Flow chart:
Image 2: Software design flow
Input to output functionality:
1
Tap sensor and accelerometer signals detected from GPIO pins
2
Based on input, read sound file from SD card
3
Output sound file to speakers connected to FPGA
Algorithms/Tasks:
“task_which_note” simply polls for user input on the left glove through an infinite while
loop. It keeps track of the BASE_ADDRESS of the tactile sensors using IORD_PIO_DATA
(BASE_ADDR,0) on the GPIO pins. The tactile sensors, using the internal ~25kohm resistors on
the DE2, are wired to be active high. Therefore, once a 0 value is detected in the
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