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您好,我使用贵司得TMS320C6747芯片,计划通过是HPI BOOT进行固件得更新,现在HPIC,HPIA都可以正确写入,HPID在写0x8000_0000 ~ 0x8001FFFF Shared RAM也是成功得,但是通过HPI写DSP L2 RAM得空间0x0080_0000 ~ 0x0083_FFFF总是失败,能够看到HPIA在更新,L2 RAM的数据不变化,请问这是什么原因,谢谢!并且能够看到正确的握手hrdy信号。
HPIA时序 写0x0080_0f00地址
HPI D时序,写0xFF01_2345
我帮您升级到了英文论坛请关注:
e2e.ti.com/.../tms320c6747-hpi-boot-failed-to-write-dsp-l2-ram
谢谢,明白了,DSP L2 RAM得空间0x0080_0000 ~ 0x0083_FFFF是DSP操作L2的地址段,EDMA操作不了,HPI是EDMA操作的,那就的访问EDMA的L2 RAM地址段,就是0x1180_0000~0x1183_FFFF