Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!cwjcc!gatech!udel!udccvax1!gdtltr From: gdtltr@vax1.acs.udel.EDU (Gary D Duzan) Newsgroups: comp.sys.atari.8bit Subject: Turbo-816 Update and Question Message-ID: <4198@udccvax1.acs.udel.EDU> Date: 18 Aug 89 23:58:11 GMT Organization: Galadrim (really a disorganization) Lines: 80 The following is from the DataQue support BBS: ----- Date: 08-02-89 (23:34) Number: 8 To: ALL Refer#: None From: SYSOP Recv'd: (n/a) Subj: STATUS Sec'ty: Public Message Current Status of the Turbo-816: The smaller version of the Turbo-816x is now at the board house, and should be back in a few weeks. The SRAM board is also out on the same order as the T816x boards, and should be back about the same time. As soon as they get me the prices I will put them up here. Due to some noise problems when certian MIO units are connected to the PBI interface, I am investigating various solutions. Initially Bob Puff & I thought of a buffer board, but it ended up being to difficult to manufacture, and Bob had limited success getting the buffer board to work with non-t816 due to the additional propogation delays. Another solution, which seems to work, is to add bypass caps to certain lines. add 100pf (pico-farad) bypass caps to the R/W line, Phase-2 line, and see if that helps the problem, if not, try adding bypasses of the same size to the data bus. as a last resort, the address bus. these caps are usually very small, and if anyone finds a source for SIP style, let me know....... Msg(s) [1 - 13], [F]rom, [S]ince, [Y]our, [N]ext, [P]revious, [H]elp DataQue Conference Message Read Command [C/R]=none? n Date: 08-02-89 (23:41) Number: 9 To: ALL Refer#: None From: SYSOP Recv'd: (n/a) Subj: PROM Sec'ty: Public Message Version 1.1 of the Turbo-OS will become available this week. It is now in the very final test stages, and only checksum balancing needs to be done. many improvements have been added, including a much superior memory- management algorithm for the expanded memory type. also a better test algorithm for extended (xe-banked) ram was added, resulting in more banks available for >256k machines. A few minor bugs that slipped past the beta testers were also corrected. there are now approx 100 t816 installed world-wide. not a gangbuster count, but considering the infancy of the project, not bad I feel. Turbo-Calc is still being worked on.... a few minor problems popped up, which are being looked at. Alf-ASM for the T816 is being developed by Jeff Williams, and Bob Puff and look for it to become available sometime within a month or two. this asm will support all native mode op codes, and hopefully full external/public module linking. Msg(s) [1 - 13], [F]rom, [S]ince, [Y]our, [N]ext, [P]rev ----- Now for the question. I'm not much of a hardware hacker, so could anyone explain to me what the above MIO fix procedure amounts to? Thanx. Gary Duzan Time Lord Third Regeneration Atari Enthusiast Extreme -- _o_ _o_ [|o o|] "Two hearts are better than one." -- Yes [|o o|] |_O_| "Don't listen to me; I never do." -- Doctor Who |_O_|