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器件型号：PCMD3140 您好！
我尝试使用4个 PDM 麦克风输入在我们的电路板(IMX8MQ)上设置 PCMD3140。
目前、ASI 输出通道格式为 TDM 模式并设置4通道输入、CH1和 CH2工作正常、但 CH3和 CH4不工作。
我还根据数据表上的示例设置配置、但 CH3和 CH4仍然不起作用。
根据 DEV_STS0寄存器(0x76)、看起来 ch3和 Ch4功率状态不正确。
完整寄存器信息如下所示。
0 1 2 3 4 5 6 7 8 9 a b c d e f 0123456789abcdef
00: 00 00 81 00 00 05 00 04 00 00 00 00 01 02 03 00 ..?..?.?....???.
10: 00 00 00 02 48 44 10 10 04 20 02 08 00 00 02 40 ...?HD??? ??..?@
20: 00 00 41 00 00 00 00 00 00 00 00 54 00 00 00 00 ..A........T....
30: 00 00 00 ff 00 00 40 00 40 00 00 00 00 fc ff 80 ...?..@.@....???
40: 00 00 fc ff 80 00 00 00 ff 80 00 00 00 ff 80 00 ..???...??...??.
50: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
60: 00 00 00 00 00 00 00 00 00 00 00 01 40 7b 00 00 ...........?@{..
70: e7 00 00 f0 f0 e0 c0 e0 00 00 ff 00 ff ac 50 00 ?..?????..?.??P.
80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
此致、
Jay
