available from http://www.plxtech.com/products/io/pci9080
2. The initialization done so far is:
- a. program the FPGA (windows code sans a lot of error messages)
+ a. program the FPGA (windows code sans a lot of error messages)
b.
3. Analog out seems to work OK with DAC's disabled, if DAC's are enabled,
gives me no clues. I'll keep it simple so far.
4. Analog in.
- Each channel in the scanlist seems to be controlled by four
+ Each channel in the scanlist seems to be controlled by four
control words:
- Word0:
- +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- ! | | | ! | | | ! | | | ! | | | !
- +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ Word0:
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ ! | | | ! | | | ! | | | ! | | | !
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- Word1:
- +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- ! | | | ! | | | ! | | | ! | | | !
- +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ Word1:
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ ! | | | ! | | | ! | | | ! | | | !
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| | | | | | |
- +------+------+ | | | | +-- Digital input (??)
+ +------+------+ | | | | +-- Digital input (??)
| | | | +---- 10 us settling time
| | | +------ Suspend acquisition (last to scan)
| | +-------- Simultaneous sample and hold
| +---------- Signed data format
+------------------------- Correction offset low
- Word2:
- +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- ! | | | ! | | | ! | | | ! | | | !
- +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- | | | | | | | | | |
- +-----+ +--+--+ +++ +++ +--+--+
- | | | | +----- Expansion channel
+ Word2:
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ ! | | | ! | | | ! | | | ! | | | !
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | | | | | | | | | |
+ +-----+ +--+--+ +++ +++ +--+--+
+ | | | | +----- Expansion channel
| | | +----------- Expansion gain
- | | +--------------- Channel (low)
+ | | +--------------- Channel (low)
| +--------------------- Correction offset high
+----------------------------- Correction gain low
- Word3:
- +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- ! | | | ! | | | ! | | | ! | | | !
- +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- | | | | | | | | |
- +------+------+ | | +-+-+ | | +-- Low bank enable
- | | | | | +---- High bank enable
- | | | | +------ Hi/low select
+ Word3:
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ ! | | | ! | | | ! | | | ! | | | !
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | | | | | | | | |
+ +------+------+ | | +-+-+ | | +-- Low bank enable
+ | | | | | +---- High bank enable
+ | | | | +------ Hi/low select
| | | +---------- Gain (1,?,2,4,8,16,32,64)
| | +-------------- differential/single ended
| +---------------- Unipolar
+------------------------- Correction gain high
999. The card seems to have an incredible amount of capabilities, but
- trying to reverse engineer them from the Windows source is beyond my
+ trying to reverse engineer them from the Windows source is beyond my
patience.
*/