SROUTE
From Hackstrich
SROUTE is a digital audio distribution router. More details coming later on.
Project Status
- 2013-07-21 - Receive termination complete.
- 2013-07-20 - RS232 and +5V rail implemented, still need to finish a bit of cleanup, add receive termination, test points, and any remaining diagnostic LEDs.
- 2013-07-19 - Schematic thought to be feature-complete, Andrew reviewed. Remaining to be done: Receive termination on channels, RS232 port, +5V for KSEND, test points, diagnostic LEDs.
- 2013-07-13 - Schematic/BOM work continues. Completed line driver/receiver, routing fabric, power, and logic, need to finish UI.
- 2013-06-30 - Started putting schematic together.
- 2013-06-29 - Initial design ideas.
System Architecture
- 12 KSEND channels
- 4 busses to chain SROUTE boards
- 1 KSEND module on-board (optionally) to allow for channel monitoring
- USB connectivity to PC for control (and a second connection to the onboard KSEND for audio)
UI
- G/Y LED for each port
- 132x32 graphical LCD for status displays
- Pushbutton to scroll through screens
- RGB LED for "is everything okay" indication
- KSEND jacks come out the front for line in/monitor
- Pushbutton to turn on/off monitoring
- LED to indicate if monitoring is on
Microcontroller Requirements
- USB for control
- SPI for communicating with KSEND
- 4 * 16 = 64 I/Os to control muxes
- ~6 pins to control display