*** WARNING L16: UNCALLED FUNCTION, IGNORED FOR OVERLAY PROCESS

How to solve this warning? I tried many ways, and still have this warning. -------- DR232A.ASM module NAME DR232A ?PR?dr232a?DR232A SEGMENT CODE extrn code (Post_Cam_Prob) extrn code...
*** WARNING L16: UNCALLED FUNCTION, IGNORED FOR OVERLAY PROCESS

How to solve this warning? I tried many ways, and still have this warning. -------- DR232A.ASM module NAME DR232A ?PR?dr232a?DR232A SEGMENT CODE extrn code (Post_Cam_Prob) extrn code...
Getting *** WARNING L16: UNCALLED FUNCTION, IGNORED FOR OVERLAY PROCESS

I'm working on uVision3 on a Cypress NX2LP-Flex board, and I'm getting the above message when I call a few, but not all of the I2C functions from the EZUSB library. For example when I just call EZUSB_InitI2C...
Getting *** WARNING L16: UNCALLED FUNCTION, IGNORED FOR OVERLAY PROCESS

I'm working on uVision3 on a Cypress NX2LP-Flex board, and I'm getting the above message when I call a few, but not all of the I2C functions from the EZUSB library. For example when I just call EZUSB_InitI2C...
EXTRN NUMBER () in C

here is the solution about the question in thread http://www.keil.com/forum/msgpage.asp?MsgID=4407 ;ASM-File 1 ... public SYMBOL SYMBOL equ 5 ... ;ASM-File 2 ... extrn number (SYMBOL) ......