Rust ESP32 Community Meeting 2023-12-21

[SergioGasquez]

Please add topics and links to this discussion.

The meeting is scheduled for 21st December 2023 - 5 pm CET/GMT+1 (a.k.a. Brno time) via Google Meet. The meeting invite is automatically sent to attendees of previous meetings. If you'd like to join, please notify us at https://matrix.to/#/#esp-rs-community-meetins:matrix.org

You can find information from the previous meeting at https://github.com/esp-rs/rust/discussions

If you find a topic exciting, click Arrow Icon or Emoji, and your vote will give the preference to the topic.

[georgik]

Rust Releases

• 1.74.0.1 - latest release with LLVM 16 and GCC 13 - https://github.com/esp-rs/rust-build/releases/tag/v1.74.0.1
• 1.75.0.0 - scheduled official release with LLVM 16 and GCC 13 - around 6th January 2024

ESP-IDF Releases

• Available releases of ESP-IDF: 5.1.2, 5.0.4, 4.4.6, 4.3.5, 4.2.5
• New release available: 5.2-beta1, 5.0.5
• Upcoming release: v5.2-beta2

Magazine

• Espressif Guest-Edited Edition of Elektor Mag

Wokwi

• diagram.json editor integrated in VS Code
• console logs updates

Experiments

• PS/2 keyboard support with ESP32-C3
  • for USB keyboard (with COMBO mode support) skip PS/2 connector and wire to USB according to USB to PS/2 schematics
  • sync version working - based on interrupts - requires at least 80 MHz
  • async implementation requires clocks at 160 MHz to decode signals from PS/2 correctly
• RustZX-ESP32 in Bare Metal
  • supports keyboard input over UART1 (using the second module mentioned above)

Update hal:

• ESP32 Spooky Maze Game v0.10.0
• ESP32 Conway's Game of Life v0.4.0
• ESP32 Rust LilyGo T5 ePaper

[jessebraham]

ESP-PACS

• New package releases for ESP32-C6/H2 esp-pacs#176
  • https://crates.io/crates/esp32c6/0.10.0
  • https://crates.io/crates/esp32h2/0.6.0
• New package releases esp-pacs#178
  • https://crates.io/crates/esp32c2/0.17.0
  • https://crates.io/crates/esp32c3/0.20.0
  • https://crates.io/crates/esp32c6/0.11.0
  • https://crates.io/crates/esp32h2/0.7.0
• Add an additional automation task for publishing packages esp-pacs#180
• Correct/improve some field descriptions for ESP32-S3's LCD_CAM peripheral esp-pacs#182

ESP-HAL

• Update top-level README.md, HAL package documentation esp-hal#1017
• New package releases esp-hal#1018
  • https://crates.io/crates/esp-riscv-rt/0.6.0
  • https://crates.io/crates/esp-hal-procmacros/0.8.0
  • https://crates.io/crates/esp-hal-common/0.14.0
  • https://crates.io/crates/esp-hal-smartled/0.7.0
  • https://crates.io/crates/esp32-hal/0.17.0
  • https://crates.io/crates/esp32c2-hal/0.12.0
  • https://crates.io/crates/esp32c3-hal/0.14.0
  • https://crates.io/crates/esp32c6-hal/0.7.0
  • https://crates.io/crates/esp32h2-hal/0.5.0
  • https://crates.io/crates/esp32s2-hal/0.14.0
  • https://crates.io/crates/esp32s3-hal/0.14.0
• New patch release for esp-hal-common esp-hal#1022
  • https://crates.io/crates/esp-hal-common/0.14.1
• Allow for splitting of the USB Serial JTAG peripheral into tx/rx components esp-hal#1024
• Assert that the hardware and software digests match for SHA examples esp-hal#1026
• Clean up example imports esp-hal#1027

ESP-PRINTLN

• Update CI workflow esp-println#77
• Version 0.8.0 esp-println#78
  • https://crates.io/crates/esp-println/0.8.0

OTHER

• Update to latest HALs, various fixes/cleanup esp-flasher-stub#39
• Allow specifying a chip via environment variable probe-rs/probe-rs#1958

[SergioGasquez]

book

• Update no_std current support book#131
• Update ESP-IDF prerequisites and probe-rs improvements book#132

esp-hal

• Fix SHA esp-hal#1021

esp-idf-template

• Update devcontainer esp-idf-template#177

esp-pacs

• Fix SHA H_MEM dimension esp-pacs#177

esp-println

• Remove defmt-raw docs esp-println#79

esp-template

• Update devcontainer esp-template#130
• Add a link to the no_std training esp-template#131
• Rework CI esp-template#132
• Fix template when not using advanced prompts esp-template#134
• Update hals version esp-template#135
• Fix CI includes esp-template#137

esp-wifi

• Update current support esp-wifi-sys#381
• Fix typo esp-wifi-sys#382

espflash

• Support ESP32-C3 ECO6 and ECO7 espflash#529
• Initial support for P4 espflash#533
• Started working on HIL: https://github.com/esp-rs/espflash/tree/feat/hil
• Working on documenting defmt

espup

• Begin next release cycle espup#405

no_std-training

• Add link to the std-training no_std-training#28

slint

• Use custom runner to flash and update espflash command slint-ui/slint#4186

std-training

• Only run Wokwi simualtions in esp-rs repos std-training#227

[JurajSadel]

esp-hal

• reviewed: C6 PMU startup configuration esp-hal#974, Fix/c6 h2 interrupt disabling esp-hal#1040

• Don't enable async interrupts without async feature esp-hal#1042

• Check missing embassy_XX examples to the CI esp-hal#1048

esp-wifi

• reviewed: Bump esp-hal versions, patch embassy-net esp-wifi-sys#386

[bjoernQ]

esp-hal

• zero-cost stack overflow protection for C6/H2
  • C6/H2: flip-link feature esp-hal#1008
• update USB OTG driver
  • Update esp-synopsys-usb-otg esp-hal#1015
• merge .text_init int .text section
  • Merge .text_init into .text on RISC-V esp-hal#1038
  • solves merge_adjacent_segements fails if there is a gap between .text and .text_init segments espflash#522
• interesting finding
  • C6/H2: Enabling SYSTIMER_TARGET0 interrupt also enables UART0 interrupt esp-hal#1039
  • fix
    • Fix/c6 h2 interrupt disabling esp-hal#1040
• a way to override interrupt handlers implemented by the HAL
  • Make HAL defined interrupt handlers overridable esp-hal#1047
  • decided to not go with this approach and closed the PR

esp-synopsys-usb-otg

• rebased on upstream, released 0.4.0

esp-backtrace

• show a nicer hint when a stack overflow is detected on C6/H2 via flip-link feature
  • Hint on detected stack-overflow esp-backtrace#41
• remove RTT feature
  • Remove RTT feature esp-backtrace#42

esp-wifi

• fix the Wireshark extcap plugin
  • Fix the extcap esp-wifi-sys#385
• update HAL
  • Bump esp-hal versions, patch embassy-net esp-wifi-sys#386

esp-ieee-802154

• update HAL
  • Bump esp-hal versions esp-ieee802154#16

esp-openthread

• update HAL etc.
  • Update esp-hal / ieee802154 dependency esp-openthread#3

esp-flash

• looked into merge_adjacent_segements fails if there is a gap between .text and .text_init segments espflash#522
  • could be solved via linker script changes instead
• looked into Update to latest HALs, various fixes/cleanup esp-flasher-stub#39
  • noted my findings there - found one problem but there are still more
  • also identifier the other problem

bleps

• found the solution for the truncated public key in pairing
• merged secure pairing feature
• reviewed and merged contributions from the community

Other

• BLE HID keyboard experiment for ESP32-C3 ... works on Android but not on Windows currently
  • https://github.com/bjoernQ/esp32c3-ble-hid

[apollolabsdev]

2023 EOY Embedded Rust Education Thoughts

• https://apollolabsblog.hashnode.dev/embedded-rust-education-2023-reflections-2024-visions