tm4c1294的板子上只留了swd接口，能否通过tm4c123g评估板用LM flash软件中的ICDI swd模式给芯片烧程序？

您可以看一下 user manual 内的说明

2.3 In-Circuit Debug Interface (ICDI)

The Tiva C Series LaunchPad evaluation board comes with an on-board In-Circuit Debug Interface (ICDI). The ICDI allows for the programming and debug of the TM4C123GH6PM using the LM Flash Programmer and/or any of the supported tool chains. Note that the ICDI supports only JTAG debugging. An external debug interface can be connected for Serial Wire Debug (SWD) and SWO (trace).