https://community.nxp.com/t5/K32-L-Series-Microcontrollers/Bootloader-Development-for-K32L2B31VFM0A/m-p/1179411#M15 <P>UART SERIAL BOOTLOADER FOR K32L2B31VFM0A</P><P>I'm using the target device as a K32L2B31VFM0A and the host device as an Nrf52840 microcontroller.</P><P>I want to perform an application firmware upgrade of the target device( K32L2B31VFM0A) from the host microcontroller (nRF52840).</P><P>I'm using only four pins for the serial bootloader.</P><P>LPUART0_RX -Prot PTA1</P><P>LPUART0_TX - Port PTA2</P><P>NMI_b (BOOTCFG0) - Port PAT4</P><P>Reset -Port PTA20</P><P>Question 1: can you provide entry boot sequance using boot config pin?<BR />Question 2: can you please give suggestions on how to do it?<BR />Question 3: I have to download the host application firmware file (blhost_2.6.2.zip) but this source is in.cpp, so can you provide source code in.c file.?<BR />Question 4: As per attached screen shot write memory command howmany byte write at a time?,can you provide TX and RX frame format of memory command(in documment example generic frame format not match)?<BR />Question 5: data command support 32byte only,we are using UART periphiral can we increse data packet byte length.?<BR />Question 6: Firmware upgrade resume possible? can you provide step?<BR />Question 7: How to know host device application file write is ok ..App CRC command is supported for this controller?</P> Fri, 06 Nov 2020 11:52:24 GMT kadam 2020-11-06T11:52:24Z https://community.nxp.com/t5/K32-L-Series-Microcontrollers/Bootloader-Development-for-K32L2B31VFM0A/m-p/1179411#M15 <P>UART SERIAL BOOTLOADER FOR K32L2B31VFM0A</P><P>I'm using the target device as a K32L2B31VFM0A and the host device as an Nrf52840 microcontroller.</P><P>I want to perform an application firmware upgrade of the target device( K32L2B31VFM0A) from the host microcontroller (nRF52840).</P><P>I'm using only four pins for the serial bootloader.</P><P>LPUART0_RX -Prot PTA1</P><P>LPUART0_TX - Port PTA2</P><P>NMI_b (BOOTCFG0) - Port PAT4</P><P>Reset -Port PTA20</P><P>Question 1: can you provide entry boot sequance using boot config pin?<BR />Question 2: can you please give suggestions on how to do it?<BR />Question 3: I have to download the host application firmware file (blhost_2.6.2.zip) but this source is in.cpp, so can you provide source code in.c file.?<BR />Question 4: As per attached screen shot write memory command howmany byte write at a time?,can you provide TX and RX frame format of memory command(in documment example generic frame format not match)?<BR />Question 5: data command support 32byte only,we are using UART periphiral can we increse data packet byte length.?<BR />Question 6: Firmware upgrade resume possible? can you provide step?<BR />Question 7: How to know host device application file write is ok ..App CRC command is supported for this controller?</P> Fri, 06 Nov 2020 11:52:24 GMT https://community.nxp.com/t5/K32-L-Series-Microcontrollers/Bootloader-Development-for-K32L2B31VFM0A/m-p/1179411#M15 kadam 2020-11-06T11:52:24Z