Zemmix Neo project in Korea. (OCM based Zemmix with CNCed case)

Por boss_msx

Champion (415)

09-09-2013, 11:52

Hi Luppie, could you email a picture or make one for me, for a fee?

Por Ivan

Ascended (9333)

09-09-2013, 13:01

boss_msx wrote:

Hi Luppie, could you email a picture or make one for me, for a fee?

It would be a great idea to make a small batch of these sound attenuators. It is just a matter of choosing the right cinch connector adapter to house that small circuitry.

Por vanfanel

Champion (446)

09-09-2013, 14:35

I don't have a Zemmix Neo Lite anymore, but why don't you guys talk to KdL so he includes a core fix on the 1ChipMSX core for the Zemmix Neo Lite so these high freqs are cut off without additional hardware?

Por luppie

Paladin (869)

09-09-2013, 16:15

boss_msx wrote:

Hi Luppie, could you email a picture or make one for me, for a fee?

No problem, I'll have to look for some more connectors, I do have the parts at home.
Send me an email with your adress details.

Por Ivan

Ascended (9333)

09-09-2013, 21:58

vanfanel wrote:

I don't have a Zemmix Neo Lite anymore, but why don't you guys talk to KdL so he includes a core fix on the 1ChipMSX core for the Zemmix Neo Lite so these high freqs are cut off without additional hardware?

Indeed, it would be the ideal solution. Is it feasible with FPGA?

Por KdL

Paragon (1450)

11-09-2013, 00:04

Hello everyone!

This problem of the "peeeee" sound is a bug (not serious) on R111 and R125 resistor values of Zemmix Neo PCB.
I think the correct value should be equal to R122 because now it compromise the correct luminance of all LEDs.

To solved these two problem (the "peeeee" sound and the wrong luminance), you can update the Zemmix Neo with this PLD!

WARNING: UPDATE AT YOUR OWN RISK!
http://www.webalice.it/gnogni/ocm/temp/pld_zemmix_leds_ok.7z

If you want run a test, you can temporary remove the "peeee" sound using this command:
A:\>SETSMART -22

Por boss_msx

Champion (415)

11-09-2013, 00:08

Thats really awesome!! Thank you so much. I'm going to try this out tomorrow evening and let you know the results!

Por MSX4ever

Master (251)

11-09-2013, 10:04

Hello,

Thanks Kdl !!
Is it also possible that you make this update for the SD card
in stead of the PLD version, concerns the Zemmix Neo.

MSX4ever.

Por mygodess

Champion (275)

11-09-2013, 10:19

@MSX4ever You can upload that file with pldload.com..
Just copy msx-dos files and pldload.com into sd card and boot with sd in Zemmix Neo.
When the prompt comes, you can type next line and wait around 30 secs..
pldload emsx_top.pld

Por KdL

Paragon (1450)

11-09-2013, 10:47

Alternatively you can use PLDFLASH.COM from OCM-EXTRA Pack v1.6.1

A:\>PLDFLASH EMSX_TOP.PLD