# srec_cat command file to add the CRC and produce application file to be flashed
# Usage: srec_cat @filename

#first: create CRC checksum
lpcxpresso54s018m_led_blinky.srec           # input file
-fill 0xFF 0x10000180 0x10010000            # fill code area with 0xff
-crop 0x10000180 0x10010000                 # just keep code area for CRC calculation below (CRC will be at 0x1FFFE..0x1FFFF)
-CRC16_Big_Endian 0x10000170 -CCITT         # calculate big endian CCITT CRC16 at given address.
-crop 0x10000170 0x10000172                 # keep the CRC itself


#second: add application file
lpcxpresso54s018m_led_blinky.srec           # input file
-fill 0xFF 0x10000180 0x10010000            # fill code area with 0xff
-crop 0x10000000 0x10000170 0x10000172 0x10010000  #keep all except CRC 

#finally, produce the output file
-Output                                     # produce output
lpcxpresso54s018m_led_blinky_crc.srec