simbo wrote:at least you can upgrade the core will less hastle than plucking off your flat ball pin array chip you plan to use
simbo wrote:its all very well having extended sound and graphics but htf ??? do we address it ???
simbo wrote:even the finest minds here find a flaw in the ideas i put foward then later magicaly someone add them to there 'idea' but making a whole new clone i dont see the point
simbo wrote:i for one would love a core clone if it was exact first time
simbo wrote:so whats the point in more landfill, better devote your time to real stuff and not pie in the sky clone of everyone elses clones non flexable designs what ever case there in will never come close to real hardware
simbo wrote:dispite the FACT there is nothing in the world comes close to it in simulation terms for control over circuits in realtime
simbo wrote:i see a clone = 20 to 30 customers
belboz wrote:One question though. Will you be emulating the Atari keyboard controller fully and or support connecting an actual Atari keyboard? I ask because I know the Eifel PS2 interface works nicely, but many games don't work with it since they talk to the keyboard controller directly.
The RAM is DDR DRAM and there is 64MB of it, maybe more. I will come up with wrappers for the Minimig code so it runs on this board. What I want to get to is the bootloader loads a default FPGA image at startup which drives the on screen menu. You then choose the platform (Amiga/Atari/Pacman/HD Asteroids etc) and the disk images / roms. ...
Any comments? There is still time to tweak it....
Should the base card have composite / SVHS TV out, or is the DVI into a HDMI tv good enough? Do modern TVs work at 50Hz with HDMI actually, I don't have one???
I don't see that TV, composite or S-Video out is much necessary now.
PAL/NTSC VGA output to TV SCART / original 15KHz monitor (best solution)
Joel wrote:I don't see that TV, composite or S-Video out is much necessary now.
I don't agree with that at all. A lot of demos and games don't look right on computer monitors because they were made to take advantage of TV hardware.
fpgaarcade wrote:SD card is formated fat16. I am chatting to Dennis about this as the loader is based on the Minimig code.
A init.bit binary is booted into the FPGA. This boots up and get the OSD running. You then choose the platform FPGA image and a disk image.
Initially at least a single disk image (.st or .msa) can be chosen and will be accessed at low level by a floppy controller in the FPGA.
It would be interesting to extend this to allow a real file system, and it is possible as all the accesses post FPGA load are controlled from the FPGA. We are stuck with fat16 though.
ppera wrote:FAT16 is OK. Especially because SD cards are limited on 2GB too (at this moment).
I'm going to see if we can get SDHC and fat32 support into MiniMig's PIC sometime next month (assuming they send me a PCB). There is an open source FAT32 library designed for PIC processors http://www.robs-projects.com/filelib.html (Dunno if it will fit in the MiniMig's PIC yet, or how much work it will be to get it integrated).
fpgaarcade wrote:looking at Dennis' PIC code, it seems to support MMC and SD. still investigating .
fpgaarcade wrote:Does anybody know of a CPU which has 2 SPI connections?
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