exxos IDE interface (untested)

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Icky
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Re: exxos IDE interface (untested)

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exxos wrote: Thu Dec 27, 2018 12:18 am Same here. I learned eating 6 satsumas gives me stomach ache! :lol:
Ouch - too much citric acid :(
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Re: exxos IDE interface (untested)

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I had a brainstorm that my old development board would be a ideal thing for the IDE project.

It already has the PLD wired up and a few spare IO pins for the IDE control lines. The address bus and bus control lines are already wired up to the PLD. It also has most of the CPU lines on header pins to make wiring up / testing, external stuff a lot easier.

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So once I get it to behave as a stock system, I will send it to Icky for the IDE project.
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viewtopic.php?f=17&t=1585 Have you done the Mandatory Fixes ?
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People should find solutions to problems, not find problems with solutions.
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Re: exxos IDE interface (untested)

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exxos wrote: Thu Dec 27, 2018 2:06 pm So once I get it to behave as a stock system, I will send it to Icky for the IDE project.
Thanks Exxos that will make things a little simpler.

Ok. I had first power on. ST worked fine no smoke or explosions. Went to desktop.

HDD hasn’t spun up there isn’t enough voltage. I know something is not quite right so am just tracing all the connections.
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Re: exxos IDE interface (untested)

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hopefully its something simple.


The dev board has been running for a few hours ... So it seems OK . will try and send it Wednesday...
https://www.exxosforum.co.uk/atari/ All my hardware guides - mods - games - STOS
https://www.exxosforum.co.uk/atari/store2/ - All my hardware mods for sale - Please help support by making a purchase.
viewtopic.php?f=17&t=1585 Have you done the Mandatory Fixes ?
Just because a lot of people agree on something, doesn't make it a fact. ~exxos ~
People should find solutions to problems, not find problems with solutions.
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Re: exxos IDE interface (untested)

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exxos wrote: Thu Dec 27, 2018 10:18 pm hopefully its something simple.


The dev board has been running for a few hours ... So it seems OK . will try and send it Wednesday...
Looks like it was something simple but painstakingly annoying to find. The IDE 40 - 44 convertor block is broken it was not providing power correctly and a few other pins were not working.

Am currently rewiring another IDE cable in place. I probably will find something else wrong with it knowing my luck.
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Re: exxos IDE interface (untested)

Post by terriblefire »

We went through enormous pain on the TF328 to make every CF card work. You can use the code for that

https://github.com/terriblefire/tf328/b ... /rtl/ata.v
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Re: exxos IDE interface (untested)

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terriblefire wrote: Sat Dec 29, 2018 6:07 pm We went through enormous pain on the TF328 to make every CF card work. You can use the code for that

https://github.com/terriblefire/tf328/b ... /rtl/ata.v
Thanks terriblefire I'll take a look.
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Re: exxos IDE interface (untested)

Post by exxos »

Icky wrote: Sat Dec 29, 2018 6:04 pm Looks like it was something simple but painstakingly annoying to find. The IDE 40 - 44 convertor block is broken it was not providing power correctly and a few other pins were not working.

Am currently rewiring another IDE cable in place. I probably will find something else wrong with it knowing my luck.
Ahh that sux :( the joys of testing stuff I guess :)
https://www.exxosforum.co.uk/atari/ All my hardware guides - mods - games - STOS
https://www.exxosforum.co.uk/atari/store2/ - All my hardware mods for sale - Please help support by making a purchase.
viewtopic.php?f=17&t=1585 Have you done the Mandatory Fixes ?
Just because a lot of people agree on something, doesn't make it a fact. ~exxos ~
People should find solutions to problems, not find problems with solutions.
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Re: exxos IDE interface (untested)

Post by Icky »

exxos wrote: Sun Dec 30, 2018 1:54 am
Icky wrote: Sat Dec 29, 2018 6:04 pm Looks like it was something simple but painstakingly annoying to find. The IDE 40 - 44 convertor block is broken it was not providing power correctly and a few other pins were not working.

Am currently rewiring another IDE cable in place. I probably will find something else wrong with it knowing my luck.
Ahh that sux :( the joys of testing stuff I guess :)
Indeed. This is what happens when scavenging old kit for parts. There is often a reason why it stopped working in the first place.
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Re: exxos IDE interface (untested)

Post by Icky »

A small update as not much Atari work was done over the Christmas period.

Thanks to Exxos for sending the dev-board to help with testing this out. Have been working with Exxos on the PLD and other items and last night I finally finished off the wiring of the board and it is a lot neater than that big mess-o-wires of a breadboard version.

First switch on and the drive spins up, the ST is alive and there is no smoke.

The ST drops to the desktop and the floppy is not read. Attempting to read the floppy comes up with the retry dialog box.

Well this was the first attempt so I need to check the circuit, PLD and other things out.

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