Kinetis Microcontrollers中的主题 Re: ROM bootloader WriteMemory fails https://community.nxp.com/t5/Kinetis-Microcontrollers/ROM-bootloader-WriteMemory-fails/m-p/472356#M28596 <HTML><HEAD></HEAD><BODY><P>Problem solved!.</P><P>I had a subtle bug in the calculation of the data packet crc.</P><P>Thanks for the help.</P></BODY></HTML> Mon, 25 Apr 2016 16:26:14 GMT richardmoran 2016-04-25T16:26:14Z ROM bootloader WriteMemory fails https://community.nxp.com/t5/Kinetis-Microcontrollers/ROM-bootloader-WriteMemory-fails/m-p/472353#M28593 <HTML><HEAD></HEAD><BODY><P>Hi everyone.</P><P>I'm trying to program some KL27s using the ROMN bootloader via SPI in a custom circuit and I am unable to write to memory using the WriteMemory command.</P><P></P><P>I use the FlashEraseUnsecure command then do the WriteMemory command which gets nacked at the first data packet.</P><P></P><P>Below a a capture of the packets sent over the SPI bus when attempting to set 100 bytes at address 0 to 0xA2</P><P></P><P>erase cmd&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 5A A4 4 0 F6 61 0D&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </P><P>ack&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 5A A1&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </P><P>Generic response&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 5A A4 0C 0 54 81 A0 0 0 2 0 0 0 0 0D 0 0 0&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </P><P>ack&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 5A A1&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </P><P>write cmd&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 5A A4 0C 0 6D 3A 4 1 0 2 0 0 0 0 64 0 0 0 0 0&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </P><P>ack&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 5A A1&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </P><P>Generic response&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 5A A4 0C 0 23 72 A0 0 0 2 0 0 0 0 4 0 0 0&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </P><P>ack&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 5A A1&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </P><P>data&nbsp; packet&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 5A A5 20 0 B4 B0 A2 A2 A2 A2 A2 A2 A2 A2 A2 A2 A2 A2 A2 A2 A2 A2 A2 A2 A2 A2 A2 A2 A2&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; A2 A2 A2 A2 A2 A2 A2 A2 A2</P><P>nack&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 5A A2&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </P><P></P><P>Does anyone have any ideas what I'm doing wrong?</P><P></P><P>Cheers,</P><P>Rich</P></BODY></HTML> Sat, 23 Apr 2016 16:11:03 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/ROM-bootloader-WriteMemory-fails/m-p/472353#M28593 richardmoran 2016-04-23T16:11:03Z Re: ROM bootloader WriteMemory fails https://community.nxp.com/t5/Kinetis-Microcontrollers/ROM-bootloader-WriteMemory-fails/m-p/472354#M28594 <HTML><HEAD></HEAD><BODY><P>What activity is going on, on other ports?&nbsp; I've had problems with the 27 bootloader loading from USB if there is serial activity on a UART.</P></BODY></HTML> Mon, 25 Apr 2016 12:12:08 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/ROM-bootloader-WriteMemory-fails/m-p/472354#M28594 bobpaddock 2016-04-25T12:12:08Z Re: ROM bootloader WriteMemory fails https://community.nxp.com/t5/Kinetis-Microcontrollers/ROM-bootloader-WriteMemory-fails/m-p/472355#M28595 <HTML><HEAD></HEAD><BODY><P>There's no other activity going on.&nbsp; LPUART0 and 1 are not connected to anything at the moment and I'm not using I2C.&nbsp; </P><P>Apart from the SPI, it's all digital I/O which aren't changing states and 1 channel of ADC, which should be disabled in bootloader mode anyway.</P></BODY></HTML> Mon, 25 Apr 2016 12:24:36 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/ROM-bootloader-WriteMemory-fails/m-p/472355#M28595 richardmoran 2016-04-25T12:24:36Z Re: ROM bootloader WriteMemory fails https://community.nxp.com/t5/Kinetis-Microcontrollers/ROM-bootloader-WriteMemory-fails/m-p/472356#M28596 <HTML><HEAD></HEAD><BODY><P>Problem solved!.</P><P>I had a subtle bug in the calculation of the data packet crc.</P><P>Thanks for the help.</P></BODY></HTML> Mon, 25 Apr 2016 16:26:14 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/ROM-bootloader-WriteMemory-fails/m-p/472356#M28596 richardmoran 2016-04-25T16:26:14Z