The development board not detect SD card

On the page you linked,on the Hardware tab it says:

1 x SD/MMC card socket, Supports Multimedia Card, Secure Digital and Secure Digital I/O communications protocols up to 2GB

Looks like larger than 2GB cards are indeed not supported on that board, unfortunately. Maybe you can talk to the company who manufactured the board? They should be able to tell you whether this is the case.

Thank you very much! The Manufacturer said that the board supports 1-32 G, the problem may be caused by SD compatibility

Hi Lee,

Is the card not working a SD Card or a SDHC card?

Capacity (SD/SDHC/SDXC) - SD Association

Greg, all norm documentation I've read say the limit of SD Card is 2GB.

However, I have already seen cards advertised as being classic SD and above 2GB.

For instance TS4GSDC follows the same naming convention as Transcend classic SD Cards (but is not on their website).

So, maybe the 2GB limit advertised is because of the norm and, if Lee uses a classic SD card, he might be able to go above the 2GB.

Yeah, it does smell like a compatibility issue. In consumer devices we use SD/SDHC cards interchangeably while they are not really.

Looking at e.g. Sandisk's documentation, their upper limit for SD card is 2GB as well. Instead of NewEgg that you linked, checking Transcend's SD card lineup on their original site, the largest SD Standard is 2GB. I would have doubts whether the NewEgg one is genuine, there are way too many fake SD cards out there...

If the manufacturer says that it should support up to 32GB, maybe the best is then to get a couple of different capacity cards from different vendors, and get testing... They are quite cheap these days. Though it feels fishy to me that the manufacturer's website says one thing and the support says another. From experience, usually the support is wrong in most such cases.

I hadn't thought about fakery... very interesting point you are making: do not believe all you read on the Internet?

Yeah, totally not! It goes as anything else: "Trust but verify".
I recommend Bunny Huang's (awesome hardware hacker and maker) post on MicroSD problems.

Also Googling "Fake SD Card" shows you the extent of the problem.

Hi Alban,

Thank you for your prompt answer. I changed a new Kingston 4G card yesterday, and then found it can be identified

If you are curious, you should try the other card with H2testw 1.4 – Gold Standard In Detecting USB Counterfeit Drives « SOSFakeFlash

It will tell you if your card is rubbish or not...