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Please choose the operation:
1: Load system code to SDRAM via TFTP.
2: Load system code then write to Flash via TFTP.
3: Boot system code via Flash (default).
4: Entr boot command line interface.
7: Load Boot Loader code then write to Flash via Serial.
9: Load Boot Loader code then write to Flash via TFTP.
You choosed 3
0
3: System Boot system code via Flash.
这里应该按2来中断的
但是无论我按多快的速度 都中断不了 我也是曾当过十几年光棍的人,手速肯定没问题