TMS320F28P650DK: Driverlib memory initialization values not seem to match

Part Number: TMS320F28P650DK
Other Parts Discussed in Thread: C2000WARE

Hi champs,

I am asking this for our customer.

In C:\ti\c2000\C2000Ware_6_00_01_00\driverlib\f28p65x\driverlib

memcfg.h

memcfg.c

MEMCFG_SECT_LSX_ALL, MEMCFG_SECT_GSX_ALL, MEMCFG_SECT_MSGX_ALL do not seem to match the reigsters.

Take MEMCFG_SECT_LSX_ALL as an example, the definitions 0x010003FFU are shown below.

From Table 3-520. LSxINITDONE Register Field Descriptions of the TRM

www.ti.com/.../spruiz1

the bit 10-31 are reserved, so qeustions:

1. why is there the 1 in 0x010003FFU?
2. Is this used on purpose?
3. Is it reserved by TI use or is it a typo in the code?

//
// LSxRAM - Local shared RAM config
//
#define MEMCFG_SECT_LS0             0x01000001U //!< LS0 RAM
#define MEMCFG_SECT_LS1             0x01000002U //!< LS1 RAM
#define MEMCFG_SECT_LS2             0x01000004U //!< LS2 RAM
#define MEMCFG_SECT_LS3             0x01000008U //!< LS3 RAM
#define MEMCFG_SECT_LS4             0x01000010U //!< LS4 RAM
#define MEMCFG_SECT_LS5             0x01000020U //!< LS5 RAM
#define MEMCFG_SECT_LS6             0x01000040U //!< LS6 RAM
#define MEMCFG_SECT_LS7             0x01000080U //!< LS7 RAM
#define MEMCFG_SECT_LS8             0x01000100U //!< LS8 RAM
#define MEMCFG_SECT_LS9             0x01000200U //!< LS9 RAM
#define MEMCFG_SECT_LSX_ALL         0x010003FFU //!< All LS RAM

/*****************************************************************************
//
// MemCfg_initSections
//
//*****************************************************************************
void
MemCfg_initSections(uint32_t ramSections)
{
    //
    // Check the arguments.
    //
    ASSERT(((ramSections & MEMCFG_SECT_TYPE_MASK) == MEMCFG_SECT_TYPE_D)   ||
           ((ramSections & MEMCFG_SECT_TYPE_MASK) == MEMCFG_SECT_TYPE_LS)  ||
           ((ramSections & MEMCFG_SECT_TYPE_MASK) == MEMCFG_SECT_TYPE_GS)  ||
           ((ramSections & MEMCFG_SECT_TYPE_MASK) == MEMCFG_SECT_TYPE_MSG) ||
           (ramSections == MEMCFG_SECT_ALL));

    //
    // Set the bit in the various initialization registers that starts
    // initialization.
    //
    EALLOW;

    switch(ramSections & MEMCFG_SECT_TYPE_MASK)
    {
        case MEMCFG_SECT_TYPE_D:
            HWREG(MEMCFG_BASE + MEMCFG_O_DXINIT)   |= MEMCFG_SECT_NUM_MASK &
                                                      ramSections;
            break;

        case MEMCFG_SECT_TYPE_LS:
            HWREG(MEMCFG_BASE + MEMCFG_O_LSXINIT)  |= MEMCFG_SECT_NUM_MASK &
                                                      ramSections;
            break;

        case MEMCFG_SECT_TYPE_GS:
            HWREG(MEMCFG_BASE + MEMCFG_O_GSXINIT)  |= MEMCFG_SECT_NUM_MASK &
                                                      ramSections;
            break;

        case MEMCFG_SECT_TYPE_MSG:
            HWREG(MEMCFG_BASE + MEMCFG_O_MSGXINIT) |= MEMCFG_SECT_NUM_MASK &
                                                      ramSections;
            break;

        case MEMCFG_SECT_TYPE_MASK:
            //
            // Initialize all sections.
            //
            HWREG(MEMCFG_BASE + MEMCFG_O_DXINIT)   |= MEMCFG_SECT_NUM_MASK &
                                                      MEMCFG_SECT_DX_ALL;
            HWREG(MEMCFG_BASE + MEMCFG_O_LSXINIT)  |= MEMCFG_SECT_NUM_MASK &
                                                      MEMCFG_SECT_LSX_ALL;
            HWREG(MEMCFG_BASE + MEMCFG_O_GSXINIT)  |= MEMCFG_SECT_NUM_MASK &
                                                      MEMCFG_SECT_GSX_ALL;
            HWREG(MEMCFG_BASE + MEMCFG_O_MSGXINIT) |= MEMCFG_SECT_NUM_MASK &
                                                      MEMCFG_SECT_MSGX_ALL;
            break;

        default:
            //
            // Do nothing. Invalid ramSections. Make sure you aren't OR-ing
            // values for two different types of RAM.
            //
            break;
    }

    EDIS;
}