Error: espflash::connection_failed (ESP32 + ESP-Prog + JTAG)

[systec-ms]

Good day, I got an ESP32 D1 MINI, which I can program via espflash over the serial (micro-usb).
Additionally, I can flash the esp blinky example via the VSCode extension over the ESP-Prog JTAG connection (⚡️ Flashed Successfully (JTag)).

However, if I try to flash my rust code via espflash over the EPS-Prog JTAG connection, I run into Error: espflash::connection_failed.

     Running `espflash flash --monitor target/xtensa-esp32-espidf/debug/blinky`
[2023-07-24T14:45:47Z INFO ] Detected 3 serial ports
[2023-07-24T14:45:47Z INFO ] Ports which match a known common dev board are highlighted
[2023-07-24T14:45:47Z INFO ] Please select a port
✔ Remember this serial port for future use? · no
[2023-07-24T14:45:50Z INFO ] Serial port: '/dev/ttyUSB0'
[2023-07-24T14:45:50Z INFO ] Connecting...
[2023-07-24T14:45:51Z INFO ] Unable to connect, retrying with extra delay...
[2023-07-24T14:45:52Z INFO ] Unable to connect, retrying with default delay...
[2023-07-24T14:45:53Z INFO ] Unable to connect, retrying with extra delay...
[2023-07-24T14:45:54Z INFO ] Unable to connect, retrying with default delay...
[2023-07-24T14:45:54Z INFO ] Unable to connect, retrying with extra delay...
[2023-07-24T14:45:56Z INFO ] Unable to connect, retrying with default delay...
[2023-07-24T14:45:56Z INFO ] Unable to connect, retrying with extra delay...
Error: espflash::connection_failed

I also tried #387 as mentioned by https://github.com/esp-rs/espflash/issues/394using
cargo install --git https://github.com/AVee/espflash --branch add_unix_tight_reset espflash with the same result.

    Finished dev [optimized + debuginfo] target(s) in 31.24s
     Running `espflash flash --monitor target/xtensa-esp32-espidf/debug/blinky`
[2023-07-24T14:32:58Z INFO ] 🚀 A new version of espflash is available: v2.0.1
[2023-07-24T14:32:58Z INFO ] Detected 2 serial ports
[2023-07-24T14:32:58Z INFO ] Ports which match a known common dev board are highlighted
[2023-07-24T14:32:58Z INFO ] Please select a port
✔ Remember this serial port for future use? · no
[2023-07-24T14:33:03Z INFO ] Serial port: '/dev/ttyUSB1'
[2023-07-24T14:33:03Z INFO ] Connecting...
[2023-07-24T14:33:03Z INFO ] Attempting UnixTight reset with default delay...
[2023-07-24T14:33:03Z INFO ] Attempting Classic reset with default delay...
[2023-07-24T14:33:04Z INFO ] Attempting UnixTight reset with extra delay...
[2023-07-24T14:33:05Z INFO ] Attempting Classic reset with extra delay...
[2023-07-24T14:33:06Z INFO ] Attempting UnixTight reset with default delay...
[2023-07-24T14:33:07Z INFO ] Attempting Classic reset with default delay...
[2023-07-24T14:33:08Z INFO ] Attempting UnixTight reset with extra delay...
[2023-07-24T14:33:09Z INFO ] Attempting Classic reset with extra delay...
[2023-07-24T14:33:10Z INFO ] Attempting UnixTight reset with default delay...
[2023-07-24T14:33:11Z INFO ] Attempting Classic reset with default delay...
[2023-07-24T14:33:11Z INFO ] Attempting UnixTight reset with extra delay...
[2023-07-24T14:33:12Z INFO ] Attempting Classic reset with extra delay...
[2023-07-24T14:33:14Z INFO ] Attempting UnixTight reset with default delay...
[2023-07-24T14:33:14Z INFO ] Attempting Classic reset with default delay...
Error: espflash::connection_failed

  × Error while connecting to device
  ╰─▶ Failed to connect to the device
  help: Ensure that the device is connected and the reset and boot pins are not being held down

I would appreciate any help, thanks in advance.

[systec-ms]

Could it be that it is not possible to flash Xtensa chips via espflash and jtag (#23)?

If so, how do I extract the bootloader.bin, partition-table.bin and binary.bin to flash it via openocd?

[systec-ms]

The following works for me:

Flash via ESP-PROG (JTAG)

Erase

openocd-esp32openocd -f /usr/share/openocd-esp32/scripts/interface/ftdi/esp32_devkitj_v1.cfg -f /usr/share/openocd-esp32/scripts/target/esp32.cfg -c "init; reset halt; flash erase_address 0x1000 16773120; exit"

Flash Bootloader

Use fd bootloader.bin --no-ignore to find bootloader.bin location (build by esp-idf-sys).
Typical locations are (note esp-rs/esp-idf-sys#97):

target/xtensa-esp32-espidf/debug/build/esp-idf-sys-5088a6f49af329e1/out/build/bootloader/bootloader.bin
target/xtensa-esp32-espidf/release/build/esp-idf-sys-0f6f63297e12c38d/out/build/bootloader/bootloader.bin

openocd-esp32openocd -f /usr/share/openocd-esp32/scripts/interface/ftdi/esp32_devkitj_v1.cfg -f /usr/share/openocd-esp32/scripts/target/esp32.cfg -c "program bootloader.bin 0x1000; exit"

Flash Partition Table

Use fd partition-table.bin --no-ignore to find partition-table.bin or use espflash partition-table --to-binary to export the partition-table binary.

Typical locations are (note esp-rs/esp-idf-sys#97):

target/xtensa-esp32-espidf/debug/build/esp-idf-sys-5088a6f49af329e1/out/build/partition_table/partition-table.bin
target/xtensa-esp32-espidf/release/build/esp-idf-sys-0f6f63297e12c38d/out/build/partition_table/partition-table.bin

Export binary:

espflash partition-table --to-binary --output partition-table.bin .embuild/espressif/esp-idf/release-v4.4/components/partition_table/partitions_singleapp.csv

Flash binary:

openocd-esp32openocd -f /usr/share/openocd-esp32/scripts/interface/ftdi/esp32_devkitj_v1.cfg -f /usr/share/openocd-esp32/scripts/target/esp32.cfg -c "program partition-table.bin 0x8000; exit"

Flash Application

Export binary (change /debug/ to /release/):

espflash save-image --chip esp32 target/xtensa-esp32-espidf/release/app app.bin

Flash binary:

openocd-esp32openocd -f /usr/share/openocd-esp32/scripts/interface/ftdi/esp32_devkitj_v1.cfg -f /usr/share/openocd-esp32/scripts/target/esp32.cfg -c "program app.bin 0x10000 reset exit"

Should be verify reset exit but verify is currently unsupported

[SergioGasquez]

Hi! Sorry for the late reply, Can try using #487 and see if it solves the issue? You should be able to flash Xtensa via JTAG

[SergioGasquez]

Hi! Would you mind verifying if the issue still persists with the changes on main?

cargo install espflash cargo-espflash --git https://github.com/esp-rs/espflash

[systec-ms]

Sorry for the late replay, sadly no luck:

❯ espflash -V
espflash 3.0.0-dev

❯ espflash board-info
[2023-11-16T10:11:46Z INFO ] Detected 2 serial ports
[2023-11-16T10:11:46Z INFO ] Ports which match a known common dev board are highlighted
[2023-11-16T10:11:46Z INFO ] Please select a port
✔ Remember this serial port for future use? · no
[2023-11-16T10:11:56Z INFO ] Serial port: '/dev/ttyUSB0'
[2023-11-16T10:11:56Z INFO ] Connecting...
Error: espflash::connection_failed

  × Error while connecting to device
  ╰─▶ Failed to connect to the device
  help: Ensure that the device is connected and the reset and boot pins are not being held down


❯ espflash board-info
[2023-11-16T10:12:05Z INFO ] Detected 2 serial ports
[2023-11-16T10:12:05Z INFO ] Ports which match a known common dev board are highlighted
[2023-11-16T10:12:05Z INFO ] Please select a port
✔ Remember this serial port for future use? · no
[2023-11-16T10:12:07Z INFO ] Serial port: '/dev/ttyUSB1'
[2023-11-16T10:12:07Z INFO ] Connecting...
Error: espflash::connection_failed

  × Error while connecting to device
  ╰─▶ Failed to connect to the device
  help: Ensure that the device is connected and the reset and boot pins are not being held down

Same result with espflash flash --monitor target/xtensa-esp32-espidf/release/blinky.
Flashing still works with:

openocd-esp32openocd -f /usr/share/openocd-esp32/scripts/interface/ftdi/esp32_devkitj_v1.cfg -f /usr/share/openocd-esp32/scripts/target/esp32.cfg -c "program target/app.bin 0x10000; reset; exit"

So unfortunately, the problem still exists.

[SergioGasquez]

Have you tried to flash your application with esptool?

[SergioGasquez]

#521 may fix this issue, mind testing again with main?

cargo install espflash cargo-espflash --git https://github.com/esp-rs/espflash

Sorry for the debugging procedure, but since I can't reproduce the issue, I would like to know if it's still there

[systec-ms]

Sadly, same result as before.

[SergioGasquez]

Have you tried to flash your application with esptool?

Hi! By any chance, did you try esptool?