Fatal Error: Segment DATA20_Z must be defined in a segment definition option

Hello,

Can you try selecting "large memory model" under Project --> Options --> General Options --> Target (tab) --> Data Model?

Regards,

Priya

Hi,

I have the same problem. I have selected the large memory model but the problem still persist.

The code is in my Interrupt Routine for USCI_A0_VECTOR

When the code is as follows then I get an error:

unsigned char RXData;

    if((UART_queryStatusFlags(__MSP430_BASEADDRESS_USCI_A0__, UART_RECEIVE_ERROR))||
           (UART_queryStatusFlags(__MSP430_BASEADDRESS_USCI_A0__, UART_FRAMING_ERROR)) ||
                   (UART_queryStatusFlags(__MSP430_BASEADDRESS_USCI_A0__, UART_PARITY_ERROR))  ||
                           (UART_queryStatusFlags(__MSP430_BASEADDRESS_USCI_A0__, UART_OVERRUN_ERROR))){
                                   
                                   unsigned char DummyRead = UART_receiveData(__MSP430_BASEADDRESS_USCI_A0__);
                                   
                           }
    else{
                RXData =  UART_receiveData(__MSP430_BASEADDRESS_USCI_A0__);
    }

If I remove the highlight code then the problem disappears.

The error I receive:

Fatal Error[e72]: Segment DATA20_Z must be defined in a segment definition option (-Z, -b or -P)

Regards,

Gary

As per the MSP430WARE example code when I compile for MSP430F5438a then it compiles fine but when I compile for the MSP430F5310 then I receive the above mentioned error. Is there a linker error?

From IAR

I notice that the linker configuration file:

<EW430>\430\config\lnk430f5310.xcl

.. does not contain definitions of DATA20_Z, like for example the file <EW430>\430\config\lnk430f5324.xcl does.

If you make a copy of "lnk430f5310.xcl" and place it in $PROJ_DIR$, you can add the following line to the "// Read/write memory" group of commands:

-Z(DATA)DATA20_I,DATA20_Z,DATA20_N,DATA20_HEAP+_DATA20_HEAP_SIZE

I will check with our developers if this is to be considered a bug in EW430, since I think you should be able to build with Data Model = Large for MSP430F5310.