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TI Home » TI E2E Community » Support Forums » Microcontrollers » Hercules™ Safety Microcontrollers » Hercules™ Safety Microcontrollers Forum » TCRAM Wrapper Control and Status Registers
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TCRAM Wrapper Control and Status Registers

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TCRAM Wrapper Control and Status Registers

This question is answered
Dave Saggs
Posted by Dave Saggs
on Jul 06 2011 04:36 AM
Intellectual660 points

The RAM wrapper register structure is defined as follows (in system.h in the TI Demo Software that comes with the TMS570 development stick):

(big endian version)

struct ramW
{
    unsigned CTRL;              /* 0x0000 */
    unsigned       : 16U;       /* 0x0004 */
    unsigned THRES : 16U;       /* 0x0004 */
    unsigned       : 16U;       /* 0x0008 */
    unsigned OCCUR : 16U;       /* 0x0008 */
    unsigned         : 31U;     /* 0x000C */
    unsigned INTCTRL :  1U;     /* 0x000C */
    unsigned           : 16U;   /* 0x0010 */
    unsigned ERRSTATUS : 16U;   /* 0x0010 */
    unsigned          : 14U;    /* 0x0014 */
    unsigned SERRADDR : 15U;    /* 0x0014 */
    unsigned          :  3U;    /* 0x0014 */
    unsigned : 32U;             /* 0x0018 */
    unsigned          :  9U;    /* 0x001C */
    unsigned UERRADDR : 20U;    /* 0x001C */
    unsigned          :  3U;    /* 0x001C */
    unsigned : 32U;             /* 0x0020 */
    unsigned : 32U;             /* 0x0024 */
    unsigned : 32U;             /* 0x0028 */
    unsigned      : 16U;        /* 0x0030 */
    unsigned TEST : 16U;        /* 0x0030 */
    unsigned : 32U;             /* 0x0034 */
    unsigned ADDRDECU;          /* 0x0038 */
    unsigned          :  9U;    /* 0x003C */
    unsigned PERRADDR : 20U;    /* 0x003C */
    unsigned          :  3U;    /* 0x003C */
};

The TEST register is commented as address offset 0x30, which agrees with the Technical Reference Manual, but in the code snippet above, from system.h, there is no entry at address offset 0x2C, therefore the TEST register will be at offset 0x2C. Can anyone confirm that this is a mistake, and that there should be another entry of......
    unsigned : 32U;             /* 0x002C */

between:
unsigned : 32U;             /* 0x0028 */

and
unsigned      : 16U;        /* 0x0030 */

regards,
Dave

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All Replies
  • Haixiao Weng
    Posted by Haixiao Weng
    on Jul 06 2011 09:06 AM
    Verified Answer
    Verified by Dave Saggs
    Genius9555 points

    You are correct. Entry 2C is missing in the code.

    Thanks,

    Haixiao

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