Hi,
our application needs to create SPDIF signal using MCASP1. Due to pinmux restrictions we are only able to inject an external reference clock to MCASP1_ACLKX but not at MCASP1_AHCLKX.
Please let me know if the serial port can operate without AHCLKX input but with a reference clock input via ACLKX to get a correct XCLK.
Since the internal PLL of AM335X cannot create a valid AUXCLK for standard audio sampling frequencies deriving AUXCLK from CPU clock is not an option.
thanks and regards,
Christoph