[ts-7000] Re: Strange shifting variables

["Andy Mercier" <>]

Eric,

What are TS_OUTB_DPORT_A, TS_DIOCR_DIRA, TS_DIOCR_DIRB are defined as.

Please use the line(s) directly from the file that defines or declares
them.

Thanks.

----
Andy

> It seems like I don't understand what I'm writing to.  
>  preg->regOff = (TS_OUTB_DPORT_A)  //This doesn't work
>  preg->regOff = (TS_OUTB_DPORT_A << 16)  //While this does
> 
> 
> 
> typedef struct Port Port;
> 
> 
> /* Declare register info structure */
> typedef struct Reg_struct
> {
>     volatile unsigned int isConn;
>     volatile unsigned int cfgIdx;
>     volatile unsigned int cfgOff;
>     volatile unsigned int regOff;
>     volatile unsigned int regNum;
>     volatile unsigned int regDir;
> } Reg;
> 
> static asynStatus create(void* ppvt,asynUser* pasynUser,const char*
> drvInfo, const char** pptypeName,size_t* psize)
> {
>     int addr = -1;
>     volatile Reg* preg = NULL;
>     volatile Port* pport = (Port*)ppvt;
> 
>     switch( pport->type )
>     {
>     case TS_7200:
> printf("XX0: 0x%x\n",preg->cfgOff);
> printf("XX1: 0x%x\n",preg->regOff);
> 
>         if( addr < 1 ){
>            preg->cfgOff = (TS_DIOCR_DIRA << 16);
> printf("DirA: 0x%x 0x%x\n",preg->cfgOff,TS_DIOCR_DIRA);}
> 
>         else if( addr > 0 ){
>            preg->cfgOff = TS_DIOCR_DIRB;
> printf("DirB: 0x%x\n",preg->cfgOff);}
> printf("AA0: 0x%x\n",preg->cfgOff);
> 
>         if( addr == 0 ){
>             preg->regOff = (TS_OUTB_DPORT_A << 16);
> printf("PortA: 0x%x 0x%x\n",preg->regOff,TS_OUTB_DPORT_A);}
> 
>         else if( addr == 1 ){
>             preg->regOff = TS_OUTB_DPORT_B;
> printf("PortB: 0x%x\n",preg->regOff);}
> 
>         else        {           
> asynPrint(pasynUser,ASYN_TRACEIO_FILTER,"drvDio::create %s: invalid
> register number %d\n",pport->name,addr);
>             return( asynError );        }        
> 
> printf("AA1: 0x%x\n",preg->cfgOff);
> printf("Break: 0x%x\n",preg->regOff);
>         break;
>     } // switch is done
> 
> printf("Done: 0x%x\n",preg->regOff);
> 
> 
> output (with <<16):
> 
> XX0: 0x14
> XX1: 0x4
> DirA: 0x14 0x14
> AA0: 0x14
> PortA: 0x4 0x4
> AA1: 0x14
> Break: 0x4
> Done: 0x4
> 4
> 4
> preg->cfgOff
> preg->regOff=4
> 
> 
> output (without <<16):
> XX0: 0x140000
> XX1: 0x40000
> DirA: 0x140000 0x14
> AA0: 0x140000
> PortA: 0x40000 0x4
> AA1: 0x140000
> Break: 0x40000
> Done: 0x40000
> 4
> 4
> preg->cfgOff=1310720
> preg->regOff=262144
> 
> 
> Thank you for any help!
> Eric
> 
> 
> 




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