Verilog HDL implementation of NeXT Sound Box ASIC

[yusukeito]

I added a microphone input feature into the RTL code.
The board can handle a 3.5mm, 2 or 3 pole microphone.
Now, we have all functions of the Sound Box on ossc

I work on miscellaneous things, menus, volumes, ...

[msch]

Great, congratulations!

[Rob Blessin Black Hole]

Hello Yusukeito:   This is an really cool project and awesome work.

There is a thread on NeXT Computer Enthusiasts on Facebook, you may have thoughts into if it is possible
to implement port / invent a solution that uses "the FPGA CPU from Amiga accelerator boards built around Xilinx FPGA and the entire line of 68k CPU ASICs (68000 to 68060) for Black hardware." 

https://www.facebook.com/groups/NeXTenthusiasts/ 

[Danyetman]

I would love to see an implementation of this that could allow color on mono cubes - like a replacement NextDimension board with modern output types!

The real thing has to communicate with the logic board, so I know it's technically possible.

[yusukeito]

Hello everyone.

This project is going forward little and little
Almost done for 1st version!



I mounted the board to a plate sizing to NeXT bus board and it has back side black panel.
A PCB with Raspi in the back is SCSI emulator and WiFi <> Ethernet bridge.
I have got working NeXT with WiFi.

I am going to publish SCSI emu board schematic which is using RASCSI later.



Installed this plate into the NeXT and placed HDMI display, USB mouse, Apple iMac speakers.

DXF of this plate and back side panel is found at https://github.com/novi/ossc_pcb/blob/next-soundbox/case-soundbox/nextcube-ext-card-soundbox-mount.dxf


Rob: Thanks. That is interesting but need more work to done that. I will check the group out!

Danyetman: Yes, We could get implemented a modern NeXTDimension board technically.
And we need more details about the dimension board, such as protocols.

[Rob Blessin Black Hole]

Hello Yusukeito: This absolutey amazing ! Best Regards Rob Blessin

[yusukeito]

Hello community,

I have built a cased Sound Box for the slab.
It uses same PCB board as the Cube.





The case is this one I posted earlier.

And I did processing with milling machine.
DXF is found at:
https://github.com/novi/ossc_pcb/blob/next-soundbox/case-soundbox/PF15-3-10D_20210228210419.dxf

So I am almost done with this project.

Functions

* HDMI output
* Stereo speaker output, HDMI Audio, 3.5mm Lineout
* Bultin Microphone and 3.5mm jack
* Non ADB or ADB keyboard and mouse support
* USB keyboard and mouse

TODO:

* SPDIF output, need RTL implementation

PCB(schematic) and its gerber files: https://github.com/novi/ossc_pcb
Case and plates for Cube DXFs: https://github.com/novi/ossc_pcb/tree/next-soundbox/case-soundbox
FPGA RTL codes: https://github.com/novi/ossc
STM32 MCU codes for USB keyboards: https://github.com/novi/ossc/tree/next-soundbox/soundbox-stm32-chibios

Acknowledgments: OSSC

[barcher174]

Fantastic work! I can't wait to try one.

[K-Town Computeum]

Hello @yusukeito.
Your project is really awesome! I only found out about it today.
Do you have any status update?

[ramalhais]

Hello @yusukeito.
Your project is really awesome! I only found out about it today.
Do you have any status update?

Thanks for digging this up. I needed this 2 months ago