It is currently Thu Dec 14, 2017 9:26 pm

All times are UTC - 7 hours





Post new topic Reply to topic  [ 19 posts ]  Go to page Previous  1, 2
Author Message
PostPosted: Thu Nov 23, 2017 2:27 pm 
Offline

Joined: Tue May 28, 2013 5:49 am
Posts: 928
Location: Sweden
Gilbert wrote:
it may even be possible that if you modify the console by changing the hardwired P2 pad to some other controllers the START button may work too.
Yeah probably it's just the shift register that spits out zeroes instead of the START and SELECT data in the hardwired controller II when reading it. If you somehow connect a controller I (or a NES controller) on the PCB connector START and SELECT will probably work like on an AV Famicom or NES. It would be interesting to add a microphone to a controller I and a PCB connector from a controller II to get a Famicom that has both a microphone and START/SELECT buttons.


Top
 Profile  
 
PostPosted: Thu Nov 23, 2017 3:32 pm 
Offline
User avatar

Joined: Sun Jan 22, 2012 12:03 pm
Posts: 5898
Location: Canada
Yes the Famicom controller 2 has the same 4021 8-bit shift register as the others, it just has the pins for SELECT and START hard wired to 5V. You could relatively easily reconnect those to two new buttons.

I don't know what you mean about "add a microphone to controller 1", though. There's only 1 data line that's ever listened to for the mic (D2 on $4016), so having a second microphone won't be able to do anything. You'd also have to replace its cord with one that has more wires to accomodate the extra line. (The mic is a dedicated line, it's not part of the serial input from D0.)


Top
 Profile  
 
PostPosted: Thu Nov 23, 2017 4:45 pm 
Offline

Joined: Tue May 28, 2013 5:49 am
Posts: 928
Location: Sweden
I don't mean add another microphone, the goal is to add START and SELECT buttons on the second controller while keeping the microphone.
I mean to use a spare controller I or NES controller and add a microphone to it and connect it instead of controller II, not instead of controller I. I figured it would be easier to add a microphone to a controller than to add good START and SELECT buttons to a controller II. You would need to steal the connector from a controller II in that case though (a controller I connector won't fit).


Top
 Profile  
 
PostPosted: Thu Nov 23, 2017 5:05 pm 
Offline
User avatar

Joined: Sun Jan 22, 2012 12:03 pm
Posts: 5898
Location: Canada
Ah, yes that makes sense.


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 19 posts ]  Go to page Previous  1, 2

All times are UTC - 7 hours


Who is online

Users browsing this forum: No registered users and 10 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Group