National Instruments PCI E Series - Page 105

Chapter 4 Programming
PCI E Series RLPM 4-42
© National Instruments Corporation
AO_Mode_1_Register
AO trigger once = 1;
AO_Trigger_Select_Register
AO START1 select = 7;
AO START1 polarity = 0;
AO START1 edge = 1;
AO START1 sync = 1;
AO_Mode_3_Register
AO trigger length = 0;
Joint_Reset_Register
AO configuration start = 0;
AO configuration end = 1;
3. Call
AO_Counting to program the buffer size and the number of
buffers. Configure the DAQ-STC for non-continuous operation
(AO will stop on BC_TC). Load the BC counter with 49 (output the
buffer 50 times). Load the UC counter with 100 (the first buffer
contains 100 points). Write 99 to UC Load Register A (each
subsequent buffer contains 100 points).
Joint_Reset_Register
AO configuration start = 1;
AO_Mode_1_Register
AO continuous = 0;
AO_Mode_2_Register
AO BC initial load source = 0;
AO_BC_Load_A_Registers (24 bits)
Number of buffers - 1 = 49;
AO_Commmand_1_Register
AO BC load = 0;
AO_Mode_2_Register
AO UC initial load source = 0;
AO_UC_Load_A_Registers (24 bits)
Points per buffer = 100;
AO_Command_1_Register
AO UC load = 1;
AO_UC_Load_A_Registers (24 bits)
Points per buffer - 1 = 99;
Joint_Reset_Register
AO configuration start = 0;
AO configuration end = 1;