/
void cc2520_setChannel(uint8_t channel)
{
CC2520_REGWR8(CC2520_FREQCTRL, MIN_CHANNEL + ((channel - MIN_CHANNEL) * CHANNEL_SPACING));
}