Method and apparatus for verifying error correcting codes

摘要

A method and an apparatus verifies the correctness of the error correcting code algorithm and the correctness of the error correcting code implementation. An error injection module is used to inject random errors into an ECC circuit between an encoder and a decoder. The encoder encodes data bits with check bits to produce an encoded signal. A decoder decodes the encoded signal, after modification by the error injection module. The output of the decoder may be a zero error signal, a signal error signal, a multiple error signal, and an error location signal. The output signal is compared to expected values to determine if an error exists in the ECC or the ECC circuit.