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  1. Thanks Chip. I clearly did not google enough...

    Thanks Chip. I clearly did not google enough before starting to write code. I will look into the solutions you point to.

    Per
  2. Hi MarkT, Thanks for the suggestion. That...

    Hi MarkT,

    Thanks for the suggestion. That might have been simpler to implement, but now that I have a working (but clunky) solution, I am reluctant to change to another clunky solution. I would...
  3. IRQ/ISR issues with my float version of AudioStream

    I decided to make a version of AudioStream that works with float32_t instead of int16_t for use in an SDR project based on a Teensy 4.

    I just got it to work, but not in a very elegant way. I need...
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    Hi Blackaddr, Thanks for your explanations. I...

    Hi Blackaddr,

    Thanks for your explanations. I mostly agree with your analysis and I do not expect any drastic improvements in weak signal SNR through my changes in the I2S functions. The one point...
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    The 16-bit values (instead of 24) was due to a...

    The 16-bit values (instead of 24) was due to a mistake I made in the control_WM8731.cpp. I had changed to 32-bit mode in the master enable method, while I am using it in slave mode. The corrected...
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    Some more findings: It seems like the DMA is...

    Some more findings:

    It seems like the DMA is for some reason running amok and not stopping at the end of the destination buffer. I added the following printout to the ISR to check the destination...
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    Hi Pete, Thanks for your reply. That part...

    Hi Pete,

    Thanks for your reply.

    That part of the code is taken without modification from input_i2s.cpp. I tried to add a return as you suggest (even another one for the case that allocation of...
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    Issues when modifying input_i2s.cpp

    I am trying to make a version of input_i2s.cpp for Teensy 4 that would allow me to capture all 24 bits from a WM8731 audio codec and shift the bits left by a selectable number of steps before using...
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    Yes, I mostly appreciate the simplicity of the...

    Yes, I mostly appreciate the simplicity of the Arduino IDE and the minimal configuration and setup necessary to get up and running. But sometimes some of the things that are hidden and make simple...
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    Thanks defragster for that piece of information....

    Thanks defragster for that piece of information. Good to know.
    I am more used to an ordinary C/C++ environment where there is perhaps more to learn to get started, but also less of the "helpful"...
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    I had trouble compiling my code (in the Arduino...

    I had trouble compiling my code (in the Arduino environment) when I had placed the definition of getTeensy3Time() in a separate file. After some head scratching, I realized I had to explicitly...
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