I have an EMX module with 4.3 SDK on a custom board that worked for a while on a customer site, but the display would go blank (black) randomly and the only way to bring it to life was to cycle power.
I received the board today and it doesn’t boot up. When I connect to it with COM port and say run ®it says Bad Firmware.
This board was tested before shipping to customer and as I said was somewhat working. My question is that what can cause the Tiny Bootloader to corrupt?
I reflashed ghiloader and it is still giving bad firmware error. This is the message I see in Tera Term:
GHI Electronics, LLC
EMX™ loader Rev 1.02
Bad firmware detected…try to reload the firmware
Open File/Transfer/XMODEM/Send/Loader.ghi (from GHI 4.3 SDK folder)and option 1K
After the file is transferred I receive a transfer was successful message, but when recycle power I get the bad firmware message.