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DLPC3479: DLP EVM GUI 3.1.0.5软件无法连接设备,显示EVM Status:Connected,Powered Off

Part Number: DLPC3479
Other Parts Discussed in Thread: DLP4710, , DLPA3005

DLPC3479+DLPA3005+DLP4710方案,上位机可以发指令,使得系统正常投图。但是通过DLP EVM GUI 3.1.0.5软件,显示EVM Status:Connected,Powered Off(此时主从片HOST_IRQ低电平,DLPA3005输出的每一路电源都正常,包括给DMD的-14V,10V和18V)。

系统链路是:上位机通过USB接口连接到驱动板HUB芯片,HUB芯片出来一路USB到cypress芯片,cypress出来I2C和UART,I2C到DLPC3479,UART到MCU

请帮忙分析一下为什么无法连接,谢谢!我们想通过此软件烧录需要投放的图片