[Ham-Computers] SDHC Card reading?

[Ron Youvan]

   Kurt  KD7JYK DM09 wrote:

> I'm using Windows XP, home edition, build 2600, service pack 3.

> I have an IOGear multi-card reader on it, everything works fine, only
used > cards up to 32GB in the past.
> I bought a SanDisk 64GB SDHC card today and plugged it in.  Clicking
on the
> drive icon resulted in an error message of "The Card In Drive H: Is Not
> Formatted" with the option to format.  Formatting did not work, nothing
> happened.  I clicked on check disk through properties, and got a message
> along the lines of "Cannot Read File Type".

> Is it likely the SDHC card is no good, or more likely there is
> hardware/software limitations I don't know about?

    Your card reader is incapable of dealing with memory cards that are
of that size or type.  SDHC only usable to 32 Gig, above 32 Gig the
format changes, the name changes to SDXC.
   <<
According to the SD specifications, any SD card larger than 32GB is an
SDXC card and has to be formatted with the exFAT filesystem. This means
the official SD Formatter tool will always format cards that are 64GB
or larger as exFAT.
   >>

   I use only LINUX which is not as limited as the expensive American
OSs.


   MORE:


Windows

The standard formatting tools built into Windows are limited, as they
only allow partitions up to 32GB to be formatted as FAT32, so to format
a 64GB partition as FAT32 you need to use a third-party formatting
tool. A simple tool to do this is FAT32 Format which downloads as a
single file named guiformat.exe - no installation is necessary.

Run the SD Formatter tool first with "FORMAT SIZE ADJUSTMENT" set to
"ON", to ensure that any other partitions on the SD card are deleted.
Then run the FAT32 Format (guiformat.exe) tool, ensure you choose the
correct drive letter, leave the other options at their default
settings, and click "Start". After it has finished, you can proceed
with the rest of the NOOBS instructions.

If the FAT32 Format tool doesn't work for you, alternative options are
MiniTool Partition Wizard Free Edition and EaseUS Partition Master Free
which are "home user" versions of fully featured partition editor
tools, and so not as straightforward to use.

   from: 
https://www.raspberrypi.org/documentation/installation/sdxc_formatting.md

-- 
    Ron  KA4INM - Youvan's corollary:
                  Every action results in unwanted side effects.