topic Re: After a software reset like WD reset, BOD reset, is the SRAM content retained? in LPC FAQs https://community.nxp.com/t5/LPC-FAQs/After-a-software-reset-like-WD-reset-BOD-reset-is-the-SRAM/m-p/464410#M62 <HTML><HEAD></HEAD><BODY><TABLE class="comment" style="border-width: 0px; color: #646464; font-family: Arial, sans-serif; font-size: 14px;"><TBODY style="border-top-color: #cccccc;"><TR style="border-width: 0px;"><TD style="border-width: 0px; font-size: 12px;"></TD><TD style="border-width: 0px; font-size: 12px;"></TD><TD style="border-width: 0px; font-size: 12px;"></TD></TR><TR style="border-width: 0px;"><TD style="border-width: 0px; font-size: 12px;"></TD><TD style="border-width: 0px; font-size: 12px;"><P class="submitted"><SPAN class="comment-id">#1</SPAN>Submitted by PEICHUN on Wed, 2014-09-17 01:23.</P><P class="submitted"></P><P>Ｉ　ｔｅｓｔ　ｔｈｅ　ＬＰＣ１２２５ＦＢＤ４８／３２１，ａｆｔｅｒ　ａ　ＷＤ　ｒｅｓｅｔ　ａｌｌ　ｔｈｅ　ＳＲＡＭ　ｄａｔａ　ｉｓ　０，ｗｈｙ？ｔｈｅ　ａｄｄｒｅｓｓ　ｉｓ　０ｘ１０００　０２００，　Ｉ　ｔｅｓｔ　ｉｔ　ｉｎ　ＫＥＩＬ．<BR />Ｉｔ　ｉｓ　ｉｍｐｏｒｔａｎｔ　ｔｏ　ｍｙ　ｐｒｏｇｒａｍ，ａｆｔｅｒ　ｔｈｅ　ＷＤ　ｒｅｓｅｔ，　ｏｒ　ｓｏｆｔ　ｒｅｓｅｔ　ｔｈｅ　ＳＲＡＭ　ｄａｔａ　ｓｈｏｕｌｄ　ｒｅｔａｉｎ　ｕｎｃｈａｎｇｅｄ　ｔｏ　ｋｅｅｐ　ｔｈｅ　ｏｕｔｐｕｔ　ｓｔｅａｄｙ．</P></TD></TR></TBODY></TABLE></BODY></HTML> Thu, 31 Mar 2016 01:27:23 GMT lpcware-support 2016-03-31T01:27:23Z After a software reset like WD reset, BOD reset, is the SRAM content retained? https://community.nxp.com/t5/LPC-FAQs/After-a-software-reset-like-WD-reset-BOD-reset-is-the-SRAM/m-p/464409#M61 <HTML><HEAD></HEAD><BODY><P><SPAN style="color: #646464; font-family: Arial, sans-serif; font-size: 12px;">Yes. In case of a software reset like WD reset, BOD reset etc, the SRAM contents (memory address 0x1000 0000 to 0x1000 2000 in case of LPC1227 ) is retained. However, the part won't retain the contents if it goes to deep power-down mode or if the microcontrollers is unpowered.</SPAN></P></BODY></HTML> Thu, 31 Mar 2016 01:26:47 GMT https://community.nxp.com/t5/LPC-FAQs/After-a-software-reset-like-WD-reset-BOD-reset-is-the-SRAM/m-p/464409#M61 lpcware-support 2016-03-31T01:26:47Z Re: After a software reset like WD reset, BOD reset, is the SRAM content retained? https://community.nxp.com/t5/LPC-FAQs/After-a-software-reset-like-WD-reset-BOD-reset-is-the-SRAM/m-p/464410#M62 <HTML><HEAD></HEAD><BODY><TABLE class="comment" style="border-width: 0px; color: #646464; font-family: Arial, sans-serif; font-size: 14px;"><TBODY style="border-top-color: #cccccc;"><TR style="border-width: 0px;"><TD style="border-width: 0px; font-size: 12px;"></TD><TD style="border-width: 0px; font-size: 12px;"></TD><TD style="border-width: 0px; font-size: 12px;"></TD></TR><TR style="border-width: 0px;"><TD style="border-width: 0px; font-size: 12px;"></TD><TD style="border-width: 0px; font-size: 12px;"><P class="submitted"><SPAN class="comment-id">#1</SPAN>Submitted by PEICHUN on Wed, 2014-09-17 01:23.</P><P class="submitted"></P><P>Ｉ　ｔｅｓｔ　ｔｈｅ　ＬＰＣ１２２５ＦＢＤ４８／３２１，ａｆｔｅｒ　ａ　ＷＤ　ｒｅｓｅｔ　ａｌｌ　ｔｈｅ　ＳＲＡＭ　ｄａｔａ　ｉｓ　０，ｗｈｙ？ｔｈｅ　ａｄｄｒｅｓｓ　ｉｓ　０ｘ１０００　０２００，　Ｉ　ｔｅｓｔ　ｉｔ　ｉｎ　ＫＥＩＬ．<BR />Ｉｔ　ｉｓ　ｉｍｐｏｒｔａｎｔ　ｔｏ　ｍｙ　ｐｒｏｇｒａｍ，ａｆｔｅｒ　ｔｈｅ　ＷＤ　ｒｅｓｅｔ，　ｏｒ　ｓｏｆｔ　ｒｅｓｅｔ　ｔｈｅ　ＳＲＡＭ　ｄａｔａ　ｓｈｏｕｌｄ　ｒｅｔａｉｎ　ｕｎｃｈａｎｇｅｄ　ｔｏ　ｋｅｅｐ　ｔｈｅ　ｏｕｔｐｕｔ　ｓｔｅａｄｙ．</P></TD></TR></TBODY></TABLE></BODY></HTML> Thu, 31 Mar 2016 01:27:23 GMT https://community.nxp.com/t5/LPC-FAQs/After-a-software-reset-like-WD-reset-BOD-reset-is-the-SRAM/m-p/464410#M62 lpcware-support 2016-03-31T01:27:23Z