SD Card Settings Saving failed. Capture/replay in progress?

[Semper Talis]

Hi all,

I have an interesting problem to chew on.

I tried to make a backup for the SD-Card wich came with the kit.

I use a 256 MB card and formatted it to FAT16 .

Copy Paste from the original card.

First problem , 

the Altair does start in the default settings , Arduino programming port @115200 baud

The original card was set to A6/A7 and 9600 baud .

Is the settings file somehow hidden or why is it that the original settings are not copied ?

Second problem,

If I change the settings to A6/A7@9600 baud and to save it as default setting , I get:

Command: S

Save as config # (0=default): 0

Saving failed. Capture/replay in progress?

What is going on? I Just turn on the Altair , not touch any other switches than ON/Off and then STOP+AUX1 Up

Any help is much appreciated.

BTW I tried different sd-cards and computer ( OSX, Windows+Linux)

Wolfgang

[Semper Talis]

Update , I figured out the Altair is not recognizing the sd card correctly

When I go into the Manage Filesystem setting I get 

ID Type            Name        Size
-----------------------------------

Filesystem size: 16384 bytes
         in use: 4 bytes
      available: 16380 bytes

For the 256 MB card , so definitely not what I would expect.

[Antonio Tamairón]

You have to compile firmware using SDFat version 1.1.xx (check what version work for you) and SD card works fine.

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[Semper Talis]

Hi Antonio ,

You have to help a new Altair due owner here .

What do you mean with compile firmware ?

Do I have to reprogram the Arduino DUE ?

I got this kit just two weeks ago , I guess my firmware is the latest or are there any special settings I have to do ?

Any way I can verify what firmware is on my DUE ?

Regards, Wolfgang

[Antonio Tamairón]

Hi.

I have Altair 8800 simulator DIY version. I compiled the firmware with Arduino ide, but I installed an old version of SDFat library because the new ones not working with SD on Altair simulator.

Then. Open the Altair simulator project with Arduino IDE, install an old version of SDFat library for example 1.1.10, and try to compile if finally compile well upload firmware to Arduino DUE and check if now SD is recognized in not case try a different version of SDFat library.

I hope it could help you.

[Antonio Tamairón]

Sorry. I red again your message.

But that solution is if your SD card is not detected. In your case, maybe the setting is directly on Arduino DUE EPROM memory (not in SD) but I don't know about what could be happening.

[Semper Talis]

Hi Antonio ,

Thanks for the explanation.

I will try it out , hope it helps.

I got one SD card working by now , a 2 GB card which I formatted on a Windows machine with the SD Formatter .

But no luck with my 256MB cards .

[Chris Davis]

Not all low-capacity microSD cards are compatible with the Altair emulator. Very early microSD cards (commonly found in older cell phones) use an earlier controller implementation and may not initialize correctly. The supplied card is known to be compatible. As a rule of thumb, cards with the label printed in the "landscape" orientation (like the card on the right) are usually compatible, while cards with the label printed in the "portrait" orientation (like the card on the left) are almost always not going to work.  This is not a guaranteed way to determine if they'll work, but it's a good rule-of-thumb.

[Semper Talis]

Sorry for the late reply , I thought I did so already .

Here the picture of the card I use .

[Semper Talis]

Hi All, just an update on my quest to get the 128MB card working.

I followed Antonio's advise and worked with the source code .

Gee, I opened a can of worms :-)

I went trough the SDF library revisions and found that at one time Bill Greimann changed the code and the ALTAIR8800 source code was using not anymore supported calls.

But even the library versions I tried do not make the SD cards visible to the ARDUINO DUE .

SO this is the end of the stick for now , I will try to mount the 128MB cards seperately and try to find out if this is a problem with the old SDF Libray versions or a general problem with the SD cards I have.

BTW, I have no trouble to mount them on my Mac,PC and Linux , they work just fine.

I also tried all kind of formatting options , so I can rule out that possibility.

Another thing is that the source code does not really work out of the box and I had to make changes to my ANDROID environment to make it even compile right.

So many options are by default turned off in the source code :-) 

I still could not find the switch to enable the A6/A7 serial port ...also something I put for now on the shelf and pick it up some later time.

But this little side trip showed me there are some things I can change in the existing setup and I want to experiment with it in the future.

Last thing , the pre-compiled .bin was a live saver and if anybody is using OSX, you can download a OSX BOSSAC to load it up , no PC needed .

( I think BOSSAC is also part of some OSX ARDUINO IDE setups but I am not sure )