As scheduled, work was done on sound production this week. The objective was to read data from the SD to get buffered data and write to the DAC simultaneously using DMA with previously buffered data. A basic implementation was achieved this week, but we have been plagued by bugs. Notably the DMA transfer occurs twice for some unknown reason.

I am definitely behind schedule as sound production was supposed to be done this week. Hopefully a breakthrough can be made within the next couple of days.

DAC output on top and SD card output on bottom. After the first cycle data repeats twice.