Hello!
I am in the process of upgrading my 464 Plus to a 6128 Plus and I already installed the RAM with the required capacitors and resistors, although I still cannot connect the floppy drive because an IC is missing (http://www.cpcwiki.eu/forum/Smileys/SoLoSMiLeYS1/picard.gif) . The thing is that I would like to test if the RAM is OK or not and the only input method I have at the moment is the C4CPC. In there I have the Arnold 5 Diagnostic ROM so I used it to check the RAM. It detects 7 banks and says that all of them are fine after running the test. Of course, if I do the test but I remove one of the RAM chips it fails. This is great, but when I try to run one of the 128KB demos from the C4CPC I only see a black screen. So, I actually do not know if the test is reliable or the demos do not run for whatever other reason. Could you give me any advice?
Thank you!! (http://www.cpcwiki.eu/forum/Smileys/SoLoSMiLeYS1/kiss.gif)
P.D: The RAM is installed is from NEC, with the reference D41464C-10
P.D: Since I already had some sleep and I am fresher now it think that tonight I am going to try to convert some 128KB demos myself with Nocart and then see what happens :D
You have the gerald's RAM test.
Quick and dirty RAM test for CPC (http://www.cpcwiki.eu/forum/amstrad-cpc-hardware/quick-and-dirty-ram-test-for-cpc/)
Yes, but it is for bank 0, as far as I understood, and I would like to test both banks :) I ran Gerald´s test yesterday, anyway, and everything was fine :)
You can use the FutureOS for Cartridge, then enter the MONITOR. Then use the CONFIGURATION to select a RAM block between &C0,&C4, &C5.... &FF.
Then you can dump, edit, fill, copy etc. that RAM and play with it. :)
That is actually a good idea! Thank you! :)
Quote from: ||C|-|E|| on 13:30, 27 May 16
Yes, but it is for bank 0, as far as I understood, and I would like to test both banks :) I ran Gerald´s test yesterday, anyway, and everything was fine :)
Try that one ;)
Thank you Gerald! I will do a cart image from this and check it! :)
Quote from: ||C|-|E|| on 16:45, 27 May 16
Thank you Gerald! I will do a cart image from this and check it! :)
but ..... it's a cart image :laugh:
Oh! I said that because of the DSK extension :) I was expecting a BIN or a CPR :D
Quote from: ||C|-|E|| on 17:32, 27 May 16
Oh! I said that because of the DSK extension :) I was expecting a BIN or a CPR :D
Oh boy, time for the week end to start :picard2: :picard2: :picard2: :picard2: :picard2:
Here is the encarted version
Glad to see that I am not completely crazy! :laugh:
It seems that everything works! :D The computer still looks terrible, but we are in the good way :)
[attachimg=1]
The RAM test
[attachimg=2]
STarKos running from a CPR image...
[attachimg=3]
That crappy 6128 demo from Amstrad...
[attachimg=4]
And the Arnold 5 Diagnostic ROM
[attachimg=5]
I later tested with FutureOS and it seems fine as well :)
Today I received the last chip so, if I can, I will try to install the rest and test how it works.
Looks good! Great! The problem with the demo... an it be that you have to set one pin of the ASIC different? May this be the cause?
I really have no idea about what happens with them :picard: but the truth is when I execute the 128KB demos that are in the C4CPC I only see a black screen. If I connect the X-MEM, then it goes back to the firmware, but they do not load either. As far as I recall, this happens as well with my 6128 Plus when the X-MEM is connected, so I must have something not properly configured :)
Quote from: ||C|-|E|| on 23:48, 27 May 16
I really have no idea about what happens with them :picard: but the truth is when I execute the 128KB demos that are in the C4CPC I only see a black screen. If I connect the X-MEM, then it goes back to the firmware, but they do not load either. As far as I recall, this happens as well with my 6128 Plus when the X-MEM is connected, so I must have something not properly configured :)
The 128k demo where converted to cart using the original nocart. It's likely they expect the FDC to be present from the for the embeded AMSDOS ROM.
I think arnoldemu fixed that is his version.