In order to set the max length of the S19 records in the S19 file you have to go the the Project Properties window and under your C/C++ Build Settings find the linker output settings. You should have a setting for "Max S-Record Length" If you want to align the S-Records to 32 bits then you should set this to 4 (bytes). I am wondering why you need this particular alignment though... Are you trying to align the instructions on 32 bit boundaries or just the actual S-Records in the S19 file? If you are trying to align the instructions on 32 bit boundaries you should instead modify the lcf file to use ". = ALIGN (0x4);" for the sections of the rom/ram that need to be aligned this way. If you are just wanting to align the S-Records in the S19 file, I can't see any reason to do this unless your bootloader only accepts S-Records of a certain width, and it has been my experience that most of the bootloaders provided by Freescale work fine by setting the max S-Record length to 124 (128 - 4 for checksum).
