https://community.nxp.com/t5/FreeMASTER/FreeMaster-don-t-display-the-value/m-p/1736310#M1479 <P>Hi, All,&nbsp; When I use the freemaster , it seems that the communication between PC and MCU is correct, but On the PC freemaster interface, the value don't displayed but only the "?".</P><P>Req: 2B 22 02 3C 04 2D</P><P>Rep: 2B 22 04 88 13 00 00 78</P><P>Is there any problem with the data frame or the freemaster setting?</P><P>&nbsp;</P><P>Thanks</P><P>&nbsp;</P> Tue, 10 Oct 2023 06:53:57 GMT peigong 2023-10-10T06:53:57Z https://community.nxp.com/t5/FreeMASTER/FreeMaster-don-t-display-the-value/m-p/1736310#M1479 <P>Hi, All,&nbsp; When I use the freemaster , it seems that the communication between PC and MCU is correct, but On the PC freemaster interface, the value don't displayed but only the "?".</P><P>Req: 2B 22 02 3C 04 2D</P><P>Rep: 2B 22 04 88 13 00 00 78</P><P>Is there any problem with the data frame or the freemaster setting?</P><P>&nbsp;</P><P>Thanks</P><P>&nbsp;</P> Tue, 10 Oct 2023 06:53:57 GMT https://community.nxp.com/t5/FreeMASTER/FreeMaster-don-t-display-the-value/m-p/1736310#M1479 peigong 2023-10-10T06:53:57Z https://community.nxp.com/t5/FreeMASTER/FreeMaster-don-t-display-the-value/m-p/1736383#M1480 <P>Hello,</P> <P>you are showing two requests (2b,22 = read memory), not the request and response. Without this, I cannot tell what exactly is wrong.&nbsp;</P> <P>Typically, the ? is displayed when FreeMASTER cannot read the data because of FMSTR_TSA_SAFETY is enabled and FreeMASTER tries to access a "forbidden" variable which is not listed in any TSA table. If you use TSA_SAFETY, try to disable it first.</P> <P>If this is a different issue, please send us the real log entry with all details of the request and response on the line.</P> <P>Regards,<BR />Michal</P> Tue, 10 Oct 2023 08:13:31 GMT https://community.nxp.com/t5/FreeMASTER/FreeMaster-don-t-display-the-value/m-p/1736383#M1480 MichalH 2023-10-10T08:13:31Z