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net/ieee802154: define IEEE 802.15.4 O-QPSK symbol time

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Benjamin Valentin 2023-01-30 16:36:46 +01:00
parent f048714418
commit ab5b1db9ef
1 changed files with 11 additions and 0 deletions
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11
sys/include/net/ieee802154.h
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@ -157,6 +157,17 @@ extern "C" {
*/
#define IEEE802154_ATURNAROUNDTIME_IN_SYMBOLS (12)
/**
* O-QPSK Symbol time for 2.4 GHz:
*
* IEEE Std 802.15.4-2006
* 6.5.2.3: Each data symbol shall be mapped into a 32-chip PN sequence
* 6.5.2.4: Chip rate is nominally 2.0 Mchip/s on the 2.4 GHz O-QPSK band
*
* -> 32 Chip/symbol / 2MChip/s = 16 µs/symbol
*/
#define IEEE802154_SYMBOL_TIME_US (16)
/**
* IEEE Std 802.15.4-2020
* Table 11-1—PHY constants: For all other PHYs¹, the duration of