TI中文支持网我们第二版新板子在调试过程中，ddr换成了两片512M的ddr3l，和原始方案（第一版用的256*2）完全相同，发现uboot在533M时，无法运行，启动后uboot也无打印信息，改成400M，可以起来，但是加载m3 firmware时，运行下图，异常死机，完全没响应。后来，把两个板子，换成第一版同样的256M*2工作在的，一块板子启动工作在533和400情况和下图一样，另一块也是一样，但是在400M，程序正常起来后，运行一段几十s时间，后，直接死机，无响应。
uboot kernel 应用程序完全一样，在第一版上正常，我比较怀疑是ddr的问题，ddr，有什么可以优化的地方吗？谢谢能给予一些帮助。
DEMOCFG Value: 0 Videocodecmode : 8 Videocodecres: 0 streamtype: 2vsenable : 0 ./bin/ipnc_rdk_mcfw.outVNF_QUALITY TRISTREAM TRIPLE_H264 TI2A AEWB 1080P_D1 H264 HIGH_SPEED1 H264 HIGH_SPEED2 MJPEG 80 & [m3video] 421: SYSTEM : System Common Init Done !!! Creat queue id:163845 queue id:163845 queue id:65538 [c6xdsp ] Remote Debug Shared Memory @ 0xbff00000 [m3video] Remote Debug Shared Memory @ 0xbff05020 [m3vpss ] Remote Debug Shared Memory @ 0xbff0a040 ApproDrvInit: 7 queue id:163845 [c6xdsp ] Remote Debug Shared Memory @ 0xbff00000 [m3video] Remote Debug Shared Memory @ 0xbff05020 [m3vpss ] Remote Debug Shared Memory @ 0xbff0a040 [m3video] 721: SYSTEM : System Video Init in progress !!! [m3vpss ] 722: SYSTEM : System VPSS Init in progress !!! [m3video] 722: SYSTEM: Creating ListMP [VIDEO-M3_IPC_OUT_0] in region 0 ... [m3video] 722: SYSTEM: Creating ListMP [VIDEO-M3_IPC_IN_0] in region 0 ... [m3video] 723: SYSTEM: ListElem Shared Addr = 0xbe284180 [m3video] 725: SYSTEM: Creating ListMP [VIDEO-M3_IPC_OUT_1] in region 0 ... [m3video] 725: SYSTEM: Creating ListMP [VIDEO-M3_IPC_IN_1] in region 0 ... [m3video] 726: SYSTEM: ListElem Shared Addr = 0xbe287680 [m3video] 736: SYSTEM: Creating ListMP [VIDEO-M3_IPC_OUT_29] in region 0 ... [m3video] 736: SYSTEM: Creating ListMP [VIDEO-M3_IPC_IN_29] in region 0 ... [m3video] 737: SYSTEM: ListElem Shared Addr = 0xbe28ab80 [c6xdsp ] Remote Debug Shared Memory @ 0xbff00000 [m3video] Remote Debug Shared Memory @ 0xbff05020 [m3vpss ] Remote Debug Shared Memory @ 0xbff0a040 [m3video] 739: SYSTEM: Creating ListMP [VIDEO-M3_IPC_OUT_30] in region 0 ... [m3vpss ] === I2C0/2 Clk is active === [m3video] 740: SYSTEM: Creating ListMP [VIDEO-M3_IPC_IN_30] in region 0 ... [m3vpss ] PLATFORM: UNKNOWN CPU detected, defaulting to VPS_PLATFORM_CPU_REV_1_0 [m3video] 740: SYSTEM: ListElem Shared Addr = 0xbe2a4800 [m3vpss ] PLATFORM: UNKNOWN CPU detected, defaulting to ISS_PLATFORM_CPU_REV_2_1 [m3video] 742: HDVICP: Doing PRCM for IVAHD[0] ...[m3vpss ] 741: SYSTEM: Creating ListMP [VPSS-M3_IPC_OUT_0] in region 0 ... [m3video] 742: HDVICP: PRCM for IVAHD[0] ... DONE. [m3vpss ] 742: SYSTEM: Creating ListMP [VPSS-M3_IPC_IN_0] in region 0 ... [m3video] 744: SYSTEM : Initializing Links !!![m3vpss ] 742: SYSTEM: ListElem Shared Addr = 0xbe2be480 [m3vpss ] 745: SYSTEM: Creating ListMP [VPSS-M3_IPC_OUT_1] in region 0 ... [m3video] 744: SYSTEM : FREE SPACE : System Heap= 2088976 B, Mbx = 10240 msgs)[m3vpss ] 746: SYSTEM: Creating ListMP [VPSS-M3_IPC_IN_1] in region 0 ... [m3vpss ] 747: SYSTEM: ListElem Shared Addr = 0xbe2c1980 [m3video] 744: SYSTEM : FREE SPACE : SR0 Heap= 2354304 B (2 MB)[m3video] 745: SYSTEM : FREE SPACE : Frame Buffer= 42991488 B (40 MB)[m3video] 745: SYSTEM : FREE SPACE : Bitstream Buffer = 22019968 B (20 MB)[m3vpss ] 760: SYSTEM: Creating ListMP [VPSS-M3_IPC_OUT_24] in region 0 ... [m3vpss ] 761: SYSTEM: Creating ListMP [VPSS-M3_IPC_IN_24] in region 0 ... [m3video] 745: SYSTEM: Opening MsgQ [VPSS-M3_MSGQ] ... [m3vpss ] 761: SYSTEM: ListElem Shared Addr = 0xbe2c4e80 [m3video] 746: SYSTEM : FREE SPACE : Tiler Buffer= 57 B (0 MB) - TILER OFF[m3vpss ] 764: SYSTEM: Creating ListMP [VPSS-M3_IPC_OUT_25] in region 0 ... [m3vpss ] 765: SYSTEM: Creating ListMP [VPSS-M3_IPC_IN_25] in region 0 ... [m3video] Entered the MctnfLink_init()[m3vpss ] 765: SYSTEM: ListElem Shared Addr = 0xbe2e4880 [m3vpss ] 768: SYSTEM: Creating ListMP [VPSS-M3_IPC_OUT_26] in region 0 ... [m3vpss ] 768: SYSTEM: Creating ListMP [VPSS-M3_IPC_IN_26] in region 0 ... [m3vpss ] 769: SYSTEM: ListElem Shared Addr = 0xbe304280 [m3vpss ] 775:€m稧名"郅G郏G卿@;
Ternence_Hsu：
你好；
请问更换DDR 后，在uboot 和kernel 中 ddr 的时序是否有重新按ddr规格配置？
qiankun li：
回复 Ternence_Hsu:
没有重新配置，但是我们两块新板子换过来之前的ddr，也不能稳定运行，只是一块降频后，可以运行过加载m3 firmware，完全启动link后，几s后发现，死掉，电源供电电流也从600多毫安，急剧下降到300多毫安。有时观察到200多毫安，降到200多毫安，网口只是灯比较暗，也无法识别网线插拔，我们这一版，改了电源，感觉电源也可能会引起；
