Random character printed via UART on TEBF0818-02A

[Marekk]

Hi,

I got problem with UART on TEBF0818-02A, one with green dot for module JTAG.
Speed is 115200 and even when board is off I got random characters printed via UART.
JTAG work and I can program FPGA.
Could you let me know whether is firmware or hardware fault?
Can I swap XMOD modules on the board to one without green dot?

Best regards
Marek

[Antti Lukats]

handled by email

[Antti Lukats]

random characters may appera when the level shifting CPLD IO bank on TE0790 is not powered. This is controlled with dip.3