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MSP-EXP430FR5994: Expecting Echo

Mark Philip Felipe
Genius 10305 points
Part Number: MSP-EXP430FR5994

Hi Team, assisting a client with their inquiry. 

_

trying to run a program from the code samples for that board
one sec i'll give you the filename
msp430fr599x_euscia0_uart_01.c
which is supposed to echo back whatever is typed in the terminal
but it, er, isn't
i'm using ccs
sure, i'll keep posting in the meantime with anything i think is useful
com5 is "msp application uart 1" connected at 9600 baud
i think the LEDs on the board are supposed to light up when TX/RX happens for any reason, like loading a sketch or whatever
and they do when i flash
but when i run that sample i get no lights at all
when i type in the terminal 

_

 Thank you.

-Mark

  • 0
    Guru 41995 points

    I assume the blinky program worked.

    Are you sure the baud rate is 9600? Some of the echo examples are set to 115200. Read the source code.

    Also make sure that you are using the correct COM port. You might try the other one, just for fun.

    If they are developing on a Mac, the default terminal colors have really low contrast.

  • 0
    TI__Guru 56685 points

    Hello Mark,

    All though the code example title indicates the usage of eUSC A0 for UART, if you look in the code you will see that it is actually using eUSCIA3 and pins P6.0 and P6.1. The backchannel UART for this board utilizes eUSCIA0 and pins  P2.0 and P2.1.

    I suggest either:

    a) Use code as is and jumper the UART connections on the boosterpack header (eUSCIA3) to the debugger side of the isolation block. This will allow you to use the USB Hw connection

    b) port the code example to utilize eUSCIA0 and appropriate pins instead of eUSCIA3. 

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