whitequark[cis] changed the topic of #glasgow to: https://glasgow-embedded.org · digital interface explorer · https://www.crowdsupply.com/1bitsquared/glasgow · meetings Saturday 2200 UTC · code https://github.com/GlasgowEmbedded/glasgow · logs https://libera.irclog.whitequark.org/glasgow · matrix #glasgow-interface-explorer:matrix.org · discord https://1bitsquared.com/pages/chat
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<nemanjan00[m]> @Catherine: I am assuming there is no way to mix verilog with amaranth with glasgow?
<whitequark[cis]> you can still use platform.add_file
<whitequark[cis]> ah, hm, one sec
<whitequark[cis]> yep, you should be able to do that
<nemanjan00[m]> Hmm, great 😄 Opens up a lot of options, with ADC, DAC and DSP cores 😄
<whitequark[cis]> though none of these would ever be upstream
<nemanjan00[m]> Well, I guess that does not stop me from using it myself 😄
<whitequark[cis]> yep
<nemanjan00[m]> Maybe at some point someone will implement some DSP cores in amaranth
<whitequark[cis]> i mean you can just... do that?
<whitequark[cis]> DSP isn't magic
<whitequark[cis]> (also what the hell is an ADC or DAC core?)
<nemanjan00[m]> No, I meant I could create addon with ADC and DAC chip and do stuff like filtering, fft and stuff like that on glasgow 😄
<nemanjan00[m]> Maybe simple osciloscope addon
<whitequark[cis]> I really doubt the iCE40 we use has enough power for an FFT
<nemanjan00[m]> I really do not know how many gates it has, but maybe for slow signals? Small window...
<whitequark[cis]> it doesn't even have multipliers
<whitequark[cis]> and it has less than 8000 4-LUTs
<whitequark[cis]> you could maybe do some extremely simple first-order filtering
<nemanjan00[m]> Ok, I guess I overestimated it
<whitequark[cis]> anyway, given how cheap aliexpress oscilloscopes are, it is not worth it economically to develop any such addon that is viable
<whitequark[cis]> https://www.aliexpress.com/item/1005005644784105.html you are not beating this
<whitequark[cis]> maybe in speed, but not in convenience
<nemanjan00[m]> Any easy way to see how many LUTs applet is?
<whitequark[cis]> AMARANTH_verbose=1 glasgow build --rev C0 ...
<nemanjan00[m]> Thanks
<nemanjan00[m]> I have a full sized scope (MSO5000), I was going more for realtime operation of peripherals from trace (custom triggering), but I guess that is not practical with that small of an FPGA
<whitequark[cis]> you don't actually need either filtering or FFT for that, necessarily
<nemanjan00[m]> Oh, that was another idea, more radio focused 😄 Custom filters, for ham radio use or maybe audio processing in general
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<jwise0[m]> 👀 👀 👀 I wonder what PLD it is using
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<davidrysk[m]> OpenOCD folks suggest implementing FTDI MPSSE protocol on the Glasgow side as remote_bitbang is not that fast
<davidrysk[m]> But it looks like remote_bitbang SWD should get merged soon
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<whitequark[cis]> <davidrysk[m]> "OpenOCD folks suggest implementi..." <- this was actually the original plan for Glasgow as a project
<whitequark[cis]> however, as the project evolved, it became clear that it should not be emulating other USB devices, so it would not do that
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