• I Spoke too soon ! heat !

    ben biles • an hour ago • 0 comments

    the weather got warmer here in Japan and now the LDO overheats !

    I am now running the board off a bench supply after blowing 2 LDO's ! 

    I think the answer is to increase board size to 100x100mm for more ground plane and possible

    add the power supply on a daughter card. were running 2 x XMOS chips and they get hot.

    I will stress the DCDC convertor with a load and check its not over volt the LDO under dramatic

     load switching but I think its just heat !

    Making a PCB as small as possible is not always the best idea , heat is a factor !

  • detected in HIVE avb software and working !

    ben biles • 12/12/2025 at 01:40 • 0 comments

    one of the 1st projects I designed plugged in and it seams to just work.

    the XMOS USB populates as a multichannel sound card in the DAW. 

    So for I only tried Ableton Live and it seams to work fine.

    I am now adapting the code in BBBOX field recorder so that it can populate / connect channels automagically in PTP mode without the need for an AVB router.

    This should result in sub 2mS USB networked audio interface to the BBbox field recorder.

    Although the interface can network 32 in x 32 out channels the bbbox mixer at the moment is only setup on 8 x 8 TDM SD lines to the xmos AVB chip. I will try and increase those TDM lines to 16 x 16.

    DSP chip TDM lines are only 2cm or so , so it could well work