topic Re: mpc57 in MPC5xxx https://community.nxp.com/t5/MPC5xxx/mpc57/m-p/818677#M12042 <HTML><HEAD></HEAD><BODY><P>thank you.</P></BODY></HTML> Tue, 18 Sep 2018 10:21:21 GMT jackjack 2018-09-18T10:21:21Z mpc57 https://community.nxp.com/t5/MPC5xxx/mpc57/m-p/818675#M12040 <HTML><HEAD></HEAD><BODY><P>what is mirror flash?</P><P>when i use overlayRAM for calibration(MPC5744P). I have a problem.</P><P>I remap RAM area(0x4005C000) to mirror flash（0x08F98000), i can change mirror flash data by changing data in 0x4005C000(data in 0x00F98000 will not change), but after i power down mpc5744p, then power up mpc5744p, mirror flash data become the same as data in 0x00F98000, does that mean mirror flash data can't be reserved after power down?</P></BODY></HTML> Thu, 13 Sep 2018 06:19:23 GMT https://community.nxp.com/t5/MPC5xxx/mpc57/m-p/818675#M12040 jackjack 2018-09-13T06:19:23Z Re: mpc57 https://community.nxp.com/t5/MPC5xxx/mpc57/m-p/818676#M12041 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P></P><P>it is expected behavior. When you change the data at 0x4005C000 (in RAM) then the same data will be visible at 0x08F98000. But this will not modify the flash content. Writing to 0x4005C000 changes the RAM data only.</P><P>Once the calibration is done, it is necessary to manually program the data from RAM to flash. This is not done automatically.</P><P></P><P>Regards,</P><P>Lukas</P></BODY></HTML> Tue, 18 Sep 2018 08:54:24 GMT https://community.nxp.com/t5/MPC5xxx/mpc57/m-p/818676#M12041 lukaszadrapa 2018-09-18T08:54:24Z Re: mpc57 https://community.nxp.com/t5/MPC5xxx/mpc57/m-p/818677#M12042 <HTML><HEAD></HEAD><BODY><P>thank you.</P></BODY></HTML> Tue, 18 Sep 2018 10:21:21 GMT https://community.nxp.com/t5/MPC5xxx/mpc57/m-p/818677#M12042 jackjack 2018-09-18T10:21:21Z