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Greg Utas5-Jul-21 5:38

Greg Utas

5-Jul-21 5:38

It has desiccated with age, so bathe it in water for 15 minutes.

Robust Services Core | Software Techniques for Lemmings | Articles
The fox knows many things, but the hedgehog knows one big thing.

musefan5-Jul-21 6:52

musefan

5-Jul-21 6:52

Your SD card is probably fine and this is more a formatting issue or getting the PI to read it properly.

Unfortunately, the only experience I have with a PI was setting up "Retro PI" and that was 4 years ago. That software has a specific feature you must do in order to get it to address the whole SD card. The setting was:

Raspi-Config > 7. Advances Options > A1 Expand File System

Obviously, that isn't going to be much help if you aren't using Retro PI. But I can only assume there must be a similar feature/step required in whatever OS you are using on it.

k50545-Jul-21 7:11

k5054

5-Jul-21 7:11

No, not a problem with the filesystem. The SD itself reports that its only 30.61 MB:

Shell

[root@localhost ~]# fdisk -l /dev/sdd
Disk /dev/sdd: 30.61 MiB, 32096256 bytes, 62688 sectors
Disk model:  Storage Device 
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
[root@localhost ~]#

The drive is clearly marked as a 16GB drive.

I'm guessing its probably just a bad chip that managed to get through quality control --- assuming they test every unit. But maybe someone knows something that might get the card to find its missing capacity. But then, should one trust it? Probably not...

Keep Calm and Carry On

Daniel Pfeffer5-Jul-21 7:29

Daniel Pfeffer

5-Jul-21 7:29

It does sound like a production issue. Given the low cost of 16GB SD cards, I see two options:

Write to SanDisk (now Western Digital) customer support, and see if they'll give you a replacement
Bin it and buy new

Even if there is a way to recover the full capacity, I wouldn't trust it.

Freedom is the freedom to say that two plus two make four. If that is granted, all else follows.
-- 6079 Smith W.

Mike Hankey5-Jul-21 8:08

Mike Hankey

5-Jul-21 8:08

Try this SD Memory Card Formatter | SD Association[^] before trashing.

The less you need, the more you have.

Why is there a "Highway to Hell" and only a "Stairway to Heaven"? A prediction of the expected traffic load?

JaxCoder.com

enhzflep5-Jul-21 11:29

enhzflep

5-Jul-21 11:29

Are you sure it's a genuine SanDisk card? Was the seller reputable and unlikely also to have been naive enough to buy from a dodgy supplier?

You can definitely still buy micro SDs in the megabyte range. I got some the other month for around a dollar each for a uController project.

k50545-Jul-21 12:55

k5054

5-Jul-21 12:55

It was Canakit. I expect that they would be on the level. Though the card did come in a small antistatic bag, rather than on a SanDisk bubble-pack card. So maybe they purchased a bulk lot, with the odd one being bad, or mislabeled. Who knows? It doesn't really seem worth pursuing, its only a 16GB card, and I have several 32G cards available to me. For ~$7, its probably more than that in postage. At my hourly rate, I've probably spent more than that wingeing about it here ... Smile | :)

Keep Calm and Carry On

enhzflep5-Jul-21 14:50

enhzflep

5-Jul-21 14:50

k5054 wrote:
At my hourly rate, I've probably spent more than that wingeing about it here ...

I've often joked that I'm well within my rights to spend a week making a program that'll save me a few minutes each time I do a task.

den2k885-Jul-21 22:01

den2k88

5-Jul-21 22:01

At this point I would write to your supplier to notify them of the problem and use another card - they're cheap and ubiquitous.

GCS d--(d-) s-/++ a C++++ U+++ P- L+@ E-- W++ N+ o+ K- w+++ O? M-- V? PS+ PE- Y+ PGP t+ 5? X R+++ tv-- b+(+++) DI+++ D++ G e++ h--- r+++ y+++* Weapons extension: ma- k++ F+2 X

User 99160806-Jul-21 4:31

User 9916080

6-Jul-21 4:31

Most likely, the SD card has the Linux OS on it already (Raspian), which means that the SD card is probably ok. Boot up on the SD card and log in. The user name should be pi and the password is raspberry. Once at the command prompt, type in sudo raspiconfig. Once there, go to the advanced options. There should be an option to expand the drive. It will utilize the rest of the 16gb space.

This is common with the Raspberry Pi, especially with the Cana Kit.

"When you are dead, you won't even know that you are dead. It's a pain only felt by others; same thing when you are stupid."

Ignorant - An individual without knowledge, but is willing to learn.
Stupid - An individual without knowledge and is incapable of learning.
Idiot - An individual without knowledge and allows social media to do the thinking for them.

modified 19-Nov-21 21:01pm.

Thought of the Day

OriginalGriff5-Jul-21 4:15

OriginalGriff

5-Jul-21 4:15

Is the human that opens the cat food tin a purrson?

"I have no idea what I did, but I'm taking full credit for it." - ThisOldTony
"Common sense is so rare these days, it should be classified as a super power" - Random T-shirt
AntiTwitter: @DalekDave is now a follower!

Mike Hankey5-Jul-21 4:46

Mike Hankey

5-Jul-21 4:46

Merely a dispenser. Smile | :)

The less you need, the more you have.

Why is there a "Highway to Hell" and only a "Stairway to Heaven"? A prediction of the expected traffic load?

JaxCoder.com

Greg Utas5-Jul-21 5:40

Greg Utas

5-Jul-21 5:40

A purrveyor.

Robust Services Core | Software Techniques for Lemmings | Articles
The fox knows many things, but the hedgehog knows one big thing.

Daniel Pfeffer5-Jul-21 7:22

Daniel Pfeffer

5-Jul-21 7:22

A subordinate claws?

Freedom is the freedom to say that two plus two make four. If that is granted, all else follows.
-- 6079 Smith W.

Polygon filling, and TTF mess

tarco5-Jul-21 11:57

tarco

5-Jul-21 11:57

The human is to err, as the cat is too purr-fection

honey the codewitch5-Jul-21 3:36

5-Jul-21 3:36

I almost have my TTF rendering working but I've been banging my head against the wall because of this:
[Rendering of a "B"^]

Forgive the flat edges. I'm foregoing the "curving" process in order to debug.

I don't know what polygon fill algorithm I'm supposed to be using but apparently even/odd w/ winding isn't working, and that's by far the most common, including (i believe) the one .NET uses for drawing.

I am terrible at sifting through documentation. I'm a bit better at sifting through code to a point.

This project might be derailed entirely and that's super frustrating because I put a ton of work into it already and the problem visually is somewhat minor compared to the scope of the problem. It also only happens on certain letters (I think ones with multiple "holes")

I don't deal with failure well, which sometimes serves me because it helps me commit to succeeding, but it's hard to know when to throw in the towel.

Real programmers use butterflies

Kornfeld Eliyahu Peter5-Jul-21 3:55

Kornfeld Eliyahu Peter

5-Jul-21 3:55

I once played with FreeType, it has a rendering library in code (to learn from) - no documentation Smile | :)

"The only place where Success comes before Work is in the dictionary." Vidal Sassoon, 1928 - 2012

honey the codewitch5-Jul-21 3:57

5-Jul-21 3:57

I know, I've been tinkering with freetype myself trying to integrate it because that was my plan A.

However, the way they coded it, integration into Arduino projects is - while not impossible - really a pain because you have to compile a static lib for each different platform you plan to target.

All that because you can't build from source by including it in a larger project, and no tools (PlatformIO/Arduino IDE) support building a project as two separate projects and then linking them together. =(

I am trying to understand how freetype renders but the code is a zoo.

Real programmers use butterflies

Kornfeld Eliyahu Peter5-Jul-21 4:08

Kornfeld Eliyahu Peter

5-Jul-21 4:08

honey the codewitch wrote:
but the code is a zoo

To many people worked on it over time - however my part is crystal clear Laugh | :laugh:

"The only place where Success comes before Work is in the dictionary." Vidal Sassoon, 1928 - 2012

Randor 5-Jul-21 4:23

Randor

5-Jul-21 4:23

Hi,

Did you try implementing the nonzero-rule that I mentioned last month[^]?

honey the codewitch5-Jul-21 4:27

5-Jul-21 4:27

No I think missed it in the fray as I was neck deep in half a dozen different things. I'll follow the link. Thanks!

Real programmers use butterflies

honey the codewitch5-Jul-21 4:30

5-Jul-21 4:30

I just looked at that wiki entry you pointed me to. It looks like that would solve it but I don't know how to do it yet. Sally forth! Onward to google!

Thank you so much for your comment. I didn't mean to ignore your tip from before, I think I just got buried. Smile | :)

Real programmers use butterflies

Randor 5-Jul-21 4:51

Randor

5-Jul-21 4:51

You are welcome,

honey the codewitch wrote:
Thank you so much for your comment.

I couldn't help but notice that you checked in the sample code from wikipedia nearly verbatim. Your intersects_poly[^] function is a copy-paste from the even–odd rule[^] article that we discussed last month. Looks like it was checked in ~15 minutes after we discussed polygon intersections.

The nonzero-rule[^] will require either a frame buffer or some clever math to determine stroke direction.

Best Wishes,
-David Delaune

honey the codewitch5-Jul-21 4:53