The FT51A Toolchain is a free tool to enable code development and debug for the FT51A series and are based on plug-ins for the free popular
IDE using the SDCC compiler. Driver support for each of the main functional units of the MCUs are also included in the installation package, provided as
C code and precompiled binaries in addition to sample projects.
Click here to download and install the FT51A Toolchain
Refer to AN_352 FT51A Toolchain Installation Guide
for more information.