Hi All,
The USB was working fine because when i connect the computer the device shows up in command "lsusb" in ubuntu machine.
Later i tried the below options
1.When I long press the programming button , the device is not entering the programming state ,(no changes in LED1 and LED4 colour, nor the firmware folder pops out)
2. I thought it was the switch issue but tested the switch with multimeter , the switch it works fine.
Any idea to debug the same or how we could reset the entire board. (The Reset switch just reboots, any other ways)