iMX6 OpenRex Memory Calibration

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Disclaimer of caution

This procedure is intended for manufacturing use only and should be never applied for shipped iMX6 OpenRex SBC.

Description

Memory calibration procedure consists of following steps:

  • Short BOOT_MODE jumper JP2 on iMX6 OpenRex SBC
  • Connect USB_OTG port to host PC utilizing microUSB-USB cable
  • Power on iMX6 OpenRex SBC
  • Execute DDR Stress Tester at host PC using command line
  • Configure DDR Stress Tester and calibrate memory
  • Remove BOOT_MODE jumper JP2
  • Power off iMX6 OpenRex SBC

Requirements

  • micro USB cable
  • 5V 2A Power supply
  • iMX6 OpenRex SBC
  • PC controlling the test
  • DDR Stress Tester 2.52 application

Calibration

Stress tester v2.52 (Ultra)

  • 4GB RAM - DDR_Stress_Tester_V2.52_Imx6Rex/script/voipac/imx6qp_openrex_ultra_MT41K512M16HA-125A.inc
  • 4GB RAM - DDR_Stress_Tester_V2.52_Imx6Rex/script/voipac/imx6q_openrex_max4g_MT41K512M16HA-125A.inc
  • 2GB RAM - DDR_Stress_Tester_V2.52_Imx6Rex/script/voipac/imx6q_openrex_max_MT41K256M16TW-107P.inc
  • 512MB RAM - DDR_Stress_Tester_V2.52_Imx6Rex/script/voipac/imx6s_openrex_basic_MT41K128M16JT-125K.inc

Example of operation

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