00:47 <mtrbot-ml> [mattermost] <sb10q> @astro is the new JTAG working properly?

00:47 <mtrbot-ml> [mattermost] <astro> yes, thank you

00:48 <mtrbot-ml> [mattermost] <sb10q> @hartytp will do; I can stick an actual peltier + thermistor if that helps, I have an assembly ready

00:49 <mtrbot-ml> [mattermost] <astro> does that mean I get an actual adc response from pwm output?

00:50 <mtrbot-ml> [mattermost] <sb10q> @astro yes (with delays from the thermal mass etc.)

00:51 <mtrbot-ml> [mattermost] <sb10q> @pathfinder49 just to make sure I'm not going to be doing something dumb: I unsolder the diode circled in this picture, and that's all, correct? @pathfinder49 just to make sure I'm not going to be doing something dumb: I unsolder the diode circled in this picture, and that's all, correct? :

02:44 <_whitenotifier> [nmigen] RobertBaruch opened issue #211: Right way to express a bundle of Signals? - https://git.io/Je3mW

02:47 <_whitenotifier> [nmigen] whitequark commented on issue #211: Right way to express a bundle of Signals? - https://git.io/Je3ml

02:57 <_whitenotifier> [nmigen] whitequark commented on issue #211: Right way to express a bundle of Signals? - https://git.io/Je3mu

03:15 <_whitenotifier> [nmigen] RobertBaruch commented on issue #211: Right way to express a bundle of Signals? - https://git.io/Je3mr

03:17 <_whitenotifier> [nmigen] whitequark commented on issue #211: Right way to express a bundle of Signals? - https://git.io/Je3mo

03:23 <_whitenotifier> [nmigen] RobertBaruch commented on issue #211: Right way to express a bundle of Signals? - https://git.io/Je3mX

03:24 <_whitenotifier> [nmigen] whitequark commented on issue #211: Right way to express a bundle of Signals? - https://git.io/Je3m1

03:25 <_whitenotifier> [nmigen] RobertBaruch commented on issue #211: Right way to express a bundle of Signals? - https://git.io/Je3mM

06:59 <mtrbot-ml> [mattermost] <hartytp> @sb10q that’s the one

08:31 <harryho> whitequark: Is there an equivalent of DDRInput/DDROutput in nMigen? Thanks~

08:36 <whitequark> harryho: yes. platform.request("pin", xdr=2)

08:37 <harryho> Aha, thanks!

08:38 <whitequark> are you working on something specific? just curious

09:34 <harryho> whitequark: I'm looking into the RGMII interface as defined in MiSoC's liteEth_mini core

09:35 <whitequark> aha

09:40 <mtrbot-ml> [mattermost] <pkulik> @rjo I'll add pull down to choose Si5324 input on ADCLK948 and pullups to disable output of Si549 (and pads for pulldowns to change in bom later if we stick with si549)

09:42 <rjo[m]> pkulik: sounds good.

09:57 <lkcl> whitequark: proposal going in, your team's included. https://libre-riscv.org/nlnet_2019_coriolis2/ got to be submitted within a few days (to get feedback in case it needs changing)

09:57 <lkcl> brb

09:58 <whitequark> lkcl: ok.

10:00 <whitequark> lkcl: btw. the focus for nmigen 0.2 will be "simulation improvements". you might want to mention that, seeing as your code spends a lot of time in simulation

10:18 <mtrbot-ml> [mattermost] <hartytp> @pkulik btw I checked on Mouser recently and it looks like the LVCMOS Si549 (current BOM) are hard to get in small quantities, but the LVDS ones are now cheaply available. we should use them

10:18 <mtrbot-ml> [mattermost] <hartytp> @astro PWM works nicely

10:18 <mtrbot-ml> [mattermost] <hartytp> thanks!

10:19 <mtrbot-ml> [mattermost] <hartytp> can you add a TEC driver interface which exposes individual PWM signals in terms of the quantities users want to work with?

10:19 <mtrbot-ml> [mattermost] <hartytp> e.g. set_itec, set_i_max, set_i_neg_max, set_v_max or whatever for each channel?

10:19 <mtrbot-ml> [mattermost] <hartytp> once that's done we'll crank the TEC driver up to max with a 1Ohm load and see what melts

10:34 <mtrbot-ml> [mattermost] <pkulik> @hartytp Availability may change before production many times

11:03 <gruetzkopf> lkcl: you might want to fix the requested amount ;)

11:03 <gruetzkopf> (your stated currency does not exist)

11:37 <mtrbot-ml> [mattermost] <sb10q> @hartytp the schematics for thermostat shows 5-pin connectors for the TEC and thermistor, but the board has 4-pin connectors. what's happening?

11:39 <mtrbot-ml> [mattermost] <hartytp> Greg

11:39 <mtrbot-ml> [mattermost] <hartytp> Is what’s happeninng

11:40 <mtrbot-ml> [mattermost] <hartytp> @rjo already raised this issue. The production version does not math the schematics because the schematic seems to have had some changes made post production

11:42 <mtrbot-ml> [mattermost] <hartytp> No big changes afaict but I can’t find the exact schematics for what was produced

11:46 <mtrbot-ml> [mattermost] <sb10q> l,

11:46 <mtrbot-ml> [mattermost] <sb10q> okay, so what is the hardware pinout?

11:47 <mtrbot-ml> [mattermost] <sb10q> from what I gather looking at the PCB traces he simply removed the central GND connector?

11:47 <mtrbot-ml> [mattermost] <sb10q> from what I gather looking at the PCB traces he simply removed the central GND pin?

11:56 <mtrbot-ml> [mattermost] <sb10q> of course, two 2-pin connectors do not fit into a 4-pin connector. sigh.

12:21 <mtrbot-ml> [mattermost] <sb10q> @astro how are you flashing the thermostat?

12:22 <mtrbot-ml> [mattermost] <sb10q> @astro the openocd.cfg has the warning I pointed above and afterwards the board refuses to answer ping

12:25 <mtrbot-ml> [mattermost] <sb10q> with gdb: "Program received signal SIGTRAP, Trace/breakpoint trap. 0x000181c4 in __syscall ()"

12:25 <mtrbot-ml> [mattermost] <sb10q>

12:29 <mtrbot-ml> [mattermost] <sb10q> okay it works now

12:29 <mtrbot-ml> [mattermost] <sb10q> aah, semihosting

12:29 <mtrbot-ml> [mattermost] <sb10q> ffs

12:39 <mtrbot-ml> [mattermost] <sb10q> @astro i have removed the adc diode and added a thermistor on ch2. TEC is not connected since I couldn't get the PWM to work

12:39 <mtrbot-ml> [mattermost] <sb10q> the ADC seems to respond to the thermistor

14:05 <mtrbot-ml> [mattermost] <hartytp> @sbo the pinout is probing with a dmm

14:06 <mtrbot-ml> [mattermost] <hartytp> It’s tec +- ADC+- no gnd as you say

14:06 <mtrbot-ml> [mattermost] <hartytp> Pwm worked fine for me

14:06 <mtrbot-ml> [mattermost] <hartytp> Well I measure voltages at the tec input haven’t tried to get current out yet

14:26 <lkcl> gruetzkopf, thx :)

14:27 <lkcl> whitequark: the thing we really need is to be able to use nmigen for ASICs. if simulation time improves, _great_.

14:27 <lkcl> we're looking at... mm... starting 4-6 months from now

19:33 <mtrbot-ml> [mattermost] <astro> @sb10q yes, I've had ethernet problems yesterday...

19:35 <mtrbot-ml> [mattermost] <astro> @hartytp working PWM makes me happy; now I have to learn about the TEC interface

20:39 <mtrbot-ml> [mattermost] <sb10q> All I've seen was due to semihosting

20:40 <mtrbot-ml> [mattermost] <sb10q> If you flash a binary with semi hosting enabled and run it without a debugger, it stupidly crashes

21:02 <mtrbot-ml> [mattermost] <astro> I know, but I always run through gdb so far