[Coco] How about THIS as a CoCo 3 replacement instead of an FPGA? Thoughts?
Francis Swygert
farna at att.net
Thu Aug 6 07:30:38 EDT 2015
I've proposed something similar, and others have also. Remember Steve Bjork's proposal of a regular PC with a card that had the CoCo ports on it? A mini desktop would work as you propose now, just minus the CoCo specific ports -- though they could be emulated to a point as well. I've proposed programming the Centronics parallel port to at least partially emulate a cartridge port.
The small board is appealing, could be mounted in a CoCo case with a compact USB keyboard. It has an Arduino bus also, so plug a VGA into the mini PCI and make a shield to emulate a cartridge port and joy sticks. I'm with you on the cartridge port -- emulate the accessories that plug in and be done with it. That excludes the machine for some experimentation though -- so use a parallel port card in a PC or create an I/O shield that partially emulates the cart port or at least acts like a PIA (or two) so it can be easily programmed to "run things".
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Date: Wed, 5 Aug 2015 12:28:57 -0400From: Barry Nelson <barry.nelson at amobiledevice.com>
How about an Arduino Galileo (intel based Arduino) running Free DOS and booting into Jeff Vavasour's old CoCo 3 emulator?
http://www.mouser.com/catalog/specsheets/Galileo_Datasheet_329681_003.pdf
http://www.vavasour.ca/jeff/trs80.html#coco3
FreeDOS running on Galileo using SeaBIOS as a CSM (Compatibility Support Module).
The SeaBIOS patches are at http://git.infradead.org/users/dwmw2/seabios.git and patches to the Quark UEFI at http://git.infradead.org/users/dwmw2/quark-edk2.git
It has a mini pci express slot which can have a VGA card plugged into it.
A full sized mini-PCI Express* slot, 100Mb Ethernet port, Micro-SD slot, RS-232 serial port, USB Host port, USB Client port, and 8MByte NOR flash come standard on the board.
o 512 KByte embedded SRAM that is enabled by the firmware by default.
o 256 MByte DRAM, enabled by the firmware by default.
o Optional micro SD card offers up to 32GByte of storage
o USB storage works with any USB 2.0 compatible drive
o 11 KByte EEPROM can be programmed via the EEPROM library. Frank Swygert
Fix-It-Frank Handyman Service
803-604-6548
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