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Ipod video 5.5g 256gb SSD - Zheino SSD

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ecereb:
I would like to help in any I can. 

First of all, I am running Apple’s firmware 1.3.  It is 4 days now and the battery is still fully charged.  Also, the iPod running Apple’s firmware does shutdown after about two to three hours.  I have to press the center button restart the Apple firmware, the same as one would do with RockBox.

As for this SSD, it is supposed to act and perform the same way as does a mechanical hard drive.  However, unlike a mechanical drive where a seek instruction is given and it takes time for the head to relocate and the rotation to get around to the correct position, the seek time for this SDD is virtually 0 or just a few machine cycles.  So, if a request for a seek is given and the firmware goes back to wait for an interrupt, it might be arriving too late because the interrupt had already occurred.

That’s the only thing I can think of. 

I did write disc handlers in college, but this was back in the antiquated 70s days of cylinder – track – sector. Today, I’ve heard that the modern PC hard drive’s internal firmware handles all this.  All the driver programmer has to do is give the controller a byte offset & length, a destination memory address and the controller supposedly does the rest.  Of course, this is merely speculation on my part.

So, is there anything I can do to help?

Thanks

saratoga:

--- Quote from: ecereb on April 05, 2016, 04:02:55 PM ---As for this SSD, it is supposed to act and perform the same way as does a mechanical hard drive. 

--- End quote ---

Since its ten years newer, it's likely using a newer version of the ATA spec.  Could take a look at that and see what it supports and what mode it's being put into.

Might also be worth looking into if the the drive needs to be explicitly unpowered, or if the power management chip on your ipod could be programmed to cut power to the drive (if in fact that is even the problem).  I don't know anything about the ipod 5g or the drive you bought, so I can't give you specific advice. 

ecereb:
To answer the question about ATA spec.
I replaced a
TOSHIBA MK2431GAH ZIF 240gb 3.3v @ 500mAh HD running rockbox-ipodvideo-3.13 firmware
with a 
Zheino CHN-18ZIF001M-256 ZIF 256gb 3.3v 100mAh SSD running beyondwind.duckdns.org/downloads/rockbox firmware.

The possible issues are:  I used the beyondwind.duckdns.org/downloads/rockbox.zip firmware instead of the stable port rockbox-ipodvideo-3.13.zip firmware. The reason is the iPod posts an error -11 with the rockbox-ipodvideo-3.13 firmware.  The beyondwind.duckdns works with the above SSD.

The issue I am having is the SSD draws excessive power using the beyondwind.duckdns firmware. 

If I boot the Apple firmware V1.3, the SSD works and does not draw excessive power.

A question a lot of have is, can someone fix the SSD issue in rockbox-ipodvideo-3.13 or
can someone tell us how to fix the power consumption issue in the beyondwind.duckdns version?

Thanks

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