Kinetis MicrocontrollersのトピックRe: write protection set, cannot erase https://community.nxp.com/t5/Kinetis-Microcontrollers/write-protection-set-cannot-erase/m-p/292502#M11769 <HTML><HEAD></HEAD><BODY><P>Hi Ivan,</P><P>I'm not familiar with keil, Why you don't try doing a mass erase with CW?</P><P>Here's a tutorial about how to do it. <A href="http://mcuoneclipse.com/2012/05/28/device-is-secure/" title="http://mcuoneclipse.com/2012/05/28/device-is-secure/">Device is secure? | MCU on Eclipse</A></P><P></P><P>I hope it helps</P></BODY></HTML> Fri, 06 Sep 2013 15:12:40 GMT albertovargas 2013-09-06T15:12:40Z write protection set, cannot erase https://community.nxp.com/t5/Kinetis-Microcontrollers/write-protection-set-cannot-erase/m-p/292501#M11768 <HTML><HEAD></HEAD><BODY><P>Hi, when I try to program KL05 kit in Keil, it says Erase failed(no matter if full erase or sections erase). I know that FSEC byte is 0xFE so Mass Erase is enabled and it is unsecured. The problematic firmware which stays in flash had set the write protection to first 8 kB of flash. Also, there was a Program longword command at 0x409 in which it went to Hardfault IRQ. </P><P></P><P>I can debug that firmware and see the memory conent, so I know that FSEC byte is ok and first 8 kB are write protected.</P><P>But Keil doesnt ask me to mass erase, so how can I do it manually? Or is there any possiblity to save that kit?</P><P></P><P>Ivan</P></BODY></HTML> Thu, 05 Sep 2013 19:21:43 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/write-protection-set-cannot-erase/m-p/292501#M11768 ivanrusnacko 2013-09-05T19:21:43Z Re: write protection set, cannot erase https://community.nxp.com/t5/Kinetis-Microcontrollers/write-protection-set-cannot-erase/m-p/292502#M11769 <HTML><HEAD></HEAD><BODY><P>Hi Ivan,</P><P>I'm not familiar with keil, Why you don't try doing a mass erase with CW?</P><P>Here's a tutorial about how to do it. <A href="http://mcuoneclipse.com/2012/05/28/device-is-secure/" title="http://mcuoneclipse.com/2012/05/28/device-is-secure/">Device is secure? | MCU on Eclipse</A></P><P></P><P>I hope it helps</P></BODY></HTML> Fri, 06 Sep 2013 15:12:40 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/write-protection-set-cannot-erase/m-p/292502#M11769 albertovargas 2013-09-06T15:12:40Z