II. Description of the demand for USB flash drives

1. Only one partition, partition format fat32.
2. Do not store important files on the USB flash drive,
3. Create a new folder STONEunder the directory of the USB drive to store the firmware and project files to be upgraded.

II, the user resource file upgrade

(A) Traditional renewal methods

1. Create\STONE\bin. bin folder to store the firmware stoneHMI (named fixed), as follows.
2. In the power-on state, the K600 dipswitch on the motherboard to the host side, as shown below.
3. Insert the prepared u disk for a period of time, the reset button next to the LED light will have a blue light flashing
4. Wait for 5-10s after the LED blinks to end, send the command to restart in the serial port, and unplug the U disk while the device restarts. (If there is no serial port connected, you can use the reset button. But please try to use the restart method of sending commands in the serial port.)(B) The way the screen prompts are updated
   1. Create \STONE\bin,bin folder to store the firmware stoneHMI.bin (named fixed), as follows. Create \STONE\project, project folder to store the project default (the project compiled by the upper machine), as follows.
   1. In the boot state will be the motherboard K600 dipswitch to the host side, insert the prepared u disk as follows.
   2. The screen will indicate the update progress, you can update the firmware or project separately, or together.When updating together, update the firmware first, and then update the project, there will be a corresponding prompt on the screen, follow the instructions to operate, see the following figure.