Entry into critical section

Hardware MKR Family MKRFOX1200
1

Hi there,
I want to disable interupts in the section that sent messages.

Is the interruptDisable(); command is effective for LowPower Lib interrupts as LowPower.attachInterruptWakeup, or only for the arduino native attachInterrupt() ?

Thanks.

2

Which controller are you using?
You may be unable to send or receive messages with interrupts disabled.

3

can you explain the rationale there? many hardware in charge of transmitting data rely on interrupts

what do you want to protect yourself against?

4

Hi JML,
Unexpected behaviour of the device : Stay sometimes awake and never go back to sleep. I suspect never ending communication with the embeded SigFox module , because the rest of the code is really poor and can't lead to this behaviour.
But, actually, I didn't check the sigfox library to verify this hypothesis. Perhaps your right, and it's a wrong way.

5

with Sigfox' library you would send a payload as a transaction

  SigFox.beginPacket();
  SigFox.write(xxx);
  int ret = SigFox.endPacket();

if you are worried some sort of interrupt would come and corrupt the way you are building the payload, you could build the payload in a critical section

the ret value should tell you if the packet was sent correctly

6

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