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Author Topic: SD card interface (Read 314917 times)

Offline Starej_Mraf

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Re: SD card interface
« Reply #270 on: 2014.December.09. 10:58:59 »
I want one too... :) I haven't found any price too...
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Offline Z80System

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Re: SD card interface
« Reply #271 on: 2014.December.09. 11:06:40 »
You have to write an e-mail to:

vortyex at freemail dot hu

You can ask the price, or sign up to an SD card at that e-mail address.
Vortyex communicates the "orders" only by e-mail.
« Last Edit: 2014.December.09. 11:50:58 by Z80System »
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Z80 System

Offline Bagpuss22

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Re: SD card interface
« Reply #272 on: 2014.December.10. 00:53:56 »
Mine was shipped today :ds_icon_cheesygrin:

Question, Is there a limit on the number of partitions I can have?  I have a 1GB SD card
and I know it currently works with FAT12 which has a limit of 32Mbyte.

Cheers

Russ
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Offline Zozosoft

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Re: SD card interface
« Reply #273 on: 2014.December.10. 08:53:48 »
Quote from: Bagpuss22 on 2014.December.10. 00:53:56
Question, Is there a limit on the number of partitions I can have?  I have a 1GB SD card
and I know it currently works with FAT12 which has a limit of 32Mbyte.
Just the drive letters :-) from F: to Z:
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Offline Bagpuss22

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Re: SD card interface
« Reply #274 on: 2014.December.10. 19:25:40 »
Thanks Zozo.

Are you working on the FAT16 side of this?

I am assuming at the moment this is NOT compatible with the floppy
interface, as Gergely did make reference to this.

Regards

Russ
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Offline Zozosoft

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Re: SD card interface
« Reply #275 on: 2014.December.10. 20:01:21 »
Quote from: Bagpuss22 on 2014.December.10. 19:25:40
Are you working on the FAT16 side of this?
Will be working on it. The SD driver supports it, EXDOS needs to be modified.
But first I need to finish the EXDOS 1.4 :oops:

Quote
I am assuming at the moment this is NOT compatible with the floppy
interface, as Gergely did make reference to this.
It is compatible.
Just a big bug in the EXDOS, it will freeze if WD177x is not present. It happens before the ENTERPRISE screen...
Then for the SD interface at default modified EXDOS installed to the ROM, where the floppy DISKIO returns immediately with "Not ready" error, then the code with the bug does not run.
It is possible to install normal EXDOS version to the SD interface and using both SD and floppy. But with this configuration the EXDOS card always needs to be connected.
It is also possible not to install any EXDOS to SD interface, using the EXDOS ROM from the EXDOS card. In this situation  the EXDOS card ROM should be upgraded to version 1.4 because the big bug found (file system damage in expanded EXDOS system).

This "WD not present" bug is the most impotant to do for the final EXDOS 1.4, when done then there's no need for separate versions for non-floppy and with-floppy systems.
« Last Edit: 2014.December.17. 14:58:23 by szipucsu »
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Offline Bagpuss22

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Re: SD card interface
« Reply #276 on: 2014.December.10. 23:14:28 »
OK.

I am assuming that, for now, I can run the SD card without the floppy interface and all will be well.

Russ
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Offline gflorez

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Re: SD card interface
« Reply #277 on: 2014.December.20. 22:16:19 »
I've found that Isdos doesn't start if not present the A: floppy disk, but that can be bypassed with ASSIGN a: f:

On the other hand, now that the "big" partitions allow  different GUIs in the same drive..... I need a way to start EGI, Basic or SymbOS.

But CP/M 2.2 (ISDOS) doesn't  have conditionals to do real batch files and I've found a powerful shell that loads on ISDOS. I don't know if any of you know of it, so I must do more test. Simply extract the files on the root directory or on other created for that and execute sh at the prompt. There is a PDF showing its usage.
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Offline Zozosoft

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Re: SD card interface
« Reply #278 on: 2014.December.22. 11:38:07 »
FDISK 0.8 now supports both IDE and SD drives.

At the partition list, press C on "undefinied" entry to create a new partition. Currently only primary partitions can be created.
For the next step select the free block from the free space list. Then you need to enter the type byte (1=FAT12, 4=FAT16, 6=BIGDOS, 12=FAT32, etc), default 1 = FAT12.
The start sector has to be inside the free block, the default is the first sector of free block. Size in sectors, the default is 65535 =32M. For default value just press enter.
After creating the partitions the system needs cold restart so that the IDE/SD driver detect the new partitions, and use EXDOS FORMAT command to format new partitions.
(Will be added format option)

At the partition list, pressing CTRL+DEL on an existing partition will delete it, you need to answer capital Y to the are-you-sure question to execute the deletion.

Pressing Enter on Extended partition will list the logical drives, other operations will come... :oops:

ESC leaves the current list.


The program was written in IS-BASIC, thanks for Bruce! :-D I think you can't do similar in other BASICs.
« Last Edit: 2014.December.22. 14:22:24 by szipucsu »
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Offline dmacoco

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Re: SD card interface
« Reply #279 on: 2014.December.26. 15:01:35 »
Hello,

I've received my sd interface and tried it on my sixty-four.

It works fine but it seems that memory is a big barrier for a lot of software having "insufficient memory" for a large number of softwares
Does anybody have a solution ?
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Offline Zozosoft

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Re: SD card interface
« Reply #280 on: 2014.December.26. 15:16:44 »
Quote from: dmacoco on 2014.December.26. 15:01:35
It works fine but it seems that memory is a big barrier for a lot of software having "insufficient memory" for a large number of softwares
Yes, only these games are compatible with 64K machines.

Quote
Does anybody have a solution ?
The best way is to buy internal memory expansion from Saint.
« Last Edit: 2014.December.27. 13:20:09 by szipucsu »
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Offline Zozosoft

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Re: SD card interface
« Reply #281 on: 2015.January.03. 19:04:06 »
FDISK 0.9
Enhanced Extended partition handling:
-The list now includes the free spaces.
-By pressing C you can create partition (called as logical drive in DOS/Windows) in the extended partition, similar to the primary partition creation.
-Existing partition can be deleted from Extended, pressing CTRL+DEL, similar to the primary deletion.
-In the Extended list you can switch to Advanced list mode with CTRL+L where all detailed information is displayed. CTRL+N switches back to normal mode

Now empty SD Card (or IDE hdd) can be fully partitioned on the Enterprise. I suggest one 32M FAT12 for the first primary, SymbOS can be loaded from here, and additional Extended with another 8 FAT12 partitions for the EXDOS and Enterprise programs. Rest of the space is optional, for example FAT16 or FAT32 for the SymbOS.

After the partitioning, a cold restart is needed to redetect and format the new partitions.
In the version 1.0 Quick Format option will come.

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« Last Edit: 2015.January.08. 12:57:55 by szipucsu »
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Offline BruceTanner

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Re: SD card interface
« Reply #282 on: 2015.January.03. 21:46:45 »
Wow! Looks impressive! :ds_icon_cheesygrin:

Can I suggest a few lines at the bottom of the screen saying C=Create etc :?:
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Offline Zozosoft

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Re: SD card interface
« Reply #283 on: 2015.January.03. 21:53:30 »
Quote from: BruceTanner on 2015.January.03. 21:46:45
Wow! Looks impressive! :ds_icon_cheesygrin:
Written in IS-BASIC :-D

Quote
Can I suggest a few lines at the bottom of the screen saying C=Create etc :?:
Ok, will be added in 1.0 :-)
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Offline SzörG

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Re: SD card interface
« Reply #284 on: 2015.January.05. 00:13:31 »
Happy (New) Retro Year Everyone! :-)
The next dose of ENTERPRISE 128 SD Adapter at February 2015 (a few weeks delay possible).
I changed my email address, I hope better than the previous. :-)
vortyex at gmail dot com
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