Hi,
I just got HiFive 1 board and set up the Arduino IDE. I want to record audio with this board and port some audio processing algorithms to it. My question is: what Arduino shields should I buy and where can I start the software program? Pls advise. Thanks!
BTW, I am new to Arduino so I’m not sure whether it is the suitable platform for me to port algorithms.
I just want to test it, so the limitation of RAM does no matter. @brucehoult So do you know any shields which can do that? I can use an I2S microphone or I can find a shield which converts analog signals into digital and output those signals with I2S interface. If it’s possible for HiFive1 to have an I2S driver, then things will be done.
I can google, but I’ve never used a shield with that before.
I2S has a clock signal, but the data runs at a highish multiple of the clock speed, of several Mbps depending on your audio sample size and Hz, so timing is pretty critical. Should not be a problem if you can write code that just polls the input pins and little else. Actually, you could probably manage it with a timer interrupt ok too.
Things would be a lot easier if you had a shield that added a little bit of FIFO buffer and presented an SPI slave interface to the HiFive1.