E370 R&D begins today! (and what the E352 is not) & more!
Today we started on the E370 pc board/schematic parts ordering for "medium lead time" (4-6 weeks) parts. Leveraging greatly from the E352 R&D cycle, I hope to only need 2 pc board revisions to release to production (the E352 took 3).
I should have a 'real' E370 pc board running the first test code in 3 weeks. I'll post an update when ready to 'reveal' it.
I now wish to discuss what the E352 is, in relation to the E370. I keep seeing posts on the Facebook Groups (were I post the E352 updates) "grumbling", for lack of a better word, the in effect "the E370 needs to have ALL the cool E352 features!"
The E352 is in NO WAY, SHAPE OR FORM a 'baby E370'. Not even close. It was SPECIFICALLY DESIGNED to replace the old, expensive-to-manufacturer, E340 Cloud Generator and E350 Morphing Terrarium.
Like I stated in prior messeges, the E352 was in R&D with a different CPU in Oct 2016, 5 MONTHS BEFORE the E370 campaign launched. It was placed on hold because ST Micro, the ARM supplier announced a new part, the F722, that was 2x faster for about the same price as the 'F405 that was in the original plans. And, since the 'F722 was code compatible with the larger 'F746, we stopped and said: "HEY! Let's use the '722 and then make a Quad VCO using the 'F746 with Kickstarter!
Note I said "Quad VCO", not a "Quad E352".
And that's what we did.
But please understand, the 4 independent audio streams in the E370, coupled with Chord Mode AND TZFM sufficiently distant it from the 1-channel E352.
These 4 audio streams must have priority over fancy screen savers or other visual pyrotechnics we are able to stick in the E352, because we happened to have extra bandwidth in the E352 (so why NOT use it?).
IF, and we will not know for 8 weeks, IF there is extra DSP bandwitdh after processing 4 audio streams we will most certainly start adding stuff from the E352 into the E370. Of course, there are games that need to be played with selecting which of the 4 VCOs you are "looking at".
But as far as the audio algorithms go, they will be added 1 by 1 until the DSP simply "runs out of gas" at 216MHz (the E352 is running 158MHz).
Lastly: we have a 'teaser video' of the free, cross-platform WaveEdit program. Check it out!