topic Re: Software reset -- refresh of SRAM in ColdFire/68K Microcontrollers and Processors https://community.nxp.com/t5/ColdFire-68K-Microcontrollers/Software-reset-refresh-of-SRAM/m-p/205229#M9659 <HTML><HEAD></HEAD><BODY><P>Unlike dynamic DRAM (such as DDR or SDRAM), SRAM doesn't need the refresh at all.</P><P>&nbsp;</P><P>Some areas of an SRAM (such as interrupt vector table) will be reinitialized during booting the RTOS+application by the software reset.</P></BODY></HTML> Wed, 05 Aug 2009 17:32:09 GMT admin 2009-08-05T17:32:09Z Software reset -- refresh of SRAM https://community.nxp.com/t5/ColdFire-68K-Microcontrollers/Software-reset-refresh-of-SRAM/m-p/205227#M9657 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P>&nbsp; &nbsp;&nbsp; Does a software reset cause a refresh of SRAM to happen? The controller in use is M52259 [Coldfire V2].</P><P>&nbsp;</P><P>Thanks,</P><P>Chen</P></BODY></HTML> Wed, 05 Aug 2009 16:48:29 GMT https://community.nxp.com/t5/ColdFire-68K-Microcontrollers/Software-reset-refresh-of-SRAM/m-p/205227#M9657 lel_chen 2009-08-05T16:48:29Z Re: Software reset -- refresh of SRAM https://community.nxp.com/t5/ColdFire-68K-Microcontrollers/Software-reset-refresh-of-SRAM/m-p/205228#M9658 <HTML><HEAD></HEAD><BODY><P>It shouldn't... But maybe you can clarify what you mean by refresh?</P><P>&nbsp;</P><P>The SRAM will lose state if pwr drops or droops...</P><P>&nbsp;</P><P>-JWW</P><P>&nbsp;</P></BODY></HTML> Wed, 05 Aug 2009 17:14:57 GMT https://community.nxp.com/t5/ColdFire-68K-Microcontrollers/Software-reset-refresh-of-SRAM/m-p/205228#M9658 JWW 2009-08-05T17:14:57Z Re: Software reset -- refresh of SRAM https://community.nxp.com/t5/ColdFire-68K-Microcontrollers/Software-reset-refresh-of-SRAM/m-p/205229#M9659 <HTML><HEAD></HEAD><BODY><P>Unlike dynamic DRAM (such as DDR or SDRAM), SRAM doesn't need the refresh at all.</P><P>&nbsp;</P><P>Some areas of an SRAM (such as interrupt vector table) will be reinitialized during booting the RTOS+application by the software reset.</P></BODY></HTML> Wed, 05 Aug 2009 17:32:09 GMT https://community.nxp.com/t5/ColdFire-68K-Microcontrollers/Software-reset-refresh-of-SRAM/m-p/205229#M9659 admin 2009-08-05T17:32:09Z Re: Software reset -- refresh of SRAM https://community.nxp.com/t5/ColdFire-68K-Microcontrollers/Software-reset-refresh-of-SRAM/m-p/205230#M9660 <HTML><HEAD></HEAD><BODY>I think it's refreshed by code.</BODY></HTML> Thu, 27 Aug 2009 08:17:23 GMT https://community.nxp.com/t5/ColdFire-68K-Microcontrollers/Software-reset-refresh-of-SRAM/m-p/205230#M9660 doom 2009-08-27T08:17:23Z