Well I ordered two h4 boards and going through my parts bins found some C100281 32 MHZ 32.04245 from some Atari machines I am hoping the will work with the us tos
Also found some apple 72pin 4mb 8 chips 70ns memory
And I have two doner 520st and a 520stfm maybe working.
Would like to know if anyone has the dma fix board extra out there for sale. And what code or jed file is there for the 1.44 mb fd
Thank you
Tom
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DO NOT USE MOBILE / CGNAT DEVICES WHERE THE IP CHANGES CONSTANTLY!
At this time, it is unfortunately not possible to whitelist users when your IP changes constantly.
You may inadvertently get banned because a previous attack may have used the IP you are now on.
So I suggest people only use fixed IP address devices until I can think of a solution for this problem!
At this time, it is unfortunately not possible to whitelist users when your IP changes constantly.
You may inadvertently get banned because a previous attack may have used the IP you are now on.
So I suggest people only use fixed IP address devices until I can think of a solution for this problem!
Please make sure you are logged in for at least 2 hours
to make sure your IP is added into the firewall whitelist, thanks
to make sure your IP is added into the firewall whitelist, thanks
Tom's attempt at the h4
Re: Tom's attempt at the h4
Welcome to the club @TomsworkTomswork wrote: Wed Feb 19, 2020 7:26 am Well I ordered two h4 boards and going through my parts bins found some C100281 32 MHZ 32.04245 from some Atari machines I am hoping the will work with the us tos
Also found some apple 72pin 4mb 8 chips 70ns memory
We have some H4 DMA fix boards in the pipeline with the PCB fab not sure when we will get them back as they are backed up due to the restrictions of manufacturing in China at the moment. Once you get to the point of doing the HD Floppy addition on your H4's then PM @exxos or myself.Tomswork wrote: Wed Feb 19, 2020 7:26 am Would like to know if anyone has the dma fix board extra out there for sale. And what code or jed file is there for the 1.44 mb fd
Re: Tom's attempt at the h4
Thank Icky I will keep an eye on the posts
Tom
Tom
Re: Tom's attempt at the h4
Well got my h4 boards today started looking through my parts bins will start shortly
Tom
Tom
Re: Tom's attempt at the h4
@Icky still waiting on my gals. Do you need the bogie adaptor board for 1.44 to work? I'm assuming the jumpers will work but please verify.Icky wrote: Wed Feb 19, 2020 10:36 amWelcome to the club @TomsworkTomswork wrote: Wed Feb 19, 2020 7:26 am Well I ordered two h4 boards and going through my parts bins found some C100281 32 MHZ 32.04245 from some Atari machines I am hoping the will work with the us tos
Also found some apple 72pin 4mb 8 chips 70ns memory
We have some H4 DMA fix boards in the pipeline with the PCB fab not sure when we will get them back as they are backed up due to the restrictions of manufacturing in China at the moment. Once you get to the point of doing the HD Floppy addition on your H4's then PM @exxos or myself.Tomswork wrote: Wed Feb 19, 2020 7:26 am Would like to know if anyone has the dma fix board extra out there for sale. And what code or jed file is there for the 1.44 mb fd
Re: Tom's attempt at the h4
Just the GAL22V10 is needed and two extra jumpers. If you have a programmer, Icky and exxos have the JED file for the GAL. Or did Icky sent you one over snail mail?PaulJ wrote: Tue Feb 25, 2020 3:00 pm @Icky still waiting on my gals. Do you need the bogie adaptor board for 1.44 to work? I'm assuming the jumpers will work but please verify.
The small board with the 1-channel inverter and the buffer chip is only for the HDD. The floppy drive buffer chip (SN74LS245) does not need a fix.
Re: Tom's attempt at the h4
Just waiting on my gals... thought I had some for another project but couldn't find them to save my life. Now that my new order should arrive tomorrow I'll be able to find the ones that are missing. 
Re: Tom's attempt at the h4
I have the gal on order 22v10c. I will need the jed file so I can pass on the pcb I guesss. I'm still digging I'm my shop supply's but I do have a programmer somewhere
Tom
Tom
Re: Tom's attempt at the h4
Made some progress before work my tl866 ii will program the gal. This is for the 1.44 floppy. now about the pcb board for the dma. This mod is needed to use the internal and external asci ports I'm thinking. I plan to use a ultrasatan and a acsi to scsi board with a scsisdv6
Any advice on this setup so far
Tom
Any advice on this setup so far
Tom
Re: Tom's attempt at the h4
You need to mod for any DMA connectors.