| 我们在用IMX6S调试声卡,SSI1用的是AUDMUX的internal port2,AUDMUX的external port3上挂了一路声卡。SSI是slave模式,外部声卡是master模式。 现在的需求是SSI在放音的时候,同时驱动AUDMUX的external port3和port4,port3用来放音,port4用来采集放音数据作参考。 1。根据现在的需求,SSI1的AUDMUX的internal port2运行在internal network模式,因为时钟信号是从port3来的,那么port2和port4的PTCR寄存器的时钟信号来源选择port3吗?还是port2运行在internal network模式,port3和port4的时钟信号来源就要选择port2呢? 2。SSI在录音的时候,只想从port3输入,port4对录音会有影响吗?PDCR的INMMASK把port4屏蔽掉,只留port3,跟SSI port2与port3点对点的效果一样吗? |
Hi hong
description of AUDMUX can be found in sect.16.5.1.1.2 Internal Network Mode
http://cache.freescale.com/files/32bit/doc/ref_manual/IMX6DQRM.pdf
also may be useful to look at attached document Chapter 5
Configuring the AUDMUX Driver and
http://cache.freescale.com/files/32bit/doc/app_note/AN2628.pdf
Best regards
igor
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