clifford changed the topic of #yosys to: Yosys Open SYnthesis Suite: http://www.clifford.at/yosys/ -- Channel Logs: https://irclog.whitequark.org/yosys
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<thardin> is it possible to switch reference clock to the pll on the iCE40HX1K? as in starting it on one clock then switching to another?
<thardin> I'm looking at the possibility of locking it to a 1-100 kHz reference
<thardin> synthesizes at least
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<thardin> assuming I get this to work, it would be kind of amazing
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<llee454> Hi does anyone know of an appropriate channel to post questions about iceprog?
<Lofty> Here is fine
<Lofty> Or ##openfpga
<llee454> Thanks Lofty. I'm running into a problem where when I attempt to run iceprog it stalls indefinitely trying to clear the flash of an icoboard. When I run `sudo iceprog System.bin` I see the following warning: "Extended Device String Length is 0xFF, this is likely a read error. Ignorig...". Then it never progresses past: "erase 64kB sector at
<llee454> 0x000000.."
<llee454> Any ideas?
<daveshah> Are the jumpers on your board definitely configured for flash
<daveshah> ?
<daveshah> Oh hang on icoboard
<daveshah> They don't use iceprog, you need to use icoprog
<tpb> Title: GitHub - cliffordwolf/icotools: Tools and Examples for IcoBoard (at github.com)
<llee454> Thanks! You guys are awesome
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<llee454> It looks like the IcoBoard project assumes that I'm programming the Icoboard using a Raspberry Pi. I'm using the Icoboard Base (https://shop.trenz-electronic.de/en/TE0889-02-icoUSBaseboard-FTDI-Interfacebasis-for-icoBoard?c=471) instead. When I try to compile the Icoboard project, I get the following error: "icoprog.cc:41:12: fatal error:
<llee454> wiringPi.h: No such file or directory"
<llee454> Is it possible to use icestorm (or some other open source programmer) to flash an Icoboard through an Icoboard Base?
<daveshah> there should be a make option to use USB instead
<llee454> I see.
<llee454> I found it. Thanks daveshah, Lofty, and tpb.
<Lofty> tpb's just a bot
<Lofty> tpb: version
<tpb> Lofty: The current (running) version of this Supybot is 0.83.4.1. The newest version available online is 0.83.4.1.
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<llee454> Can anyone tell me where I can find documentation explaining how to read and write to the SRAM devices embedded on an Icoboard from a Verilog file? Also, where I might find the pcb names for the clock signals?
<Lofty> As an external device, it'll be accessed as top-level module I/O
<llee454> Ok. I assume that means that I will need to have a set of inputs/outputs for my verilog module and then connect those ports to the device using a PCB file mapping. But, I'm not sure where the PCB names are documented. Nor do I know where the spec describing the SRAM ports are. Do you know where I can find these?
<Lofty> I don't, unfortunately
<Lofty> My expertise is on the Cyclone V ecosystem, mostly >.>
<daveshah> There should be a schematic on the Trenz site
<llee454> I see. Thanks Lofty.
<daveshah> and a part number for the SRAM from which you can find a datasheet
<llee454> Thanks daveshah
<llee454> Great I think that I found the schematic (https://drive.google.com/file/d/0By-zY9AlHqXIdHFDZ2Q1aG10eVE/view). It appears that the SRAM device is presented on page 4. Am I right to conclude that I can access the A0 port of the memory device by mapping an output port from my verilog module to IO21B in the PCB file?
<daveshah> Yes although you use the ball name not the pin name in the constraints file
<daveshah> So N2 not IO21B
<llee454> How did you determine that n2 = IO21B?
<llee454> Nevermind I see.
<llee454> Thanks!!
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