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标题: VOP寄存器写失败 [打印本页]

作者: 王猛 时间: 2021-1-4 14:06
标题: VOP寄存器写失败
调试MIPI屏始终未点亮，跟踪uboot时候发现写vopl寄存器的时候写失败。有的可以成功，有的失败。请问是板子坏了吗？
Read [0x00000000ff8f0008] = 0x20801800
Write [0x00000000ff8f0008] = 0x20801800
Read [0x00000000ff8f0008] = 0x20801800

Read [0x00000000ff8f000c] = 0x0003a000
Write [0x00000000ff8f000c] = 0x0003c000
Read [0x00000000ff8f000c] = 0x0003c000

Read [0x00000000ff8f000c] = 0x0003c000
Write [0x00000000ff8f000c] = 0x0003d000
Read [0x00000000ff8f000c] = 0x0003d000

Read [0x00000000ff8f00b0] = 0x00000000
Write [0x00000000ff8f00b0] = 0x00000001
Read [0x00000000ff8f00b0] = 0x00000000

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