#nmigen on 2021-03-12 — irc logs at freenode.irclog.whitequark.org

2021-02-27 05:40 whitequark[m] changed the topic of #nmigen to: nMigen hardware description language · code https://github.com/nmigen · logs https://freenode.irclog.whitequark.org/nmigen

00:24 lkcl_ has quit [Ping timeout: 260 seconds]

00:37 lkcl_ has joined #nmigen

00:44 <_whitenotifier-4> [YoWASP/yosys] whitequark pushed 1 commit to develop [+0/-0/±1] https://git.io/Jqc32

00:44 <_whitenotifier-4> [YoWASP/yosys] whitequark 6112fb1 - Update dependencies.

00:51 lf_ has joined #nmigen

00:51 lf has quit [Ping timeout: 260 seconds]

01:50 Bertl_oO is now known as Bertl_zZ

02:05 pftbest has quit [Remote host closed the connection]

02:26 pftbest has joined #nmigen

02:31 pftbest has quit [Ping timeout: 272 seconds]

02:56 Degi_ has joined #nmigen

02:58 Degi_ is now known as Degi

03:11 _whitelogger has joined #nmigen

04:53 PyroPeter_ has joined #nmigen

04:56 PyroPeter_ is now known as PyroPeter

04:56 PyroPeter has quit [Ping timeout: 246 seconds]

05:33 revolve has quit [Ping timeout: 246 seconds]

05:41 revolve has joined #nmigen

06:02 cr1901_modern has quit [Read error: Connection reset by peer]

06:39 plaes_ has quit [Quit: Reconnecting]

06:39 plaes has joined #nmigen

06:42 cr1901_modern has joined #nmigen

07:00 emeb_mac has quit [Quit: Leaving.]

07:10 pftbest has joined #nmigen

07:22 jeanthom has joined #nmigen

07:30 pftbest has quit [Remote host closed the connection]

07:30 pftbest has joined #nmigen

08:46 Bertl_zZ is now known as Bertl

08:57 chipmuenk has joined #nmigen

09:36 chipmuenk1 has joined #nmigen

09:40 chipmuenk has quit [Ping timeout: 260 seconds]

09:40 chipmuenk1 is now known as chipmuenk

10:13 chipmuenk has quit [Read error: Connection reset by peer]

10:14 chipmuenk1 has joined #nmigen

10:18 chipmuenk1 has quit [Ping timeout: 260 seconds]

10:21 lkcl_ has quit [Ping timeout: 246 seconds]

10:34 lkcl_ has joined #nmigen

10:44 lambda has quit [Ping timeout: 240 seconds]

11:00 lambda has joined #nmigen

11:01 bvernoux has joined #nmigen

12:03 revolve has quit [Read error: Connection reset by peer]

12:06 revolve has joined #nmigen

12:06 bvernoux1 has joined #nmigen

12:09 bvernoux has quit [Ping timeout: 245 seconds]

12:10 bvernoux1 has quit [Client Quit]

12:10 bvernoux has joined #nmigen

12:23 jeanthom has quit [Remote host closed the connection]

12:23 jeanthom has joined #nmigen

12:42 lkcl_ has quit [Ping timeout: 256 seconds]

12:55 Bertl is now known as Bertl_oO

12:55 lkcl_ has joined #nmigen

12:59 jeanthom has quit [Ping timeout: 264 seconds]

13:54 FFY00_ has quit [Remote host closed the connection]

14:39 FFY00_ has joined #nmigen

15:32 pftbest has quit [Remote host closed the connection]

15:44 pftbest has joined #nmigen

15:48 pftbest has quit [Remote host closed the connection]

15:52 pftbest has joined #nmigen

15:53 pftbest_ has joined #nmigen

15:54 pftbest__ has joined #nmigen

15:54 pftbest_ has quit [Read error: Connection reset by peer]

15:57 pftbest has quit [Ping timeout: 260 seconds]

16:58 jeanthom has joined #nmigen

17:22 chipmuenk has joined #nmigen

17:47 chipmuenk has quit [Ping timeout: 260 seconds]

18:33 revolve has quit [Read error: Connection reset by peer]

18:35 revolve has joined #nmigen

19:15 <_whitenotifier-4> [nmigen] cr1901 opened issue #599: Possibly-misleading error when forgetting the `number` argument to Resource `__init__`. - https://git.io/JqCka

19:24 chipmuenk has joined #nmigen

19:33 <cr1901_modern> Okay, based on the issue, it's clear that I have somehow COMPLETELY forgotten how to add resources to an nmigen board. Does anyone have an example?

19:40 <cr1901_modern> Right, Pins are one-indexed and the actual pin/pad numbers are abstracted away

19:40 <whitequark> well, they aren't necessarily one-indexed, it's just that i've yet to see a chip starting at pin 0

19:40 <whitequark> you can use any sort of associative array of pin names

19:43 <cr1901_modern> Indeed, but I spoke imprecise- connector pins start at "1". I was trying "gpio_0:13" (b/c the actual pin is called "13" in the LPF). Then I tried "gpio_0:0". _Then_ I finally did "gpio_0:1".

19:43 <cr1901_modern> B/c I forgot the syntax

19:44 <_whitenotifier-4> [nmigen] cr1901 edited issue #599: Possibly-misleading error when forgetting the `number` argument to Resource `__init__`. - https://git.io/JqCka

19:44 <adamgreig> cr1901_modern: when the actual numbering starts from 0, you can pass a dict to the connectors list in the platform to make it start at 0 instead, just in case that wasn't clear

19:45 <cr1901_modern> Oh?

19:46 <cr1901_modern> As an example, https://github.com/nmigen/nmigen-boards/blob/master/nmigen_boards/mercury.py#L72-L76 the first pin is called "gpio_0:1", for "pin 1 on the zeroth gpio bus". I didn't know you could start it at, say, "gpio_0:0"

19:46 <adamgreig> The connector pin names are ints from 1 by default if you pass a list of fpga pins, but you can instead specify a dict of names to FPGA pins, where the names could be integers from 0

19:46 <cr1901_modern> Okay, good to know

19:47 <adamgreig> Yea, in that case a dict instead of your string of names

19:47 <adamgreig> I've done it where the connector pins were labelled 0, 1, 2 etc

19:47 <cr1901_modern> It makes sense... I'm in a bit of a fog today

19:47 FFY00_ has quit [Ping timeout: 260 seconds]

19:49 FFY00_ has joined #nmigen

20:01 <cr1901_modern> With this source file: http://ix.io/2SBy

20:02 <cr1901_modern> I get this assertion failure: http://ix.io/2SBz. Anyone have any idea why?

20:09 emeb_mac has joined #nmigen

20:09 <cr1901_modern> Hmm, Instance("top", i_a=a, i_b=b, i_sel=sel) works, but Instance("top", i_a=a, i_b=b, i_sel=sel, o_o=led) does not...

20:10 <cr1901_modern> ooooh okay I see it

20:10 <cr1901_modern> dir is input by default I think: I need "Resource("led", 0, Pins("gpio_0:1", dir="o"))"

20:32 <adamgreig> cr1901_modern: oh btw you can also just put connector pin numbers and specify conn=("gpio", 0) to Pins, rather than writing out "gpio_0:1"

20:34 <cr1901_modern> Indeed, and that is how I SHOULD be doing it

20:35 <cr1901_modern> the "gpio_0:1" syntax is an escape hatch- I don't remember why

21:01 pftbest__ has quit [Remote host closed the connection]

21:01 pftbest has joined #nmigen

21:25 pftbest has quit [Remote host closed the connection]

21:26 pftbest has joined #nmigen

21:30 pftbest has quit [Remote host closed the connection]

21:30 pftbest has joined #nmigen

21:33 pftbest has quit [Remote host closed the connection]

21:51 pftbest has joined #nmigen

21:55 pftbest has quit [Ping timeout: 245 seconds]

22:10 chipmuenk1 has joined #nmigen

22:12 chipmuenk has quit [Ping timeout: 264 seconds]

22:14 chipmuenk1 has quit [Ping timeout: 246 seconds]

22:40 roamingr1 has quit [Ping timeout: 240 seconds]

22:41 roamingr1 has joined #nmigen

22:49 roamingr1 has quit [Ping timeout: 246 seconds]

22:51 roamingr1 has joined #nmigen

23:13 jeanthom has quit [Ping timeout: 246 seconds]