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device not in rom mode...manually enter rom mode before programming

Other Parts Discussed in Thread: BQ40Z50, BQ40Z80

40z80的使用EV2300连接Battery Management Studio,下使用firmware下载底层驱动时出现下列情况,怎么解决

ManufacturerAccess() 0x0F00 ROM Mode
下发指令也无法下发