4.75v onn VCC of the 030Good point. Got distracted by the lack of sound chips.
What should go to pin 49? Sorry missed that partThats good, the VIA is telling the GLU to overlay the ROM.
It should go to pin 49 of the GLU chip. Does that have continuity to the top of the pin?
The overlay signal from via1, pin 6...What should go to pin 49? Sorry missed that part
ohh pin 6 to 49...Thats good, the VIA is telling the GLU to overlay the ROM.
It should go to pin 49 of the GLU chip. Does that have continuity to the top of the pin?
Yes it has continuityohh pin 6 to 49...
Then if the GLU is working, it knows that the ROM is needed and has it ready at the bottom of memory for the processor to start executing the boot process...Yes it has continuity
as well as R/W, DS, AS, DSACK...Okay. Lemme see what else then. The mental picture I'm building is a weird one, in which the CPU seems to just be running nonstop reading from ever-increasing addresses without actually doing anything...
Tristate buffers?Okay. Lemme see what else then. The mental picture I'm building is a weird one, in which the CPU seems to just be running nonstop reading from ever-increasing addresses without actually doing anything...
It's one of the things I'm thinkingTristate buffers?
Thats what i figured and bare minimum would be ideal for now.No SIMMs is fine - if all else was well, the ROM code would still execute and go thru basic steps and try to size memory and annoyedly chime at you for having no memory.
How... are you checking if it is booting?Thats what i figured and bare minimum would be ideal for now.