Flash Firmware Flashing and Erasing
From Waveshare Wiki
When the device has poor program operation or unknown errors, Flash Firmware Flashing and Erasing can be used as a solution. Flashing can update the tested firmware code for the device to return the device to normal; Erasing can remove the remnants of errors from the device and create conditions for new programs to be written. With the help of Flash Firmware Flashing and Erasing, ensure that the device can run stably.
Flash Firmware Flashing
The following is an example of flashing the ESP32-S3-Touch-LCD-2.8 bin file. If you need to flash other bin files, the operation steps are similar.
- Unzip the software resource package ( ESP32 Firmware flashing tool_3.9.7)
- Open the flash_download_tool_3.9.7.exe software, select according to the MCU and interface of the development board, for example:
ESP32-S3andUSB(USB is selected for most devices, depending on the hardware design of the product)
- Parameter setting
①.Select the COM port that corresponds to the development board
②.Choose BAUD as the highest 1,152,000
③.Click ... to choose the bin file provided by Waveshare, manually input the download address 0x0, and check the box on the far left
④.Start flashing
- Flashing completed (the flashing process will take some time, please be patient)
If you are in the "waiting for power-up synchronization" situation, you need to press and hold "Boot" to power on again, and enter the download mode to solve the problem
Flash Firmware Erasing
Flash erasing is performed independently. Because there has been a situation where the direct erasing has not erased completely, the method of "flashing first and then erasing" can avoid the incomplete erasing to a certain extent.
- Unzip the software resource package ( ESP32 Firmware flashing tool_3.9.7)
- Open the flash_download_tool_3.9.7.exe software, select according to the MCU and interface of the development board, for example:
ESP32-S3andUSB(USB is selected for most devices, depending on the hardware design of the product)
- Select the port number of the device, click START (do not select any bin files)
- Wait for the flashing to complete, then click ERASE
- Wait for the erasing to complete
