https://community.nxp.com/t5/Kinetis-Microcontrollers/Bootloader-problems/m-p/1172760#M58601 <P>Tower_bootloader downloads into the chip.</P><P>1.How does the chip determine whether to enter the bootloader or the user program?I'm using the KV30.</P><P>2.Can the TOWer_bootloader program be debugged using JLink?</P> Mon, 26 Oct 2020 01:52:54 GMT wangb 2020-10-26T01:52:54Z https://community.nxp.com/t5/Kinetis-Microcontrollers/Bootloader-problems/m-p/1172760#M58601 <P>Tower_bootloader downloads into the chip.</P><P>1.How does the chip determine whether to enter the bootloader or the user program?I'm using the KV30.</P><P>2.Can the TOWer_bootloader program be debugged using JLink?</P> Mon, 26 Oct 2020 01:52:54 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/Bootloader-problems/m-p/1172760#M58601 wangb 2020-10-26T01:52:54Z https://community.nxp.com/t5/Kinetis-Microcontrollers/Bootloader-problems/m-p/1172813#M58605 <P>Hi Wang,</P> <P>1. Please refer to Kinetis Bootloader v2.x.x Reference manual.&nbsp;</P> <P>Figure 2-1 shows the start-up flowchart.</P> <P>2. Yes, of course.</P> Mon, 26 Oct 2020 03:23:09 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/Bootloader-problems/m-p/1172813#M58605 jingpan 2020-10-26T03:23:09Z