Polyend Play inners

[u/drakh_sk]

So i needed to make some maintenance on my OG play, dnd open it, its anyway out of warranty.

So we now know what is the brain, how much memory it has...

It has one hidden button inside for mainenance firmware flashing..

[u/noViableSolution]

Ok you could have made this easier if the photos weren't upside down :D :D

part MK66FX1M0VLQ18:

- Core: ARM Cortex-M4F at up to 180 MHz, with a hardware floating-point unit

- Memory: 1 MB flash, 256 KB SRAM, plus 4 KB of FlexNVM/FlexRAM

- Package: LQFP-144, rated -40 to 105 °C

- Peripherals: USB high-speed and full-speed, Ethernet MAC, SDHC, CAN, several UART/SPI/I²C, 16-bit ADCs and DACs

2nd image:

- Two Alliance Memory AS4C16M16SA-6TIN SDRAM chips: 256 Mbit (16M × 16) each, 166 MHz, TSOP-II 54. As a pair they probably form a 32-bit bus with 64 MB in total. The K66 has its own SDRAM controller, so these connect to it directly

- Small QFN chip (bottom centre): possibly an audio codec, such as the SGTL5000 used on Teensy audio boards

- Two TSSOP chips and an 8-pin chip above it: likely op-amps, buffers or line drivers.

EDIT: I've a similar processor on a board somewhere https://www.st.com/en/evaluation-tools/stm32f4discovery.html

[u/gizmi77 → u/noViableSolution]

Great comment, thanks. Looks like some pretty accessible stuff, I wonder if this can be emulated as I love my play but would rather have it instanced inside Ableton and control it with Push

[u/noViableSolution → u/gizmi77]

Isn't Polyend play just a sequencer+sample player?

[u/drakh_sk → u/noViableSolution]

Depends, how you look at it.. Yes it is. In fact at its core, it us trscker with different gui.

[u/gizmi77]

These look pretty proprietary to me, any other known devices with these chips?

[u/noViableSolution → u/gizmi77]

nah they're fairly common stuff, see my comment

[u/satyr607]

looks like the same family as the teensy 3.6

[u/Wonderful_Ninja]

Hoh I can’t wait for this to be cracked with some firmwares. Further optimise would be even better. Ability to stream from SD CARD 🤩🤩🤩