board info: Freescale Tower TWR-K60F120M http://www.freescale.com/zh-Hans/webapp/sps/site/prod_summary.jsp?code=TWR-K60F120M with: TWR-SER http://www.freescale.com/zh-Hans/webapp/sps/site/prod_summary.jsp?code=TWR-SER and TWR-ELEV http://www.freescale.com/zh-Hans/webapp/sps/site/prod_summary.jsp?code=TWR-ELEV