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DS90UB949 +DS90UB948 BIST 功能异常

Other Parts Discussed in Thread: ALP

我们DS90UB949  +DS90UB948  来驱动一个1920X720的屏, 用ALP 可以在LCD上显示测示图像(不论是DS90UB949 还是DS90UB948 ),但是我使用BIST 来显示测试图像是, 在LCD上没有测试图像显示!我是通过写DS90UB949 的 0 x14 寄存器使能BIST. 然后发现0x0C 寄存器发现错误。:

请问,上述错误 表明什么?如何排查?

BIST 的意思就是在DS90UB949  上生成测试图像然后通过FPDIII 传给DS90UB948,并在LCD上显示吗?