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by JimDrew
Thu Feb 01, 2018 2:33 am
Forum: MiSTer
Topic: Buy / Sell MiSTer Expansion Boards
Replies: 103
Views: 13119

Re: Buy / Sell MiSTer Expansion Boards

I have to agree that support for a Jamma interface board would be a REALLY great thing. At that point we could put MiSTer in an arcade cabinet and use real arcade sticks, buttons, etc.
by JimDrew
Wed Jan 17, 2018 6:05 pm
Forum: MiSTer
Topic: Buy / Sell MiSTer Expansion Boards
Replies: 103
Views: 13119

Re: Buy / Sell MiSTer Expansion Boards

Shipping cost depends where you live. It's $47 for me to receive a batch of boards! That should be a big batch fir this price. No, that is the cost of a .5Kg package to the U.S. via DHL. I have 100 of the slim version RAM boards now, and I am building them currently. Unfortunately, the trimming mac...
by JimDrew
Sun Jan 14, 2018 6:13 am
Forum: MiSTer
Topic: Buy / Sell MiSTer Expansion Boards
Replies: 103
Views: 13119

Re: Buy / Sell MiSTer Expansion Boards

Shipping cost depends where you live. It's $47 for me to receive a batch of boards!
by JimDrew
Sat Dec 30, 2017 9:46 pm
Forum: Hardware
Topic: WIFI for all ataris over serial!
Replies: 84
Views: 11866

Re: WIFI for all ataris over serial!

What terminal software is recommended? I want to try my Atari ST's out with the WiModem232.
by JimDrew
Thu Dec 28, 2017 9:24 pm
Forum: MiSTer
Topic: Buy / Sell MiSTer Expansion Boards
Replies: 103
Views: 13119

Re: Buy / Sell MiSTer Expansion Boards

If you click on the "notify me when back in stock" link, you will automatically get an email when they are available.
by JimDrew
Thu Dec 28, 2017 4:28 am
Forum: MiSTer
Topic: Buy / Sell MiSTer Expansion Boards
Replies: 103
Views: 13119

Re: Buy / Sell MiSTer Expansion Boards

I expect to have the new SDRAM boards the 1st week of January. I sold everything I made.
by JimDrew
Thu Dec 21, 2017 2:46 am
Forum: MiSTer
Topic: Vectrex core
Replies: 17
Views: 1079

Re: Vectrex core

Is there any information on how to use this core? Do the ROMs need any certain extension? Do they go in the same folder as the core itself? Are there any limitations?

I always liked the Vectrex! Thanks!
by JimDrew
Mon Dec 18, 2017 6:10 am
Forum: MiSTer
Topic: DE-10 nano temperature issues
Replies: 41
Views: 2327

Re: DE-10 nano temperature issues

Using the heatsink and fan I sell, the max temperature is ~35C (dead center of the bottom of the board) and the CPU/heatsink is ~26C, and that is after 8 hours of being on. I don't think heat is every going to be an issue when you using the proper heat sink and fan.
by JimDrew
Sun Dec 17, 2017 6:45 am
Forum: MiSTer
Topic: SDRAM board
Replies: 80
Views: 5531

Re: SDRAM board

I can mass produce the super slim version. I have a machine for trimming connector pins. I am just about sold out of the original version.
by JimDrew
Sat Dec 16, 2017 5:35 am
Forum: MiSTer
Topic: SDRAM board
Replies: 80
Views: 5531

Re: SDRAM board

The SDRAM is always high once the board is powered up? Maybe there is some type of impedance issue that is resolved with a 4.7K resistor to ground on CKE (pin 37)? This was something that Mike mentioned that Replay hardware does (and it does according to the schematic), so I decided to try it.
by JimDrew
Fri Dec 15, 2017 8:41 pm
Forum: MiSTer
Topic: Joystick testing thread
Replies: 38
Views: 2431

Re: Joystick testing thread

If you want to see one yourself I would be happy to send you one.
by JimDrew
Fri Dec 15, 2017 5:30 pm
Forum: MiSTer
Topic: Joystick testing thread
Replies: 38
Views: 2431

Re: Joystick testing thread

Well, deleting the config made no difference. However, I was able to figure out a solution. During the joystick setup I can press and hold each button for whatever length of time I like with my USB joystick that looks like a PS3 controller. I can also do the same for the INEXT controller, EXCEPT for...
by JimDrew
Fri Dec 15, 2017 5:25 pm
Forum: MiSTer
Topic: SDRAM board
Replies: 80
Views: 5531

Re: SDRAM board

To prevent overshoot, and increase the speed of the line going low. Doing this, modules that don't pass at 150MHz always pass at 150Mhz and most pass at 166MHz (vertical design).
by JimDrew
Fri Dec 15, 2017 4:59 pm
Forum: MiSTer
Topic: SDRAM board
Replies: 80
Views: 5531

Re: SDRAM board

Did you add a 4.7K pull-down to the CKE line in that design?
by JimDrew
Fri Dec 15, 2017 4:32 am
Forum: MiSTer
Topic: Buy / Sell MiSTer Expansion Boards
Replies: 103
Views: 13119

Re: Buy / Sell MiSTer Expansion Boards

by JimDrew
Sun Dec 10, 2017 6:35 pm
Forum: MiSTer
Topic: Joystick testing thread
Replies: 38
Views: 2431

Re: Joystick testing thread

I will try deleting the config and see if that works. If it doesn't, then you can PM me your address and I can send you a set of these INEXT controllers.
by JimDrew
Sun Dec 10, 2017 6:38 am
Forum: MiSTer
Topic: Joystick testing thread
Replies: 38
Views: 2431

Re: Joystick testing thread

I tried power and unpowered, same results. Like I said, the menu works perfectly. You can go to the joystick setup and it recognizes ALL of the buttons, including UP. NONE of the cores (arcade, console, computer) recognize the UP button when you do the joystick setup from within the core. The INEXT ...
by JimDrew
Sun Dec 10, 2017 6:36 am
Forum: MiSTer
Topic: SDRAM board
Replies: 80
Views: 5531

Re: SDRAM board

Are there extra pins available on the bus that we could use to enable/tri-state a buffer chips so that the RAMs could be isolated and share the bus?
by JimDrew
Sun Dec 10, 2017 12:52 am
Forum: MiSTer
Topic: Joystick testing thread
Replies: 38
Views: 2431

Re: Joystick testing thread

Yep! I have a PS3 looking controller from China that works perfectly. It's just these INEXT controllers that don't work with any of the cores, except the menu.rpf.
by JimDrew
Sun Dec 10, 2017 12:50 am
Forum: MiSTer
Topic: SDRAM board
Replies: 80
Views: 5531

Re: SDRAM board

So, should a 512KB or 2MB SRAM board (like the SDRAM board) be something that should be produced?
by JimDrew
Sat Dec 09, 2017 9:10 pm
Forum: MiSTer
Topic: Joystick testing thread
Replies: 38
Views: 2431

Re: Joystick testing thread

Any idea why the menu joystick setup works fine with these INEXT joysticks, and none of the arcade machines, consoles, or computers cores' joystick setups do?
by JimDrew
Sat Dec 09, 2017 3:52 pm
Forum: MiSTer
Topic: SDRAM board
Replies: 80
Views: 5531

Re: SDRAM board

The Amiga's CHIP RAM max speed is limited to the color burst clock (3.579545MHz for NTSC). This is one of the things that you really can't change or you will break compatibility. Many game programs rely on the fact that CHIP RAM and the E_Clock speeds are exact.
by JimDrew
Sat Dec 09, 2017 7:18 am
Forum: MiSTer
Topic: SDRAM board
Replies: 80
Views: 5531

Re: SDRAM board

Ha! What SRAM is 10ns? Why do you actually need SRAM vs. SDRAM? Cost is no object if there is a valid reason!
by JimDrew
Fri Dec 08, 2017 8:58 pm
Forum: MiSTer
Topic: SDRAM board
Replies: 80
Views: 5531

Re: SDRAM board

SRAM is fairly expensive for $$$ vs RAM size - about $4.00 per 512K. I use products already with 512K SRAM, so I have these readily available. SRAM is nice because there is no refresh, but they are kind of slow (45ns typical speeds). What advantage would there be to having SRAM?
by JimDrew
Fri Dec 08, 2017 8:54 pm
Forum: MiSTer
Topic: Joystick testing thread
Replies: 38
Views: 2431

Re: Joystick testing thread

Ok, so I tested several consoles and NONE of them detect the UP button. The only thing that actually does detect the UP button during the "Joystick Setup" in the OSD is the manu menu itself.

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