Brian,
[quote user="Brian Chang90901"]is it possible to use ccs5 for c240x series.[/quote]
No. The latest release compatible with C24x devices is CCSv3.3, still available for purchase at:
http://www.ti.com/tool/ccstudio3
To read out data from this device your customer will also need a compatible JTAG emulator. XDS510 family is the most popular, with low-cost variants for C2000 (XDS510LC or USB2000), although XDS560 (not v2) is also compatible.
Regards,
Rafael