MPC5xxxのトピックPower Supply and Reset microcontroller from SBC https://community.nxp.com/t5/MPC5xxx/Power-Supply-and-Reset-microcontroller-from-SBC/m-p/768428#M11010 <HTML><HEAD></HEAD><BODY><P>My setup - KITFS6522LAEEVM (FS6500) SBC with the MPC5643L (mounted on the minimodule + motherboard).&nbsp;I have two questions that follow these images.<BR /><span class="lia-inline-image-display-wrapper" image-alt="pastedImage_1.png"><img src="https://community.nxp.com/t5/image/serverpage/image-id/19998i207E080149F2E56B/image-size/large?v=v2&amp;px=999" role="button" title="pastedImage_1.png" alt="pastedImage_1.png" /></span><span class="lia-inline-image-display-wrapper" image-alt="pastedImage_2.png"><img src="https://community.nxp.com/t5/image/serverpage/image-id/20306iD499E156D01718F2/image-size/large?v=v2&amp;px=999" role="button" title="pastedImage_2.png" alt="pastedImage_2.png" /></span></P><P><STRONG>Questions</STRONG><BR />1. When I use the JTAG debugger to program the microcontroller, I can NOT provide a reset from the SBC to the microcontroller because the JTAG debugger holds the reset line. Is this understanding correct?? For now I am using the serial programming (SCI) using RappID bootloader. The question is more a clarification.&nbsp;</P><P></P><P>2. I can program the microcontroller through the SCI when I use the standalone DC power supply of 12V but I cannot program the&nbsp;<SPAN>microcontroller through the SCI&nbsp;when I use the power supply from the SBC (3.3V). I notice the SCI&nbsp;line voltages are the SAME when I use the two different power supplies. Why can I not program through the SCI while using the power supply (3.3V) from the SBC as indicated in the image below?</SPAN><SPAN><BR /><span class="lia-inline-image-display-wrapper" image-alt="pastedImage_4.png"><img src="https://community.nxp.com/t5/image/serverpage/image-id/20261i0EC51A32F1A728D8/image-size/large?v=v2&amp;px=999" role="button" title="pastedImage_4.png" alt="pastedImage_4.png" /></span><BR /><BR /><BR />Thank you.</SPAN></P></BODY></HTML> Fri, 23 Feb 2018 09:28:07 GMT raghurajappa 2018-02-23T09:28:07Z Power Supply and Reset microcontroller from SBC https://community.nxp.com/t5/MPC5xxx/Power-Supply-and-Reset-microcontroller-from-SBC/m-p/768428#M11010 <HTML><HEAD></HEAD><BODY><P>My setup - KITFS6522LAEEVM (FS6500) SBC with the MPC5643L (mounted on the minimodule + motherboard).&nbsp;I have two questions that follow these images.<BR /><span class="lia-inline-image-display-wrapper" image-alt="pastedImage_1.png"><img src="https://community.nxp.com/t5/image/serverpage/image-id/19998i207E080149F2E56B/image-size/large?v=v2&amp;px=999" role="button" title="pastedImage_1.png" alt="pastedImage_1.png" /></span><span class="lia-inline-image-display-wrapper" image-alt="pastedImage_2.png"><img src="https://community.nxp.com/t5/image/serverpage/image-id/20306iD499E156D01718F2/image-size/large?v=v2&amp;px=999" role="button" title="pastedImage_2.png" alt="pastedImage_2.png" /></span></P><P><STRONG>Questions</STRONG><BR />1. When I use the JTAG debugger to program the microcontroller, I can NOT provide a reset from the SBC to the microcontroller because the JTAG debugger holds the reset line. Is this understanding correct?? For now I am using the serial programming (SCI) using RappID bootloader. The question is more a clarification.&nbsp;</P><P></P><P>2. I can program the microcontroller through the SCI when I use the standalone DC power supply of 12V but I cannot program the&nbsp;<SPAN>microcontroller through the SCI&nbsp;when I use the power supply from the SBC (3.3V). I notice the SCI&nbsp;line voltages are the SAME when I use the two different power supplies. Why can I not program through the SCI while using the power supply (3.3V) from the SBC as indicated in the image below?</SPAN><SPAN><BR /><span class="lia-inline-image-display-wrapper" image-alt="pastedImage_4.png"><img src="https://community.nxp.com/t5/image/serverpage/image-id/20261i0EC51A32F1A728D8/image-size/large?v=v2&amp;px=999" role="button" title="pastedImage_4.png" alt="pastedImage_4.png" /></span><BR /><BR /><BR />Thank you.</SPAN></P></BODY></HTML> Fri, 23 Feb 2018 09:28:07 GMT https://community.nxp.com/t5/MPC5xxx/Power-Supply-and-Reset-microcontroller-from-SBC/m-p/768428#M11010 raghurajappa 2018-02-23T09:28:07Z Re: Power Supply and Reset microcontroller from SBC https://community.nxp.com/t5/MPC5xxx/Power-Supply-and-Reset-microcontroller-from-SBC/m-p/768429#M11011 <HTML><HEAD></HEAD><BODY><P><A class="jx-jive-macro-user" href="https://community.nxp.com/people/dumitru-daniel.popa">dumitru-daniel.popa</A>‌, could you also please help me with the question above? Thank you.&nbsp;</P></BODY></HTML> Mon, 05 Mar 2018 10:34:20 GMT https://community.nxp.com/t5/MPC5xxx/Power-Supply-and-Reset-microcontroller-from-SBC/m-p/768429#M11011 raghurajappa 2018-03-05T10:34:20Z