topic Re: MPC5744p device memory map feature does not work in MPC5xxx

MPC5744p device memory map feature does not work

abhayapremawardena — Mon, 17 May 2021 00:42:37 GMT

Hello

I am having a similar problem on a MPC5744P device . it does not seems like no matter what I do I can get this mapping to work . my code looks like the follows

PFLASH.PFCRD[0].Word0.R = 0x00ff0000; // enable remap of the Flash Address
PFLASH.PFCRD[0].Word1.R = 0x40005000; // Destination RAM address
PFLASH.PFCRD[0].Word2.R = 0xFFFF0006; // block 0 and 64 bytes
PFLASH.PFCRDE.R = 0x80000000; // Enable the first block of descriptors
PFLASH.PFCRCR.B.GRMEN = 1; // Global enable

The Flash address in 0x00ff0000 Ram address in ox40005000 I have currently ser the range for 64 bytes . ( I don't fully understand some of the settings of word 2 . I am using the first or the 0 block of descriptors ) But after I do this it does not seem to map . I am expecting the memory range at RAM to match the values in flash this does not happen. not can I modify values in the flash region? please help

If I try to write to the flash location I get an error which indicates to me it is not mapped .

appreciate your help . are there conditions under which the mapping will not work ?

Re: MPC5744p device memory map feature does not work

abhayapremawardena — Mon, 17 May 2021 00:44:13 GMT

I am having an issue uploading the prtscreens from the S32 studio. please let me know how to do this

Re: MPC5744p device memory map feature does not work

abhayapremawardena — Mon, 17 May 2021 00:47:26 GMT

abhayapremawardena_0-1621212432840.jpeg

abhayapremawardena_1-1621212433045.jpeg

If I try to write to the flash location I get this error which indicates to me it is not mapped .

abhayapremawardena_2-1621212433056.jpeg

Re: MPC5744p device memory map feature does not work

abhayapremawardena — Tue, 18 May 2021 14:46:33 GMT

Hello, can someone please help?