could nRF24LE be in long sleep?

RE: could nRF24LE be in long sleep?

peter — Thu, 19 Mar 2015 12:52:09 GMT

thank you so much hakon alseth. Your information is helpful.

RE: could nRF24LE be in long sleep?

Håkon Alseth — Thu, 19 Mar 2015 10:33:33 GMT

Yes, you extend the sleep time by adding a counter++ and checking this in main before you enter sleep again. This should not add much extra current. Cheers, Håkon

RE: could nRF24LE be in long sleep?

peter — Thu, 19 Mar 2015 07:47:21 GMT

Hi , thanks for your reply. Do you mean I add a static counter to deal the among of time I wanted? and of course during the tick interrupt only if do counter++ and put the power down by ( PWRDWN = 0x04; ) , these will not take much power consumption as I expected ? thanks

RE: could nRF24LE be in long sleep?

Håkon Alseth — Wed, 18 Mar 2015 22:16:31 GMT

Hi,

The RTC on the nRF24LE1 only has 16 bit CC-registers, meaning that the max. timeout set is:

65536 / 32768 Hz = 2 seconds

You'll need to extend the sleep period by adding a counter in the tick interrupt. It will still wake up every 2 seconds, but it will only be awake for a brief period (lower micro-second range).

Cheers, Håkon