Hallo, I face another problem: I am using Cx51 Ver 7.06 I am using Philips/89C669 I am using ROM(HUGE) (code size maybe > 64K) I use number of sscanf functions and until now everything was fine. Now my code size actually grew more than 64K and then I get this error:
*** ERROR L121: IMPROPER FIXUP MODULE: C:\KEIL\C51\LIB\CS51FPS.LIB (SCANF) SEGMENT: ?PR?SCANF?SCANF OFFSET: 000043H
Are you sure you have the configuration of the tools set up to use the extended (MX) feature of the architecture to have more than 64k of code? Does your startup code set also whatever bits are necessary to enable this mode in the processor? It seems perhaps a little unusual that you are using the small memory model with all that code. Of course, you may not need much data space, but just a lot of code.
Yes, I have Cx51, Lx51 and so on (actually PK51) Besides, the problem seems to be only with scanf function. I can call many other library functions and the code size may increase > 64K and still I get no error; and the code also works well on my hardware. Only if I call scanf, then I get error if code is > 64K. (Actually the linker complains about scanf, but really I directly never call scanf, I only call sscanf. Maybe sscanf calls scanf?) If sscanf used and code size > 64K, then only I see the linker error. If either sscanf is removed or if code size is < 64K, then everything is ok. Yes, I have set the necessary bits for using > 64K code. Since my code works even if it is > 64K (but without sscanf), it means my bit settings are correct (I hope!) mk