topic Re: Kboot Flash Resident As I2C Master in Kinetis Microcontrollers https://community.nxp.com/t5/Kinetis-Microcontrollers/Kboot-Flash-Resident-As-I2C-Master/m-p/444832#M26252 <HTML><HEAD></HEAD><BODY><P>Thanks Jorge,</P><P></P><P>I see your point about using my own bootloader. </P></BODY></HTML> Mon, 21 Sep 2015 20:05:18 GMT alex323qp 2015-09-21T20:05:18Z Kboot Flash Resident As I2C Master https://community.nxp.com/t5/Kinetis-Microcontrollers/Kboot-Flash-Resident-As-I2C-Master/m-p/444830#M26250 <HTML><HEAD></HEAD><BODY><P>Hi, is there any example of how to use <SPAN style="color: #51626f; font-family: arial, helvetica, 'helvetica neue', verdana, sans-serif;">KBOOT</SPAN> v1.2 in i2c master mode? The idea is to read the new binary program from an i2c EEPROM.</P><P></P><P>Thanks,</P><P></P><P>Alex.</P></BODY></HTML> Sat, 12 Sep 2015 07:24:59 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/Kboot-Flash-Resident-As-I2C-Master/m-p/444830#M26250 alex323qp 2015-09-12T07:24:59Z Re: Kboot Flash Resident As I2C Master https://community.nxp.com/t5/Kinetis-Microcontrollers/Kboot-Flash-Resident-As-I2C-Master/m-p/444831#M26251 <HTML><HEAD></HEAD><BODY><P>Hello Alexander Agudelo:</P><P></P><P>Unfortunately there is no example of using KBOOT in I2C master mode. Only I2C device mode is supported using <STRONG>blhost</STRONG> tool together with another MCU as bus translator (<STRONG>BusPal</STRONG>).</P><P></P><P>Actually if using I2C in master mode by reading from an EEPROM then it should be easier to implement your own bootloader instead of reusing KBOOT, which is a very complex firmware due to the support of all the interfaces and configurations.</P><P></P><P>You do not mention the Kinetis part you have but basically you need 2 things:</P><P></P><P><STRONG>1)</STRONG> EEPROM I2C low level driver. Some references:</P><P></P><P><A href="http://mcuoneclipse.com/2013/08/18/driver-for-microchip-24xx-serial-eeprom/" title="http://mcuoneclipse.com/2013/08/18/driver-for-microchip-24xx-serial-eeprom/">Driver for Microchip 24xx Serial EEPROM | MCU on Eclipse</A></P><P><A href="https://community.nxp.com/docs/DOC-102521">KSDK I2C EEPROM Example</A></P><P></P><P><STRONG>2)</STRONG> Flash erase/write routines. You can use standalone <A href="http://cache.freescale.com/files/32bit/software/C90TFS_FLASH_DRIVER.exe"><STRONG>C90TFS</STRONG></A> or the same driver but integrated with <A href="http://www.freescale.com/tools/embedded-software-and-tools/run-time-software/kinetis-software-and-tools/development-platforms-with-mbed/software-development-kit-for-kinetis-mcus:KINETIS-SDK?tid=redKINETIS_SDK"><STRONG>KSDK</STRONG></A>.</P><P><BR />Regards!,<BR />Jorge Gonzalez</P><P></P><P>-----------------------------------------------------------------------------------------------------------------------<BR />Note: If this post answers your question, please click the Correct Answer button. Thank you!<BR />-----------------------------------------------------------------------------------------------------------------------</P></BODY></HTML> Wed, 16 Sep 2015 02:47:49 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/Kboot-Flash-Resident-As-I2C-Master/m-p/444831#M26251 Jorge_Gonzalez 2015-09-16T02:47:49Z Re: Kboot Flash Resident As I2C Master https://community.nxp.com/t5/Kinetis-Microcontrollers/Kboot-Flash-Resident-As-I2C-Master/m-p/444832#M26252 <HTML><HEAD></HEAD><BODY><P>Thanks Jorge,</P><P></P><P>I see your point about using my own bootloader. </P></BODY></HTML> Mon, 21 Sep 2015 20:05:18 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/Kboot-Flash-Resident-As-I2C-Master/m-p/444832#M26252 alex323qp 2015-09-21T20:05:18Z