One chip MSX improvement project

Página 112/118
105 | 106 | 107 | 108 | 109 | 110 | 111 | | 113 | 114 | 115 | 116 | 117

Por lintweaker

Champion (417)

imagem de lintweaker

15-10-2020, 18:18

Received my DE0-CV and got HRA!'s version up and running (MSX2 and Turbo-R). Very cool.
Somehow the IPL will not boot from the uSD it seems, have to look into that.

Busy creating a 'DE0CM' (work in progress). Almost finished, mostly getting the PCB to the correct size.

Por HRA!

Champion (271)

imagem de HRA!

18-10-2020, 10:36

lintweaker wrote:

Received my DE0-CV and got HRA!'s version up and running (MSX2 and Turbo-R). Very cool.
Somehow the IPL will not boot from the uSD it seems, have to look into that.

Busy creating a 'DE0CM' (work in progress). Almost finished, mostly getting the PCB to the correct size.

Very nice!
My OCM改 support MSX-MIDI (currently send only). Therefore, we have added a MIDI port to DEOCM. If you're building a new board, it's best to have a MIDI port as well.

Por lintweaker

Champion (417)

imagem de lintweaker

18-10-2020, 11:12

HRA! wrote:

Very nice!
My OCM改 support MSX-MIDI (currently send only). Therefore, we have added a MIDI port to DEOCM. If you're building a new board, it's best to have a MIDI port as well.

Thanks! I am planning on integrating MIDI out using a 3.5mm TRS connector (type A, now a MIDI 2.0 standard).
Now that I have the DE0-CV I used it to debug my Cyclone v breakout board and also got your OCM working on it. It's a bit more difficult as it does not have the dip switches currently.
Looking forward to new OCM updates Smile

Por lintweaker

Champion (417)

imagem de lintweaker

18-10-2020, 11:28

My Cyclone V breakout (v1):

There are some extra goodies under the FPGA board (SRAM, Flash and SPI flash). Which will probably be not on the next revision where the joystick ports and a MSX cartridge port will be added and audio out integrated. Now it uses a I2S audio solution.

Por lintweaker

Champion (417)

imagem de lintweaker

22-11-2020, 15:31

My MSX breakout for the DE0-CV FPGA board is ready for testing!
First tests show sound is working Smile

Por sdsnatcher73

Prophet (2363)

imagem de sdsnatcher73

22-11-2020, 20:19

Wow lintweaker, nice development!

Por Vampier

Prophet (2386)

imagem de Vampier

22-11-2020, 22:40

I wish someone made something like this for the de10nano core (MiSTer)

Por Sebbeug

Champion (322)

imagem de Sebbeug

23-11-2020, 08:59

Nice.
Is there a 5v to 12v converter on your board ? (as DEOCM)

Por lintweaker

Champion (417)

imagem de lintweaker

23-11-2020, 12:39

Sebbeug wrote:

Nice.
Is there a 5v to 12v converter on your board ? (as DEOCM)

Thanks. No, there is no -12 and +12V in this revision. Maybe I'll add it in a next revision.

Por ducasp

Champion (466)

imagem de ducasp

23-11-2020, 15:02

lintweaker wrote:
Sebbeug wrote:

Nice.
Is there a 5v to 12v converter on your board ? (as DEOCM)

Thanks. No, there is no -12 and +12V in this revision. Maybe I'll add it in a next revision.

I would consider leaving this as optional or being able to disable it through a jumper to turn it off physically.

Most cartridges and interfaces do not use this voltage, and those boost DC/DC converters tend to add noise to power lines.

Página 112/118
105 | 106 | 107 | 108 | 109 | 110 | 111 | | 113 | 114 | 115 | 116 | 117