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a) Writting/Reading register values
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b) Wait until <register1>=<value> on <register2>=<value> report error
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IRQ types: DMA IRQ, Event IRQ, other types
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IRQ hardware source: To allow purely user-space implementation, as general
195
rule, only a single (standard) source should be used.
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IRQ source: The dma/event engines, however, may detail this hardware source
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and produce real IRQ source basing on the values of registers. For example,
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for DMA IRQs the source may present engine number and for Event IRQs the
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source may present event type.
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Only types can be enabled or disabled. The sources are enabled/disabled
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by enabling/disabling correspondent DMA engines or Event types. The expected
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workflow is following:
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* We enabling IRQs in user-space (normally setting some registers). Normally,
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just an Event IRQs, the DMA if necessary will be managed by DMA engine itself.
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* We waiting for standard IRQ from hardware (driver)
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* In the user space, we are checking registers to find out the real source
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of IRQ (driver reports us just hardware source), generating appropriate
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events, and acknowledge IRQ. This is dependent on implementation and should
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be managed inside event API.
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I.e. the driver implements just two methods pcilib_wait_irq(hw_source),
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pcilib_clear_irq(hw_source). Only a few hardware IRQ sources are defined.
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In most cirstumances, the IRQ_SOURCE_DEFAULT is used.
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The DMA engine may provide 3 additional methods, to enable, disable,
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... To be decided in details upon the need...
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- JTag should be connected to left USB connector on the board
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- The computer should be tourned off and on before programming
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- The application is called 'impact'
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Cancel initial proposals
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Left click on USB connection
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Select "Boundary Scan" and double click
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Click "Initiate Chain" on right element (left click)
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Say yes, Select bit file, Cancel
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Click "Assign new CF file" on right element (left click
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v.2: /home/uros/Repo/UFO2_last_good_version_UFO2.bit
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v.3: /home/uros/Repo/UFO3
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Step5 - best working revision
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Step6 - last revision
b'\\ No newline at end of file'
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NOTES
