Hardware-based dynamic cyclic-redundancy check (CRC) generator for automotive application

A method performed by a copy engine of a computing device for generating a cyclic redundancy check (CRC) in a safety network, comprising:

• copying, in hardware of the copy engine, a first dataset received from an interface bus to obtain a first dataset copy;
• copying, in hardware of the copy engine, a second dataset received from the interface bus to obtain a second dataset copy;
• generating, via a first stream-wise CRC engine in the hardware of the copy engine, a first CRC value for the first dataset copy and, in parallel, generating, via a second stream-wise CRC engine in the hardware of the copy engine, a second CRC value for the second dataset copy;
• transmitting, to a processor of the computing device, a first stream-wise CRC message including the first dataset copy and the first CRC value;
• and
• transmitting, to the processor, a second stream-wise CRC message including the second dataset copy and the second CRC value.

A copy engine of a computing device, comprising:

• means for copying a first dataset received from an interface bus to obtain a first dataset copy;
• means for copying a second dataset received from the interface bus to obtain a second dataset copy;
• means for generating a first CRC value for the first dataset copy and a second CRC value for the second dataset copy in parallel;
• means for transmitting, to a processor of the computing device, a first stream-wise CRC message including the first dataset copy and the first CRC value;
• and
• means for transmitting, to the processor, a second stream-wise CRC message including the second dataset copy and the second CRC value.

A non-transitory processor-executable medium having stored thereon processor-executable instructions configured to cause a copy engine of a computing device to perform operations comprising:

• copying, in hardware of the copy engine, a first dataset received from an interface bus to obtain a first dataset copy;
• copying, in hardware of the copy engine, a second dataset received from the interface bus to obtain a second dataset copy;
• generating, via a first stream-wise CRC engine in the hardware of the copy engine, a first CRC value for the first dataset copy and, in parallel, generating, via a second stream-wise CRC engine in the hardware of the copy engine, a second CRC value for the second dataset copy;
• transmitting, to a processor of the computing device, a first stream-wise CRC message including the first dataset copy and the first CRC value;
• and
• transmitting, to the processor, a second stream-wise CRC message including the second dataset copy and the second CRC value.