Guys I see there are some waiting for the PIC/RTC below. Andrew and I have just gotten a prototype back of a new board (which for lack of a better name I call the “MSDOS” board).
It will contain an 8459A (with 8 bar LED for bus V0-V7 Ints), and Intel 8254 counter with speaker output, an AT style CMOS RTC (DS12887), two sockets for 16 bit ROM’s EPROMS etc. and a 0-8 wait state generator to place wait states in a window anywhere in the S100 bus address space (e.g. VGA RAM area). I call this board the MSDOS board because it is used to emulate in hardware what later versions of MS-DOS expect to see on an IBM/clones AT style motherboard.
So… the old PIC/RTC, (while it works fine BTW, with our 8086 board and MS-DOS 4.01 “for well-behaved programs”) will essentially be replaced.
Hopefully no bugs will appear in this new hardware. Should be a month or two – so hang in there.
John Monahan Ph.D
Please make sure I am not on the list for the 8086 board.
For the time being I will not be buying any more of John's
Should I change my mind in the future, I will let you know.
On Nov 5, 2011, at 10:35 AM, lynchaj wrote:
Hi! We are at 19 PCBs and I am about to order the boards.