topic LPCScrypt operation with Code Protect CRP1 enabled in LPC Microcontrollers https://community.nxp.com/t5/LPC-Microcontrollers/LPCScrypt-operation-with-Code-Protect-CRP1-enabled/m-p/574563#M19055 <HTML><HEAD></HEAD><BODY><P>Will LPCScrypt work when code protection CRP1 is enabled. It appears to break the ability to run LPCScrypt by preventing the LPC1833 being detected as a USB device/COM port.</P><P>If this is the case, how can we Erase the Device (allowed in CRP1), so that LPC Scrypt will work again?</P><P>Thank you.</P></BODY></HTML> Fri, 05 Aug 2016 11:22:02 GMT gileshutchison 2016-08-05T11:22:02Z LPCScrypt operation with Code Protect CRP1 enabled https://community.nxp.com/t5/LPC-Microcontrollers/LPCScrypt-operation-with-Code-Protect-CRP1-enabled/m-p/574563#M19055 <HTML><HEAD></HEAD><BODY><P>Will LPCScrypt work when code protection CRP1 is enabled. It appears to break the ability to run LPCScrypt by preventing the LPC1833 being detected as a USB device/COM port.</P><P>If this is the case, how can we Erase the Device (allowed in CRP1), so that LPC Scrypt will work again?</P><P>Thank you.</P></BODY></HTML> Fri, 05 Aug 2016 11:22:02 GMT https://community.nxp.com/t5/LPC-Microcontrollers/LPCScrypt-operation-with-Code-Protect-CRP1-enabled/m-p/574563#M19055 gileshutchison 2016-08-05T11:22:02Z Re: LPCScrypt operation with Code Protect CRP1 enabled https://community.nxp.com/t5/LPC-Microcontrollers/LPCScrypt-operation-with-Code-Protect-CRP1-enabled/m-p/574564#M19056 <HTML><HEAD></HEAD><BODY><P>With CRP set to CRP1 or higher, available boot sources are restricted: If the requested boot source (either hardwired boot source from OTP or read from pins) is not one of UART0/UART3, the boot code forces booting from UART0.</P><P></P><P>So there is no way to boot into USB DFU mode (as required by LPCScrypt) on a CRP protected device. You will have to unlock over the UART using Flashmagic or similar first.</P><P></P><P>Regards,</P><P>LPCXpresso Support</P></BODY></HTML> Thu, 11 Aug 2016 10:20:51 GMT https://community.nxp.com/t5/LPC-Microcontrollers/LPCScrypt-operation-with-Code-Protect-CRP1-enabled/m-p/574564#M19056 lpcxpresso_supp 2016-08-11T10:20:51Z