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Author Topic: SD card interface (Read 103232 times)

Offline weirdocollector

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Re: SD card interface
« Reply #195 on: 2014.May.19. 09:12:53 »
A good way to start the week ! :ds_icon_cheesygrin:

Thanks a lot Saint !

Offline Saint

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Re: SD card interface
« Reply #196 on: 2014.May.20. 21:15:24 »
Quote from: Zozosoft
If it is done, then try to test with this little program: for the first run create 4MB TESTFILE.BIN with pseudo random numbers.
At the second run when the .BIN exist verify it.
If error found then halt with flashing border color, if all ok will return to ENTERPRISE screen.
Getting some weird results here. I can create and delete directories with MKDIR and RMDIR from an EXDOS prompt, but running this test program fails (border flashing).

Could I have the source code Zozo, so I can put some logging in and try and figure out what is happening? Not sure if its maybe the verify routine which isn't working right...

Offline Zozosoft

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Re: SD card interface
« Reply #197 on: 2014.May.20. 21:52:12 »
0) border flashing, or slowly changing color? (it is happen at each 16K read/write, for a lifesign :) )
1) are you using EXDOS 1.4?
2) for EXDOS operations try to switch on VERIFY, :VAR 70 ON
3) there is the source

Offline Saint

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Re: SD card interface
« Reply #198 on: 2014.May.20. 21:58:13 »
Quote from: Zozosoft
0) border flashing, or slowly changing color? (it is happen at each 16K read/write, for a lifesign :) )
1) are you using EXDOS 1.4?
2) for EXDOS operations try to switch on VERIFY, :VAR 70 ON
3) there is the source
Ahhh, it's slowly changing colour. I just thought there was an error, but it must be working! :oops:

Thanks for the info on verify, I'll try that out, and thanks for the source. :)

Offline Saint

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Re: SD card interface
« Reply #199 on: 2014.May.20. 22:19:16 »
Ok, I left it for a while and it created a 4mb file, then verified ok. So it looks like write is working file... :)

I just have the flash manager to finish off now and tidy up the flash location for the cartridge space etc. Getting close to finishing. :ds_icon_cheesygrin:

Offline Saint

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Re: SD card interface
« Reply #200 on: 2014.May.21. 15:31:43 »
Where can I find the fast RAM test ROM Zozo?

Offline Zozosoft

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Re: SD card interface
« Reply #201 on: 2014.May.21. 15:40:13 »
Quote from: Saint
Where can I find the fast RAM test ROM Zozo?

Offline Saint

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Re: SD card interface
« Reply #202 on: 2014.May.21. 22:51:11 »
Great, thanks Zozo. I now have it booting on my old unmodified Enterprise with the fast ram test and SD CARD interface working.

Just the flash rom manager to finish now...

Offline weirdocollector

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Re: SD card interface
« Reply #203 on: 2014.July.16. 00:43:14 »
Hi,

any further progress on this project?

Thanks in advance.

Offline Saint

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Re: SD card interface
« Reply #204 on: 2014.July.16. 10:32:37 »
I'm basically ready to make them now, I just need to sort out the edge connector. As it is, I just have a cut end edge connector, which is quite easy to connect to the Enterprise misaligned, so it wont work. I need to come up with some end caps for the edge connector to make sure it connects correctly. This has been what is holding me up...

Offline Zozosoft

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Re: SD card interface
« Reply #205 on: 2014.July.16. 11:56:12 »
Cut a 2 pins longer connector and on both side solder the extra pair of pins, got a end barriers at both side.
If the original end of the connector are "EP compatible" then can be used, and need to do the extra pin soldering at the other side.

Offline Saint

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Re: SD card interface
« Reply #206 on: 2014.July.16. 12:08:41 »
Thanks for the tip, I will try. It looked like it would be too wide for the Enterprise case, I guess it will just fit!

Offline jltursan

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Re: SD card interface
« Reply #207 on: 2014.July.16. 19:24:02 »
Great news anyway!, seems that the thougest part is already finished :-)

Offline StarshipUK

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Re: SD card interface
« Reply #208 on: 2014.September.02. 00:58:37 »
I notice the last post was in July. Is this available to purchase yet please?

Offline dmacoco

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Re: SD card interface
« Reply #209 on: 2014.September.10. 03:56:54 »
Hello,

I'm a french fan of this computer, with its fantastic abilities. This sd interface will allow enterprise users to try games, and making our enterprise to be more alive
This SD interface will allow me to use it easily again. 

How saying to the creator of the interface to take me in account in case of going in a production phase of the card.
Thanks.