Quorum improvement — ZXNet «hardware.zx»

From Konstantin Zhukov To All 5 December 2005

Hello, All Help me find the Quorum-64 circuit. Does anyone know how to turbocharge this computer? I tried to connect a 1MB SIM to it, according to the connection diagram to Leningrad (from Deja Vu magazine). But at the same time the computer did not provide any vital signs. Then I redesigned the recording signal generation circuit in RAM to a similar one from Leningrad (where instead of the WR signal it is used combination of RD and RFSH). The changes on the screen show that the ROM is starting in RAM something is recorded, but apparently due to incorrect regeneration nothing is recorded works. Is it possible to solve this problem?

From Alexander Pekhimenko To All 5 December 2005

Hello, Jukov the whole problem is that bit 7 and bit 6 must be inventoried compared to bits 0,1,2,. I have a diagram for Leningrad. It is on my Leningrad. I forbid publishing it anywhere. It, along with the description and expansion to 4 Meg is being prepared for release in the new year in Radiomir.Your PC.If that you won’t understand. I’ll explain.

From Kamil Karimov To All 5 December 2005

Hello, Jukov Juk> I tried to connect Simm instead of ru5, i.e. high bits of the bus Juk> addresses were not used. Just to check functionality. But Juk> does not work even when using only 64Kb of the entire sim volume. And I hope I installed a buffer for input/output decoupling. Unlike RU5, SIMMok does not have separate input/output lines.

From Chunin Roman To All 5 December 2005

Hello, Jukov Juk> I tried to connect Simm instead of ru5, i.e. high bits of the bus Juk> addresses were not used. Just to check functionality. But Juk> does not work even when using only 64Kb of the entire sim volume. I recommend writing to the author of Quorum, he is on the forum under the pseudonym caro.

From Konstantin Zhukov To All 5 December 2005

Hello, CHRV CHR> I recommend writing to the author of Quorum, he is on the forum under a pseudonym CHR> caro. Thank you very much for your good advice. I just can’t do it by mail yet. use it.:-(

From Konstantin Zhukov To All 5 December 2005

Hello caro car> And I hope I have installed a buffer for input/output decoupling. car> Unlike RU5, SIMMok does not have separate input/output lines. Sure. Don't take me for a complete lame. Not used in this Quorum signals to slow down the processor WAIT or BUSRQ, unlike Leningrad, which is slowed down by WAIT. The problem lies somewhere in the synchronization unit.

From Alexander Pekhimenko To All 11 December 2005

Hello, Jukov There should be no connection with the synchronization unit. I'm in Leningrad to check performance of SIMMa, first I also threw out RU5 and connected it to their output pins SIMM, put the higher addresses on the ground, left the cas as it was, but installed the mscheme buffer (it won’t work without it) and everything worked fine.

From jtn To All 12 December 2005

Hello, Jukov Anything can happen - and the load on the signals is increased or the dead body falls down makeshift or just noisy due to nutrition (unlikely)