Page 3 of 21
Re: derkom's attempt
Posted: 23 Nov 2019 19:29
by Icky
Nice work
@derkom.
Before you put your BAD DMA socket in read this
https://www.exxosforum.co.uk/forum/viewt ... 984#p28984
Re: derkom's attempt
Posted: 23 Nov 2019 20:04
by derkom
Heh, precisely why I skipped that resistor for now. Figured I would want to check how well it plays with that socket first. :)
Re: derkom's attempt
Posted: 24 Nov 2019 12:32
by derkom
DTACK FIX
H4-004.jpg
Edit: Fixed before anyone else notices! :oops:
Re: derkom's attempt
Posted: 24 Nov 2019 12:36
by exxos
Not sure that is right.. I flipped the image to see better....
Capture.PNG
Re: derkom's attempt
Posted: 24 Nov 2019 12:40
by derkom
Hah, whoops, you're right. :oops:
Edit: Fixed above. :)
Re: derkom's attempt
Posted: 24 Nov 2019 13:44
by Icky
@derkom - I had the same problems on the ALPHA. I can never tell my left from my right so I got into the habit of flipping the image like @exxos did.
Re: derkom's attempt
Posted: 24 Nov 2019 14:13
by derkom
Icky wrote: 24 Nov 2019 13:44
@derkom - I had the same problems on the ALPHA. I can never tell my left from my right so I got into the habit of flipping the image like @exxos did.
I used to be good at this stuff. I seem to be losing my spatial relations skills in my old age. :roll:
@exxos, did you see my question about TOS ROM above? Can I reuse the ROM from the alpha, or will I need to acquire a different one for H4?
Re: derkom's attempt
Posted: 24 Nov 2019 14:22
by Icky
derkom wrote: 24 Nov 2019 14:13
Icky wrote: 24 Nov 2019 13:44
@derkom - I had the same problems on the ALPHA. I can never tell my left from my right so I got into the habit of flipping the image like @exxos did.
I used to be good at this stuff. I seem to be losing my spatial relations skills in my old age. :roll:
@exxos, did you see my question about TOS ROM above? Can I reuse the ROM from the alpha, or will I need to acquire a different one for H4?
You can re-use the one from the ALPHA :)
Re: derkom's attempt
Posted: 24 Nov 2019 14:44
by derkom
Icky wrote: 24 Nov 2019 14:22
You can re-use the one from the ALPHA :)
Super. Thanks.
Re: derkom's attempt
Posted: 24 Nov 2019 20:38
by derkom
A question about QG1 ("CRYSTAL 32MHz"): I have a 32.00000 MHz oscillator in DIP-14 package, but I notice the link to @exxos's store is for a 32.084988 MHz unit. What's the difference going to cause here? Is my 32 MHz appropriate?