ispVME Embedded allows programming of Lattice FPGA devices in embedded systems through the JTAG/SSPI, or CPU ports. The software is distributed in source code form and is open to re-distribution and modification where applicable.
Under ispLever installation directory, you can find it is located under its sub-directory ispvmsystem\ispVMEmbedded\SourceCode\src.
or
Under the Diamond installation directory, it is located under its subdirectory \diamond\<software_version>\embedded_source.