Search found 154 matches

by ry755
Thu Sep 27, 2018 1:33 am
Forum: Hardware
Topic: SD Card pullup resistors, atmega 644 programmer, few questions
Replies: 15
Views: 7835

Re: SD Card pullup resistors, atmega 644 programmer, few questions

As saw in this topic , he is also using same sd card module reader and from picture it seems pull-up resistors is in place on his module. Interestingly, he had problems associated to sd-card (only on new bootloader), but fixed it by adding (another one?!?) pull-up resistor to the MISO line. Not sur...
by ry755
Thu Sep 20, 2018 1:42 am
Forum: Hardware
Topic: Trying to burn the bootloader
Replies: 14
Views: 6453

Re: Trying to burn the bootloader

I suspect my soldering job on that tiny SMD that converts video signals. I never soldered anything that small before. I mean, it looks fine! I inspected all connections visually and it seemed fine, no shortings, good contacts. Try reheating the solder, just to make sure there are no cold solder joi...
by ry755
Wed Sep 19, 2018 12:13 am
Forum: Uzebox Emulator
Topic: cuzebox3DS - Uzebox emulator ported to n3DS
Replies: 2
Views: 2680

Re: cuzebox3DS - Uzebox emulator ported to n3DS

I also posted it on GBAtemp: https://gbatemp.net/threads/wip-cuzebox ... ds.518244/

It has more info explaining what a Uzebox is.
by ry755
Mon Sep 17, 2018 12:36 am
Forum: Hardware
Topic: Trying to burn the bootloader
Replies: 14
Views: 6453

Re: Trying to burn the bootloader

Wait, before you order a new programmer, try this avrdude command:

Code: Select all

avrdude -p m644 -b 19200 -c avrisp -P /dev/ttyACM0
That should make your Arduino work as an ISP, as long as you have flashed the ArduinoISP sketch and replace /dev/ttyACM0 with the correct port.
by ry755
Sun Sep 16, 2018 11:23 pm
Forum: Uzebox Emulator
Topic: cuzebox3DS - Uzebox emulator ported to n3DS
Replies: 2
Views: 2680

cuzebox3DS - Uzebox emulator ported to n3DS

Continued from http://uzebox.org/forums/viewtopic.php?f=9&t=2386&start=200#p29949 cuzebox3DS Play Uzebox games on your New 3DS! :mrgreen: Image: https://lh3.googleusercontent.com/7gqTRiBxLveg_Lzgt2NqA3BHjrtQ5AS7j7ia3P0B_872RkA26LIrd6MwcZNUCoKFwY4dfKMKy-Si79Goi2iGfJA4gUZVLcdwbqvDE6_ThBRHQhPBXM1Naxmw0...
by ry755
Sun Sep 16, 2018 10:21 am
Forum: Uzebox Emulator
Topic: CUzeBox - The new official Uzebox emulator
Replies: 225
Views: 68371

Re: CUzeBox - The new official Uzebox emulator

As a last resort at easy solutions, you may change the opcode emulator in cu_avr.c, at line 1000. Normally it includes cu_avr_n.h, which I found to be faster in native compiles for the x86. You may switch this to cu_avr_e.h which was intended for Emscripten (where that's faster), and see what you c...
by ry755
Sun Sep 16, 2018 8:42 am
Forum: Uzebox Emulator
Topic: CUzeBox - The new official Uzebox emulator
Replies: 225
Views: 68371

Re: CUzeBox - The new official Uzebox emulator

I already edited guicore.c, enabled FLAG_DISPLAY_SMALL and FLAG_DISPLAY_GAMEONLY, and disabled FLAG_DISPLAY_FRAMEMERGE. The 12-15 fps was after those changes. Unless there's some other changes or optimizations I could do, it looks like that's the best it'll get. :( It does get a little bit faster if...
by ry755
Sun Sep 16, 2018 7:12 am
Forum: Uzebox Emulator
Topic: CUzeBox - The new official Uzebox emulator
Replies: 225
Views: 68371

Re: CUzeBox - The new official Uzebox emulator

I find this awesome to no end! :mrgreen: I coded for the GB Advance back then so I can appreciate! How's the framerate? Thanks! :D According to the console output, it's usually around 12 fps in the faster 804 MHz mode. For some reason when it's in the slow 268 MHz mode it reports 25-30 fps, but it ...
by ry755
Sun Sep 16, 2018 4:57 am
Forum: Uzebox Emulator
Topic: CUzeBox - The new official Uzebox emulator
Replies: 225
Views: 68371

Re: CUzeBox - The new official Uzebox emulator

After making a few tweaks it looks much better now!

https://photos.app.goo.gl/KLti7fxvkp1Qhe9R9
by ry755
Sun Sep 16, 2018 4:33 am
Forum: Hardware
Topic: Trying to burn the bootloader
Replies: 14
Views: 6453

Re: Trying to burn the bootloader

First of all, the part that got here (I got it from the shopping list somewhere here) seems to be atmega644-20pu. Wasn't it supposed to be just 644p? or are these the same thing? 644-20PU is correct. The 20PU shows that it's the DIP version, versus the surface mount one (or the newer 20AU) Since it...