master clock frequency

[Jente105]

firstly, thanks for your work on this subject.
I was looking to replace the PCM5102a with a better dac. I noticed that the STM32F411xE configuration could provide the masterclock. what would the frequency at the rated sample frequencies(44.1, 48 and 96 kHz) of your firmware be when masterclock generation is enabled?

thanks,

[TobiasVanDyk]

Hi Yikes those calculations are above my paygrade I’m afraid The best is to post your query on the origin of the source code that I am using which is https://github.com/har-in-air/STM32F411_USB_AUDIO_DAC and https://github.com/dragonman225/stm32f469-usbaudio If you get to a working configuration with an external i2s clock please let me know the details.. Best wishes Tobias van Dyk From: Jente105 ***@***.***> Sent: Wednesday, 26 June 2024 14:11 To: TobiasVanDyk/STM32F411-PCM5102A-24bit-USB-Audio-DAC ***@***.***> Cc: Subscribed ***@***.***> Subject: [TobiasVanDyk/STM32F411-PCM5102A-24bit-USB-Audio-DAC] master clock frequency (Issue #3) firstly, thanks for your work on this subject. I was looking to replace the PCM5102a with a better dac. I noticed that the STM32F411xE configuration could provide the masterclock. what would the frequency at the rated sample frequencies(44.1, 48 and 96 kHz) of your firmware be when masterclock generation is enabled? thanks, — Reply to this email directly, view it on GitHub<#3>, or unsubscribe<https://github.com/notifications/unsubscribe-auth/AFJPEA33SRGV5RSUQOJJ3BTZJKVVXAVCNFSM6AAAAABJ5YEXRGVHI2DSMVQWIX3LMV43ASLTON2WKOZSGM3TKMJWGE3TGMQ>. You are receiving this because you are subscribed to this thread.Message ID: ***@***.******@***.***>>

[TobiasVanDyk]

Hi I attach the SCK frequencies from the datasheet page 24 Best wishes TvD From: Jente105 ***@***.***> Sent: Wednesday, 26 June 2024 14:11 To: TobiasVanDyk/STM32F411-PCM5102A-24bit-USB-Audio-DAC ***@***.***> Cc: Subscribed ***@***.***> Subject: [TobiasVanDyk/STM32F411-PCM5102A-24bit-USB-Audio-DAC] master clock frequency (Issue #3) firstly, thanks for your work on this subject. I was looking to replace the PCM5102a with a better dac. I noticed that the STM32F411xE configuration could provide the masterclock. what would the frequency at the rated sample frequencies(44.1, 48 and 96 kHz) of your firmware be when masterclock generation is enabled? thanks, — Reply to this email directly, view it on GitHub<#3>, or unsubscribe<https://github.com/notifications/unsubscribe-auth/AFJPEA33SRGV5RSUQOJJ3BTZJKVVXAVCNFSM6AAAAABJ5YEXRGVHI2DSMVQWIX3LMV43ASLTON2WKOZSGM3TKMJWGE3TGMQ>. You are receiving this because you are subscribed to this thread.Message ID: ***@***.******@***.***>>

[TobiasVanDyk]

[TobiasVanDyk]

Also check issue #26 master clock frequency for 4 wire i2s
"As per reference manual RM0383 for F411, when MCLK is enabled, MCLK = 256 x Fs (page 585)I've added a comment in the Makefile."