TCL (Tool Command Language) is a powerful scripting tool for FPGA engineers that enables reproducible, automated project workflows. A hands-on walkthrough demonstrates building a Xilinx xc7a35tcpg236-1 project from scratch using TCL scripts covering project creation, fileset management, setting VHDL as the target language, running synthesis and implementation with parallel jobs, bitstream generation, and simulation with waveform automation. The approach enables CI-friendly pipelines triggered by commits, replacing error-prone GUI interactions.
