  The STS-MUCH-XYTER (SMX) chip is a front-end ASIC dedicated to the readout of
Silicon Tracking System (STS) and Muon Chamber (MUCH) detectors in the
Compressed Baryonic Matter (CBM) experiment. The production of the ASIC and the
front-end boards based on it is just being started and requires thorough
testing to assure quality. The paper describes the SMX tester based on a
standard commercial Artix-7 FPGA module with an additional simple baseboard. In
the standalone configuration, the tester is controlled via IPbus and enables
full functional testing of connected SMX, front-end board (FEB), or a full
detector module. The software written in Python may easily be integrated with
higher-level testing software.
