UART Communication

Wiring

In order to build the UART communication cable, pins 3 ( ground- red wire ), 5 ( UART RX - Yellow Wire ), and 6 ( UART TX - blue wire ) are wired to their corresponding pins on the CP2102 converter module.

Modification of LMS2012.h

Since the source code used did not enable the UART interface by default, a few key definitions were modified to provide for the functionality.

//#define   DEBUG                         //!< When defined debug messages is output on standard I/O (d_uart is different)

#define   TERMINAL_ENABLED      1       //!< DEBUG terminal enabled (0 = disabled, 1 = enabled)
#define   DEBUG_UART            0       //!< UART used for debug (0 = port1, 1 = port2, ... 4 = none)

Above, TERMINAL_ENABLED was set to 1, and DEBUG_UART was set to 0 ( to utilize port 1 ). Enabling UART allows for boot up instructions to be monitored to discover where any issues may exist during boot up.