ESP32-C3-DevKit-RUST-1 board

I bought a ESP32-C3-DevKit-RUST-1 devkit aka the RUST ESP board.

  • SoC: ESP32-C3-MINI-1
  • 6DoF IMU
  • a temperature and humidity sensor
  • a Li-Ion battery charger
  • Type-C USB

features

  • 32-bit RISC-V single-core processor, up to 160MHz
  • 384KB ROM
  • 400KB SRAM (16KB for cache)
  • 8KB SRAM in RTC
  • 22× programmable GPIOs
  • 3× SPI
  • 2× UART
  • 1× I2C
  • 1× I2S
  • 1× TWAI
  • 2× 12-bit SAR ADCs, up to 6 channels
  • 1× temperature sensor
  • Full-speed USB Serial/JTAG controller
  • General DMA controller (GDMA)
  • LED PWM controller (LEDC)
  • Remote Control Peripheral (RMT)
  • 1× 52-bit system timer
  • 2× 54-bit general-purpose timers
  • 3× watchdog timers

wireless

  • IEEE 802.11 b/g/n-compliant
  • luetooth 5, Bluetooth mesh

back to microcontrollers page.

Links

Espressif Systems ESP32-C3-DevKit-RUST-1, Github Rust ESP board User Guide, hardware, Ferrous Systems Espressif trainings, Mouser info about ESP32-C3-DevKit-RUST-1 Board,

local links

c1, c2, vm4,

History

2023-11-30: eb - probe-rs testing

tingo@kg-elitebook$ probe-rs --help
The probe-rs CLI

Usage: probe-rs [OPTIONS] <COMMAND>

Commands:
  dap-server  Debug Adapter Protocol (DAP) server. See https://probe.rs/docs/tools/vscode/
  list        List all connected debug probes
  info        Gets info about the selected debug probe and connected target
  reset       Resets the target attached to the selected debug probe
  gdb         Run a GDB server
  debug       Basic command line debugger
  download    Download memory to attached target
  erase       Erase all nonvolatile memory of attached target
  run         Flash and run an ELF program
  attach      Attach to rtt logging
  trace       Trace a memory location on the target
  itm         Configure and monitor ITM trace packets from the target
  chip        Inspect internal registry of supported chips
  benchmark   Measure the throughput of the selected debug probe
  profile     Profile on-target runtime performance of target ELF program
  read        Read from target memory address
  write       Write to target memory address
  help        Print this message or the help of the given subcommand(s)

Options:
      --log-file <LOG_FILE>
          Location for log file

          If no location is specified, the log file will be stored in a default directory.

  -h, --help
          Print help (see a summary with '-h')

  -V, --version
          Print version

tingo@kg-elitebook$ probe-rs list
The following debug probes were found:
[0]: ESP JTAG (VID: 303a, PID: 1001, Serial: 34:85:18:01:62:40, EspJtag)

tingo@kg-elitebook$ probe-rs info
Probing target via JTAG

No DAP interface was found on the connected probe. Thus, ARM info cannot be printed.
RISCV Chip:
    IDCODE: 0000005c25
     Version:      0
     Part:         5
     Manufacturer: 1554 (Espressif Systems (Shanghai)  Co Ltd)

Probing target via SWD

Error identifying target using protocol SWD: Probe does not support SWD

tingo@kg-elitebook$ sudo probe-rs info
Probing target via JTAG

No DAP interface was found on the connected probe. Thus, ARM info cannot be printed.
RISCV Chip:
    IDCODE: 0000005c25
     Version:      0
     Part:         5
     Manufacturer: 1554 (Espressif Systems (Shanghai)  Co Ltd)

Probing target via SWD

Error identifying target using protocol SWD: Probe does not support SWD

2023-11-30: eb - rust install probe-rs

tingo@kg-elitebook$ cargo install probe-rs --features cli
    Updating crates.io index
  Downloaded probe-rs v0.21.1
  Downloaded 1 crate (2.1 MB) in 0.71s
  Installing probe-rs v0.21.1
    Updating crates.io index
  Downloaded itertools v0.9.0
  Downloaded tracing-log v0.2.0
  Downloaded scroll_derive v0.11.1
  Downloaded git-version v0.3.8
  Downloaded fd-lock v3.0.13
  Downloaded endian-type v0.1.2
  Downloaded Inflector v0.11.4
  Downloaded plain v0.2.3
  Downloaded tracing-serde v0.1.3
  Downloaded hyper-tls v0.5.0
  Downloaded byte-unit v4.0.19
  Downloaded indoc v2.0.4
  Downloaded bitmatch v0.1.1
  Downloaded probe-rs-target v0.21.1
  Downloaded figment v0.10.12
  Downloaded managed v0.8.0
  Downloaded utf8-width v0.1.7
  Downloaded termtree v0.4.1
  Downloaded itm v0.9.0-rc.1
  Downloaded pretty_env_logger v0.5.0
  Downloaded overload v0.1.1
  Downloaded tokio-native-tls v0.3.1
  Downloaded uncased v0.9.9
  Downloaded xmlparser v0.13.6
  Downloaded yansi v1.0.0-rc.1
  Downloaded svd-rs v0.14.6
  Downloaded native-tls v0.2.11
  Downloaded defmt-decoder v0.3.9
  Downloaded sharded-slab v0.1.7
  Downloaded itertools v0.11.0
  Downloaded uriparse v0.6.4
  Downloaded regex-automata v0.1.10
  Downloaded goblin v0.7.1
  Downloaded tracing-subscriber v0.3.18
  Downloaded ratatui v0.23.0
  Downloaded regex-syntax v0.6.29
  Downloaded radix_trie v0.2.1
  Downloaded ron v0.8.1
  Downloaded roxmltree v0.18.1
  Downloaded serde_repr v0.1.17
  Downloaded pear v0.2.7
  Downloaded svd-parser v0.14.4
  Downloaded serde_yaml v0.9.27
  Downloaded uf2-decode v0.2.0
  Downloaded proc-macro2-diagnostics v0.10.1
  Downloaded dunce v1.0.4
  Downloaded pear_codegen v0.2.7
  Downloaded svg v0.14.0
  Downloaded matchers v0.1.0
  Downloaded inlinable_string v0.1.15
  Downloaded nu-ansi-term v0.46.0
  Downloaded rustyline v12.0.0
  Downloaded nibble_vec v0.1.0
  Downloaded cassowary v0.3.0
  Downloaded capstone-sys v0.15.0
  Downloaded schemafy_core v0.6.0
  Downloaded boolean_expression v0.3.11
  Downloaded cargo_toml v0.16.3
  Downloaded schemafy_lib v0.6.0
  Downloaded git-version-macro v0.3.8
  Downloaded schemafy v0.6.0
  Downloaded capstone v0.11.0
  Downloaded gdbstub v0.6.6
  Downloaded 63 crates (7.9 MB) in 1.76s (largest was `capstone-sys` at 4.9 MB)
   Compiling proc-macro2 v1.0.70
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   Compiling ron v0.8.1
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   Compiling kmp v0.1.1
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   Compiling ihex v3.0.0
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    Finished release [optimized] target(s) in 18m 23s
  Installing /home/tingo/.cargo/bin/cargo-embed
  Installing /home/tingo/.cargo/bin/cargo-flash
  Installing /home/tingo/.cargo/bin/probe-rs
   Installed package `probe-rs v0.21.1` (executables `cargo-embed`, `cargo-flash`, `probe-rs`)

2023-11-30: eb - probe-run also works

tingo@kg-elitebook$ probe-run --list-probes
the following probes were found:
[0]: ESP JTAG (VID: 303a, PID: 1001, Serial: 34:85:18:01:62:40, EspJtag)

2023-11-30: eb - after installing cargo-espflash (and gmake), I can do this

tingo@kg-elitebook$ cargo espflash board-info --version
cargo-espflash-espflash-board-info 2.1.0

and

tingo@kg-elitebook$ cargo espflash board-info --port /dev/cuaU0
[2023-11-30T21:02:45Z INFO ] Serial port: '/dev/cuaU0'
[2023-11-30T21:02:45Z INFO ] Connecting...
[2023-11-30T21:02:45Z INFO ] Using flash stub
Chip type:         esp32c3 (revision v0.4)
Crystal frequency: 40MHz
Flash size:        4MB
Features:          WiFi, BLE
MAC address:       34:85:18:01:62:40

2023-05-23: c1 - the SoC is an ESP32 C3 (RISC V), so it needs the nightly toolchain

tingo@kg-core1:~/personal/projects/2023/rust/embedded/riscv $ rustup toolchain install nightly --component rust-src
info: syncing channel updates for 'nightly-x86_64-unknown-freebsd'
info: latest update on 2023-05-23, rust version 1.71.0-nightly (8b4b20836 2023-05-22)
info: downloading component 'rust-src'
info: downloading component 'cargo'
info: downloading component 'clippy'
info: downloading component 'rust-docs'
info: downloading component 'rust-std'
info: downloading component 'rustc'
info: downloading component 'rustfmt'
info: removing previous version of component 'cargo'
info: removing previous version of component 'clippy'
info: removing previous version of component 'rust-docs'
info: removing previous version of component 'rust-src'
info: removing previous version of component 'rust-std'
info: removing previous version of component 'rustc'
info: removing previous version of component 'rustfmt'
info: installing component 'rust-src'
info: installing component 'cargo'
info: installing component 'clippy'
info: installing component 'rust-docs'
  4.6 MiB /  13.6 MiB ( 34 %)   0 B/s in  1s ETA: Unknown                                                           5.9 MiB /  13.6 MiB ( 43 %)   4.6 MiB/s in  2s ETA:  1s                                                           8.6 MiB /  13.6 MiB ( 63 %)   3.0 MiB/s in  3s ETA:  1s                                                          13.6 MiB /  13.6 MiB (100 %)   2.9 MiB/s in  4s ETA:  0s                                                          13.6 MiB /  13.6 MiB (100 %)   3.4 MiB/s in  4s ETA:  0s
info: installing component 'rust-std'
 10.8 MiB /  27.8 MiB ( 39 %)   0 B/s in  1s ETA: Unknown                                                          21.8 MiB /  27.8 MiB ( 79 %)  10.8 MiB/s in  2s ETA:  0s                                                          27.8 MiB /  27.8 MiB (100 %)  10.9 MiB/s in  2s ETA:  0s
info: installing component 'rustc'
 13.8 MiB /  69.7 MiB ( 20 %)   0 B/s in  1s ETA: Unknown                                                          24.7 MiB /  69.7 MiB ( 35 %)  13.8 MiB/s in  2s ETA:  3s                                                          37.2 MiB /  69.7 MiB ( 53 %)  12.4 MiB/s in  3s ETA:  2s                                                          49.6 MiB /  69.7 MiB ( 71 %)  12.4 MiB/s in  4s ETA:  1s                                                          57.4 MiB /  69.7 MiB ( 82 %)  12.4 MiB/s in  5s ETA:  0s                                                          67.9 MiB /  69.7 MiB ( 97 %)  11.5 MiB/s in  6s ETA:  0s                                                          69.7 MiB /  69.7 MiB (100 %)  10.8 MiB/s in  6s ETA:  0s
info: installing component 'rustfmt'

  nightly-x86_64-unknown-freebsd updated - rustc 1.71.0-nightly (8b4b20836 2023-05-22) (from rustc 1.71.0-nightly (4a59ba4d5 2023-05-12))

info: checking for self-update

and the riscv32imc-unknown-none-elf target

tingo@kg-core1:~/personal/projects/2023/rust/embedded/riscv $ rustup target add riscv32imc-unknown-none-elf
info: component 'rust-std' for target 'riscv32imc-unknown-none-elf' is up to date

good. Try probe-run

tingo@kg-core1:~/personal/projects/2023/rust/embedded/riscv $ probe-run --list-probes
Error: no probe was found.

re-try with sudo

tingo@kg-core1:~/personal/projects/2023/rust/embedded/riscv $ sudo probe-run --list-probes
the following probes were found:
[0]: ESP JTAG (VID: 303a, PID: 1001, Serial: 34:85:18:01:62:40, EspJtag)

ok, so it is a permissions problem. Dump device description

root@kg-core1:~ # usbconfig -d ugen3.4 dump_device_desc
ugen3.4: <Espressif USB JTAG/serial debug unit> at usbus3, cfg=0 md=HOST spd=FULL (12Mbps) pwr=ON (500mA)

  bLength = 0x0012 
  bDescriptorType = 0x0001 
  bcdUSB = 0x0200 
  bDeviceClass = 0x00ef  <Miscellaneous device>
  bDeviceSubClass = 0x0002 
  bDeviceProtocol = 0x0001 
  bMaxPacketSize0 = 0x0040 
  idVendor = 0x303a 
  idProduct = 0x1001 
  bcdDevice = 0x0101 
  iManufacturer = 0x0001  <Espressif>
  iProduct = 0x0002  <USB JTAG/serial debug unit>
  iSerialNumber = 0x0003  <34:85:18:01:62:40>
  bNumConfigurations = 0x0001

add a devd config file

tingo@kg-core1:~/personal/projects/2023/rust/embedded/msp430/msp430-test-f5529 $ cat /usr/local/etc/devd/espjtag.conf 
# allow group (operator) to access the usb connection of ESP usb jtag
notify 100 {
        match "system"          "USB";
        match "subsystem"       "INTERFACE";
        match "type"            "ATTACH";
        match "vendor"      "0x303a";
        match "product"     "0x1001";
        action "usb_devaddr=`echo $cdev | sed 's#^ugen##'` && chmod g+rw /dev/usb/${usb_devaddr}.*";
};

and restart devd via service devd restart, then unplug and replug the device.

tingo@kg-core1:~/personal/projects/2023/rust/embedded/riscv $ probe-run --list-probes
the following probes were found:
[0]: ESP JTAG (VID: 303a, PID: 1001, Serial: 34:85:18:01:62:40, EspJtag)

fixed.

2023-05-23: c1 - connecting the board to my c1 workstation. From /var/log/messages

May 23 20:36:47 kg-core1 kernel: ugen3.4: <Espressif USB JTAG/serial debug unit> at usbus3
May 23 20:36:47 kg-core1 kernel: umodem0 on uhub8
May 23 20:36:47 kg-core1 kernel: umodem0: <Espressif USB JTAG/serial debug unit, class 239/2, rev 2.00/1.01, addr 4> on usbus3
May 23 20:36:47 kg-core1 kernel: umodem0: data interface 1, has CM over data, has no break

and

root@kg-core1:~ # sysctl -n dev.umodem.0.ttyname
U0

list the tty devices

root@kg-core1:~ # ll /dev/cuaU* /dev/ttyU*
crw-rw----  1 uucp  dialer  0x1be May 23 20:36 /dev/cuaU0
crw-rw----  1 uucp  dialer  0x1bf May 23 20:36 /dev/cuaU0.init
crw-rw----  1 uucp  dialer  0x1c0 May 23 20:36 /dev/cuaU0.lock
crw-------  1 root  wheel   0x1ac May 23 20:36 /dev/ttyU0
crw-------  1 root  wheel   0x1ad May 23 20:36 /dev/ttyU0.init
crw-------  1 root  wheel   0x1ba May 23 20:36 /dev/ttyU0.lock

and the usb devices

root@kg-core1:~ # ll /dev/ugen3.4 /dev/usb/3.4*
lrwxr-xr-x  1 root  wheel         9 May 23 20:36 /dev/ugen3.4@ -> usb/3.4.0
crw-------  1 root  operator   0xac May 23 20:36 /dev/usb/3.4.0
crw-------  1 root  operator   0xaf May 23 20:36 /dev/usb/3.4.1
crw-------  1 root  operator   0xb2 May 23 20:36 /dev/usb/3.4.2
crw-------  1 root  operator  0x1ab May 23 20:36 /dev/usb/3.4.3

2023-05-22: this board is v1.2a. There is a pull request #61 which notes that GPIO18 and 19 is swapped on the silkscreen.

2023-05-23: I created this page.

2023-05-22: I received the package from Mouser.

2023-05-16: the order was shipped.

2023-05-15: I ordered a ESP32-C3-DevKit-RUST-1 devkit (356-ESP32C3DVKTRUST1) from Mouser (with other items). Price was NOK 219.11.