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void init_84(void) /* Function to initialize 4284 pointers and buffers */
{
uint i, j;
*datain
*dataout = 0;
*out_in = 0x7055u;
*cntrl = 0xffff0000u;
*vme_reg
/* set up ramp test function in output buffers */
for(i = 0; i < 0x2000; i = i + 4)
{
for (j = 0; j < 4; j++)
{
*(OutBufA + (i+j)) = (i << 18) | (j << 8);
*(OutBufB + (i+j)) = (i << 18) | (j << 8);
*(OutBufC + (i+j)) = (i << 18) | (j << 8);
*(OutBufD + (i+j)) = (i << 18) | (j << 8);
}
}
}
void led_on(void)
{
*vme_reg = (*vme_reg) | 0x40;
}
void led_off(void)
{
*vme_reg = (*vme_reg) & (~0x40);
}
void toggle_led(void)
{
*vme_reg = (*vme_reg) ^ 0x40;
}
vuint in_comm_port(vuint port_no, vuint *data)
{
vuint *comm_port_address, i;
comm_port_address =(vuint *)((port_no * 16) + 0x100040u);
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= 0;
/* the control for in and out c40 comm ports */
/* 0x70 = input control, 0x55 = output control */
/* dual port DRAM - user control - flag */
= A24 << 8;
/* Function to turn on Model 4284 front panel LED */
/* Function to turn off Model 4284 front panel LED */
/* Function to toggle (on/off) Model 4284 front panel LED */
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/* C40 input comm port function */
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