The SYStem.DETECT command on Arm devices is not designed to identify the CPU type, but rather to detect the Debug Access Port (DAP) in the JTAG chain. To verify CPU support, first check whether your chip is listed under SYStem.CPU. If it is not, please contact Lauterbach Support at https://support.lauterbach.com/new-ticket and provide your TRACE32 software version. You can also confirm whether your chip is officially supported by Lauterbach using the search field on the Lauterbach website.