2 sdram (IS43s16400j) with LPC4357 init Code

[mahesh1234_vsnl]

Hi
I want to use TWO-SDRAM  IS42S16400J(1 Meg Bits x 16 Bits x 4 Banks (64-MBIT)) on LPC4357 controller 
Does any one have code to initialize this SDRAM Please share.

[xiangjun_rong]

Hi,

It is okay to connect two IS43s16400 to LPC4357, for hardware connection, as you know that the IS43s16400 has:

column address: A0~A7, b bits

row address:A0~A11, 12 bits

bank address: 4 banks, BA0/BA1

You can connect the A0~A11 to the EMC_A0~EMC_A11, connect BA0/BA1 to EMC_A13/EMC_A14, connect the other signal as usual.

For the software configuration, you can configure the DYNAMICCONFIG[0] as

Pls refer to section 23.7.19 Dynamic Memory Configuration registers in UM10503.pdf

The LPCopen has the SDRAM code:

You can download LPCopen from the link:

https://www.nxp.com/design/design-center/software/software-library/lpcopen-software-development-plat...

Hope it can help you

BR

XiangJun Rong