Most functions of my CosmosEx are working very well. Harddisks, network- and usb-drives are configured and i can use them as expected. Thanks to Jookie for this great hardware!
But i have still two problems with the floppy emulation (a big and a small one). First some information: I use the cosmosEx externaly, therfore i tuned my Atari 1040 STE with a switch, to change Floppy A with Floppy B. The drive ID of the cosmosEx-Floppy-configuration is set to drive 0 (at setting '1' i couldn't access the emulated floppy).
This works, but there is the first (small) problem.
1. When i access to the emulated CosmosEx-Floppy (no matter if it's set to drive A or drive B via the hardware-switch), the motor of the other (the physical) floppy starts to run. Has anyone an idea of the reason and how to solve it?
2. The bigger problem is, that there are lots of read errors, while loading images from the emulated drive. To encircle the error, i used Fastcopy and scanned some virtual disks. Fastcopy also showed lots of RNF/Seek- or checksum-errors.
I copied some diskimages with Fastcopy to real disks. While reading the source, i had to commit and reread lots of sectors because of the errors, lots of times. But after a while i had a functional physical copy of the image. I did that with about 5 images, and all of them are starting now without any read-write-problems from the physical drive (with some other problems at runtime, but that´s another story). So there cannot be any fundamental problem with the data integrity of the disk-images. When i read the same image several times, the errors are not always at the same sectors, the problem appears to occur randomly.
To be sure that the problem does not come from the self-made cable, i opened the Atari and changed the physical drive with the cosmosEx. So the cosmosEx was now connected internal and the physical drive was extern, using the self-made cable. The problem was still at accessing disk-images from the cosmosEx and i could read physical disks without problems. So, there is no problem with the cable.
Another (maybe important) information: For powering the cosmosEx i use an USB-Charger with an output of 2.1 Ampere. I also tried it with an iPhone-charger.
Any ideas of the reason?
Last edited by Matthias
on Mon Dec 08, 2014 2:43 pm, edited 1 time in total.