Two drives for PC8801

HxC Floppy Emulator on PC88 / PC98 and compatible support
Post Reply
arjen
Posts: 2
Joined: Tue Feb 01, 2011 3:32 am

Two drives for PC8801

Post by arjen »

Hi

When connecting the HxC to the PC8801 I was not able to use both the A and B drive. The PC8801 has two connectors, one for the A drive and one for the B drive. The solution was to connect the HxC to the drive A connector and run one wire from the B drive pin 10 (motor A enable) to the B drive pins on the HxC.

Arjen
Attachments
Computer side
Computer side
IMG_6117_1.JPG (27 KiB) Viewed 25548 times
HxC side
HxC side
IMG_6116_2.JPG (20.14 KiB) Viewed 25548 times
Jeff
Site Admin
Posts: 8184
Joined: Fri Oct 20, 2006 12:12 am
Location: Paris
Contact:

Re: Two drives for PC8801

Post by Jeff »

arjen wrote:Hi

When connecting the HxC to the PC8801 I was not able to use both the A and B drive. The PC8801 has two connectors, one for the A drive and one for the B drive. The solution was to connect the HxC to the drive A connector and run one wire from the B drive pin 10 (motor A enable) to the B drive pins on the HxC.

Arjen
Yes Namida88 have reported this here too :
http://torlus.com/floppy/forum/viewtopi ... 3108#p3108

The two floppy disk connector are in fact the same floppy disk bus.
arjen
Posts: 2
Joined: Tue Feb 01, 2011 3:32 am

Re: Two drives for PC8801

Post by arjen »

Hi Jeff

Sorry I did not find that... The search function does not work so well in this forum. If i search for PC88 or PC-88 or CP/M or CPM I can not get any results...

Arjen
Jeff
Site Admin
Posts: 8184
Joined: Fri Oct 20, 2006 12:12 am
Location: Paris
Contact:

Re: Two drives for PC8801

Post by Jeff »

arjen wrote:Hi Jeff

Sorry I did not find that... The search function does not work so well in this forum. If i search for PC88 or PC-88 or CP/M or CPM I can not get any results...

Arjen
No problem , yours pictures are good. I just point the Namida88 post to associate this 2 thread.

For the search problem, i see this. Probably a problem during the phpBB migration...
Namida88
Posts: 22
Joined: Sat May 29, 2010 3:52 am
Location: Tokyo, Japan

Re: Two drives for PC8801

Post by Namida88 »

Yes, nice pictures.

Are you using a simple PC-8801 ? (first generation)
zolli
Posts: 2
Joined: Sun Sep 03, 2017 8:17 pm

Re: Two drives for PC8801

Post by zolli »

Hi,

I have a revision F SD HxC from Lotharek. I'm trying to put this into a PC-8801 MA but the revision F HxC has DIP switches instead of jumpers.

Any idea how I should connect Drive B pin 10 to the HxC?

Thanks.
Jeff
Site Admin
Posts: 8184
Joined: Fri Oct 20, 2006 12:12 am
Location: Paris
Contact:

Re: Two drives for PC8801

Post by Jeff »

to one side of the drive b switches block.
zolli
Posts: 2
Joined: Sun Sep 03, 2017 8:17 pm

Re: Two drives for PC8801

Post by zolli »

Jeff wrote: Fri Sep 08, 2017 8:50 am to one side of the drive b switches block.
Please excuse the newbie question, but does it matter which side or which pin?
Jeff
Site Admin
Posts: 8184
Joined: Fri Oct 20, 2006 12:12 am
Location: Paris
Contact:

Re: Two drives for PC8801

Post by Jeff »

zolli wrote: Sat Sep 09, 2017 6:07 am
Jeff wrote: Fri Sep 08, 2017 8:50 am to one side of the drive b switches block.
Please excuse the newbie question, but does it matter which side or which pin?
Any one of the 4 pins (drive B), the side turned toward the board border.
darkwitchclaire
Posts: 1
Joined: Tue Feb 13, 2024 6:18 am

Re: Two drives for PC8801

Post by darkwitchclaire »

Hi

I recently bought a PC-8801FH and I'd like to use a single HxC emulator for both drives but I'm confused by this thread. Would the HxC Max work for this, and if so how would I do it since it only has the 34 pin connector and DIP switches? Otherwise I'll look into one of the other HxC models.
Sickboy911
Posts: 1
Joined: Sat Sep 21, 2024 12:15 am

Re: Two drives for PC8801

Post by Sickboy911 »

Hi guys.

I use a HxC MAX for my PC-8801 MKII SR with 2 drives emulation and works perfectly.
I use also a special connector that I bought in Yahoo Japan Auctions.
The DIP SWITCHES configuration of the HXC MAX must be: 1 & 7 ON, the rest off.
You can find more information on the following links
Info: http://www.amy.hi-ho.ne.jp/nakajima-jr/ ... cial10.htm
Shop: http://www.amy.hi-ho.ne.jp/nakajima-jr/ ... .htm#fdemu

Hope this help.
Attachments
Connector.JPG
Connector.JPG (49.84 KiB) Viewed 1539 times
Post Reply