A rolling CRC based HDMI function testing method design

Cyclic redundancy check (CRC) plays a significant role in enhancing the safety and reliability of data transmission. To improve the check capacity of CRC, a rolling CRC algorithm that generates check data using two generator polynomials is proposed, which can eliminate the previous defects of high failure rate and resource consumption. Being applied in the test on high definition multimedia interface (HDMI), the result of implementation of the field programmable gate array (FPGA) shows that new algorithm can improve the check capacity on the basis of low logic complexity and thus ensure more reliable HDMI test. Experiments show that this algorithm is more effective and highly capable of detecting errors.