in your project properties select the "Build Steps" tab and edit the "Post build steps".
Most likely there is something like:
arm-none-eabi-size "${BuildArtifactFileName}"
# arm-none-eabi-objcopy -v -O binary "${BuildArtifactFileName}" "${BuildArtifactFileBaseName}.bin"
# checksum -p ${TargetChip} -d "${BuildArtifactFileBaseName}.bin"
in there. Just remove the "#" in front of the two lines to create a binary file and place the correct checksum in the file.
When you replace the "-O binary" with "-O srec" or "-O ihex" you get the output in motorola S-record or intel Hex format.
Rob