LPC MicrocontrollersのトピックRe: lpc4337 of crp https://community.nxp.com/t5/LPC-Microcontrollers/lpc4337-of-crp/m-p/1030986#M40129 <HTML><HEAD></HEAD><BODY><P>hi,</P><P>&nbsp;&nbsp;&nbsp;非常感谢您的回复，我已经解决了问题，keil工程中配置了NO_Crp宏导致的。</P></BODY></HTML> Thu, 02 Jan 2020 09:05:54 GMT cyc583723081 2020-01-02T09:05:54Z lpc4337 of crp https://community.nxp.com/t5/LPC-Microcontrollers/lpc4337-of-crp/m-p/1030982#M40125 <HTML><HEAD></HEAD><BODY><P>hi，</P><P>我在应用lpc4337，我想设置代码保护；并将satrtup.s中的CRP_Key改为了0x12345678,<span class="lia-inline-image-display-wrapper" image-alt="pastedImage_2.png"><img src="https://community.nxp.com/t5/image/serverpage/image-id/101415iE46CEA991947CAA9/image-size/large?v=v2&amp;px=999" role="button" title="pastedImage_2.png" alt="pastedImage_2.png" /></span>编译之后，我发现并没有起效果，jtag依然能读取到代码，并且在0x1A0002FC的位置处并不是<SPAN>0x12345678，<span class="lia-inline-image-display-wrapper" image-alt="pastedImage_1.png"><img src="https://community.nxp.com/t5/image/serverpage/image-id/101416i6D221A6AD249DC63/image-size/large?v=v2&amp;px=999" role="button" title="pastedImage_1.png" alt="pastedImage_1.png" /></span>；这是为什么？</SPAN></P></BODY></HTML> Thu, 02 Jan 2020 05:53:29 GMT https://community.nxp.com/t5/LPC-Microcontrollers/lpc4337-of-crp/m-p/1030982#M40125 cyc583723081 2020-01-02T05:53:29Z Re: lpc4337 of crp https://community.nxp.com/t5/LPC-Microcontrollers/lpc4337-of-crp/m-p/1030983#M40126 <HTML><HEAD></HEAD><BODY><P>Hi, </P><P></P><P>Pls refer to the NOTE at section 6.6 Code Read Protection (CRP), in other words, the new CRP setting is not valid until you power off and power on.</P><P>BR</P><P>XiangJun Rong</P><P><STRONG>Important: Any CRP change becomes effective only after the device has gone</STRONG><BR /><STRONG>through a power cycle</STRONG>.</P></BODY></HTML> Thu, 02 Jan 2020 06:55:01 GMT https://community.nxp.com/t5/LPC-Microcontrollers/lpc4337-of-crp/m-p/1030983#M40126 xiangjun_rong 2020-01-02T06:55:01Z Re: lpc4337 of crp https://community.nxp.com/t5/LPC-Microcontrollers/lpc4337-of-crp/m-p/1030984#M40127 <HTML><HEAD></HEAD><BODY><P>hi，</P><P>谢谢您的回复，我进行了断电和上电操作，但是jtag依然可以读取到代码，并且<SPAN style="color: #51626f; background-color: #ffffff;">0x1A0002FC的位置处的值依然不是</SPAN><SPAN style="color: #51626f; background-color: #ffffff; border: 0px; font-size: 14px;">0x12345678。</SPAN></P></BODY></HTML> Thu, 02 Jan 2020 08:10:46 GMT https://community.nxp.com/t5/LPC-Microcontrollers/lpc4337-of-crp/m-p/1030984#M40127 cyc583723081 2020-01-02T08:10:46Z Re: lpc4337 of crp https://community.nxp.com/t5/LPC-Microcontrollers/lpc4337-of-crp/m-p/1030985#M40128 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P>你用的什么工具？ 写法和工具相关</P><P>BR</P><P>Xiangjun Rong</P></BODY></HTML> Thu, 02 Jan 2020 09:02:27 GMT https://community.nxp.com/t5/LPC-Microcontrollers/lpc4337-of-crp/m-p/1030985#M40128 xiangjun_rong 2020-01-02T09:02:27Z Re: lpc4337 of crp https://community.nxp.com/t5/LPC-Microcontrollers/lpc4337-of-crp/m-p/1030986#M40129 <HTML><HEAD></HEAD><BODY><P>hi,</P><P>&nbsp;&nbsp;&nbsp;非常感谢您的回复，我已经解决了问题，keil工程中配置了NO_Crp宏导致的。</P></BODY></HTML> Thu, 02 Jan 2020 09:05:54 GMT https://community.nxp.com/t5/LPC-Microcontrollers/lpc4337-of-crp/m-p/1030986#M40129 cyc583723081 2020-01-02T09:05:54Z