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  1. 1

    audio DAC for Teensy 4 - what one? MCP4725?

    I have a MCP4725 wired up to a T4 on pins 16 and 17 and it "works" but I may have chosen the wrong thing. What I want to do is have non-blocking way to play short (1 sec or so) audio samples. I was thinking I could use DMA over I2C but apparently there is no library to do that on the T4 (did not...
  2. 1

    Teensy 4 - SPI bus > 38mhz possible?

    It looks like 38mhz is what the spi bus tops out at on T4, is it possible to go higher? I saw other posts talking about T3 F_BUS /2 = SPI clock, is it the same in T4? edit: looks like it is f_bus /2 = max spi clock so can you increase the f_bus w/o overclocking the cpu or is that the only way?
  3. 1

    Teensy 4.0 - what 9341 library to use?

    I am trying to figure out the pluses and minuses of the 3 main 9341 libraries that I know of: ILI9341_t3 ILI9341_t3DMA and the ILI9341_t3n I have a single tft I will put on SPI0, this particular TFT has no CS and it will be the only device on that bus for obvious reasons. I don't have any...
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