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RFM69_LowPowerLab
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Merge pull request #44 from markbergsma/master 

Don't reenable interrupts in the ISR
This commit is contained in:
Felix Rusu 2016-06-08 09:28:33 -04:00
parent ca93c49b22 2133bbfe79
commit ea02e14b57
2 changed files with 13 additions and 3 deletions
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14
RFM69.cpp
View File

@ -41,6 +41,7 @@ volatile uint8_t RFM69::PAYLOADLEN;
volatile uint8_t RFM69::ACK_REQUESTED;
volatile uint8_t RFM69::ACK_RECEIVED; // should be polled immediately after sending a packet with ACK request
volatile int16_t RFM69::RSSI; // most accurate RSSI during reception (closest to the reception)
volatile bool RFM69::_inISR;
RFM69* RFM69::selfPointer;
bool RFM69::initialize(uint8_t freqBand, uint8_t nodeID, uint8_t networkID)
@ -109,6 +110,7 @@ bool RFM69::initialize(uint8_t freqBand, uint8_t nodeID, uint8_t networkID)
while (((readReg(REG_IRQFLAGS1) & RF_IRQFLAGS1_MODEREADY) == 0x00) && millis()-start < timeout); // wait for ModeReady
if (millis()-start >= timeout)
return false;
_inISR = false;
attachInterrupt(_interruptNum, RFM69::isr0, RISING);
selfPointer = this;
@ -353,7 +355,7 @@ void RFM69::interruptHandler() {
}
// internal function
void RFM69::isr0() { selfPointer->interruptHandler(); }
void RFM69::isr0() { _inISR = true; selfPointer->interruptHandler(); _inISR = false; }
// internal function
void RFM69::receiveBegin() {
@ -460,7 +462,7 @@ void RFM69::unselect() {
SPCR = _SPCR;
SPSR = _SPSR;
#endif
interrupts();
maybeInterrupts();
}
// true = disable filtering to capture all frames on network
@ -787,4 +789,10 @@ void RFM69::rcCalibration()
{
writeReg(REG_OSC1, RF_OSC1_RCCAL_START);
while ((readReg(REG_OSC1) & RF_OSC1_RCCAL_DONE) == 0x00);
}
}
inline void RFM69::maybeInterrupts()
{
// Only reenable interrupts if we're not being called from the ISR
if (!_inISR) interrupts();
}

2
RFM69.h
View File

@ -131,6 +131,7 @@ class RFM69 {
static void isr0();
void virtual interruptHandler();
virtual void interruptHook(uint8_t CTLbyte) {};
static volatile bool _inISR;
virtual void sendFrame(uint8_t toAddress, const void* buffer, uint8_t size, bool requestACK=false, bool sendACK=false);
static RFM69* selfPointer;
@ -151,6 +152,7 @@ class RFM69 {
virtual void setHighPowerRegs(bool onOff);
virtual void select();
virtual void unselect();
inline void maybeInterrupts();
};
#endif