Chapter 7 Diagnostic and Troubleshooting Test Procedures
© National Instruments Corporation 7-9 GPIB-1014 User Manual
113 ISR1 = 2? after transferred the first two bytes on Channel 0
and the carry cycle byte on Channel 1, check if DI
is cleared before write the last data byte to DIR
111 DIR = 3 write the last data byte to TLC, since DIR is full,
TLC will request for a DMA transfer to put the byte
in DIR to memory
04A MTC1 = 0001? count of 1 indicates last data byte has been
transferred
040 CSR1 = 0A? GPIB synchronized
047 CCR1 = 10 software abort
040 CSR1 = FF
3000 data = 01? check the first data byte that was transferred from
TLC to memory
3001 data = 02? check second data byte
3002 data = 03? check last data byte
Note: The carry cycle byte (81 = HLDA) was
transferred to the TLC automatically by the
GPIB-1014 after it transferred the first two
bytes and before the last data byte