rg100a-aa jtag使用好像认不到flash，怎么回事？
CPU Chip ID: 00000110001101011000000101111111 (0635817F)*** Found a Broadcom BCM6358 Rev 1 CPU chip ***
- EJTAG IMPCODE ....... : 00000000100000011000100100000100 (00818904)
- EJTAG Version ....... : 1 or 2.0
- EJTAG DMA Support ... : Yes
- EJTAG Implementation flags: R4k MIPS16 MIPS32
Issuing Processor / Peripheral Reset ... Done
Enabling Memory Writes ... Done
Halting Processor ... <Processor did NOT enter Debug Mode!> ... Done
Clearing Watchdog ... Done
Loading CPU Configuration Code ... Skipped
Detecting Flash Base Address...
Read MPI register value : 00000000
MPI register show Flash Access Base Addr : 00000000
Probing Flash at Address: 0x00000000 ...
Detected Chip ID (VenID:DevID = 0000 : 0000)
*** Unknown or NO Flash Chip Detected ***
*** REQUESTED OPERATION IS COMPLETE ***
请按任意键继续. . .
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