https://community.nxp.com/t5/Kinetis-Microcontrollers/How-to-access-the-KW45B41Z83-chip-address-through-SWD-protocol/m-p/1727148#M65556 <P>I am writing a tool about communicating with the KW45 chip, but now I have an ACK FAULT when I access the chip. What initialization operations should I do before accessing the chip memory, such as which registers should I read and write?</P><P>Write 0xA05F0001 to 0xE000EDF0 ：</P><P>(1)TAR = 0xE000EDF0&nbsp; &nbsp; &nbsp; &nbsp;ACK OK<BR />(2)DRW = 0xA05F0001&nbsp; &nbsp; &nbsp; ACK FAULT</P> Thu, 21 Sep 2023 12:42:20 GMT Lance 2023-09-21T12:42:20Z https://community.nxp.com/t5/Kinetis-Microcontrollers/How-to-access-the-KW45B41Z83-chip-address-through-SWD-protocol/m-p/1727148#M65556 <P>I am writing a tool about communicating with the KW45 chip, but now I have an ACK FAULT when I access the chip. What initialization operations should I do before accessing the chip memory, such as which registers should I read and write?</P><P>Write 0xA05F0001 to 0xE000EDF0 ：</P><P>(1)TAR = 0xE000EDF0&nbsp; &nbsp; &nbsp; &nbsp;ACK OK<BR />(2)DRW = 0xA05F0001&nbsp; &nbsp; &nbsp; ACK FAULT</P> Thu, 21 Sep 2023 12:42:20 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/How-to-access-the-KW45B41Z83-chip-address-through-SWD-protocol/m-p/1727148#M65556 Lance 2023-09-21T12:42:20Z