Difference between revisions of "MRI lab: FPGA controller documentation"
From Course Wiki
(→Control registers) |
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| Line 5: | Line 5: | ||
!Bits | !Bits | ||
!Function | !Function | ||
| + | !device | ||
|- | |- | ||
|PhaseIncrement | |PhaseIncrement | ||
|31:0 | |31:0 | ||
|Frequency of generated sinewave | |Frequency of generated sinewave | ||
| + | |/dev/pio_phaseIncrement | ||
|- | |- | ||
|Pulse1On | |Pulse1On | ||
|31:0 | |31:0 | ||
|Length of first pulse | |Length of first pulse | ||
| + | |/dev/pio_pulse1On | ||
|- | |- | ||
|Pulse1Off | |Pulse1Off | ||
| Line 21: | Line 24: | ||
|31:0 | |31:0 | ||
|Length of second pulse | |Length of second pulse | ||
| + | |/dev/pio_pulse1Off | ||
|- | |- | ||
| − | | | + | |Pulse2On |
|31:0 | |31:0 | ||
|Interval between second pulse and end of cycle | |Interval between second pulse and end of cycle | ||
| + | |/dev/pio_pulse2Off | ||
|- | |- | ||
!PulseControl | !PulseControl | ||
| + | | | ||
| + | | | ||
| + | |/dev/pio_pulse2On | ||
|- | |- | ||
| | | | ||
|4 | |4 | ||
|0=normal operation (ADC data); 1=A/D test (count) | |0=normal operation (ADC data); 1=A/D test (count) | ||
| + | | | ||
|} | |} | ||
==API== | ==API== | ||
Revision as of 20:29, 15 June 2010
Control registers
| Register | Bits | Function | device |
|---|---|---|---|
| PhaseIncrement | 31:0 | Frequency of generated sinewave | /dev/pio_phaseIncrement |
| Pulse1On | 31:0 | Length of first pulse | /dev/pio_pulse1On |
| Pulse1Off | 31:0 | Interval between first and second pulse | |
| Pulse2On | 31:0 | Length of second pulse | /dev/pio_pulse1Off |
| Pulse2On | 31:0 | Interval between second pulse and end of cycle | /dev/pio_pulse2Off |
| PulseControl | /dev/pio_pulse2On | ||
| 4 | 0=normal operation (ADC data); 1=A/D test (count) |
