TMS320C6678: DDR3 contents after soft reboot

Dear customer,

Sorry for the late reply.Thanks for your patience.

From the software point of view, you can include some DDR3 test sequence to ensure the values.

This is an extract from the gel file of C6678. Try whether you can include some sequence like this after a soft reset. And also verify the values using memory browser window of CCS.

You can modify this code, in a way ot clears the values. 

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#define DDR3_TEST_START_ADDRESS (0x80000000)

#define DDR3_TEST_END_ADDRESS (DDR3_TEST_START_ADDRESS + (4 * 100))

ddr3_memory_test ()
{
unsigned int index, value;

GEL_TextOut( "DDR3 memory test... Started\n" );

/* Write a pattern */
for (index = DDR3_TEST_START_ADDRESS; index < DDR3_TEST_END_ADDRESS; index += 4) {
*index = index;
}

/* Read and check the pattern */
for (index = DDR3_TEST_START_ADDRESS; index < DDR3_TEST_END_ADDRESS; index += 4) {

value = index;

if (value != index) {
GEL_TextOut( "DDR3 memory test... Failed\n" );
return -1;
}
}

/* Write a pattern for complementary values */
for (index = DDR3_TEST_START_ADDRESS; index < DDR3_TEST_END_ADDRESS; index += 4) {
*index = ~index;
}

/* Read and check the pattern */
for (index = DDR3_TEST_START_ADDRESS; index < DDR3_TEST_END_ADDRESS; index += 4) {

value = *index;

if (value != ~index) {
GEL_TextOut( "DDR3 memory test... Failed\n" );
return -1;
}
}

GEL_TextOut( "DDR3 memory test... Passed\n" );
return 0;
}

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Regards

Shankari