Difference between revisions of "StrichLux/IO-DMX"

Revision as of 21:26, 3 April 2012

The StrichLux IO-DMX module will provide one universe of DMX for the StrichLux system, and can be used as either an input module or an output module.

2012-03-17: Schematic complete and checklist checked, starting and finished board layout/routing, CAM done, submitted to Laen for PCB manufacturing. Parts still need to be ordered.
2012-03-15: BOM is complete, schematic almost complete.
2012-03-14: Started schematizing/putting BOM together.

<graph>graph {output: svg;}[ SPI Hardcore ] <-- Wishbone --> [ Module Supervisor Softcore ] <-- Wishbone --> [ DMX Softcore ]</graph>

State INIT
- Send READ command to Core Board w/ address 0
- Enable DMX Transmission
- State change to DMXWAIT
State DMXWAIT
- Wait for DMX "ready for channel data" interrupt
State SPIREAD
- Read 1 byte of data from Core Board
- Send 1 byte of data to DMX output via Wishbone
- Increment channel counter
- State change to DMXWAIT if counter == 511
- State change to IPDWAIT if not
State IPDWAIT
- Wait for inter-packet delay time
- State change to INIT

@@ Line 10: / Line 10: @@
 * Can be used as an input or output module.
 * Based around the Lattice MachXO2-256 CPLD
+== Architecture ==
+<graph>graph {output: svg;}[ SPI Hardcore ] <-- Wishbone --> [ Module Supervisor Softcore ] <-- Wishbone --> [ DMX Softcore ]</graph>
+== Logic ==
+* State INIT
+** Send READ command to Core Board w/ address 0
+** Enable DMX Transmission
+** State change to DMXWAIT
+* State DMXWAIT
+** Wait for DMX "ready for channel data" interrupt
+* State SPIREAD
+** Read 1 byte of data from Core Board
+** Send 1 byte of data to DMX output via Wishbone
+** Increment channel counter
+** State change to DMXWAIT if counter == 511
+** State change to IPDWAIT if not
+* State IPDWAIT
+** Wait for inter-packet delay time
+** State change to INIT
 [[Category:Current Projects]]
 [[Category:Status/Waiting for Time]]