hkzlab / isa_ems_4mb Goto Github PK

The available files in the github have no the ic rom section. Do you make to available the kicad files with the ic-rom section? I like to change litle bit.
Thankyou

I made it by myself and installed it on my motherboard.
It has 8 RAM chips.

I expected 255 pages, but I got 253 and 254.

The number displayed changes slightly(253~255) every time I boot my computer.

I also conducted EMS memory tests through Checkit.
Checkit indicated that there was a parity error.

Finally, there is a problem that the LED is not lit.
I replaced the LED with a new one, but there was no change.

What did I do wrong? I'd appreciate it if you let me know.

I know that you modified the LTEMM driver. It seems that the driver has no option for page frame size. It is always fixed at 64 KB, but I sometimes need 128 KB. Is there a way for having 128 KB? If possible, I can use this card for UMB as well.

U17 is 74HCT139 In the BoM, but 74HCT138 On the PCB.

Which one is correct?