topic Flash Programming for MC9RS08KA2 in 8-bit Microcontrollers https://community.nxp.com/t5/8-bit-Microcontrollers/Flash-Programming-for-MC9RS08KA2/m-p/145048#M7037 <HTML><HEAD></HEAD><BODY><DIV> </DIV><DIV>I want to use 2 bytes flash of MC9RS08KA2 for config, but I see that: <P align="left"><SPAN style="font-family: 'Times New Roman';">Flash memory cannot be programmed or erased by software code executed from flash and <SPAN style="font-family: 'Times New Roman';">device does not include on-chip charge pump circuitry, external V</SPAN><SPAN style="font-family: 'Times New Roman'; font-size: 2;">PP</SPAN> <SPAN style="font-family: 'Times New Roman';">is required for program and erase operations.</SPAN></SPAN></P><P align="left"><SPAN style=": ; font-family: 'Times New Roman';">I would like to know if I put external Vpp and run the flash programming procedure from RAM. Can I&nbsp;program flash? If possible, someone have an example for this.</SPAN></P><P align="left"><SPAN style=": ; font-family: 'Times New Roman';">Thanks.</SPAN></P></DIV></BODY></HTML> Mon, 12 Feb 2007 20:38:36 GMT seiji 2007-02-12T20:38:36Z Flash Programming for MC9RS08KA2 https://community.nxp.com/t5/8-bit-Microcontrollers/Flash-Programming-for-MC9RS08KA2/m-p/145048#M7037 <HTML><HEAD></HEAD><BODY><DIV> </DIV><DIV>I want to use 2 bytes flash of MC9RS08KA2 for config, but I see that: <P align="left"><SPAN style="font-family: 'Times New Roman';">Flash memory cannot be programmed or erased by software code executed from flash and <SPAN style="font-family: 'Times New Roman';">device does not include on-chip charge pump circuitry, external V</SPAN><SPAN style="font-family: 'Times New Roman'; font-size: 2;">PP</SPAN> <SPAN style="font-family: 'Times New Roman';">is required for program and erase operations.</SPAN></SPAN></P><P align="left"><SPAN style=": ; font-family: 'Times New Roman';">I would like to know if I put external Vpp and run the flash programming procedure from RAM. Can I&nbsp;program flash? If possible, someone have an example for this.</SPAN></P><P align="left"><SPAN style=": ; font-family: 'Times New Roman';">Thanks.</SPAN></P></DIV></BODY></HTML> Mon, 12 Feb 2007 20:38:36 GMT https://community.nxp.com/t5/8-bit-Microcontrollers/Flash-Programming-for-MC9RS08KA2/m-p/145048#M7037 seiji 2007-02-12T20:38:36Z Re: Flash Programming for MC9RS08KA2 https://community.nxp.com/t5/8-bit-Microcontrollers/Flash-Programming-for-MC9RS08KA2/m-p/145049#M7038 <HTML><HEAD></HEAD><BODY><DIV>Hello &amp; Welcome Seiji,</DIV><DIV>&nbsp;</DIV><DIV>You don't only need <STRONG>Vpp</STRONG> outside but also a <STRONG>very special circuitry</STRONG>.</DIV><DIV>I don't have the details of the circuitry itself but you need to respect timings with <STRONG>Vpp</STRONG>.</DIV><DIV>&nbsp;</DIV><DIV>Please look at the datasheet that surely explains better than I am now.</DIV><DIV>Cheers,</DIV><DIV>Alban.</DIV></BODY></HTML> Mon, 12 Feb 2007 23:09:14 GMT https://community.nxp.com/t5/8-bit-Microcontrollers/Flash-Programming-for-MC9RS08KA2/m-p/145049#M7038 Alban 2007-02-12T23:09:14Z