Search found 1218 matches

by Sorgelig
Mon Dec 18, 2017 11:37 am
Forum: MiSTer
Topic: DE-10 nano temperature issues
Replies: 41
Views: 1479

Re: DE-10 nano temperature issues

Do not compare to MiST. MCU and FPGA are not in one package there and completely irrelevant for comparison. MiSTer uses Linux while MCU on MiST is bare-metal project. Linux provides great support for many devices, as a consequence it requires much more power to handle everything smoothly. Even if wi...
by Sorgelig
Mon Dec 18, 2017 7:43 am
Forum: MiSTer
Topic: DE-10 nano temperature issues
Replies: 41
Views: 1479

Re: DE-10 nano temperature issues

Less heating probably caused by switching from Thumb2 to ARM instructions, but it needs to be verified carefully. You need to compare Thumb2 and ARM in same environment. Either enable second core in both configs or disable it in both. If ARM version really produces less heat then it will be worth to...
by Sorgelig
Sun Dec 17, 2017 10:58 pm
Forum: MiSTer
Topic: SDRAM board
Replies: 66
Views: 2988

Re: SDRAM board

Ah, this is simple shield/cover. Originally it was supposed to reduce EMI to SDRAM, but turned out useless. Although it makes SDRAM look more like module than bare board.
by Sorgelig
Sun Dec 17, 2017 9:14 pm
Forum: MiSTer
Topic: Building Linux kernel
Replies: 7
Views: 370

Re: Building Linux kernel

Actually i've forgot how i've limited the number of CPU :)
May be through kernel config options.
by Sorgelig
Sun Dec 17, 2017 8:43 pm
Forum: MiSTer
Topic: SDRAM board
Replies: 66
Views: 2988

Re: SDRAM board

May be RTC board which is connected to LTC port?
by Sorgelig
Sun Dec 17, 2017 12:35 pm
Forum: MiSTer
Topic: MISTer on DE0-nano-SoCKit?
Replies: 63
Views: 2278

Re: MISTer on DE0-nano?

ijor wrote:Not sure that is the best method to find the optimal shift. The right way is through timing analysis. If you want, you can combine some measurements with timing analysis.

Yeah. Go measure it. Just let me find the best sit to watch ;)
by Sorgelig
Sun Dec 17, 2017 11:40 am
Forum: MiSTer
Topic: Building Linux kernel
Replies: 7
Views: 370

Re: Building Linux kernel

Using only 1 core is intended option. If your kernel uses 2 cores, then it means it doesn't understand option string passed to kernel upon booting.

1 core is more than enough for current MiSTer version. Second core is reserved for special features like hybrid emulation, currently is not used.
by Sorgelig
Sun Dec 17, 2017 7:18 am
Forum: MiSTer
Topic: SDRAM board
Replies: 66
Views: 2988

Re: SDRAM board

JimDrew wrote: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.

Good!
But don't rush. I didn't get PCB yet, so i didn't test it.
by Sorgelig
Sun Dec 17, 2017 4:50 am
Forum: MiSTer
Topic: MISTer on DE0-nano-SoCKit?
Replies: 63
Views: 2278

Re: MISTer on DE0-nano?

Shift the phase is the easiest thing to do. But first, you need to finish the HW design. At least you need to fix the pin assignment. Shift amount should be done on max supposed to be supported frequency. For example on 167MHz. Lower frequencies will use the same phase shift. Just shift it a little ...
by Sorgelig
Sun Dec 17, 2017 4:36 am
Forum: MiSTer
Topic: SDRAM board
Replies: 66
Views: 2988

Re: SDRAM board

Probably will be tricky to solder. Then maybe try something like this: sdram_vert_mount.jpg Illustrative image how to mount vertical SDRAM board on the dual row header pins. The board of 1.6mm thickness fits nicely in between the dual row header pins, which can be soldered to pads on the SDRAM boar...
by Sorgelig
Fri Dec 15, 2017 5:46 pm
Forum: MiSTer
Topic: Joystick testing thread
Replies: 38
Views: 1468

Re: Joystick testing thread

Weird behavior. I have no idea what causes this. Technically from software point of view, there is no difference which direction is it. Probably it's some sort of hardware incompatibility. May be it can be fixed or workaround'ed - hard to tell without having it. But if it satisfies you now, then ok ...
by Sorgelig
Fri Dec 15, 2017 5:42 pm
Forum: MiSTer
Topic: SDRAM board
Replies: 66
Views: 2988

Re: SDRAM board

CKE is always at '1' while working. Some SDRAM modules pull CKE to 1 at power up and never set to 0.
by Sorgelig
Fri Dec 15, 2017 5:04 pm
Forum: MiSTer
Topic: SDRAM board
Replies: 66
Views: 2988

Re: SDRAM board

nope. Why?
by Sorgelig
Fri Dec 15, 2017 4:30 pm
Forum: MiSTer
Topic: SDRAM board
Replies: 66
Views: 2988

Re: SDRAM board

Extra small version:
sdram_xs.png

Probably will be tricky to solder. But if it will work not worse than standard vertical module, then is should close the dilemma "which dimension to sacrifice".
by Sorgelig
Fri Dec 15, 2017 4:19 pm
Forum: MiSTer
Topic: Testing: Support for more HDMI resolutions and other changes.
Replies: 22
Views: 502

Re: Testing: Support for more HDMI resolutions and other changes.

New release should fix INI problems.
by Sorgelig
Fri Dec 15, 2017 4:17 pm
Forum: MiSTer
Topic: MiSTer: updates changelog
Replies: 62
Views: 8066

Re: MiSTer: updates changelog

MiSTer, ZX Spectrum, BK0011M:
- Fix INI parser
- Another, more simple way to supply HDMI custom video resolutions
- Move hard-coded HDMI resolutions from cores to MiSTer.
by Sorgelig
Fri Dec 15, 2017 3:51 pm
Forum: MiSTer
Topic: Building Linux kernel
Replies: 7
Views: 370

Re: Building Linux kernel

Make sure you're using branch socfpga-4.5
I've pushed commits i've made long time ago but forgot to push. Although they shouldn't affect the booting process.

I'm using arm-linux-gnueabihf-gcc-6.2.1 to build the kernel.
by Sorgelig
Fri Dec 15, 2017 3:20 pm
Forum: MiSTer
Topic: Testing: Support for more HDMI resolutions and other changes.
Replies: 22
Views: 502

Re: Testing: Support for more HDMI resolutions and other changes.

Not sure what you mean. Sometimes DE10-nano get screwed and needs cold reset or power cycle to get back to normal work.
by Sorgelig
Fri Dec 15, 2017 2:33 pm
Forum: MiSTer
Topic: Testing: Support for more HDMI resolutions and other changes.
Replies: 22
Views: 502

Re: Testing: Support for more HDMI resolutions and other changes.

Lite revision doesn't use VIP scaler. It uses simple 2x/3x/4x multiplier like scandoubler.
by Sorgelig
Fri Dec 15, 2017 10:38 am
Forum: MiSTer
Topic: Testing: Support for more HDMI resolutions and other changes.
Replies: 22
Views: 502

Re: Testing: Support for more HDMI resolutions and other changes.

Even 480p/576p are not native retro resolutions. You still have to double the amount of lines which is also process of scaling. Actually, scaled scandoubled video looks better than scaling original 240/288 lines. So, simple scandoubler also can improve quality. Lite revisions of ZX and BK0011M cores...
by Sorgelig
Fri Dec 15, 2017 4:06 am
Forum: MiSTer
Topic: Testing: Support for more HDMI resolutions and other changes.
Replies: 22
Views: 502

Re: Testing: Support for more HDMI resolutions and other changes.

I just tried it using the new template MiSTer.ini and found that there must be some problem with the parser. video_mode=0 is only evaluated when there are less comments (only max. 5 lines) above the video_mode line otherwise MiSter says: "Incorrect amount of items in video_mode parameter: 0&qu...
by Sorgelig
Thu Dec 14, 2017 8:34 pm
Forum: MiSTer
Topic: Testing: Support for more HDMI resolutions and other changes.
Replies: 22
Views: 502

Re: Testing: Support for more HDMI resolutions and other changes.

Weird.. My monitor shows different resolutions..
by Sorgelig
Thu Dec 14, 2017 6:22 pm
Forum: MiSTer
Topic: MiSTer: updates changelog
Replies: 62
Views: 8066

Re: MiSTer: updates changelog

MiSTer:
- Give higher priority to key reset combination over joystick mapping.
- Support for different HDMI resolutions.

ZX Spectrum, BK0011M:
- Support for more HDMI resolutions. Integrate QSYS building into compilation process.
- Remove PS2 layer from keyboard and mouse - reduce input latency.

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