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DLPC3479: test pattern可以正常投图,internal pattern无法投图

Part Number: DLPC3479

test pattern可以正常投图,internal pattern无法投图,LED不亮。

实测波形:internal pattern无法投图时,LED_SEL_0和LED_SEL_1无波形,cypress和master 3479之间的I2C有信号发出

                  test pattern正常投图是,LED_SEL_0和LED_SEL_1有波形,cypress和master 3479之间的I2C有信号发出

无法投图时,master和slave各路电源正常,初始化完成信号HOST_IRQ为低电平

请帮你分析一下,谢谢!