Beginning of very long journey

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mpattonm
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Re: Beginning of very long journey

Postby mpattonm » Fri Nov 08, 2019 10:44 am

frost wrote:Out of curiosity, what's the form factor of the board ?

Thank you. By the way, I have added motherboard 3D models to Github, if you want to have a look at it
https://github.com/salacpavel/F030NG

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Re: Beginning of very long journey

Postby sqward » Sun Nov 10, 2019 12:25 am

I truly don't understand the use of a different DSP. This will immediately make it NOT compatible with Falcon and there will be hardly any software for it.

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Re: Beginning of very long journey

Postby christos » Sun Nov 10, 2019 7:00 am

sqward wrote:I truly don't understand the use of a different DSP. This will immediately make it NOT compatible with Falcon and there will be hardly any software for it.


Well if it is in the same family it should be code be compatible (according to NXP), but i am pretty sure that incompatibilities will arise. How much incompatible it will be, i don't know.
I am also worried about the removal of the ejp's. That would make most games unplayable.

Anyway, assuming you can still find CPU and dsp in the market, as well as many of the peripheral chips, what would need to be recreated in order to have a new falcon without needing to find broken ones to canibalize?

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Re: Beginning of very long journey

Postby mpattonm » Sun Nov 10, 2019 9:28 pm

christos wrote:Anyway, assuming you can still find CPU and dsp in the market, as well as many of the peripheral chips, what would need to be recreated in order to have a new falcon without needing to find broken ones to canibalize?

SDMA, Combel, Videl. Everything else is generic and available.

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Re: Beginning of very long journey

Postby shoggoth » Mon Nov 11, 2019 1:21 am

The DSP is a bit worrysome tbh
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Re: Beginning of very long journey

Postby alienkidmj12 » Tue Nov 12, 2019 8:32 pm

this is so awesome, im glad the board is being recreated, such an awesome machine, if more people have one, then maybe more software development, its all looking good.

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Re: Beginning of very long journey

Postby alienkidmj12 » Tue Nov 12, 2019 8:35 pm

what happened to the external scsi connector :)

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Re: Beginning of very long journey

Postby mpattonm » Fri Nov 15, 2019 2:34 pm

alienkidmj12 wrote:what happened to the external scsi connector :)

Replaced by an internal 50pin, but I plan to make plugin add-on with Falcon HD DSUB.

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Re: Beginning of very long journey

Postby swapd0 » Sun Dec 01, 2019 4:47 pm

What about using a fpga as cpu and use the 68080 core?

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Re: Beginning of very long journey

Postby swapd0 » Sun Dec 01, 2019 4:48 pm

I could be nice to use a fpga with the 68080 core as CPU...

PD: sorry I for the double post.

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Re: Beginning of very long journey

Postby iceman » Sat Dec 14, 2019 1:56 pm

You guys do not cease to amaze me with your ingenuity.
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Re: Beginning of very long journey

Postby catmando » Sun Dec 15, 2019 2:38 pm

Will it be possible to add jag pad support somehow?
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Re: Beginning of very long journey

Postby dbsys » Sun Dec 15, 2019 4:54 pm

I do not see the ROM port. Is there an internal connector I can use to attach my Cubase dongle?

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Re: Beginning of very long journey

Postby mpattonm » Mon Dec 16, 2019 8:03 pm

No. ST ROM port edge board connectors are not possible to get _anywhere_ and I have spent quite a long time searching for them.

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Re: Beginning of very long journey

Postby mpattonm » Tue Dec 17, 2019 5:16 pm

czietz wrote:
mpattonm wrote:USB: Phillips ISP1160

Just be warned that you'll encounter some supply-chain issues with the ISP1160. It's long discontinued, hence it is only available at more or less dubious obsolete parts dealers. During manufacture of the Lightning VME we encountered among other things: 1. ISP1160s where the leads were corroded to such a degree that -- even though we extensively cleaned them -- we suffered a huge yield loss due to poor solderability. 2. A shipment of ISP1160s -- claiming to be new-old stock -- in which more than half of them were basically dead, one of the power pins being shorted to ground. They must have been used and severely mistreated during their previous life to fail in such an obvious way. 3. Some random faults within the chip that are fortunately caught during our end-of-line test.

All I want to say: Be sure not to buy from the cheapest source and prepare to have some issues with that chip.

Fun fact: I have bought a few sets of both chips off eBay and while ISP1160 were all OK (some needed their contacts to be cleaned in IPA), none of RTL8019AS worked. Luckily, these are still available at Mouser.

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Re: Beginning of very long journey

Postby dbsys » Thu Dec 26, 2019 8:35 am

mpattonm wrote:No. ST ROM port edge board connectors are not possible to get _anywhere_ and I have spent quite a long time searching for them.


Thanks for making it clear that the "new" Falcon will not have ROM Port support.

You could at least have provided the functionality on board, using some sort of multipin connector for future or third party use.

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Re: Beginning of very long journey

Postby Cyprian » Thu Dec 26, 2019 1:39 pm

+1 dbsys
would be cool to have possibility to use Cubase Audio
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Re: Beginning of very long journey

Postby PeterS » Thu Dec 26, 2019 3:46 pm

Could an alternative connector be used allowing cartridges to be modified ?

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Re: Beginning of very long journey

Postby dhedberg » Thu Dec 26, 2019 4:19 pm

mpattonm wrote:No. ST ROM port edge board connectors are not possible to get _anywhere_ and I have spent quite a long time searching for them.

Would it not be possible to harvest connectors from existing ST, STE, TT, Falcon motherboards? I bet there's quite some non-functional boards in people's possession.
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Re: Beginning of very long journey

Postby TheNameOfTheGame » Thu Dec 26, 2019 4:31 pm

Exactly, we can source our own if necessary. I have more than a few donor boards I could use.

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Re: Beginning of very long journey

Postby mpattonm » Sat Dec 28, 2019 4:20 pm

dbsys wrote:You could at least have provided the functionality on board, using some sort of multipin connector for future or third party

Yes, that's happening. Internal expansion 20/50 connector has been expanded with cartridge port signals.

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Re: Beginning of very long journey

Postby mpattonm » Sat Dec 28, 2019 4:21 pm

Cyprian wrote:+1 dbsys
would be cool to have possibility to use Cubase Audio

If you can find a source for ST ROM port connector, I will be happy to add it. Really.

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Re: Beginning of very long journey

Postby mpattonm » Sat Dec 28, 2019 4:22 pm

PeterS wrote:Could an alternative connector be used allowing cartridges to be modified ?

Whats the point? All current cartridges would be useless anyway.

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Re: Beginning of very long journey

Postby frank.lukas » Sat Dec 28, 2019 4:30 pm

All the Midi/Music Stuff need the Romport. So a 40pin connector (IDE Like) would be nice ...

BEST have it I think.
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Re: Beginning of very long journey

Postby Cyprian » Sat Dec 28, 2019 7:48 pm

mpattonm wrote:
PeterS wrote:Could an alternative connector be used allowing cartridges to be modified ?

Whats the point? All current cartridges would be useless anyway.

it the worst case, an user can reuse a connector from dead ST
Lynx II / Jaguar / TT030 / Mega STe / 800 XL / 1040 STe / Falcon030 / 65 XE / 520 STm / SM124 / SC1435
SDrive / PAK68/3 / Lynx Multi Card / LDW Super 2000 / XCA12 / SkunkBoard / CosmosEx / SatanDisk / UltraSatan / USB Floppy Drive Emulator / Eiffel / SIO2PC / Crazy Dots / PAM Net
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