我用ssf138工具烧写UBOOT,可是每次都是卡在这里:
(AIS Parse): Read magic word 0x41504954.
(AIS Parse): Waiting for BOOTME... (power on or reset target now)
(AIS Parse): BOOTME received!
(AIS Parse): Performing Start-Word Sync...
(AIS Parse): Performing Ping Opcode Sync...
(AIS Parse): Boot aborted. Booting SFT failed. Trying again (you may need to reset the target)...
请问这是怎么回事啊?怎么解决呢?