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DSP MMU Faults

Other Parts Discussed in Thread: DM3730

Hi!

我使用的芯片是DM3730,我运行APP的时候,出现“DSP MMU Error Fault!  MMU_IRQSTATUS = [0x1]. Virtual DSP addr reference that generated the interrupt = [0x8c2000e0].”

我的内存分配是:

var mem_ext = [
{
    comment:    "RESET_VECTOR: off-chip memory for the reset vector table",
    name:       "RESET_VECTOR",
    base:       0x87500000,
    len:        0x00001000,//1KB
    space:      "code/data"
},
{
    comment:    "DSPLINK: off-chip memory reserved for DSPLINK code and data",
    name:       "DSPLINKMEM",
    base:       0x87501000,
    len:        0x000FF000,//1020KB
    space:      "code/data"
},
{
    comment:    "DDRALGHEAP: off-chip memory for dynamic algmem allocation",
    name:       "DDRALGHEAP",
    base:       0x87600000,
    len:        0x04000000,//64MB
    space:      "code/data"
},
{
    comment:    "DDR2: off-chip memory for application code and data",
    name:       "DDR2",
    base:       0x8B600000,
    len:        0x00C00000,//12M  0x8C200000
    space:      "code/data"
},
{
    comment:    "L4CORE: L4-Core Interconnect Address Space",
    name:       "L4CORE",
    base:       0x48000000,
    len:        0x01000000,//16MB
    space:      "data"
},
{
    comment:    "L4PER: L4-Peripheral Interconnect Address Space",
    name:       "L4PER",
    base:       0x49000000,
    len:        0x00100000,
    space:      "data"
},
];

我查阅了processors.wiki.ti.com/.../DSP_MMU_Faults

我对“the memory range to map to the DSP MMU”是指什么内存啊?我该怎么解决这个问题尼?

希望能尽快回复,感谢万分!

  • 你好,

    看看e2e上的下面讨论是否对你的问题有帮助?

    https://e2e.ti.com/support/embedded/tirtos/f/355/t/378133

    https://e2e.ti.com/support/dsp/omap_applications_processors/f/447/t/215916

  • 您好:

              我也碰到了类似的问题。您知道该怎么去修改吗?直接或者间接的解决问题?

    http://www.deyisupport.com/question_answer/dsp_arm/davinci_digital_media_processors/f/39/t/114200.aspx

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