Kinetis MicrocontrollersのトピックRe: Minnimum Erase size for PFLASH using C90TFS https://community.nxp.com/t5/Kinetis-Microcontrollers/Minnimum-Erase-size-for-PFLASH-using-C90TFS/m-p/250281#M7036 <HTML><HEAD></HEAD><BODY><P>Now it make sense!</P><P></P><P>Thank you Kan Li!</P><P></P><P>Best Regards, </P><P>SebaS</P></BODY></HTML> Mon, 27 May 2013 12:37:12 GMT sebasira 2013-05-27T12:37:12Z Minnimum Erase size for PFLASH using C90TFS https://community.nxp.com/t5/Kinetis-Microcontrollers/Minnimum-Erase-size-for-PFLASH-using-C90TFS/m-p/250276#M7031 <HTML><HEAD></HEAD><BODY><P>Hi all!</P><P></P><P>I'm using routines from C90TFS and working with TWRK60... I'd like to know what's the smaller size I can erase of the PFlash.... The routine FlashEraseSector has <STRONG>destination</STRONG> and <STRONG>size</STRONG> as parameters. Could I especify a word-aligned destination and size=4 and only erase those 4bytes since the destiantion address and leave all the rest of sector untouched?</P><P></P><P>Best Regards,</P><P></P><P>SebaS</P></BODY></HTML> Tue, 21 May 2013 18:13:45 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/Minnimum-Erase-size-for-PFLASH-using-C90TFS/m-p/250276#M7031 sebasira 2013-05-21T18:13:45Z Re: Minnimum Erase size for PFLASH using C90TFS https://community.nxp.com/t5/Kinetis-Microcontrollers/Minnimum-Erase-size-for-PFLASH-using-C90TFS/m-p/250277#M7032 <HTML><HEAD></HEAD><BODY><P>Seba, send your question to <A class="jx-jive-macro-user" href="https://community.nxp.com/people/stephenmcginty">stephenmcginty</A> if he is unable to answer, at least he would know who can....</P><P></P><P>Message was edited by: Monica Arvizu</P></BODY></HTML> Tue, 21 May 2013 21:11:37 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/Minnimum-Erase-size-for-PFLASH-using-C90TFS/m-p/250277#M7032 GowrishankarChi 2013-05-21T21:11:37Z Re: Minnimum Erase size for PFLASH using C90TFS https://community.nxp.com/t5/Kinetis-Microcontrollers/Minnimum-Erase-size-for-PFLASH-using-C90TFS/m-p/250278#M7033 <HTML><HEAD></HEAD><BODY><P>The sector size is the minimal size for erase operation, and it depends on the device, as I know, for K20 50MHz part, it is 1Kbytes/sector, for K60 100MHz part, it is 2Kbyte/sector. so there is no smaller size for this api, the size parameter here should be sector aligned, otherwise an error code FTFx_ERR_SIZE would be returned.</P><P></P><P>Hope that helps,</P></BODY></HTML> Wed, 22 May 2013 02:17:28 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/Minnimum-Erase-size-for-PFLASH-using-C90TFS/m-p/250278#M7033 Kan_Li 2013-05-22T02:17:28Z Re: Minnimum Erase size for PFLASH using C90TFS https://community.nxp.com/t5/Kinetis-Microcontrollers/Minnimum-Erase-size-for-PFLASH-using-C90TFS/m-p/250279#M7034 <HTML><HEAD></HEAD><BODY><P>Thanks for clarify me.</P><P></P><P>I assume it was as you said, but the size parameter would be meaningless... Why passing an unnecesary parameter that would not only confuse but also return an error?</P><P></P><P>SebaS</P></BODY></HTML> Wed, 22 May 2013 12:26:54 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/Minnimum-Erase-size-for-PFLASH-using-C90TFS/m-p/250279#M7034 sebasira 2013-05-22T12:26:54Z Re: Minnimum Erase size for PFLASH using C90TFS https://community.nxp.com/t5/Kinetis-Microcontrollers/Minnimum-Erase-size-for-PFLASH-using-C90TFS/m-p/250280#M7035 <HTML><HEAD></HEAD><BODY><P>The size parameter is used to specify how many sectors are going be to erased, for example, if the sector size is 2K, and the possible size parameter could be 2K, 4K, 6K and so on. The API would check whether the size parameter is sector <SPAN style="font-family: 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; background-color: #ffffff;">aligned</SPAN>, and determine how many sectors to be erased. so this parameter is not needed by FTFL module, but the driver code. Please refer to the following for details.</P><P></P><P><span class="lia-inline-image-display-wrapper" image-alt="a1.JPG"><img src="https://community.nxp.com/t5/image/serverpage/image-id/119401i4FA429A43C842C15/image-size/large?v=v2&amp;px=999" role="button" title="a1.JPG" alt="a1.JPG" /></span></P><P></P><P>Hope that helps,</P></BODY></HTML> Thu, 23 May 2013 01:28:30 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/Minnimum-Erase-size-for-PFLASH-using-C90TFS/m-p/250280#M7035 Kan_Li 2013-05-23T01:28:30Z Re: Minnimum Erase size for PFLASH using C90TFS https://community.nxp.com/t5/Kinetis-Microcontrollers/Minnimum-Erase-size-for-PFLASH-using-C90TFS/m-p/250281#M7036 <HTML><HEAD></HEAD><BODY><P>Now it make sense!</P><P></P><P>Thank you Kan Li!</P><P></P><P>Best Regards, </P><P>SebaS</P></BODY></HTML> Mon, 27 May 2013 12:37:12 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/Minnimum-Erase-size-for-PFLASH-using-C90TFS/m-p/250281#M7036 sebasira 2013-05-27T12:37:12Z Re: Minnimum Erase size for PFLASH using C90TFS https://community.nxp.com/t5/Kinetis-Microcontrollers/Minnimum-Erase-size-for-PFLASH-using-C90TFS/m-p/250282#M7037 <HTML><HEAD></HEAD><BODY><P>Hi SebaS,</P><P></P><P>You are welcome!! Please kindly let me know when you have any issue.</P><P></P><P>Have a nice day!!</P><P></P><P>Best Regards,</P><P>Kan Li</P><P>Technical Information &amp; Commercial Support AP (Kinetis/ColdFire)</P><P>Freescale Semiconductor (China) Limited Shanghai Branch Office</P></BODY></HTML> Tue, 28 May 2013 02:44:54 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/Minnimum-Erase-size-for-PFLASH-using-C90TFS/m-p/250282#M7037 Kan_Li 2013-05-28T02:44:54Z