Added helper conversion functions for ftw <--> freq.

62af4949 · John Robert Gill · 9c542be8 · 62af4949 · 62af4949
Commit 62af4949 authored Nov 25, 2021 by John Robert Gill
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Showing with 14 additions and 2 deletions

freq2ftw.sh software/scripts/freq2ftw.sh +12 -0

ftw2freq.sh software/scripts/ftw2freq.sh +2 -2

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--- a/software/scripts/freq2ftw.sh
+++ b/software/scripts/freq2ftw.sh
+#!/bin/bash
+
+freq=$1
+sps_h=4620
+freq_h1=`echo "$freq/$sps_h" | bc -q`
+
+freq_wrclk=125000000
+prod=`echo "$freq_h1*(2^48)" | bc -q`
+ftw=`echo "$prod/$freq_wrclk" | bc -q`
+ftw_hex=`echo "obase=16;ibase=10; $ftw" | bc -q`
+
+echo "RF Input frequency($freq Hz) has an FTW=0x$ftw_hex"
--- a/software/scripts/ftw2freq.sh
+++ b/software/scripts/ftw2freq.sh
@@ -4,9 +4,9 @@ ftw_hex=`echo $1 | tr a-f A-F`

 freq_wrclk=125000000
 ftw=`echo "ibase=16; $ftw_hex" | bc -q`
-echo "ftw=$ftw"
+#echo "ftw=$ftw"
 prod=`echo "$ftw*$freq_wrclk" | bc -q`
-echo "prod=$prod"
+#echo "prod=$prod"
 fout=`echo "$prod/(2^48)" | bc -q`
 echo "Fout=$fout"
 fout_rf=`echo "$fout*4620" | bc -q`