The CHARM Radiation Test Board (CRaTeBo) is a FPGA radiation-testing platform which allows to test FPGAs and FPGA designs in representative LHC radiation environments in the CERN CHARM facility without having to care about the radiation tolerance of the platform or the communication link.

It is a versatile radiation-tolerant board where each part of the system (power, communication, FPGA & front-end) is installed on modules that can be swapped depending on the need. This was done to give maximum flexibility on the communication links (can be high-speed through optical link or wireless through RF module), on the power scheme (Radhard or radiation tolerant modules can be used, voltages can be changed easily by changing the modules) and on the FPGA under test. The FPGA under test is mounted on a SOM module with enough IOs to populate two HPC FMCs, in addition to regular IOs mounted on the carrier board (Trigger, Clock, UART etc..).

When fully deployed, the users will have access to the back-end system where they can put their test routines with a minimum amount of effort on the development side. For the moment two FPGA modules were developed: one for the PolarFire FPGA from Microchip and one for the GateMate FPGA from Cologne Chip.