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54 lines
2.0 KiB
Plaintext
54 lines
2.0 KiB
Plaintext
m1nor - Flash a file to M1 NOR partition selected by the file name
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==================================================================
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During software development, one often need to update only the
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content of a single partition. reflash_m1.sh is a bit unwieldy
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for this kind of task.
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I've written a small script called m1nor that selects the target
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partition based on the file name. E.g., m1nor flickernoise.fbi
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would update the regular Flickernoise partition.
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The matching algorithm checks the beginning of the file name,
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so names like flickernoise-test.fbi would also work. Furthermore,
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it checks the file extension, so if you try to flash flickernoise
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(ELF, for debugging) or flickernoise.bin (an intermediate form
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unsuitable for booting from NOR), it will politely refuse to do
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so.
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You need to have fjmem.bit somwehere. It searches for it under
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$HOME/.qi/milkymist/, where reflash_m1.sh caches it. You can also
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specify the location directly by setting the environment variable
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FJMEM_BIT.
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xdltap - Route nets from inside the FPGA to I/O pads
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====================================================
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xdltap adds routes from signals inside the FPGA to I/O pads. It
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does this by converting the .ncd file generated by synthesis
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xdltap signal=output ... [xdl-file]
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The path to the signal to be tapped has to be fully qualified.
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Note that not all signals are listed in the .pcf file. Some may
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only show up in .xdl
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The output is the name of a global net that has to be connected
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to an input (!) pad.
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Signal names containing < and > can be written with { and }, to
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avoid extra escaping for the shell.
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Since xdl chokes on its own .xdl files, xdlfixes applies a number
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of ugly hacks to either avoid errors or to propagate them to a
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later stage, where they can be ignored.
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Example:
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map ... foo.ngd # generates foo.ncd
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xdl -ncd2xdl foo.ncd # generates foo.xdl
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xdltap usb/sie/rx_pending=exp{8} foo.xdl | xdlfixes >foo-dbg.xdl
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xdl -xdl2ncd foo-dbg.xdl # generates foo-dbg.ncd
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par ... foo-dbg.ncd ...
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