Experimental Physics and
Industrial Control System

Till Straumann <[email protected]> · Wed, 23 Jul 2008 08:54:39 -0700

Could you please share a little more
information ?

How do you link your application?
Could you attach the (complete) console
log of the build process (compilation/linking) ?

What EPICS version are you using?

Thanks
- Till

师昊礼 wrote:
> Hi, all
>
>    I built an epics application, and I used two functions like this:
>    
>    #include <devLib.h>
>    char	*localaddrstart;
>    unsigned short int testvalue=INIT_TESTVALUE;
>    unsigned long baseaddr = 0x20200000;
>    if (devRegisterAddress("VME_mapping", atVMEA32, baseaddr, sizeof(struct 
> channel), (char *) &(localaddrstart))!=0)
> 	{
> 		printf("Out of Bus Mem Map!\n");
> 		return -1;
> 	}
>    if (devReadProbe(1, localaddrstart, &testvalue) < 0)
> 	{
> 	  printf("No board at this address!\n");
> 	  return -1;
> 	}
>    
>    then, I past the compilation, but when I download the object file to the
> target board, and there are the following errors:
>   
>    ld("../bin/RTEMS-mvme5500/power_supply.obj")
>    Unresolved symbol: pdevLibVirtualOS
>    Unresolved symbol: pdevLibVirtualOS
>    Unresolved symbol: pdevLibVirtualOS
>    Unresolved symbol: pdevLibVirtualOS
>    Unresolved symbol: pdevLibVirtualOS
>    ......
>
> any help is appreciated, thanks a lot!
>
> Haoli Shi
>
>   

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System