"Failed to connect to the device" on Adafruit QT PY ESP32-S2

[dylif]

Info:

• OS: Arch Linux 6.10.5-arch1-1
• Board: Adafruit QT PY ESP32-S2
• Toolchains: esp-13.2.0_20230928, xtensa-esp32-elf-clang
• ESP-IDF Version: 5.2.2

I've put the board into boot loader mode, and I can communicate with it using esptool:

Serial port /dev/ttyACM0
Connecting...
Detecting chip type... Unsupported detection protocol, switching and trying again...
Detecting chip type... ESP32-S2
Chip is ESP32-S2FNR2 (revision v0.0)
Features: WiFi, Embedded Flash 4MB, Embedded PSRAM 2MB, ADC and temperature sensor calibration in BLK2 of efuse V1
Crystal is 40MHz
MAC: 70:04:1d:f2:f6:d6
Uploading stub...
Running stub...
Stub running...
Manufacturer: 20
Device: 4016
Detected flash size: 4MB
Flash type set in eFuse: quad (4 data lines)
Staying in bootloader.

When I run espflash flash target/xtensa-esp32s2-espidf/debug/humid --monitor, I get the following error:

[2024-08-16T02:59:47Z INFO ] Serial port: '/dev/ttyACM0'
[2024-08-16T02:59:47Z 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

Please let me know if you need any further information.

[GamePad64]

I have the same issue on 3.1.0 and 3.1.1 on my custom-designed ESP32-S2 board. Works perfectly with espflash 2.x and esptool.py

[MabezDev]

Does it work if you pass --no-stub?

[dylif]

Does it work if you pass --no-stub?

Unfortunately, this does not work.

I have the same issue on 3.1.0 and 3.1.1 on my custom-designed ESP32-S2 board. Works perfectly with espflash 2.x and esptool.py

I just tried using espflash 2.1.0 and it works! Not sure what changed between the versions. Leaving the ticket open as this seems like a bug.

[superkooks]

I'm having the same issue with an ESP32 on a custom board. I have bisected the issue and found 2f3d110 is the first bad commit. Interestingly, strace says that espflash doesn't even read or write to the serial port. I can confirm that it doesn't write anything as the LEDs on my UART adapter don't flash.

[superkooks]

I believe my case is actually a separate issue, but I think setting the flags --before no-reset-no-sync -c esp32s2 might help in your case.

[FreeMasen]

I am having the same problem. Here are some additional details to hopefully point us all in the right direction

Successful Arduino Build->Upload

```shell --chip esp32s2 \ --port "/dev/cu.usbmodem01" \ --baud 921600 \ --before default_reset \ --after no-reset \ write_flash \ -z \ --flash_mode keep \ --flash_freq keep \ --flash_size keep \ 0x1000 "/esp-test2.ino.bootloader.bin" \ 0x8000 "/esp-test2.ino.partitions.bin" \ 0xe000 "Arduino15/packages/esp32/hardware/esp32/3.0.4/tools/partitions/boot_app0.bin" \ 0x10000 "/esp-test2.ino.bin" \ 0x2d0000 "/Library/Arduino15/packages/esp32/hardware/esp32/3.0.4/variants/adafruit_qtpy_esp32s2/tinyuf2.bin" esptool.py v4.6 ```

successful trace logs from espflash 2.1.0

``` RUST_LOG=trace cargo run --release Finished `release` profile [optimized] target(s) in 0.08s Running `espflash flash --monitor target/xtensa-esp32s2-espidf/release/esp-test` [2024-08-26T22:58:39Z DEBUG] Flash( FlashArgs { connect_args: ConnectArgs { baud: None, port: None, no_stub: false, }, flash_config_args: FlashConfigArgs { flash_freq: None, flash_mode: None, flash_size: None, }, flash_args: FlashArgs { bootloader: None, erase_parts: None, erase_data_parts: None, format: None, monitor: true, monitor_baud: None, partition_table: None, ram: false, }, image: "target/xtensa-esp32s2-espidf/release/esp-test", }, ) [2024-08-26T22:58:39Z DEBUG] connecting to crates.io:443 at 54.230.202.35:443 [2024-08-26T22:58:39Z DEBUG] No cached session for DnsName("crates.io") [2024-08-26T22:58:39Z DEBUG] Not resuming any session [2024-08-26T22:58:39Z TRACE] Sending ClientHello Message { version: TLSv1_0, payload: Handshake { parsed: HandshakeMessagePayload { typ: ClientHello, payload: ClientHello( ClientHelloPayload { client_version: TLSv1_2, random: 899eb091190d431e0c643cc0b1f7fea44f6cd79e98868018ec15136885723b84, session_id: 4355aacac9e47dfc73fc4953423ba57f325dfbad1c37593b3935b59854974d60, cipher_suites: [ TLS13_AES_256_GCM_SHA384, TLS13_AES_128_GCM_SHA256, TLS13_CHACHA20_POLY1305_SHA256, TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384, TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256, TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256, TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384, TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256, TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256, TLS_EMPTY_RENEGOTIATION_INFO_SCSV, ], compression_methods: [ Null, ], extensions: [ SupportedVersions( [ TLSv1_3, TLSv1_2, ], ), KeyShare( [ KeyShareEntry { group: X25519, payload: 7ebdc0f0413c85bc3c12995a36541b16e65863ac40421b5fe44ddb3a7dad9324, }, ], ), SignatureAlgorithms( [ ECDSA_NISTP384_SHA384, ECDSA_NISTP256_SHA256, ED25519, RSA_PSS_SHA512, RSA_PSS_SHA384, RSA_PSS_SHA256, RSA_PKCS1_SHA512, RSA_PKCS1_SHA384, RSA_PKCS1_SHA256, ], ), PresharedKeyModes( [ PSK_DHE_KE, ], ), CertificateStatusRequest( Ocsp( OcspCertificateStatusRequest { responder_ids: [], extensions: , }, ), ), ExtendedMasterSecretRequest, NamedGroups( [ X25519, secp256r1, secp384r1, ], ), ServerName( [ ServerName { typ: HostName, payload: HostName( DnsName( "crates.io", ), ), }, ], ), EcPointFormats( [ Uncompressed, ], ), SessionTicket( Request, ), ], }, ), }, encoded: 010000e30303899eb091190d431e0c643cc0b1f7fea44f6cd79e98868018ec15136885723b84204355aacac9e47dfc73fc4953423ba57f325dfbad1c37593b3935b59854974d600014130213011303c02cc02bcca9c030c02fcca800ff01000086002b00050403040303003300260024001d00207ebdc0f0413c85bc3c12995a36541b16e65863ac40421b5fe44ddb3a7dad9324000d00140012050304030807080608050804060105010401002d0002010100050005010000000000170000000a00080006001d001700180000000e000c0000096372617465732e696f000b0002010000230000, }, } [2024-08-26T22:58:39Z TRACE] We got ServerHello ServerHelloPayload { legacy_version: TLSv1_2, random: b945aa496636dd3699e144db8384dffc054769dc0bee333103448e057d53d998, session_id: 4355aacac9e47dfc73fc4953423ba57f325dfbad1c37593b3935b59854974d60, cipher_suite: TLS13_AES_128_GCM_SHA256, compression_method: Null, extensions: [ SupportedVersions( TLSv1_3, ), KeyShare( KeyShareEntry { group: X25519, payload: d37ba4cf41624429702f1e3ce95aee3e0c137dc70c2743c583e6f624f790a55d, }, ), ], } [2024-08-26T22:58:39Z DEBUG] Using ciphersuite TLS13_AES_128_GCM_SHA256 [2024-08-26T22:58:39Z DEBUG] Not resuming [2024-08-26T22:58:39Z TRACE] EarlyData rejected [2024-08-26T22:58:39Z TRACE] Dropping CCS [2024-08-26T22:58:39Z DEBUG] TLS1.3 encrypted extensions: [ServerNameAck] [2024-08-26T22:58:39Z DEBUG] ALPN protocol is None [2024-08-26T22:58:39Z TRACE] Server cert is 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CertificateDer(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), CertificateDer(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)]) [2024-08-26T22:58:39Z TRACE] Unvalidated OCSP response: [48, 130, 1, 211, 10, 1, 0, 160, 130, 1, 204, 48, 130, 1, 200, 6, 9, 43, 6, 1, 5, 5, 7, 48, 1, 1, 4, 130, 1, 185, 48, 130, 1, 181, 48, 129, 158, 162, 22, 4, 20, 192, 49, 82, 205, 90, 80, 195, 130, 124, 116, 113, 206, 203, 233, 156, 249, 122, 235, 130, 226, 24, 15, 50, 48, 50, 52, 48, 56, 50, 54, 49, 48, 53, 52, 50, 56, 90, 48, 115, 48, 113, 48, 73, 48, 9, 6, 5, 43, 14, 3, 2, 26, 5, 0, 4, 20, 102, 109, 11, 112, 156, 137, 228, 190, 75, 235, 236, 19, 69, 71, 228, 182, 149, 54, 15, 140, 4, 20, 192, 49, 82, 205, 90, 80, 195, 130, 124, 116, 113, 206, 203, 233, 156, 249, 122, 235, 130, 226, 2, 16, 4, 18, 175, 18, 0, 86, 23, 1, 52, 137, 47, 137, 137, 214, 213, 174, 128, 0, 24, 15, 50, 48, 50, 52, 48, 56, 50, 54, 49, 48, 51, 57, 48, 50, 90, 160, 17, 24, 15, 50, 48, 50, 52, 48, 57, 48, 50, 48, 57, 51, 57, 48, 50, 90, 48, 13, 6, 9, 42, 134, 72, 134, 247, 13, 1, 1, 11, 5, 0, 3, 130, 1, 1, 0, 120, 98, 229, 204, 117, 47, 73, 30, 170, 83, 222, 119, 118, 234, 227, 79, 223, 38, 213, 108, 128, 145, 176, 236, 185, 151, 79, 169, 237, 134, 34, 82, 225, 59, 121, 247, 70, 162, 222, 106, 226, 78, 119, 220, 253, 102, 202, 174, 246, 156, 83, 81, 176, 82, 46, 116, 82, 237, 221, 145, 68, 235, 39, 195, 159, 147, 26, 189, 124, 184, 207, 6, 187, 114, 85, 177, 254, 175, 123, 75, 131, 171, 168, 24, 192, 150, 3, 249, 17, 144, 64, 243, 82, 151, 40, 252, 64, 58, 88, 35, 112, 47, 195, 6, 225, 59, 192, 94, 193, 236, 59, 159, 252, 34, 120, 130, 253, 13, 93, 221, 156, 63, 217, 139, 69, 132, 60, 114, 59, 195, 123, 62, 86, 179, 12, 151, 131, 253, 211, 163, 254, 37, 56, 238, 238, 38, 252, 158, 169, 22, 29, 13, 63, 1, 239, 170, 28, 183, 167, 254, 15, 190, 188, 115, 219, 47, 214, 58, 1, 25, 233, 115, 181, 155, 239, 154, 207, 185, 253, 69, 163, 71, 162, 149, 152, 8, 87, 231, 166, 182, 52, 177, 196, 193, 127, 239, 239, 22, 93, 129, 217, 153, 42, 134, 209, 111, 180, 122, 32, 141, 236, 200, 239, 223, 230, 220, 19, 64, 109, 18, 111, 171, 103, 74, 42, 207, 129, 46, 148, 89, 163, 249, 26, 64, 167, 26, 148, 46, 133, 163, 198, 57, 168, 87, 153, 9, 197, 71, 163, 245, 45, 170, 153, 12, 187, 86] [2024-08-26T22:58:39Z DEBUG] created stream: Stream(RustlsStream) [2024-08-26T22:58:39Z DEBUG] sending request GET https://crates.io/api/v1/crates/espflash/versions [2024-08-26T22:58:39Z DEBUG] writing prelude: GET /api/v1/crates/espflash/versions HTTP/1.1 Host: crates.io User-Agent: ureq/2.10.1 Accept: */* accept-encoding: gzip [2024-08-26T22:58:39Z DEBUG] Chunked body in response [2024-08-26T22:58:39Z DEBUG] response 200 to GET https://crates.io/api/v1/crates/espflash/versions [2024-08-26T22:58:39Z DEBUG] dropping stream: Stream(RustlsStream) [2024-08-26T22:58:39Z INFO ] 🚀 A new version of espflash is available: v3.1.1 [2024-08-26T22:58:39Z INFO ] Detected 4 serial ports [2024-08-26T22:58:39Z INFO ] Ports which match a known common dev board are highlighted [2024-08-26T22:58:39Z INFO ] Please select a port [2024-08-26T22:58:42Z INFO ] Serial port: '/dev/cu.usbmodem01' [2024-08-26T22:58:42Z INFO ] Connecting... [2024-08-26T22:59:13Z INFO ] Using flash stub [2024-08-26T22:59:13Z DEBUG] Loading flash stub for chip: Esp32s2 [2024-08-26T22:59:13Z DEBUG] Write 4336 byte stub text [2024-08-26T22:59:13Z DEBUG] Write 160 byte stub data [2024-08-26T22:59:13Z DEBUG] Finish stub write [2024-08-26T22:59:13Z DEBUG] Stub written! [2024-08-26T22:59:13Z DEBUG] Re-detected chip: Esp32s2 [2024-08-26T22:59:13Z DEBUG] Attempting flash enable with: SpiAttachParams { clk: 0, q: 0, d: 0, hd: 0, cs: 0 } [2024-08-26T22:59:13Z DEBUG] Flash detect OK! Chip type: esp32s2 (revision v0.0) Crystal frequency: 40MHz Flash size: 4MB Features: WiFi, Embedded Flash 4MB, Embedded PSRAM 2MB, ADC and temperature sensor calibration in BLK2 of efuse V1 MAC address: 84:f7:03:f6:9a:c8 App/part. size: 385,984/4,128,768 bytes, 9.35% [00:00:00] [========================================] 7/7 0x1000 [00:00:00] [========================================] 1/1 0x8000 [00:00:03] [========================================] 110/110 0x10000 [2024-08-26T22:59:17Z INFO ] Flashing has completed! Commands: CTRL+R Reset chip CTRL+C Exit [2024-08-26T22:59:23Z TRACE] registering event source with poller: token=Token(0), interests=READABLE2024-08-26T22:59:23Z TRACE] registering event source with poller: token=Token(1), interests=READABLE ```

3.1.1 trace logs

``` ➜ esp-test git:(master) ✗ RUST_LOG=trace cargo run --release Finished `release` profile [optimized] target(s) in 0.16s Running `espflash flash --monitor target/xtensa-esp32s2-espidf/release/esp-test` [2024-08-27T02:47:08Z DEBUG] Flash( FlashArgs { connect_args: ConnectArgs { after: HardReset, baud: None, before: DefaultReset, chip: None, confirm_port: false, list_all_ports: false, no_stub: false, port: None, }, flash_config_args: FlashConfigArgs { flash_freq: None, flash_mode: None, flash_size: None, }, flash_args: FlashArgs { erase_parts: None, erase_data_parts: None, log_format: Serial, monitor: true, monitor_baud: None, ram: false, no_verify: false, no_skip: false, image: ImageArgs { bootloader: None, partition_table: None, partition_table_offset: None, target_app_partition: None, min_chip_rev: 0, }, }, image: "target/xtensa-esp32s2-espidf/release/esp-test", }, ) [2024-08-27T02:47:09Z DEBUG] connecting to crates.io:443 at 54.230.202.82:443 [2024-08-27T02:47:09Z DEBUG] No cached session for DnsName("crates.io") [2024-08-27T02:47:09Z DEBUG] Not resuming any session [2024-08-27T02:47:09Z TRACE] Sending ClientHello Message { version: TLSv1_0, payload: Handshake { parsed: HandshakeMessagePayload { typ: ClientHello, payload: ClientHello( ClientHelloPayload { client_version: TLSv1_2, random: ae11f53009ef876ddc0397bcdaeba3a9b26e3b96718843be1158d6f26db3b064, session_id: a55e1070692b7d060baa76454a30e0e95a016cd955eaf883255ddfbc8bc91076, cipher_suites: [ TLS13_AES_256_GCM_SHA384, TLS13_AES_128_GCM_SHA256, TLS13_CHACHA20_POLY1305_SHA256, TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384, TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256, TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256, TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384, TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256, TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256, TLS_EMPTY_RENEGOTIATION_INFO_SCSV, ], compression_methods: [ Null, ], extensions: [ ExtendedMasterSecretRequest, SessionTicket( Request, ), PresharedKeyModes( [ PSK_DHE_KE, ], ), SupportedVersions( [ TLSv1_3, TLSv1_2, ], ), KeyShare( [ KeyShareEntry { group: X25519, payload: 1c2277eb18bdc1d977f421f46b9a12f237895c2016d17244ce43021937b0ee4c, }, ], ), ServerName( [ ServerName { typ: HostName, payload: HostName( DnsName( "crates.io", ), ), }, ], ), SignatureAlgorithms( [ ECDSA_NISTP384_SHA384, ECDSA_NISTP256_SHA256, ED25519, RSA_PSS_SHA512, RSA_PSS_SHA384, RSA_PSS_SHA256, RSA_PKCS1_SHA512, RSA_PKCS1_SHA384, RSA_PKCS1_SHA256, ], ), EcPointFormats( [ Uncompressed, ], ), NamedGroups( [ X25519, secp256r1, secp384r1, ], ), CertificateStatusRequest( Ocsp( OcspCertificateStatusRequest { responder_ids: [], extensions: , }, ), ), ], }, ), }, encoded: 010000e30303ae11f53009ef876ddc0397bcdaeba3a9b26e3b96718843be1158d6f26db3b06420a55e1070692b7d060baa76454a30e0e95a016cd955eaf883255ddfbc8bc910760014130213011303c02cc02bcca9c030c02fcca800ff010000860017000000230000002d00020101002b00050403040303003300260024001d00201c2277eb18bdc1d977f421f46b9a12f237895c2016d17244ce43021937b0ee4c0000000e000c0000096372617465732e696f000d00140012050304030807080608050804060105010401000b00020100000a00080006001d00170018000500050100000000, }, } [2024-08-27T02:47:09Z TRACE] We got ServerHello ServerHelloPayload { legacy_version: TLSv1_2, random: 0731e0cf868e445caee0e5f77c101931b52d6d2b52e90c56c191828ef4d00365, session_id: a55e1070692b7d060baa76454a30e0e95a016cd955eaf883255ddfbc8bc91076, cipher_suite: TLS13_AES_128_GCM_SHA256, compression_method: Null, extensions: [ SupportedVersions( TLSv1_3, ), KeyShare( KeyShareEntry { group: X25519, payload: cbb51fbb5d6557c39386e6bef34a9f28c9f1b6b18f3b4552b649f9479ff2995f, }, ), ], } [2024-08-27T02:47:09Z DEBUG] Using ciphersuite TLS13_AES_128_GCM_SHA256 [2024-08-27T02:47:09Z DEBUG] Not resuming [2024-08-27T02:47:09Z TRACE] EarlyData rejected [2024-08-27T02:47:09Z TRACE] Dropping CCS [2024-08-27T02:47:09Z DEBUG] TLS1.3 encrypted extensions: [ServerNameAck] [2024-08-27T02:47:09Z DEBUG] ALPN protocol is None [2024-08-27T02:47:09Z TRACE] Server cert is CertificateChain([CertificateDer(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), 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CertificateDer(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), CertificateDer(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)]) [2024-08-27T02:47:09Z DEBUG] created stream: Stream(RustlsStream) [2024-08-27T02:47:09Z DEBUG] sending request GET https://crates.io/api/v1/crates/espflash/versions [2024-08-27T02:47:09Z DEBUG] writing prelude: GET /api/v1/crates/espflash/versions HTTP/1.1 Host: crates.io User-Agent: ureq/2.10.1 Accept: */* accept-encoding: gzip [2024-08-27T02:47:09Z DEBUG] Chunked body in response [2024-08-27T02:47:09Z DEBUG] response 200 to GET https://crates.io/api/v1/crates/espflash/versions [2024-08-27T02:47:09Z DEBUG] dropping stream: Stream(RustlsStream) [2024-08-27T02:47:09Z DEBUG] Config: Config { baudrate: None, bootloader: None, connection: Connection { serial: None, }, partition_table: None, usb_device: [ UsbDevice { vid: 9114, pid: 33041, }, UsbDevice { vid: 12346, pid: 2, }, ], flash: FlashSettings { mode: None, size: None, freq: None, }, save_path: "/Users/robertmasen/Library/Application Support/rs.esp.espflash/espflash.toml", } [2024-08-27T02:47:09Z INFO ] Detected 2 serial ports [2024-08-27T02:47:09Z INFO ] Ports which match a known common dev board are highlighted [2024-08-27T02:47:09Z INFO ] Please select a port [2024-08-27T02:47:11Z INFO ] Serial port: '/dev/cu.usbmodem01' [2024-08-27T02:47:11Z INFO ] Connecting... [2024-08-27T02:47:11Z DEBUG] Using UnixTight reset strategy with delay of 50ms [2024-08-27T02:47:13Z DEBUG] Failed to reset, error Connection( Serial( Error { kind: Io( Uncategorized, ), description: "Device not configured (os error 6)", }, ), ), retrying [2024-08-27T02:47:13Z DEBUG] Using UnixTight reset strategy with delay of 500ms [2024-08-27T02:47:13Z DEBUG] Failed to reset, error Connection( Serial( Error { kind: Io( Uncategorized, ), description: "Device not configured (os error 6)", }, ), ), retrying [2024-08-27T02:47:13Z DEBUG] Using Classic reset strategy with delay of 50ms [2024-08-27T02:47:13Z DEBUG] Failed to reset, error Connection( Serial( Error { kind: Unknown, description: "No such device or address", }, ), ), retrying [2024-08-27T02:47:13Z DEBUG] Using Classic reset strategy with delay of 500ms [2024-08-27T02:47:13Z DEBUG] Failed to reset, error Connection( Serial( Error { kind: Unknown, description: "No such device or address", }, ), ), retrying [2024-08-27T02:47:13Z DEBUG] Using UnixTight reset strategy with delay of 50ms [2024-08-27T02:47:13Z DEBUG] Failed to reset, error Connection( Serial( Error { kind: Io( Uncategorized, ), description: "Device not configured (os error 6)", }, ), ), retrying [2024-08-27T02:47:13Z DEBUG] Using UnixTight reset strategy with delay of 500ms [2024-08-27T02:47:13Z DEBUG] Failed to reset, error Connection( Serial( Error { kind: Io( Uncategorized, ), description: "Device not configured (os error 6)", }, ), ), retrying [2024-08-27T02:47:13Z DEBUG] Using Classic reset strategy with delay of 50ms [2024-08-27T02:47:13Z DEBUG] Failed to reset, error Connection( Serial( Error { kind: Unknown, description: "No such device or address", }, ), ), retrying 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 ➜ esp-test git:(master) ✗ ```

[FreeMasen]

Here are the logs every permutation I though would be worth trying

• before
  • default-reset
  • no-reset
  • no-reset-no-sync
  • usb-reset
• after
  • hard-reset
  • no-reset
  • no-reset-no-stub
• flash-mode
  • qio
  • qout
  • dio
  • dout

out.log

[sekwah41]

Having the same issue so if there is anything I can provide to help or test I will also be able to :)

Though having the same issue running on ubuntu in wsl2 as well as on mac.

[dylif]

I believe my case is actually a separate issue, but I think setting the flags --before no-reset-no-sync -c esp32s2 might help in your case.

I apologize for the late response. Unfortunately this does not work for me. I get a different error now. I have confirmed the device is in bootloader mode and the correct serial port is selected.

[2024-09-03T00:57:49Z WARN ] Pre-connection option 'NoResetNoSync' was selected. Connection may fail if the chip is not in bootloader or flasher stub mode.
[2024-09-03T00:57:49Z INFO ] Serial port: '/dev/ttyACM0'
[2024-09-03T00:57:49Z INFO ] Connecting...
Error: espflash::timeout

  × Error while connecting to device
  ╰─▶ Timeout while running ReadReg command