iMX6 OpenRex Memory Calibration

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