MicroCosmos sad news...

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Askja
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MicroCosmos sad news...

Postby Askja » Sun Jun 18, 2017 9:15 am

Hi all,
oh, I am sad, very disapointed.
Some years ago I bought the Ultra Satan disk but I never really used it because of a bug due to my TOS version it seems...
I can read files from the SD card, but if one time I try to write on it, it destroy all the datas of the SD card :(

Then, last month, I decided to order the microCosmos, I thought the problem was solved but it is exactly same :cry:
I can read files, but if I write, all the SD is corrupted.
Greg. aka Pandafox from HMD aka Imperator from The Megabusters aka Askja from Toons :cheers:
Now https://www.behance.net/ufactory :twisted:

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simonsunnyboy
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Re: MicroCosmos sad news...

Postby simonsunnyboy » Sun Jun 18, 2017 9:20 am

This is probably a case of the faulty DMA access. Try the devices on different ST machines, STF preferrable.
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dhedberg
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Re: MicroCosmos sad news...

Postby dhedberg » Sun Jun 18, 2017 9:24 am

Askja wrote:Hi all,
oh, I am sad, very disapointed.
Some years ago I bought the Ultra Satan disk but I never really used it because of a bug due to my TOS version it seems...
I can read files from the SD card, but if one time I try to write on it, it destroy all the datas of the SD card :(

Then, last month, I decided to order the microCosmos, I thought the problem was solved but it is exactly same :cry:
I can read files, but if I write, all the SD is corrupted.

Sad to hear about your experience but I doubt you can blame the UltaSatan or the MicoCosmos for the problems. You need to fix your computer as the problem is most likely DMA related.
You can probably sell one of the devices pretty easily if you don't have any use for both of them.
Daniel, New Beat - http://newbeat.atari.org

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Askja
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Re: MicroCosmos sad news...

Postby Askja » Sun Jun 18, 2017 9:28 am

No no, I don't blame anybody, the Jookie work is admirable!
It is only bad luck for me :)
The best solution should to buy another STE, probably I will do it one day.
Greg. aka Pandafox from HMD aka Imperator from The Megabusters aka Askja from Toons :cheers:
Now https://www.behance.net/ufactory :twisted:

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Re: MicroCosmos sad news...

Postby kodak80 » Sun Jun 18, 2017 9:30 am

Askja wrote:Hi all,
oh, I am sad, very disapointed.
Some years ago I bought the Ultra Satan disk but I never really used it because of a bug due to my TOS version it seems...
I can read files from the SD card, but if one time I try to write on it, it destroy all the datas of the SD card :(

Then, last month, I decided to order the microCosmos, I thought the problem was solved but it is exactly same :cry:
I can read files, but if I write, all the SD is corrupted.


I had the same issue with a SatanDisk on my STE and I replaced the CPU with an MC68HC000FN8 processor and my issue with writing causing corruption is resolved. The HC processor is lower power and this stops the DMA bus issues. For $10 this was a really cheap and easy fix. Worth a try if you have an STE.
Atari 1040 STE | Atari 1040 STFM | Atari 1040 STF | Kryoflux & Supercard Pro Flux boards
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Askja
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Re: MicroCosmos sad news...

Postby Askja » Sun Jun 18, 2017 9:34 am

kodak80 wrote:I had the same issue with a SatanDisk on my STE and I replaced the CPU with an MC68HC000FN8 processor and my issue with writing causing corruption is resolved. The HC processor is lower power and this stops the DMA bus issues. For $10 this was a really cheap and easy fix. Worth a try if you have an STE.


Oh! Interesting!
Can you explain to me in provate message how to please, if you have free time, nothing hurry. :cheers:
Greg. aka Pandafox from HMD aka Imperator from The Megabusters aka Askja from Toons :cheers:
Now https://www.behance.net/ufactory :twisted:

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kodak80
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Re: MicroCosmos sad news...

Postby kodak80 » Sun Jun 18, 2017 9:47 am

PM sent but here is the information as well:

Exxos has this covered on his website:
http://www.exxoshost.co.uk/atari/last/DMAfix/#LATEST
Look for the update on April 13, 2017 as it covers why this fixes the DMA corruption issue.

Basically the HC version of the 68000 processor is a low power CPU and puts less power into the DMA bus and stops the noise on the bus which is what causes the corruption occuring. I purchased the CPU from an eBay seller in China and simply swapped the CPU. Once swapped, I have tried copying a larger volume of files to the HDD and no corruption. I used to get corruption after a few file copies but now I have not had any corruption on my SatanDisk.

I supposedly had the DMA chip that is faulty but swapping the CPU was easier as it is socketed. My DMA chip was soldered to the motherboard and my soldering skills are poor. Here is a link to the CPU I purchased that fixed my issue:
http://www.ebay.com.au/itm/272638312113
Worth a try for the price of the CPU. You just need to be careful extracting the old CPU from the socket.
Atari 1040 STE | Atari 1040 STFM | Atari 1040 STF | Kryoflux & Supercard Pro Flux boards
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Askja
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Re: MicroCosmos sad news...

Postby Askja » Sun Jun 18, 2017 7:57 pm

Thanks a lot!! :)
Greg. aka Pandafox from HMD aka Imperator from The Megabusters aka Askja from Toons :cheers:
Now https://www.behance.net/ufactory :twisted:


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