Abstract: Magnetic-field power-supply controlling system needs to update wave-data in time for the Heavy lon Research Facility at Lanzhou Cooler Storage Ring. So a software for the system with data-driven pattern was designed and optimized adopting the TMS320C6713 chip as the central processor, based on FPGA logic programming and double-FIFO data cache technique. The Aifken algorithm is used to process the updated wave-data and reduce the primitive wave-data’s size to 1/1024, which improves the data transmission and storage efficiency. Practice shows that the system works stably and reliably and can meet the power supply control’s request.