MRI lab: FPGA controller documentation
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Revision as of 20:22, 20 June 2010 by Steven Wasserman (Talk | contribs)
Control registers
| Register | Field | Bits | Function | device |
|---|---|---|---|---|
| PhaseIncrement | 31:0 | Set frequency of generated sinewave | /dev/pio_phaseIncrement | |
| Pulse1On | 31:0 | Duration of first pulse | /dev/pio_pulse1On | |
| Pulse1Off | 31:0 | Interval between first and second pulses | /dev/pio_pulse1Off | |
| Pulse2On | 31:0 | Duration of second pulse | /dev/pio_pulse2On | |
| Pulse2Off | 31:0 | Minimum interval between end of second pulse and first pulse repeat | /dev/pio_pulse2off | |
| PulseControl | /dev/pio_pulseControl | |||
| 6 | 0 = normal operation; 1 = reset digitizer | |||
| 5:4 | 00 = adc input (normal operation); 01 = adc test signal (count); 10 = test mode (DAC output); 11 = test mode (constant 0xDEADBEEF) | |||
| 3 | 0 = normal operation; 1 = disable ADC gate; | |||
| 2 | 0 = carrier; 1 = trigger |
