How to use external SDRAM memory on the LPC54018?

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How to use external SDRAM memory on the LPC54018?

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RodrigoEngComp
Contributor I

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?

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xiangjun_rong
NXP TechSupport
NXP TechSupport

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

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xiangjun_rong
NXP TechSupport
NXP TechSupport

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

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