MSX USB

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Van S0urceror

Master (187)

afbeelding van S0urceror

27-03-2020, 07:46

yes, I use OPF to flash my modified Nextor.

Van lintweaker

Champion (415)

afbeelding van lintweaker

29-03-2020, 09:40

S0urceror wrote:

yes, I use OPF to flash my modified Nextor.

Great! Can you flash an empty flashchip from MSX or do we need to start with a pre-programmed one?

I have some CHS376S chips on order..I'll finish my first PCB this week.

Van S0urceror

Master (187)

afbeelding van S0urceror

29-03-2020, 20:50

OPF clears and writes from MSX. I boot MSX-DOS from floppy. Write Nextor from it and press reset. If all goes well Nextor boots up and scans for an inserted USB flash drive.

I’ll put up a page with all the binaries to get going more quickly. Plus some instructions.

Btw. I realized that my design uses the SCC mapper. My Nextor image is adapted to handle that. If you prefer Ascii8/16 please let me know. Also good to have a switch that disables the rom during startup to prevent auto start. You cannot flash over the currently running image.

PS. If you have some pictures of your work I would love to see them Smile

Van lintweaker

Champion (415)

afbeelding van lintweaker

30-03-2020, 09:23

I figured you are using the SCC mapper Smile I do not mind using it. We can change to Ascii8/16 later. I'll consider my first version a 'testing' version.

Van Wolverine_nl

Paragon (1158)

afbeelding van Wolverine_nl

30-03-2020, 09:50

Hi, is this all going into the same thing as the RookieDrive?

Van lintweaker

Champion (415)

afbeelding van lintweaker

30-03-2020, 18:21

First version of my PCB will look something like:

Van lintweaker

Champion (415)

afbeelding van lintweaker

06-04-2020, 13:55

@S0urceror,
Got my first bunch of CHS376S chips! PCBs should hopefully follow soon.
Did you manage to prep the needed tools and binaries?

BTW Is it easy to also support the SD next to USB?

Van popolon_

Master (163)

afbeelding van popolon_

06-04-2020, 21:12

Why wuold you put sd card interface into this cartridge, when this is for usb interface? And in rookiedrive you can use usb sd card reader.

Van ducasp

Champion (461)

afbeelding van ducasp

06-04-2020, 21:20

popolon_ wrote:

Why wuold you put sd card interface into this cartridge, when this is for usb interface? And in rookiedrive you can use usb sd card reader.

Well, you could save the USB port for a second drive, another function, etc without needing a hub. It won't hurt, for sure. Wink

Van lintweaker

Champion (415)

afbeelding van lintweaker

07-04-2020, 09:11

popolon_ wrote:

Why wuold you put sd card interface into this cartridge, when this is for usb interface? And in rookiedrive you can use usb sd card reader.

The chip supports both USB and SD, so be able to utilize both is a nice option to have. The PCB is prepared for use with SD. I can decide whether to populate the socket or not.

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