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esp-rs / espflash

Serial flasher utility for Espressif SoCs and modules based on esptool.py
Apache License 2.0
455 stars 110 forks source link

Read-only mode when monitoring? #601

Closed hongquan closed 4 months ago

hongquan commented 4 months ago

I'm using espflash v2.1.0 and I found that when I do espflash monitor, it acquires exclusive access on the serial port. I want to use ESP32's UART0 to read command from PC, it means that I want the serial port to be writable for other program. Could you add one mode to espflash monitor so that it only need read access on the port?

SergioGasquez commented 4 months ago

Hi! Have you tried something like https://github.com/esp-rs/esp-hal/blob/main/esp32-hal/examples/serial_interrupts.rs? Does that fulfill your requirements?

hongquan commented 4 months ago

Hi @SergioGasquez , I don't understand use case of that example, so it may not be what I'm looking for.

What I need is that espflash monitor command don't take exclusive access on /dev/ttyUSB0, so I can use another program, like Python pyserial to write some command to my ESP32 board's UART0.

On another hand, I want to use ESP32 UART0 both for flashing, monitor and receiving command from PC.

MabezDev commented 4 months ago

@hongquan Thanks for the request! I don't think this is something we want to handle in espflash itself. Feel free to use espflash as a library and manage your own monitor which doesn't take full control of the port.

hongquan commented 4 months ago

Thank you, @MabezDev . I respect your vision of espflash. If the feature cannot be added to espflash, I will use pyserial's miniterm to monitor the board.