Hi guys,
I'm working on my first embedded project and would like to use your experience.
I've got this LCD with a combined SD card reader from a friend
without any datasheet or manual.
https://docs.google.com/file/d/0Bwrs_e-f-bzkREhoMUgzT3VPcnc/edit?usp=sharing

As you can see in the picture, there is a pin for SD_CS but there are no pins to interface with the SD card.
I've done lots of research for a datasheet of this screen with no success.

What do you think ? is it unusable or is it suppose to work with the touch panel SPI interface pins ?

Thanks a lot,
Itay.

 

Well, it says "Model YX32B". What did you find when you searched on that?

 

Thanks for the reply
I did an extensive search and found nothing helpful about this specific model
I did find a lot of variations of it , some with SD card as well but they have the pins I'm missing:
For example: http://www.ebay.com/itm/3-2-inch-TF...t=Home_Automation_Modules&hash=item4ac42ad522

it has 4 pins for the SD card reader SPI
All I have on my board is SD_CS

 

These things can be hard enough to get working even if you do know exactly what it is. I used a Microelectronica board with the Microchip graphic libraries since the interface had the software driver; it only took me a solid week plus to find the error in their driver code.

TP_SO, TP_SI and TP_SCK should work with SD_CS to rub the SD card, guessing both SPI devices share the interface.

Bottom line: unless you find the data sheet for the chip on this board strongly consider re-purposing it as a drink coaster.