How do I determine the failing calibration stage for a Cyclone V or Arria V HPS SDRAM controller? - How do I determine the failing calibration stage for a Cyclone V or Arria V HPS SDRAM controller? Description To view the calibration debug information, you must turn on the debug output report by setting the RUNTIME_CAL_REPORT option to value 1 in the sequencer_defines.h file located in the hps_isw_handoff directory. After boot and during calibration, the following statements will be printed in the debug output report if calibration fails: SEQ.C: Calibration Failed SEQ.C: Error Stage : <Num> SEQ.C: Error Substage: <Num> SEQ.C: Error Group : <Num To determine the stage and sub-stage, open the sequencer.h file in the hps_isw_handoff directory and look for the calibration defines: /* calibration stages */ #define CAL_STAGE_NIL 0 #define CAL_STAGE_VFIFO 1 #define CAL_STAGE_WLEVEL 2 #define CAL_STAGE_LFIFO 3 #define CAL_STAGE_WRITES 4 #define CAL_STAGE_FULLTEST 5 #define CAL_STAGE_REFRESH 6 #define CAL_STAGE_CAL_SKIPPED 7 #define CAL_STAGE_CAL_ABORTED 8 #define CAL_STAGE_VFIFO_AFTER_WRITES 9 /* calibration substages */ #define CAL_SUBSTAGE_NIL 0 #define CAL_SUBSTAGE_GUARANTEED_READ 1 #define CAL_SUBSTAGE_DQS_EN_PHASE 2 #define CAL_SUBSTAGE_VFIFO_CENTER 3 #define CAL_SUBSTAGE_WORKING_DELAY 1 #define CAL_SUBSTAGE_LAST_WORKING_DELAY 2 #define CAL_SUBSTAGE_WLEVEL_COPY 3 #define CAL_SUBSTAGE_WRITES_CENTER 1 #define CAL_SUBSTAGE_READ_LATENCY 1 #define CAL_SUBSTAGE_REFRESH 1 Refer to the UniPHY Calibration Stages section of the Functional Description – UniPHY (.PDF) chapter of the External Memory Interface Handbook for details on the calibration stages. Custom Fields values: ['novalue'] Troubleshooting novalue False ['novalue'] ['novalue'] novalue novalue ['Arria® V ST FPGA', 'Arria® V SX FPGA', 'Cyclone® V SE FPGA', 'Cyclone® V ST FPGA', 'Cyclone® V SX FPGA'] ['novalue'] ['novalue'] ['novalue']