I would like to verify some system function and need to make a daughter card which include nor flash and sram chip, and I am considering to use MPS3 as the main platform instead of my MPS2+ board.

Total 90  I/O port (io standard is 1.8V) are required for…

Such as the title, I have a board of MPS3

I want to try to use the microphone to input the sound, then output through the speaker.

But I have been unable to find a way. I hope someone can point me out. Thank you.