mirror of
https://github.com/cesanta/mongoose.git
synced 2024-12-16 18:39:18 +08:00
42 lines
1.6 KiB
Markdown
42 lines
1.6 KiB
Markdown
# A UART to network bridge for ESP32
|
|
|
|
|
|
|
|
- See detailed tutorial at https://mongoose.ws/tutorials/esp32/uart-bridge/
|
|
|
|
## Flash pre-built firmware
|
|
|
|
You can flash a pre-built firmware to the ESP32 device using the following
|
|
instructions:
|
|
|
|
1. Connect your ESP32 device to the workstation. It should be accessible
|
|
via a serial port
|
|
2. Download and unzip ESP32 flashing tool from https://mongoose.ws/downloads/esputil.zip
|
|
3. Download a prebuilt firmware https://mongoose.ws/downloads/uart-bridge.hex into the unzipped directory
|
|
4. Start command prompt (or terminal on Mac/Linux). Run `cd
|
|
PATH/TO/esputil` to go into the unzipped `esputil/` directory. After that, run
|
|
the following command (change `COMPORT` to the board's serial port):
|
|
|
|
| OS | Command |
|
|
| ------- | ------- |
|
|
| Windows | <pre><code class="language-bash">.\windows\esputil -p COMPORT flash uart-bridge.hex</code></pre>|
|
|
| Linux | <pre><code class="language-bash">./linux/esputil -p COMPORT flash uart-bridge.hex</pre> |
|
|
| MacOS | <pre><code class="language-bash">./macos/esputil -p COMPORT flash uart-bridge.hex</code></pre> |
|
|
|
|
Next step is to monitor and follow the instructions.
|
|
|
|
```sh
|
|
esputil -p COMPORT monitor
|
|
```
|
|
|
|
Note: if monitor command shows constant restarts, the flash parameters
|
|
settings can be wrong. Reflash your device with `-fp ...` flash parameters
|
|
settings. For example, WROOM-32 based boards use `-fp 0x220`:
|
|
|
|
```sh
|
|
esputil -p COMPORT -fp 0x220 flash uart-bridge.hex
|
|
```
|
|
|
|
For more on possible options for flash parameters, see
|
|
https://github.com/cpq/esputil#flash-parameters
|