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MSP4305529 Bluetopia Stack extern Error(e46)

armen aynilian
Intellectual 275 points


Hi,

Using an IAR IDE and In the process of implementing a mechanism to send data to Bluetooth client, I am trying to make a free memory pointer external so that I can pass the data when  the BTPSAPI SPP_Event_Callback(...) is executed in the StoneStreet One Bluetopia stack.

I added this code below . I am getting and error of :

Error(e46) Undefined external "extern_memory_pntr_str_1"

Let me know if anyone ran into this issue.

Thanks,

Armen.


here is the code....

typedef struct {
int data_array[400];
int field2;
} extern_memory_pntr_str_t;

extern extern_memory_pntr_str_t *extern_memory_pntr_str_1;

if ((extern_memory_pntr_str_1 = (extern_memory_pntr_str_t *)BTPS_AllocateMemory(sizeof(extern_memory_pntr_str_t)))!= NULL){

for (jok=0; jok<400; jok++){

extern_memory_pntr_str_1->data_array[jok] = jok;
}
}

  • 0
    Prodigy 110 points

    Hi ,

    I am trying to get the the software configuration of Bluetopia through CCS version 5 . I am new to Bluetopia stack so can anyone provide me the steps to build the apps demo of Bluetopia stack through CCS .

    i am following this link but enable to build my project/files .

    http://processors.wiki.ti.com/index.php/CC256x_MSP430_Bluetopia_Basic_Demo_APPS

    Thanks & Regards,

    Ruchin

  • 0
    TI__Expert 5210 points

    Armen,

    You are declaring the variable extern in this file. You need to declare it first in a file, and then you would declare it extern in the other files that you want to use it in.

    Are you just trying to declare a global variable to be used within the same C file? If so, you don't need the "extern" variable type set. You only need the extern if you are trying to use the variable in another file.

    Such as:

    In main.c you declare a variable as:

    int variableinmain;

    Then in otherfile.c, you declare it as:

    extern int variableinmain;

    Hope this clears things up a bit.

     

    -Jason 

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