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DLPC3438无法完成初始化

Other Parts Discussed in Thread: DLPC3438

dlpc3438无法与主控芯片进行I2c,通讯,通过示波器测量发现HOST_IRQ一直是高电平,无法被拉低完成初始化。这是什么问题?

  • 您好,请参考手册:

    http://www.ti.com/lit/ds/symlink/dlpc3438.pdf

    Page 48

    请确保所有信号满足上电需求。

    另外请确保

    1)输入时钟满足要求

    2)所有芯片正确连接(DLPC3438/DMD/PMIC)

    3)所有输入电源正常(1.1V/1.8V/3.3V等)

    。。。