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sprintf(command, "DIAG:PEEK? %ld, %d", base_addr+0x02,8);
IOOUTPUTS(CMD_MOD, command, strlen(command));
IOENTER(CMD_MOD, &bit_pat);
/* retain register settings, set pulse register as the high-speed */
/* clock source */
bit_reg = (int)(bit_pat + ((bit_pat >= 0) ? .5 : -.5));
bit_reg = (bit_reg & 0xF3);
sprintf(command, "DIAG:POKE %ld, %d, %d", base_addr+0x02,8,bit_reg);
IOOUTPUTS(CMD_MOD, command, strlen(command));
/* Send a clock pulse to the internal high-speed bus */
sprintf(command, "DIAG:POKE %ld, %d, %d", base_addr+0x08,8,0);
IOOUTPUTS(CMD_MOD, command, strlen(command));
/* using the traffic register, set the digitizer A/D as the clock */
/* source and as the data source for memory */
sprintf(command, "DIAG:PEEK? %ld, %d", base_addr+0x02,8);
IOOUTPUTS(CMD_MOD, command, strlen(command));
IOENTER(CMD_MOD, &bit_pat);
/* retain register settings, set the A/D as the high-speed */
/* clock source and as the data source */
bit_reg = (int)(bit_pat + ((bit_pat >= 0) ? .5 : -.5));
bit_reg = (bit_reg & 0xF0) | 0x04;
sprintf(command, "DIAG:POKE %ld, %d, %d", base_addr+0x02,8,bit_reg);
IOOUTPUTS(CMD_MOD, command, strlen(command));
/* initiate the timebase processor */
/* load the arm count and initialize the trigger counters */
sprintf(command, "DIAG:POKE %ld, %d, %d", base_addr+0x59,8,0);
IOOUTPUTS(CMD_MOD, command, strlen(command));
IOOUTPUTS(CMD_MOD, command, strlen(command));
IOOUTPUTS(CMD_MOD, command, strlen(command));
/* send the timebase processor initiate pulse */
sprintf(command, "DIAG:POKE %ld, %d, %d", base_addr+0x45,8,0);
IOOUTPUTS(CMD_MOD, command, strlen(command));
}
Continued on Next Page
398 Register Programming Appendix C