Search found 152 matches
- 06 Nov 2024, 09:32
- Forum: Hardware and software hacking
- Topic: sdcard and plugging reloaded
- Replies: 2
- Views: 86
Re: sdcard and plugging reloaded
Welcome to the forum! As you have figured out, the loader is different from the SD Card Browser. The loader uses the serial port of the Arduino to transfer a gt1 from a PC, and the SD Card Browser uses a similar mechanism to load the gt1 from an SD Card FAT partition, and is what it sounds like you'...
- 23 Oct 2024, 21:48
- Forum: Hardware and software hacking
- Topic: Another 3D printed case for the Gigatron TTL
- Replies: 5
- Views: 446
Re: Another 3D printed case for the Gigatron TTL
Nice work! Just curious if the case can be mounted on the stand in either orientation. I'd prefer to have my Pluggy Reloaded at a lower CG and the USB cable up top. Yes, I think so. The stand carries no screws or anything. You just push one piece into the other. What I don't know is if the Pluggy R...
- 18 Oct 2024, 09:26
- Forum: Hardware and software hacking
- Topic: Another 3D printed case for the Gigatron TTL
- Replies: 5
- Views: 446
Re: Another 3D printed case for the Gigatron TTL
Nice work! Just curious if the case can be mounted on the stand in either orientation. I'd prefer to have my Pluggy Reloaded at a lower CG and the USB cable up top.
- 12 Jul 2024, 23:54
- Forum: Hardware and software hacking
- Topic: Another FPGA Gigatron implementation
- Replies: 6
- Views: 5380
Re: Another FPGA Gigatron implementation
I didn't even know they used diodes. The way I work out the resistor values to use is to write a series of equations based on the Thevenin equivalent circuit with the 75ohm load and solve for the resistor values needed to achieve the target voltages. I'd have to go dig up my circuit analysis textboo...
- 10 Jul 2024, 07:28
- Forum: Hardware and software hacking
- Topic: Another FPGA Gigatron implementation
- Replies: 6
- Views: 5380
Re: Another FPGA Gigatron implementation
I'm also leaning towards the level shifter messing with the VGA timing or levels. I question what that RC circuit he's introduced on the VDDA rail would do to output. A scope capture of the SYNC pulses comparing the input and output levels would be instructive. TBH I really don't have a lot of exper...
- 28 Jun 2024, 06:16
- Forum: Hardware and software hacking
- Topic: Another FPGA Gigatron implementation
- Replies: 6
- Views: 5380
Re: Another FPGA Gigatron implementation
For some reason, I could not get an image out of the VGA connection. HSYNC/VSYNC work, as the controller also works. I looked at his constraints file and both his and the tang nano 9k schematic. He assigned the outputs to a 1.8V bank of pins and is using a 2.2k/4k voltage divider to get the 3.3V sw...
- 04 Jun 2024, 02:11
- Forum: Hardware and software hacking
- Topic: online gigatron emulator and CSP errors
- Replies: 9
- Views: 6664
Re: online gigatron emulator and CSP errors
I think it's under the PhilThomas Contrib folder in the GH repo. Also have you seen this? viewtopic.php?t=459
- 21 Feb 2024, 10:58
- Forum: Kit assembly gallery
- Topic: Hello! I made a Gigatron
- Replies: 4
- Views: 15460
Re: Hello! I made a Gigatron
Are you able to tell what IC the knock off controller uses inside? I'm assuming it's hidden under a glob top. If you have the parts handy, it's fairly trivial to build a CD4021B or 74xx165 based NES controller if you want a guarantee of compatibility. https://www.raphnet.net/electronique/arcade_cont...
- 18 Oct 2023, 11:05
- Forum: Hardware and software hacking
- Topic: Craps (Dice Game)
- Replies: 4
- Views: 4243
- 18 Oct 2023, 08:08
- Forum: Hardware and software hacking
- Topic: Craps (Dice Game)
- Replies: 4
- Views: 4243
Re: Craps (Dice Game)
Nice work Mike! Dude, first Poker then Craps... When are Slots, Roulette and Blackjack going to be released? I'll get started working on the Gigatron Casino setup. Congrats again!