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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? | 15:30 |
|---|---|---|
| thardin | I'm looking at the possibility of locking it to a 1-100 kHz reference | 15:30 |
| thardin | synthesizes at least | 15:39 |
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| thardin | assuming I get this to work, it would be kind of amazing | 15:40 |
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| llee454 | Hi does anyone know of an appropriate channel to post questions about iceprog? | 16:52 |
| Lofty | Here is fine | 16:52 |
| Lofty | Or ##openfpga | 16:52 |
| 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 | 16:54 |
| llee454 | 0x000000.." | 16:54 |
| llee454 | Any ideas? | 16:54 |
| daveshah | Are the jumpers on your board definitely configured for flash | 16:54 |
| daveshah | ? | 16:54 |
| daveshah | Oh hang on icoboard | 16:55 |
| daveshah | They don't use iceprog, you need to use icoprog | 16:55 |
| daveshah | from https://github.com/cliffordwolf/icotools | 16:55 |
| tpb | Title: GitHub - cliffordwolf/icotools: Tools and Examples for IcoBoard (at github.com) | 16:55 |
| llee454 | Thanks! You guys are awesome | 16:55 |
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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: | 17:02 |
| llee454 | wiringPi.h: No such file or directory" | 17:03 |
| llee454 | Is it possible to use icestorm (or some other open source programmer) to flash an Icoboard through an Icoboard Base? | 17:03 |
| daveshah | there should be a make option to use USB instead | 17:08 |
| llee454 | I see. | 17:08 |
| llee454 | I found it. Thanks daveshah, Lofty, and tpb. | 17:09 |
| Lofty | tpb's just a bot | 17:10 |
| Lofty | tpb: version | 17:10 |
| tpb | Lofty: The current (running) version of this Supybot is 0.83.4.1. The newest version available online is 0.83.4.1. | 17:10 |
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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? | 18:09 |
| Lofty | As an external device, it'll be accessed as top-level module I/O | 18:14 |
| 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? | 18:16 |
| Lofty | I don't, unfortunately | 18:19 |
| Lofty | My expertise is on the Cyclone V ecosystem, mostly >.> | 18:20 |
| daveshah | There should be a schematic on the Trenz site | 18:20 |
| llee454 | I see. Thanks Lofty. | 18:20 |
| daveshah | and a part number for the SRAM from which you can find a datasheet | 18:21 |
| llee454 | Thanks daveshah | 18:21 |
| 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? | 18:25 |
| daveshah | Yes although you use the ball name not the pin name in the constraints file | 18:25 |
| daveshah | So N2 not IO21B | 18:26 |
| llee454 | How did you determine that n2 = IO21B? | 18:30 |
| llee454 | Nevermind I see. | 18:31 |
| llee454 | Thanks!! | 18:31 |
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