DDR SDRAM ?

[antonius]

Posted on April 23, 2014 at 02:21

Guys,

I'm just wondering, Is it possible to use my old DDR SDRAM PC133 module from my old PC for FSMC on STM32F103VCT6, I can see one chip for 8Mbytes, not bad for my experiment and it's cheap... The type is GM72V66841ET75.....Any ideas ? thanks #circular-conversation

[Tesla DeLorean]

Posted on April 23, 2014 at 02:51

It's not DDR, and it's not going to work on STM32F1/F2 parts. It might be usable with the F429/F439 parts.

[antonius]

Posted on April 23, 2014 at 03:15

can I use this :

http://www.digikey.com/product-detail/en/IS62WV102416BLL-25TLI/IS62WV102416BLL-25TLI-ND/1831392

http://www.issi.com/WW/pdf/62-65WV102416ALL-BLL.pdf

with STM32F103VCT6 ? do you have any examples schematic on interfacing 8 Mbytes SRAM to STM32 ? thanks

[Tesla DeLorean]

Posted on April 23, 2014 at 03:43

Look at the STM3210E-EVAL, and add more high-order address bits.

[antonius]

Posted on April 23, 2014 at 04:51

this one ?

what's the different between 512 x 16 and 1024 x 8, does it matter or the different is per word only ? can I use STM32 with x8 ? thanks

[Tesla DeLorean]

Posted on April 23, 2014 at 05:27

what's the different between 512 x 16 and 1024 x 8, does it matter or the different is per word only ? can I use STM32 with x8 ?

The 16-bit wide ones would give you better bandwidth, I suggested a schematic based on the part you specified, for the 8-bit you'll have to source your own. I believe it should support 8-bit parts, review the documentation.

[antonius]

Posted on April 25, 2014 at 06:59

can I use this one with STM32F103VCT6 ?

http://www.wvshare.com/product/SDRAM-Board-B.htm Thanks

[antonius]

Posted on April 25, 2014 at 08:56

for uClinux I'm going to need :

http://www.wvshare.com/product/IS62WV51216BLL-SRAM-Board.htm

x 4 pieces, am I right ? thanks

[Tesla DeLorean]

Posted on April 25, 2014 at 18:47

can I use this one with STM32F103VCT6 ? http://www.wvshare.com/product/SDRAM-Board-B.htm

NO, Please refer to original response. The F1 parts DO NOT SUPPORT SDRAM/DDR2/DDR3

[Tesla DeLorean]

Posted on April 25, 2014 at 18:52

for uClinux I'm going to need :

http://www.wvshare.com/product/IS62WV51216BLL-SRAM-Board.htm

x 4 pieces, am I right ? thanks I don't know, what are the requirements? Would it be more practical to use an STM32F429I-DISCO with 8MB of SDRAM already present, and a screen? Do you have any experience with ucLinux? If you need support you'd be better picking a device/board that people are currently doing development work on, the F1 series is rather slow and dated in 2014. Check what emCraft.com are supporting.