openwifi/user_space/rssi_openwifi_show.sh
2023-01-17 14:48:23 +01:00

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#!/bin/bash
rssi_raw=$(./sdrctl dev sdr0 get reg xpu 57)
echo $rssi_raw
rssi_raw=${rssi_raw: -8}
echo $rssi_raw
rssi_raw_dec=$(( 16#$rssi_raw ))
echo $rssi_raw_dec
#rssi_half_db=$(expr (16#$rss_raw) \& 2047)
#rssi_half_db=$(($rssi_raw_dec & 2047))
#rssi_half_db=$(($rssi_raw_dec & 16#7ff))
#the low 11 bits are rssi_half_db
rssi_half_db=$((16#$rssi_raw & 16#7ff))
echo $rssi_half_db