external sdram connection to stm32f429ii

echelon2010 · ‎2014-12-05

Posted on December 05, 2014 at 19:19

Hi,i'd like to connect an external sdram to stm32f429ii controller. There is a question, is it necessary to use dqm pins? i want to use MT48LC4M32B2 sdram.

Tesla DeLorean · ‎2014-12-05

Posted on December 05, 2014 at 19:40

If you expect to write bytes, half-words, or unaligned words.

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echelon2010 · ‎2014-12-15

Posted on December 15, 2014 at 14:41

Must i ground this pins if i don't use it?

echelon2010 · ‎2015-02-24

Posted on February 24, 2015 at 14:08

Is it possible to write bytes, half-words without dqm signals? I want to use 24-bit lcd and 32-bit sdram, but 1 dqm line is busy unfortunately. Answer, please.