https://community.nxp.com/t5/S32K/About-S32K3XX-APPLICATION/m-p/2406149#M60539 <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="sunshine88_0-1787046454804.png" style="width: 400px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/394851iC977B9E5E86CF6C9/image-size/medium?v=v2&amp;px=400" role="button" title="sunshine88_0-1787046454804.png" alt="sunshine88_0-1787046454804.png" /><span class="lia-inline-image-caption" onclick="event.preventDefault();">sunshine88_0-1787046454804.png</span></span></P><P>想咨询一下，为什么在S32K358 RTD库函数中，没有Cache_Ip_init()函数，如果没有初始化函数，系统又是怎样初始的哪？系统自启动Cache初始化过程吗？</P> Tue, 18 Aug 2026 09:49:55 GMT sunshine88 2026-08-18T09:49:55Z https://community.nxp.com/t5/S32K/About-S32K3XX-APPLICATION/m-p/2406149#M60539 <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="sunshine88_0-1787046454804.png" style="width: 400px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/394851iC977B9E5E86CF6C9/image-size/medium?v=v2&amp;px=400" role="button" title="sunshine88_0-1787046454804.png" alt="sunshine88_0-1787046454804.png" /><span class="lia-inline-image-caption" onclick="event.preventDefault();">sunshine88_0-1787046454804.png</span></span></P><P>想咨询一下，为什么在S32K358 RTD库函数中，没有Cache_Ip_init()函数，如果没有初始化函数，系统又是怎样初始的哪？系统自启动Cache初始化过程吗？</P> Tue, 18 Aug 2026 09:49:55 GMT https://community.nxp.com/t5/S32K/About-S32K3XX-APPLICATION/m-p/2406149#M60539 sunshine88 2026-08-18T09:49:55Z https://community.nxp.com/t5/S32K/About-S32K3XX-APPLICATION/m-p/2406195#M60542 <P>Hello,</P> <BLOCKQUOTE> <P>I'd like to ask why there's no `Cache_Ip_init()` function in the S32K358 RTD library. If there's no initialization function, how does the system initialize the cache? Does the system automatically start the cache initialization process?</P> </BLOCKQUOTE> <P>The S32K358 RTD does not provide a dedicated Cache_Ip_Init() API in recent RTD releases. Cache enablement is handled during device startup through platform/system initialization code. After the cache is enabled, the Cortex-M7 hardware automatically manages cache allocation, invalidation, and line replacement. Therefore, no explicit application-level cache initialization function is required.</P> <P>Best regards,</P> <P>Peter</P> Tue, 18 Aug 2026 11:36:15 GMT https://community.nxp.com/t5/S32K/About-S32K3XX-APPLICATION/m-p/2406195#M60542 petervlna 2026-08-18T11:36:15Z