atm270.c

dm270 source code

/*
    DM270 ARM Evaluation Software

    (c)Texas Instruments 2003
*/

/**
    \file atm270.c
    \brief Address trace module related APIs
*/
#include <atm270.h>


Uint16 *ATM_addr=(Uint16*)ATM_ADDR(ATM00);       ///< Pointer to addresses stored in 0x30D04-0x30D7E


/**
    \brief  Set address trace module mode

    Selects, if all 32-bits of the ARM instruction address,
    or only lower 16-bits of the ARM instruction address will be stored

    \param  addressSize     0:store 32-bit address (ATM_32BIT_ADDR), 1:store 16-bit address (ATM_16BIT_ADDR)

    \return if success, \c E_PASS, else error code

    \par Example:
    \code
    #include <system/atm270.h>

    ...

    ATM_STOP();         // stop storing ARM instruction address
    ATM_setMode(1);     // store only lower 16-bits of ARM instruction address
    ATM_START();        // start storing ARM instruction address

    ...

    ATM_STOP();         // stop storing ARM instruction address, address trace can be seen in registers 0x30D04-0x30D7E
    \endcode
*/
STATUS ATM_setMode( Uint8 addressSize){
    ATM_FSET( ATMCTRL, LOW16, addressSize);

    return E_PASS;
}

/**
    \brief  Get address trace module mode

    \return 0: 32-bit address is stored (ATM_32BIT_ADDR), \n 1: 16-bit address is stored (ATM_16BIT_ADDR)

    \see ATM_setMode()
*/
Uint8 ATM_getMode(){
    return ATM_FGET( ATMCTRL, LOW16);
}