錯誤現象
ielftool error: The string '__checksum' was not found in the string table
Error while running ielftool "--fill" "0xFF;0x9004-0x12fff" "--checksum" "__checksum:2,crc16,0x0;0x9004-0x12fff" "--verbose" "C:\Users\Administrator\Desktop\ECG\workspace\iar\app\FlashOnly_OAD_ImgB\Exe\
simple_peripheral_cc2650em_app.out.tmp" "C:\Users\Administrator\Desktop\ECG\workspace\iar\app\FlashOnly_OAD_ImgB\Exe\simple_peripheral_cc2650em_app.out" 
解決方法：
Project > Options... > Linker > Extra Options > mark "Use command line options" and add the command line option "--keep __checksum".
重新編譯就不會出現這個錯誤了