Thermal3 Command
(requires ENG access)
dbg ddrmemtest (swath|spare)

Description Performs the following test on the specified memory buffer:
  • Data bus bit walk:
Walks a one through all data bits on the memory interface. The one is walked through the de-multiplexed data bus, so each physical data signals is exercised twice.
  • Address bus bit walk:
Walks a one through the address bits on the memory interface. The one is walked through the full logical address of the memory interface before the address is converted into banks, row address, and column address.
  • Write address to all memory locations:
This test writes each double word with its own address. After filling the memory, the test then reads back and checks the contents. The test is then repeated writing the bitwise inverse of the address to each double word.

This is intended as a production and development tool and should not be used during normal operation.

Notes Thermal 1.0 / 1.7x equivalents:
  • The monitor command dbg ddrmemtest does not have an equivalent.

Thermal 2 equivalents:
  • The monitor command dbg ddrmemtest does not have an equivalent.

Related Documents COMMAND: dbg ethernettest
COMMAND: dbg addressbustest
ERRORCODE: [06602] The memory test buffer specification is invalid
ERRORCODE: [06603] The memory test failed

Applies to: THERMAL3
Access: ENG
Modified: Wed Jul 16 04:28:30 2008
Updated: Wed Jul 16 04:52:22 2008
Module: DBG