Since I'm going to start designing the Gen0.5 boards in couple days, I wanted to go into a little detail on what I'm planning on doing and what the specific goals are for this board. So if there are changes desired I can get the concepts in before I get too far in the board design.
As I see it there are three goals for Gen0.5: 1; Get a working linux distro that can be put on the SD card that includes what of linux is needed, and Squeezelite. So that when Gen1 comes out it can do SOMETHING out of the box. 2; test out both USB ports configured as host ports, see what works, what doesn't and if the two ports behave the same or not. 3; get drivers working that can talk to the DAC chip and S/PDIF out. Drivers currently exist that can send out I2S and S/PDIF, we need to make sure they can work with our hardware, and what may be the most difficult part, handle an external MCLK source and select between clock frequencies for the different sample rate families. I'm planning on the Gen0.5 board being very simple and inexpensive, something that I can solder by hand. The board fab I use makes three copies of the board, so we will have three boards. I'm planning on the board having the following: EDM connector, Ethernet connector(gigabit), two full size USB type A connectors, DAC chip driving two RCA jacks, TOSLINK S/PDIF out, two oscillators with appropriate audio frequencies, clock mux, I2S and S/PDIF reclocking flops, clock driver for the module and voltage regulators. No wifi, no headphone. Just enough to test out the software for the three interfaces (USB, I2S to DAC and S/PDIF) I am NOT going to be doing any of the fancy very low noise ground plane schemes, super low noise regulators etc. This is not being designed to get the best sound, but to be a platform for initial software development. Gen1 will have those things. As mentioned I'm trying to keep this phase as simple as possible. All the rest of the development will take place in Gen1. I'm trying to prevent creeping featurism in this phase. Does anybody have any changes they would like to make to this, either goals or hardware? Thanks, John S. ------------------------------------------------------------------------ JohnSwenson's Profile: http://forums.slimdevices.com/member.php?userid=5974 View this thread: http://forums.slimdevices.com/showthread.php?t=97881 _______________________________________________ discuss mailing list [email protected] http://lists.slimdevices.com/mailman/listinfo/discuss
