https://community.nxp.com/t5/MPC5xxx/Read-While-Write-on-MPC5675K-Code-Flash-modules/m-p/1349439#M19285 <P>David,</P><P>&nbsp;</P><P>Thank you very much for your answer!</P><P>It explains a lot.</P><P>Thank you also for your little example on Data Flash use <LI-EMOJI id="lia_winking-face" title=":winking_face:"></LI-EMOJI></P><P>&nbsp;</P><P>Best regards.</P> Fri, 01 Oct 2021 05:44:15 GMT JChMathae 2021-10-01T05:44:15Z https://community.nxp.com/t5/MPC5xxx/Read-While-Write-on-MPC5675K-Code-Flash-modules/m-p/1347306#M19264 <LI-SPOILER>Hello,<BR /><BR /><BR />According to the MPC5675K Reference Manual in chapter 8 "Flash Memory", Read-While-Write accesses within a Flash module is not possible. That is, it is impossible to erase or program a Flash sector when executing code from another sector within the same Flash module.<BR /><BR />But when I am using the Standard Software C90LC Driver it seems to do exactly that: executing from a Flash module sector when erasing/programming another sector within this same Flash module...<BR /><BR />Where is the truth?!<BR /><BR />Thank you for your help.<BR /><BR />Best regards.</LI-SPOILER> Tue, 28 Sep 2021 06:39:22 GMT https://community.nxp.com/t5/MPC5xxx/Read-While-Write-on-MPC5675K-Code-Flash-modules/m-p/1347306#M19264 JChMathae 2021-09-28T06:39:22Z https://community.nxp.com/t5/MPC5xxx/Read-While-Write-on-MPC5675K-Code-Flash-modules/m-p/1348236#M19275 <P>Hi, by default bus stall happens instead of RWW, thus example will run even without relocation to SRAM.</P> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="davidtosenovjan_0-1632906282423.png" style="width: 644px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/157874i94C3D395477EC6C6/image-dimensions/644x536?v=v2" width="644" height="536" role="button" title="davidtosenovjan_0-1632906282423.png" alt="davidtosenovjan_0-1632906282423.png" /></span></P> <P>However driver also includes macro COPY_TO_RAM, so you can simply relocate flash routine to the SRAM, what you should do in real application.</P> <P>&nbsp;</P> Wed, 29 Sep 2021 09:09:56 GMT https://community.nxp.com/t5/MPC5xxx/Read-While-Write-on-MPC5675K-Code-Flash-modules/m-p/1348236#M19275 davidtosenovjan 2021-09-29T09:09:56Z https://community.nxp.com/t5/MPC5xxx/Read-While-Write-on-MPC5675K-Code-Flash-modules/m-p/1349439#M19285 <P>David,</P><P>&nbsp;</P><P>Thank you very much for your answer!</P><P>It explains a lot.</P><P>Thank you also for your little example on Data Flash use <LI-EMOJI id="lia_winking-face" title=":winking_face:"></LI-EMOJI></P><P>&nbsp;</P><P>Best regards.</P> Fri, 01 Oct 2021 05:44:15 GMT https://community.nxp.com/t5/MPC5xxx/Read-While-Write-on-MPC5675K-Code-Flash-modules/m-p/1349439#M19285 JChMathae 2021-10-01T05:44:15Z