Hey guys,
mu first post here.
I want to share with you a design I'm working on for the past month.
It's an opensource board based on STM32l476 with a PCM3070i.
This provide a 80MHz Cortex-M4 processor and a 192ksps codec with integrated DSPs. For now the schematics are done(the first review) and I'll start the layout.
Any toughts, sugestions and criticism are welcome.
The repository:
https://github.com/plugfects/littlehacker
The WIP is in rev0 branch.
Well I generally like to be encouraging. How is this different than the Hoxton Owl board? https://hoxtonowl.com/
Also, I saw a program "Audio Weaver" that claims to be compatible with some ST-Micro dev boards. Would be great if that could be made to work on your board. I think writing code for effects (at least, doing it more than once) is almost as painful as soldering!
http://www.dspconcepts.com/products/audio-weaver
Hi Larry,
Thinking about hardware Hoxton Owl have a little more powerful microcontroller specification and little less power processing in the codec.
In concept the boards have some difference. I plan to focus in the moments when you're playing at home and studying. To me this is a problem since I'm a father of 2 and the time that I can play is when my kids are probably sleeping. So in the future versions of this board it will be more like Vox Amplug series and less like a "traditional stmop box.
I'm also targeting that this board will cost less ( US$ 49) but I can't promise even that I'll be able to produce it to sell. My first idea was to have an FPGA on this board ( I'm a professional HDL designer for the last 7 years) but avoid it for now to meet the target price. Given that I live in Brazil and even this cost is prohibitive here(10x to convert from US$ to R$ and US$ 49 is half of our minimum wage).
Also my design approach is friendly for modifications :) The whole achematics are provided in a modular approach to maek easy to reuse trough the libraries plugmodules/pluglib.
From software perspective I was not aware of Audio Weaver, nice software. I'll take a look when the time comes.
I'm planning to have something similar to gnuradio gru interface, and also a similar processing module scheme, but this is something for the future :)