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    有块V3s板子烧录时候检测不到DDR,即使一直插着电,V3s也不发热,冷冰冰的,是不是V3s坏了呢?

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    v3s ddr 烧录
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    • M
      memory LV 7 last edited by

      e0207b09-be4a-485b-b58d-159e90754714-image.png

      HELLO! BOOT0 is starting!
      get_ifm reg_val=7
      axp read fail, maybe no pmu
      set pmu vol failed,maybe no pmu
      DRAM DRIVE INFO: V0.7
      DRAM Type = 2 (2:DDR2,3:DDR3,6:LPDDR2,7:LPDDR3)
      DRAM CLK = 360 MHz
      DRAM zq value: 000039bb
      initializing SDRAM Fail.
      beign to init dram
      DRAM DRIVE INFO: V0.7
      DRAM Type = 2 (2:DDR2,3:DDR3,6:LPDDR2,7:LPDDR3)
      DRAM CLK = 360 MHz
      DRAM zq value: 000039bb
      
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      • YuzukiTsuru
        柚木 鉉 LV 9 last edited by

        热风枪热一热看看芯片内有没有虚焊(?

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        • M
          mstempin LV 4 last edited by

          似乎 SRAM 之前还有另一个问题:看起来 PMU 不工作,这可以解释为什么 DRAM 在没有电源的情况下不工作。

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          • YuzukiTsuru
            柚木 鉉 LV 9 @mstempin last edited by

            @mstempin 绑定PMU?

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            • T
              TEVET LV 7 last edited by

              电源正不正常呀, DRAM的 VREF正常不?

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