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I would like to use the TAS6424 with an ESP32 for active crossover stereo. TDM is not possible because the ESP32 doesn't support it, and and I can't use the ESP32-C3 because I need Bluetooth Classic. The TAS6424 uses I2S with two SDIN pins. From this thread I learned this can be done by using two I2S peripherals, one as a master and the other as a slave of the first. From what I read about the GPIO matrix, the slave's clock input pins should be able to be set to the output pins of the master. Now the question is, can MultiOutput work with a slave and a master I2S output, or will this cause clocking problems? It also needs MCLK. |
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Replies: 2 comments 7 replies
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I have never tried something like this. |
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I tried but I didn't have any luck. Does StreamCopy.copy() block or is it non-blocking? If it's blocking then that might be a problem. |
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I tried changing the order of the copies as well as the order of the out begins but it doesn't help. |
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Did you test with 1 single i2s to confirm that the basic functionality is working ? |
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Yes if I comment out the code for the second output it works fine. The core debug level was set to none. I'll try to change the debug level and see what happens. I'll also try just connecting wires to different pins instead of sharing pins. How would I set the I2S driver to async? |
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I used a jumper to connect the clock outputs to separate input pins and that makes it run. So sharing input and output pins is not possible (at least not easily). Still have to wire it to the amp in this configuration. |
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I'm not having any luck. I think I may have to write my own stream class for this level of control. |
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I used a jumper to connect the clock outputs to separate input pins and that makes it run. So sharing input and output pins is not possible (at least not easily). Still have to wire it to the amp in this configuration.