EFR32xG1x_Interrupts
Chip-specific

EFR32xG1x-specific interrupt sources.

Functions

void FRC_PRI_IRQHandler (void)
RAIL interrupt handler for the FRC_PRI interrupt source.
void FRC_IRQHandler (void)
RAIL interrupt handler for the FRC interrupt source.
void MODEM_IRQHandler (void)
RAIL interrupt handler for the MODEM interrupt source.
void RAC_SEQ_IRQHandler (void)
RAIL interrupt handler for the SEQ interrupt source.
void RAC_RSM_IRQHandler (void)
RAIL interrupt handler for the RAC_RSM interrupt source.
void BUFC_IRQHandler (void)
RAIL interrupt handler for the BUFC interrupt source.
void AGC_IRQHandler (void)
RAIL interrupt handler for the AGC interrupt source.
void PROTIMER_IRQHandler (void)
RAIL interrupt handler for the PROTIMER interrupt source.
void SYNTH_IRQHandler (void)
RAIL interrupt handler for the SYNTH interrupt source.
void RFSENSE_IRQHandler (void)
RAIL interrupt handler for the RFSENSE interrupt source.
void PRORTC_IRQHandler (void)
RAIL interrupt handler for the PRORTC interrupt source.

Detailed Description

EFR32xG1x-specific interrupt sources.

Below are the interrupt handlers implemented within the RAIL library for EFR32. See EFR32 for more details about interrupt initialization and priorities. For more information about the interrupt vectors and where they are on your specific chip, see the startup_efr32xg1xx.c file for your chip. These can be found under the Device/SiliconLabs folder in your release.

Warning
RAC_RSM_IRQHandler() and RAC_SEQ_IRQHandler() must be set to the same priority level.

Function Documentation

void AGC_IRQHandler ( void )

RAIL interrupt handler for the AGC interrupt source.

This source handles interrupts generated from the automatic gain control block. The following events are currently in use:

void BUFC_IRQHandler ( void )

RAIL interrupt handler for the BUFC interrupt source.

This source handles interrupts generated from the radio buffer controller. The following events are currently in use:

  • RX Buffer Threshold
  • RX Buffer Underflow
    • This event cannot be disabled and indicates that too much data was read from the RX buffer. It should not occur in normal operation as all receive APIs protect against it.
  • RX Buffer Corruption
    • This event cannot be disabled and indicates the pointers in the RX buffer have become corrupt. This event should not occur in normal operation.
  • TX Buffer Threshold
  • TX Buffer Overflow
    • This event cannot be disabled and indicates too much data was placed into the TX buffer. This event should not occur in normal operation as all transmit APIs protect against it.
  • TX Buffer Underflow
    • This event cannot be disabled and occurs when the transmit FIFO runs out of bytes before the end of the packet. This event will always perform any necessary cleanup and will call the eventsCallback if RAIL_EVENT_TX_UNDERFLOW is enabled.
  • TX Buffer Corruption
    • This event cannot be disabled and indicates the pointers in the TX buffer have become corrupt. This event should not occur in normal operation.
  • RX Entry Buffer Threshold
  • RX Entry Buffer Underflow
    • This event cannot be disabled and indicates that too much data was read from the RX entry buffer. This event should not occur in normal operation.
  • RX Entry Buffer Overflow
    • This event cannot be disabled and will fire one time if the RX entry buffer overflows. It will cause the RAIL_EVENT_RX_FIFO_OVERFLOW event to happen later after all valid entries are processed in the RX entry buffer.
  • RX Entry Buffer Underflow
    • This event cannot be disabled and indicates that too much data was read from the RX entry buffer. This event should not occur in normal operation.
  • RX Entry Buffer Corruption
    • This event cannot be disabled and indicates the pointers in the RX entry buffer have become corrupt. This event should not occur in normal operation.
void FRC_IRQHandler ( void )

RAIL interrupt handler for the FRC interrupt source.

This source handles packet completion events for the transmit side. The receive side events are queued and processed in the BUFC_IRQHandler . The following events are currently in use:

void FRC_PRI_IRQHandler ( void )

RAIL interrupt handler for the FRC_PRI interrupt source.

This source handles high-priority interrupt events within the FRC. Currently, there are no interrupt sources enabled within this group.

Note
The interrupt vector should point to the RAIL interrupt handler for compatibility with future RAIL releases.
void MODEM_IRQHandler ( void )

RAIL interrupt handler for the MODEM interrupt source.

This source handles demodulator and modulator status and error events. The following events are currently in use:

void PRORTC_IRQHandler ( void )

RAIL interrupt handler for the PRORTC interrupt source.

This source handles interrupts from the internal RTC source on chips that support it (efr32xg13 and efr32xg14). It is not used at this time.

Note
The interrupt vector should still point to the RAIL interrupt handler for compatibility with future RAIL releases.
void PROTIMER_IRQHandler ( void )

RAIL interrupt handler for the PROTIMER interrupt source.

This source handles interrupts generated from the RAIL timebase (PROTIMER). The following events are currently in use:

  • Scheduled TX/RX
    • This event cannot be disabled and occurs when a scheduled transmit or receive begins.
  • RX scheduled window end timeout
    • This event cannot be disabled and occurs when the scheduled receive window ends and the radio exits receive. This event will call the eventsCallback if RAIL_EVENT_RX_SCHEDULED_RX_END is enabled.
  • Transmit with CCA Failed
    • This event cannot be disabled and occurs when CCA indicates the channel is busy. This event will call the eventsCallback if RAIL_EVENT_TX_CHANNEL_BUSY is enabled.
  • Transmit with CCA Success
    • This event cannot be disabled and occurs when CCA indicates the channel is clear and the packet will be transmitted. This event will call the eventsCallback if RAIL_EVENT_TX_CHANNEL_CLEAR is enabled.
  • Starting a CCA check
  • CCA Retry
    • This event is enabled by RAIL_ConfigEvents() when given RAIL_EVENT_TX_CCA_RETRY . It will occur whenever CSMA or LBT have a failed channel check and are going to begin retrying. Note that on the EFR32xG1 platform this is enabled by default to handle issues with certain CCA threshold values.
  • RAIL Timer
    • This event is enabled by RAIL_SetTimer() and will call the provided callback when the timer expires.
void RAC_RSM_IRQHandler ( void )

RAIL interrupt handler for the RAC_RSM interrupt source.

Currently, there are no interrupt sources enabled within this group.

Note
The interrupt vector should still point to the RAIL interrupt handler for compatibility with future RAIL releases.
void RAC_SEQ_IRQHandler ( void )

RAIL interrupt handler for the SEQ interrupt source.

This source handles interrupts generated from the radio sequencer. The following events are currently in use:

void RFSENSE_IRQHandler ( void )

RAIL interrupt handler for the RFSENSE interrupt source.

This source handles interrupts generated from the RF Sense module. The following events are currently in use:

  • RF Sensed
    • This event is enabled by when the RFSENSE block is initialized using RAIL_StartRfSense() and can be disabled by turning off the RFSENSE block using RAIL_StartRfSense() with the band set to RAIL_RFSENSE_OFF. This event will possibly generate a callback provided to RAIL_StartRfSense whenever the RFSENSE block detects RF energy.
void SYNTH_IRQHandler ( void )

RAIL interrupt handler for the SYNTH interrupt source.

Currently, there are no interrupt sources enabled within this group.

Note
The interrupt vector should still point to the RAIL interrupt handler for compatibility with future RAIL releases.