AM572x VOUT1 clock for McASP

Hi,

You should specify, which MCASP interface are you planning to use.. As you can see from Table 24-407. MCASP Clocks and Resets MCASP interfaces do not have the same clocks.
For example MCASP1 has the following clocks:
MCASP1_AHCLKR & MCASP1_AHCLKX sourced from either of the bellow clocks:
- SYS_CLK2
- XREF_CLK0/1/2/3
-FUNC_24M_GFCLK
- ABE_24M_GFCLK
- ABE_SYS_CLK
MCASP1_AUX_GFCLK sourced from either of the bellow clocks:
- HDMI_CLK_DIV
- VIDEO1/2_CLK_DIV
- PER_APE_X1_GFCLK_DIV
IPU_L3_GICLK derived from L3_ICLK <- CORE_CLK <- CORE2_X2_CLK <-DPLL_CORE_CLKOUTX2_H1 <- DPLL_CORE.

While MCASP2 has the following clocks: MCASP2_AUX_GFCLK, MCASP2_AHCLKR, MCASP2_AHCLKX & L4PER_L3_GICLK.

I assume, you are talking about MCASPx_AUX_GFCLK (present in all McASPs). The clock frequency may vary depending on the VIDEO CLOCK DIVIDER settings. I suggest you use the Clock Tree Tool (www.ti.com/.../clocktreetool) to verify which settings correspond to different frequencies.

As for your question "1. If VOUT1 clock is used as functional clock for McASP (GFCLK) is it possible to generate all the accurate audio clocks from (for different sampling rates of 48k, 44.1k etc,)?"

This is very use case specific, depending on your dpll settings, you might not be able to derive some of the needed audio clocks..

Best Regards,
Yordan