2019.11.19 Touch screen hardware revision, the second version releases firmware, version number: V1.02.xx

Files: DP200_LCD_V1.02.xx.bin (CRC32: 74581524)
?????? DP200_MB_V1.2.hex (CRC32: 4997859B)
Main repairs:
Screen:

1. There is a bug in the calibration interfacethe completion prompt appears when you click the center continuously, but you cannot click.
2. There is a design mistake in model zooming, the initial version is designed as digital zooming in equal proportions, unreasonable,  correct it to the model zooming in equal proportions.
3. Remove the system information (remove temperature, CPU usage, etc.) during the slicing process. When the slicing process is stuck, it is easy for the customer to create the illusion that the control board is not working.
control board:
1. Firmware update BUG on the STM32 control board (add "Z_move_comp \ r \ n" to the commands G0, G1, G28)


Instructions for use:


1. Use ST-LINK to burn first,boot LCDBoot_V1.2.hex and firmware DP200_LCD_V1.02.xx.hex into STM32F103 chip;
2. Copy the system folder to the SD card, first disconnect the screen power, insert the SD card and then power on again,burning prompt text will appear on the screen, and burn the picture to Norflash on the screen control board. After the burning is finished, it will prompt "Update completed. Please remove the SD card and restart the printer \ r \ n", indicating that the burning is successful;
3. Unplug the SD card to update the screen firmware and picture library.

Note:
1. DP200_LCD_V1.02.xx.bin and config.txt "are the upgrade files,At the same time after copying to the SD card, insert it into the SD card slot of the screen, wait for a while after power-on to complete the upgrade.
2. The SD card is only used for upgrading, and can be removed after the upgrade is completed;
3. If there are error prompts such as "Write flash failed \ r \ n" or "Failed to load font data \ r \ n" during the upgrade process, you need to check whether the firmware version is consistent with the picture version and whether the SD card is loose;