07:17 <re_irc> <Anand Gedam> https://psion.agg.io/_matrix/media/r0/download/matrix.org/vXnHjBYuPsLSqGqrmVAUMUil/Screenshot%20from%202022-04-29%2012-43-36.png

07:17 <re_irc> <Anand Gedam> Hi All,

07:17 <re_irc> I am newbie in embedded Rust,

07:17 <re_irc> Code i have taken from the hal crate examples folder.

07:17 <re_irc> I am trying to compile the program simple Led Blink using stm32f4xx-hal.

07:17 <re_irc> ... long message truncated: https://psion.agg.io/_matrix/media/r0/download/psion.agg.io/9e48f74cdf5a3f6f097de8e2ce656a15d9778742094a5c2073d7f7a0729f38bf (6 lines)

07:39 <Darius> the bridge ate your screenshot

07:39 <Darius> better if you just pastebin the compiler output somewhere

07:39 <re_irc> <therealprof> Anand Gedam: You need to define the specific chip to use via feature on "stm32f4xx-hal", e.g. feature=stm32f401.

08:07 <re_irc> <Anand Gedam> therealprof: thanks for the hint, Its compiling now. 🙂

10:47 <re_irc> <lulf> Since this is the week of the bootloader! Another article from Drogue IoT https://twitter.com/DrogueIoT/status/1519991277277827072

13:47 <re_irc> <James Munns> If any of you are working on a project, and could use sponsorship, I highly recommend you apply for a foundation grant. I'd love to see as much of that money go to the embedded ecosystem as possible: https://twitter.com/rust_foundation/status/1520032784751996929

13:48 <re_irc> <James Munns> If you're applying for an embedded grant, and want help preparing or reviewing your proposal, feel free to DM me. I'm happy to help as much as I can (I can't write it for you, but might be able to review or suggest phrasing, etc.)

14:02 <re_irc> <James Munns> (you can DM me here on matrix, or on twitter)

17:12 <re_irc> <dngrs (spookyvision@github)> trying my luck at ITM again, and .. hm. What might be going on here?

17:12 <re_irc> Finished dev [unoptimized + debuginfo] target(s) in 0.02s

17:12 <re_irc> ❯ cargo run | itm-decode

17:12 <re_irc> Running `target/debug/itm`

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17:55 <re_irc> <riskable> Why is it when I call "usb_dev.poll(&mut [keyboard])" everything is hunky dory but when I call "usb_dev.poll(&mut [keyboard, mouse])" I get "invalid device descriptor" errors in Windows? (it works fine in Linux BTW)

18:01 <Lumpio-> Did you enable the large control transfer feature

18:02 <Lumpio-> ...that feature is such a hack. I already figured out a way to do large descriptors without permanently sacrificing a blob of RAM for it but meh.

18:26 <re_irc> <riskable> Lumpio-: How?

18:28 <Lumpio-> Enable the control-buffer-256 crate feature

18:47 <re_irc> <dngrs (spookyvision@github)> solved: "itm-decode" was just not necessary; viewing SWO output in a terminal instead 🤦

21:11 <re_irc> <Tatu Pesonen> Hello! I want to dip my feet into embedded development and I want to use Rust for it since I find the language interesting. Now I gotta say I don't have any past experience with embedded programming, I have this small PoC I want to do for my company.

21:11 <re_irc> What development boards do you suggest to start out with? I'm going to need internet connectivity and eventually NFC/RFID

21:11 <re_irc> <newam> if you want internet via Ethernet the STM32H7 boards are good.

21:12 <re_irc> <Tatu Pesonen> Sorry for not being specific enough, I will propably need wireless internet.

21:13 <re_irc> <Tatu Pesonen> * WiFi. I've been thinking of the Raspberry Zero but I don't know if it works well with Rust

21:13 <re_irc> <newam> The raspberry pi zero would be a good place to start, then you don't have to touch "no_std"

21:14 <re_irc> <Tatu Pesonen> Sounds good. I'll grab one of those then, and I think you can also get an RFID module fori t

21:14 <re_irc> <Tatu Pesonen> * for it

21:14 <re_irc> <newam> https://github.com/golemparts/rppal

21:14 <re_irc> That crate will work for the pi zero ^

21:14 <re_irc> <Tatu Pesonen> Awesome 😄 thanks a bunch newam!

21:15 <re_irc> <newam> NP!

22:01 <re_irc> <Lachlan> Anyone know what this error could mean?

22:01 <re_irc> RTT error: Control block corrupted: read pointer is 3221225476 while buffer size is 1024 for "up" channel 0 (defmt)

22:03 <re_irc> <Lachlan> I'm not using "wfi"/"wfe".

22:05 <re_irc> <newam> 3221225476 -> "0xc0000004", seems like a special number.

22:06 <re_irc> <newam> RTT memory corrupted maybe?

22:08 <re_irc> <Lachlan> Possibly, I can't think of anything i'm doing that could result in that though

22:17 <re_irc> <Lachlan> The probe connection seems unstable over long-periods of time (10-20+ minutes)

22:18 <re_irc> <newam> What probe? I have a few boards running endurance tests for >months over probe-rs with this: https://github.com/newAM/rtt-daemon/

22:19 <re_irc> <Lachlan> ST-link v2

22:20 <re_irc> <newam> Should be fine, I have a STM32-WL and a STM32-F0 running with STLinks long term.

22:20 <re_irc> Maybe try updating the firmware on them? I have had problems with older STLink firmwares

22:21 <re_irc> <Lachlan> It could definitely be an old firmwire

22:21 <re_irc> <Lachlan> * firmware

22:21 <re_irc> <Lachlan> I'll update when I get the chance

22:21 <re_irc> <newam> ST has a java tool somewhere on their site to update the firmware

22:22 <re_irc> <Lachlan> Java? gross :P

22:23 <re_irc> <newam> Every time I open up ST software the Java swing UIs bring me right back to 2009.

22:23 <re_irc> <newam> Simpler times for GUIs. No DPI scaling.

22:24 <re_irc> <Lachlan> good old days haha

23:54 <re_irc> <James Munns> Fun fact, that I TOTALLY don't know from personal experience, but you can update the knockoff stlinks with the official tool

23:54 <re_irc> <James Munns> Lachlan: I only get errors like that when I end up corrupting the defmt header

23:54 <re_irc> <James Munns> like, buffer overflow, bad linker script, etc.