AM6442: Set DDR4 Frequency on SysConfig

Hideaki Matsumoto

Part Number: AM6442
Other Parts Discussed in Thread: SYSCONFIG

Hi,

My customer has a question about DDR4 frequency on the SysConfig.

On the latest SysConfig, the DDR4 frequency is fixed as 800MHz.

Since they’re using 533MHz, they want to set 533MHz on the SysConfig.

How can they set 533MHz ?

Is there any restriction on AM64x device such as DDR supports only 800MHz ?

Thanks and regards,

Hideaki

+1 JJD 7 months ago

They can change to 533MHz by changing the Memory Frequency (MHz) parameter in the DDR register configuration tool: https://dev.ti.com/sysconfig/?product=Processor_DDR_Config&device=AM64x

Timing will be changed automatically, but be sure to check latency parameters are set appropriately.

Regards,

James

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