topic Non-writable memory in RAM on 9s12dj256 in S12 / MagniV Microcontrollers https://community.nxp.com/t5/S12-MagniV-Microcontrollers/Non-writable-memory-in-RAM-on-9s12dj256/m-p/157763#M4810 <HTML><HEAD></HEAD><BODY><P>Hello all,</P><P>&nbsp;</P><P>I am working on a drop in upgrade from a DG128 to a DJ256. After modifying the memory allocations in my linker and programming the MCU with a USB BDM, the top of my RAM segment (3000h - 3FFFh) becomes read only. Any ideas why this might be?</P><P>&nbsp;</P><P>TIA</P></BODY></HTML> Tue, 26 Oct 2010 01:03:16 GMT FrijolEE 2010-10-26T01:03:16Z Non-writable memory in RAM on 9s12dj256 https://community.nxp.com/t5/S12-MagniV-Microcontrollers/Non-writable-memory-in-RAM-on-9s12dj256/m-p/157763#M4810 <HTML><HEAD></HEAD><BODY><P>Hello all,</P><P>&nbsp;</P><P>I am working on a drop in upgrade from a DG128 to a DJ256. After modifying the memory allocations in my linker and programming the MCU with a USB BDM, the top of my RAM segment (3000h - 3FFFh) becomes read only. Any ideas why this might be?</P><P>&nbsp;</P><P>TIA</P></BODY></HTML> Tue, 26 Oct 2010 01:03:16 GMT https://community.nxp.com/t5/S12-MagniV-Microcontrollers/Non-writable-memory-in-RAM-on-9s12dj256/m-p/157763#M4810 FrijolEE 2010-10-26T01:03:16Z Re: Non-writable memory in RAM on 9s12dj256 https://community.nxp.com/t5/S12-MagniV-Microcontrollers/Non-writable-memory-in-RAM-on-9s12dj256/m-p/157764#M4811 <HTML><HEAD></HEAD><BODY><P>Did you set RAMHAL bit in INITRM?</P></BODY></HTML> Tue, 26 Oct 2010 01:16:57 GMT https://community.nxp.com/t5/S12-MagniV-Microcontrollers/Non-writable-memory-in-RAM-on-9s12dj256/m-p/157764#M4811 kef 2010-10-26T01:16:57Z