USB-UART
PRI_UART
is connected to FPGA, configuration depends on FPGA (usually 8N1 115200 baudrate)AUX_UART
is connected to FPGA, configuration depends on FPGA (this UART is usually routed to RTM through FPGA, usual configuration: 8N1 115200 baudrate)MMC_CONS_PROG
is connected to MMC, configuration is 8N1 115200 baudrate (again, can be changed by changing settings in MMC firmware)
USB-UART bridge
Usually on Windows 10 and Linux no additional drivers are needed for the USB-UART bridge (FT4232H). Please refer to the FTDI website in case of missing drivers in your system. Drivers allow the user to communicate with the USB interface via a standard PC serial emulation port (TTY).
These UART console appear usually as /dev/ttyUSB1
through /dev/ttyUSB3
on Linux if no other ttyUSB devices are connected (ttyUSB1
- PRI_UART
, ttyUSB2
- AUX_UART
, ttyUSB3
- MMC_CONS_PROG
). /dev/ttyUSB0
is in this case a JTAG connection, usually used by openocd. On Windows with correct drivers, FTDI usually appears as 4 consecutive COM ports. The latter 3 are PRI_UART
, AUX_UART
and MMC_CONS_PROG
.