Search found 104 matches

by olin
Sun Nov 11, 2018 12:11 pm
Forum: Others
Topic: Alternative developemnt FPGA boards for hobbyists
Replies: 4
Views: 7950

Alternative developemnt FPGA boards for hobbyists

I recently discovered an interesting FPGA board on Aliexpress. Considering its price and the FPGA used, I thought it's worth sharing the info. Also if you find a board with reasonable price ( up to 150 USD ) and plenty of resources (let's say more than 70K of LE ) which is publicly available to buy,...
by olin
Sat Nov 10, 2018 3:07 pm
Forum: MiSTer
Topic: SD card utility on Win 7
Replies: 21
Views: 3674

Re: SD card utility on Win 7

Another way is to ask somebody to do the installation procedure for you on his/her machine, then dump the SD card into an image and uploads it to a place where you can download it. You will download it, unpack it and then use either WinDiskImager or Etcher (both win tools) or use plain 'dd' command ...
by olin
Fri Nov 09, 2018 11:32 pm
Forum: MiSTer
Topic: BBC Micro
Replies: 45
Views: 13794

Re: BBC Micro

I just ported BBCMicro core to my de0ns version of MiSTer. One thing I noticed was strong screen flicker caused by the default interlaced mode. I remember that interlaced mode is how the original computer works, so in this respect the core reproduces it perfectly. However my eyes suffer watching the...
by olin
Mon Nov 05, 2018 1:41 pm
Forum: Others
Topic: Arduino MKR Vidor 4000
Replies: 7
Views: 20490

Re: Arduino MKR Vidor 4000

Using EEPROM for each core loading isn't a good way as it will wear out - it's not supposed to be used this way. It's a valid concern. I checked the part datasheet (W25Q16DV) which specifies "More than 100,000 erase/program cycles". If I calculate that in average I will erase the flash 15...
by olin
Mon Nov 05, 2018 9:19 am
Forum: Others
Topic: Arduino MKR Vidor 4000
Replies: 7
Views: 20490

Re: Arduino MKR Vidor 4000

Excellent analysis - it has more information than I expected. :) According to schematic hardware SPI on MCU has connection to FPGA, so at least communication with FPGA can be fast. The board has a Flash memory connected to the FPGA. I wonder whether some sort of 'FPGA bootloader' could be designed t...
by olin
Mon Nov 05, 2018 12:14 am
Forum: Others
Topic: Arduino MKR Vidor 4000
Replies: 7
Views: 20490

Arduino MKR Vidor 4000

This new board from Arduino seems like an interesting toy. It's a combination of ARM Cortex M0 and FPGA Intel (Altera) Cyclone 10CL016 (16K LE) with 8MB of SDRAM and Micro HDMI port on a small board, plus pins to connect peripherals (SD card and joysticks - possibly NES style could be used as they r...
by olin
Sun Nov 04, 2018 2:18 pm
Forum: MiSTer
Topic: Is my DE10-Nano Broken?
Replies: 23
Views: 5360

Re: Is my DE10-Nano Broken?

olin wrote: I can take a look whether I could improve the Xbox controller support.

I've made a fix for the issue, more info in the Joystick testing thread.
by olin
Sun Nov 04, 2018 2:13 pm
Forum: MiSTer
Topic: Joystick testing thread
Replies: 415
Views: 102157

Re: Joystick testing thread

I made a fix for sticking key issue observed on PS3 gamepads and Xbox360 controllers. The issue was observed in menu and during gameplay, the directional pads got stuck to one direction and game could not be played. This is hopefully fixed in my unofficial build. If you have PS3 or Xbox360 controlle...
by olin
Fri Nov 02, 2018 11:13 pm
Forum: MiSTer
Topic: Occasionally can't get OSD after switching cores
Replies: 10
Views: 2206

Re: Occasionally can't get OSD after switching cores

I do have a heatsink though. Cool! Once you install a fan the problem will most likely disappear. Even a small but constant air flow that removes the accumulated heat from the heat sink is usually enough to keep the FPGA cool and prevent stability issues. Let us know whether the fan resolved the is...
by olin
Fri Nov 02, 2018 10:20 pm
Forum: MiSTer
Topic: Prepare SD Card for MiSTer - OSX
Replies: 19
Views: 2997

Re: Prepare SD Card for MiSTer - OSX

There is already such tool. Official MiSTer SD card installer. Of course there is, that's why we have this thread here.The card installer is limited and does not work on all PC configurations. I know, nobody stated it is perfect and will work an every possible combination of hardware and OS and I'm...
by olin
Fri Nov 02, 2018 8:35 pm
Forum: MiSTer
Topic: Prepare SD Card for MiSTer - OSX
Replies: 19
Views: 2997

Re: Prepare SD Card for MiSTer - OSX

Maybe if the existing tool allowed to create the SD card image file as an option (as well as writing to the SD card directly) - that would be an alternative solution without requiring a sharing service space. Something like "write to a file 4GB, 8GB" options. In that case users could run i...
by olin
Fri Nov 02, 2018 8:18 pm
Forum: MiSTer
Topic: Occasionally can't get OSD after switching cores
Replies: 10
Views: 2206

Re: Occasionally can't get OSD after switching cores

Any ideas what could be happening here? Apology if I'm stating the obvious - do you have a heat sink and active cooling on your MiSTer (you did not mention it in your description)? Reading your previous post about a fan plate it appears to me you might run MiSTer without it. If that's the case, ple...
by olin
Fri Nov 02, 2018 9:14 am
Forum: MiSTer
Topic: Is my DE10-Nano Broken?
Replies: 23
Views: 5360

Re: Is my DE10-Nano Broken?

IIRC it was included in my kernel. I tested it today and indeed it is included. My Xbox360 (genuine) game pad was recognised by MiSTer and does work. I could define the buttons, but the gamepad in games is unusable as it gets stuck in one direction after pressing a directional button (I tried to de...
by olin
Fri Nov 02, 2018 12:20 am
Forum: MiSTer
Topic: IO Board _ Weird colors
Replies: 6
Views: 1509

Re: IO Board _ Weird colors

I took a look at your snapshots of IO board and resistors R1 and R7 are not soldered. That's the reason of dull colours, as the bright intensities are not propagated to the video signal. The resistors are both 510 Ohm and their empty pads are located at the bottom of the board. Solder them and you s...
by olin
Thu Nov 01, 2018 11:41 pm
Forum: MiSTer
Topic: Is my DE10-Nano Broken?
Replies: 23
Views: 5360

Re: Is my DE10-Nano Broken?

XBox pads won't work (due to proprietary MS shenanigans). Recent Linux kernels have support for Xbox pads, but they need to be explicitly enabled in the kernel config. Enable JOYSTICK_XPAD (location in kernel 4.4: Device Drivers -> Input device support -> Generic input layer -> Joysticks/Gamepads),...
by olin
Mon Oct 29, 2018 7:55 pm
Forum: MiSTer
Topic: Is my DE10-Nano Broken?
Replies: 23
Views: 5360

Re: Is my DE10-Nano Broken?

BTW, the picture shows your small DIP switches (SW10) seem to be incorrectly configured. According to the DE10 user manual the value 0 means ON and value 1 means OFF (don't ask me why, but it is counter intuitive). In your picture they are all set to 1, which is OFF. Therefore I'd suggest to set the...
by olin
Mon Oct 29, 2018 7:30 pm
Forum: MiSTer
Topic: Is my DE10-Nano Broken?
Replies: 23
Views: 5360

Re: Is my DE10-Nano Broken?

I'd say if you can return the item back to the seller that is probably your safest option. If not, then try to connect "UART to USB (USB Mini B)" cable, the one next to the ETH socket to your computer, open the terminal (the connection parameters are 115200 8N1) and reboot your DE10nano. C...
by olin
Tue Oct 23, 2018 8:20 am
Forum: MiSTer
Topic: Scaler
Replies: 406
Views: 72811

Re: Scaler

Would that mean a time unlimited scaler (this new one) could possibly be compiled on a free version of Quartus? Any other benefits like shorter build time of non-lite cores?
by olin
Mon Oct 22, 2018 6:24 pm
Forum: MiSTer
Topic: FX CAST Atari ST core
Replies: 243
Views: 77009

Re: FX CAST Atari ST core

Not really. I made my own reverse engineering that included chips decap long before. That's even more impressive. Also, unfortunately, the archive includes schematics for a single chip (MSCU that is only for the STE), plus Blitter. Well, at least it can help someone to implement/verify parts of STE...
by olin
Mon Oct 22, 2018 1:28 pm
Forum: MiSTer
Topic: FX CAST Atari ST core
Replies: 243
Views: 77009

Re: FX CAST Atari ST core

Congrats!

Out of curiosity - did you use the designs recently uncovered here: http://www.chzsoft.de/asic-web/ in order to replicate cycle perfect chips?
by olin
Sun Oct 21, 2018 8:21 pm
Forum: MiSTer
Topic: Arcade cores
Replies: 634
Views: 147878

Re: Arcade cores

I have ported the code to MiSter... Well done! The more FPGA developers the better :) The sprites are locked to one axis and no sound... I took a look at the github of the project (https://github.com/d18c7db/FPGA_1942) and it looks the author doesn't seem to mention any issues related to sprites no...
by olin
Mon Oct 08, 2018 6:52 pm
Forum: MiSTer
Topic: ATARI ST Core
Replies: 18
Views: 8049

Re: ATARI ST Core

ijor wrote:I finally found some time for this, made some progress and soon I will need some testers:

That's a great news, looking forward to it.
by olin
Mon Oct 08, 2018 6:30 pm
Forum: MiSTer
Topic: Running MISTer on SOCkit
Replies: 4
Views: 1485

Re: Running MISTer on SOCkit

The MiSTer Linux image (both old and new layout) work fine on DE0-nano-SoC without any modification (apart from using different menu core compiled specifically for de0ns). Each type of Terasic board might be slightly different, but it's worth a shot - plugging in a serial cable and checking the kern...
by olin
Mon Oct 01, 2018 10:06 pm
Forum: MiSTer
Topic: MiSTer SD Card Installer - help needed
Replies: 4
Views: 1709

Re: MiSTer SD Card Installer - help needed

https://github.com/MiSTer-devel/SD-InstallTool_Win_MiSTer Thanks for the link to the source code. I finally managed to install .NET 3.5 on my Win 8.1 and the Card installer now works fine. For the reference I'm posting what I did to fix my windows setup: 1) Downloaded Windows installation ISO image...
by olin
Mon Oct 01, 2018 7:49 pm
Forum: MiSTer
Topic: MiSTer SD Card Installer - help needed
Replies: 4
Views: 1709

MiSTer SD Card Installer - help needed

I tried to install the latest MiSTer SD card (with the new layout) but so far I failed. I normally use Linux so at first I tried to use SD-installer_MiSTer. This no longer seems to create the full SD card (with bootloader etc.), only creates a linux partition image. I could not find any specific abo...

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