Error: RX Buffer can't be resized when Serial is already running.

spali commented 1 year ago

The problem

If watch the logs over serial during boot:

esphome.exe logs --device COM4 .\core2-test.yaml

I get the error bellow.

Which version of ESPHome has the issue?

2022.9.3

What type of installation are you using?

pip

Which version of Home Assistant has the issue?

No response

What platform are you using?

ESP32

Board

m5stack-core-esp32

Component causing the issue

uart

Example YAML snippet

esp32:
  board: m5stack-core-esp32
  framework:
    type: arduino
    version: 2.0.5
    platform_version: 5.2.0

Anything in the logs that might be useful for us?

[22:54:20]configsip: 0, SPIWP:0xee
[22:54:20]clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
[22:54:20]mode:DIO, clock div:1
[22:54:20]load:0x3fff0030,len:1344
[22:54:20]load:0x40078000,len:13864
[22:54:20]load:0x40080400,len:3608
[22:54:20]entry 0x400805f0
[22:54:21][I][logger:243]: Log initialized
[22:54:21][C][ota:465]: There have been 1 suspected unsuccessful boot attempts.
[22:54:21][D][esp32.preferences:113]: Saving 1 preferences to flash...
[22:54:21][D][esp32.preferences:142]: Saving 1 preferences to flash: 0 cached, 1 written, 0 failed
[22:54:21][I][app:029]: Running through setup()...
[22:54:21][I][i2c.arduino:161]: Performing I2C bus recovery
[22:54:21][C][spi:023]: Setting up SPI bus...
[22:54:21][C][uart.arduino_esp32:077]: Setting up UART...
[22:54:21][    75][E][HardwareSerial.cpp:525] setRxBufferSize(): RX Buffer can't be resized when Serial is already running.
[22:54:21]

Additional information

This didn't happen before I updated framework and platform (used to use default before):

    version: 2.0.5
    platform_version: 5.2.0

I assume this line is the caller for the error: https://github.com/esphome/esphome/blob/80d03a631e3bccc055d76cc642a6f8993f141df4/esphome/components/uart/uart_component_esp32_arduino.cpp#L103 esphome/esphome/blob/80d03a631e3bccc055d76cc642a6f8993f141df4/esphome/components/uart/uart_component_esp32_arduino.cpp#L103 And Here the code that throws the error: https://github.com/espressif/arduino-esp32/blob/a5f03a86512b270be1080d7e7cb82e4fd71c9a1a/cores/esp32/HardwareSerial.cpp#L525

I'm not an expert, but looks like a switch of the begin and setRxBufferSize call could solve this?

github-actions[bot] commented 1 year ago

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

formatBCE commented 1 year ago

Not stale

kingozone commented 1 year ago

Not stale

playya commented 1 year ago

I had the same issue, but it's already fixec in dev: https://github.com/esphome/esphome/commit/9922eb83e2851f23992d021ae59adba5d56d73d7 Double checking if this works now ...

maxsarges commented 1 year ago

Hi,

i have checked newest version of ESPHome and the Problem still exists.

krasa commented 10 months ago

same here, changing pins helped:

uart:
  - id: modbus_uart
    tx_pin: TX
    rx_pin: RX

->

uart:
  - id: modbus_uart
    tx_pin: 26
    rx_pin: 27

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