motbin2srec.sh

#!/bin/bash
#
# a script to convert a binary codeplug to an srecord codeplug which is able to be loaded in CPS
# Copyright Bryan Fields 2020
# Licensed under the GPLv2
# This is a PoC, likely a much better way to do this
#
#
CPSHEADER='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'

BINPADDING='80020000D8'

usage() 
{
	echo "used to convert a binary waris codeplug to a CPS srec file" 
	echo "Usage: motbin2srec input.bin output.srec"
}



while [ "$1" != "" ]; do
	case $1 in
        	-i | --in )	shift
                		inputfilename=$1
				;;
		-o | --out)	shift
				outputfilename=$1
				;;
		-h | --help )	usage
				exit
				;;
		* )		usage
				exit 1
	esac
	shift
done
# calc the length of the progrmaing block


prgBlockLength=$((16#`dd if=$inputfilename bs=1 skip=770 count=2 | xxd -p` ))

endOfPrgBlock=$(($prgBlockLength + 768))

echo "end of prog block $endOfPrgBlock"


# first dd the input file to a temp file

dd if=$inputfilename of=tempmot1.bin bs=1 skip=640 count=$endOfPrgBlock 


# then add the binpadding to the binary file
echo $BINPADDING | xxd -ps -r >tempmot2.bin  && cat tempmot1.bin >>tempmot2.bin

#now convert binary file to srecord file
srec_cat -DISable Header tempmot2.bin  -Binary -Output - -Line_Length 70  -Line_Termination Carriage_Return_Line_Feed -address-length=1 -DISable Data_Count -Execution_Start_Address 0 >tempmot2.srec 

#add the header on and you're done
echo $CPSHEADER | xxd -ps -r > $outputfilename && cat tempmot2.srec >> $outputfilename

#clean up the temp files
rm tempmot2.srec tempmot2.bin tempmot1.bin