/spdif-to-i2s

Primary LanguageVerilog

S/PDIF to I2S on iCE40UP5K

Convert S/PDIF to I2S in verilog. Build with yosys + nextpnr. It's a toy project without extensive testing.

Testing Hardware
                                +------------+
 TOSLINK   +---------+  S/PDIF  | UPduino v3 |
---------> | PLR-135 | -------->|23        47| LRCLK       +-----------+
           +---------+          |          26| BCLK -----> | MAX98357A | ---> Speaker
                                |          27| DATA        +-----------+
                                +------------+

Use about 3mA for gateware when running at 38.4MHz

TODO

  • Add reset to clkdiv25, i2s_tx, spdif_decode
  • Generate global reset