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Type: Posts; User: Neal

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  1. Replies
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    ericfont-the attachment method you used didn't...

    ericfont-the attachment method you used didn't work. Would you please possibly include the link to the other product's app note.
    Thanks
  2. KurtE, thanks for the explanation of what the...

    KurtE, thanks for the explanation of what the arm_dcache_flush() and arm_dcache_delete() methods do. I have seen them used in various places in the Audio Library and I wasn't sure what they did. I...
  3. Can DMA to i2s Data Transfer Get Corrupted by a Write to Source Location

    I am working with a Teensy 4.1 and the Audio Adapter. I extracted some code from the Audio Library output_i2s to do some direct writing to the sgtl5000 DAC. Here is the begin function I am using:
    ...
  4. Wow! That is very helpful. Thanks Paul Neal

    Wow! That is very helpful. Thanks Paul

    Neal
  5. i.MX RT1050 Reference Manual, Rev. 1, 03/2018 in imxrt.h

    I am using the Teensy 4.1 and the imxrt.h for device specific register information. At the beginning of the imxrt.h file is a rference to the i.MX RT1050 Reference Manual. Throughout the imxrt.h...
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    To answer my own question in my last post, I had...

    To answer my own question in my last post, I had to add a data cache management functions must be used to flush cached data after data after each output to the CODEC. The function I used I saw in the...
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    Paul, both excellent suggestions. I left the SOFF...

    Paul, both excellent suggestions. I left the SOFF and SLAST that way in case I wanted to use a larger buffer later. I left the completion interrupt in so I could monitor that things were running by...
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    Thanks for the replies. I think I should have...

    Thanks for the replies. I think I should have explained better what I am doing better in my original post. I got something working last night that I will include for others to view.

    My goal is to...
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    Writing Directly to SGTL5000 CODEC DACs

    I am new to the forum and in my application I am using a Teensy4.1 with the Audio Shield and attempting to do some digital signal processing for a class I am teaching.

    Has anyone come up with a...
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