How to use external SDRAM memory on the LPC54018?

[RodrigoEngComp]

I need to use external SDRAM memory instead of internal SRAMX, however, I had no success in this process, could someone help me with this problem?

[xiangjun_rong · Accepted solution]

Hi,

As you know the LPC54018 does not have on-chip flash, you have to save code in spifi flash, then copy to SDRAM and execute from SDRAM.

I attach an application note an12423.pdf which discusses where/how to initialize SDRAM and MPU so that code can be copied  into SDRAM and execute from it.

.https://www.nxp.com.cn/docs/en/application-note/AN12423.pdf

Hope it can help you

BR

XiangJun Rong