MPC5xxx中的主题 Re: MPC574xP module's memory can not be accessed https://community.nxp.com/t5/MPC5xxx/MPC574xP-module-s-memory-can-not-be-accessed/m-p/1069297#M16092 <HTML><HEAD></HEAD><BODY><P>Hi, in general '????' showing in the TRACE32 memory dump window means bus error.</P><P></P><P>If it is valid address range (do you have device part number with FlexRay?) then you should check MC_ME_PS3 register to check whether peripheral is active, potentially check CMPU, SMPU, XBAR and AIPS (PBRIDGE) peripherals where you can configure access rights.</P><P></P><P><span class="lia-inline-image-display-wrapper" image-alt="pastedImage_9.png"><img src="https://community.nxp.com/t5/image/serverpage/image-id/107824iA93C6DE2D1BFE1D2/image-size/large?v=v2&amp;px=999" role="button" title="pastedImage_9.png" alt="pastedImage_9.png" /></span></P></BODY></HTML> Tue, 26 May 2020 14:31:18 GMT davidtosenovjan 2020-05-26T14:31:18Z MPC574xP module's memory can not be accessed https://community.nxp.com/t5/MPC5xxx/MPC574xP-module-s-memory-can-not-be-accessed/m-p/1069296#M16091 <HTML><HEAD></HEAD><BODY><P>Hello,</P><P></P><P>When I debug MPC574xP (<SPAN>MPC5743P)</SPAN>, I find some module's memory are full of 'question marks' ????.</P><P>For example, the FlexRay module, according to Memmory Map, the address is 0xFFE50000-0xFFE53FF:</P><P><span class="lia-inline-image-display-wrapper" image-alt="pastedImage_2.png"><img src="https://community.nxp.com/t5/image/serverpage/image-id/107556i25D41C32D5FC04EE/image-size/large?v=v2&amp;px=999" role="button" title="pastedImage_2.png" alt="pastedImage_2.png" /></span></P><P>but in Trace32, it's full of ????, I can't read/write to the registers. (The other modules like MCU、Timer is running well)</P><P><span class="lia-inline-image-display-wrapper" image-alt="pastedImage_1.png"><img src="https://community.nxp.com/t5/image/serverpage/image-id/107557i779AF4F0A658F3E9/image-size/large?v=v2&amp;px=999" role="button" title="pastedImage_1.png" alt="pastedImage_1.png" /></span></P><P>How can I solve this issue?</P></BODY></HTML> Mon, 25 May 2020 12:21:43 GMT https://community.nxp.com/t5/MPC5xxx/MPC574xP-module-s-memory-can-not-be-accessed/m-p/1069296#M16091 sijia_hao 2020-05-25T12:21:43Z Re: MPC574xP module's memory can not be accessed https://community.nxp.com/t5/MPC5xxx/MPC574xP-module-s-memory-can-not-be-accessed/m-p/1069297#M16092 <HTML><HEAD></HEAD><BODY><P>Hi, in general '????' showing in the TRACE32 memory dump window means bus error.</P><P></P><P>If it is valid address range (do you have device part number with FlexRay?) then you should check MC_ME_PS3 register to check whether peripheral is active, potentially check CMPU, SMPU, XBAR and AIPS (PBRIDGE) peripherals where you can configure access rights.</P><P></P><P><span class="lia-inline-image-display-wrapper" image-alt="pastedImage_9.png"><img src="https://community.nxp.com/t5/image/serverpage/image-id/107824iA93C6DE2D1BFE1D2/image-size/large?v=v2&amp;px=999" role="button" title="pastedImage_9.png" alt="pastedImage_9.png" /></span></P></BODY></HTML> Tue, 26 May 2020 14:31:18 GMT https://community.nxp.com/t5/MPC5xxx/MPC574xP-module-s-memory-can-not-be-accessed/m-p/1069297#M16092 davidtosenovjan 2020-05-26T14:31:18Z