CAEN V767 128 Channel Gen. Purpose MH TDC - Physics

02/07/2003 V767 User's Manual – Rev.4
/* checks the Write OK bit */
do
{
rdata = *opc_hs;
time++;
}
while( (rdata != 0x02) && (time < TIMEOUT) );
if(time == TIMEOUT) /* a time out error is occurred */
{
printf("Timeout error\n");
return(-1);
}
delay(10); /* waits for 10 ms */
*opc_reg = data; /* vme write access to opcode register */
return(0);
}
/****************************************************************/
/* this function allows to read an operand */
/****************************************************************/
int read_op (unsigned short *data)
{
unsigned short *opc_hs, *opc_reg;
unsigned short rdata;
int time=0;
/* sets V767 registers addresses */
opc_hs = (unsigned short *)(V767_BASE_ADDRESS + 0x50);
opc_reg = (unsigned short *)(V767_BASE_ADDRESS + 0x52);
/* waits until a new read/write opcode operation is ready */
do
{
rdata = *opc_hs;
time++;
}
while( (rdata != 0x01) && (time < TIMEOUT) );
if(time == TIMEOUT) /* a time out error is occurred */
{
printf("Timeout error\n");
return(-1);
}
delay(10); /* waits for 10 ms */
*data = *opc_reg; /* vme read access to opcode register */
return(0);
}
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