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Improve on random() #190

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Improve on random() #190

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b5c6842
Improve on random()
WereCatf Sep 25, 2018
e9bec96
Attempt to fix compilation for mkrwan1300
WereCatf Sep 25, 2018
32a8d16
Actually try to fix mkrwan1300
WereCatf Sep 25, 2018
f36fe47
Yield()ing for ESP WDT, just in case
WereCatf Sep 26, 2018
eb98ea9
Take onReceive() into account in random()
WereCatf Oct 5, 2018
00cf0a3
Merge remote-tracking branch 'sandeepmistry/master' into master
Nov 3, 2020
0a4e6ba
Update info about this fork
Nov 3, 2020
558d35b
Fix README.md
Nov 3, 2020
1413d92
Adjust library.properties
May 16, 2021
14a1ca8
More random random()
May 18, 2021
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26 changes: 25 additions & 1 deletion src/LoRa.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -582,7 +582,31 @@ void LoRaClass::setOCP(uint8_t mA)

byte LoRaClass::random()
{
return readRegister(REG_RSSI_WIDEBAND);
uint8_t currMode = readRegister(REG_OP_MODE);
uint8_t retVal = 0;
void (*_prevOnReceive)(int) = NULL;

while(isTransmitting()) yield();

//We need to be listening to radio-traffic in order to generate random numbers
if(currMode != (MODE_LONG_RANGE_MODE | MODE_RX_CONTINUOUS)){
#ifndef ARDUINO_SAMD_MKRWAN1300
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I'm generally oppose to these kinds of checks, since this PR was originally submit, 'support' has been added for the 1310 board(sorry this hasn't got attention...) and doesn't even begin to handle many other boards out there. Can this check instead be performed against _onReceive itself?

_prevOnReceive = _onReceive;
onReceive(NULL);
receive();
#else
explicitHeaderMode();
writeRegister(REG_OP_MODE, MODE_LONG_RANGE_MODE | MODE_RX_CONTINUOUS);
#endif
delay(1);
}
retVal = readRegister(REG_RSSI_WIDEBAND);
//Put the radio in the same mode as it was
if(currMode != (MODE_LONG_RANGE_MODE | MODE_RX_CONTINUOUS)) writeRegister(REG_OP_MODE, currMode);
#ifndef ARDUINO_SAMD_MKRWAN1300
if(_prevOnReceive) onReceive(_prevOnReceive);
#endif
return retVal;
}

void LoRaClass::setPins(int ss, int reset, int dio0)
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