[riot-notifications] [RIOT-OS/RIOT] nrf802154: take FCS into account for lifs/sifs calculation (#11138)
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Tue Mar 12 16:49:58 CET 2019
> I tried to read the backoff time of the timer with gpios - set gpio directly after `timer_start` and cleared it in the timer callback - but strangely the backoff time scaled with the packetsize. For each additional Byte, let it be 1 or 50 Bytes of payload, the timer took additional 32 us.
Interesting, I'll try to reproduce this asap. In the mean time, is this also an issue on master? Furthermore, with IEEE 802.15.4, the "air time" of a byte is exactly 32 µs [(8 bit / (62.5Ksymbol/s * log_2(16) bit/symbol)](https://www.wolframalpha.com/input/?i=8+bit+%2F+(62500symbol%2Fs+*+log_2(16)+bit%2Fsymbol)), this matches a bit too well with your scaling factor to be simply ignored :D
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