产品设计和制造中的校验和：如何防止标签错误、条形码扫描错误和代价高昂的召回
A practical guide to checksums in product design and manufacturing: GS1 check digits, CRC, SHA-256, firmware verification, label control and
固件
Firmware is a specialized type of software that is embedded into hardware devices to control their functions and operations. It acts as an intermediary between the hardware and higher-level software applications, enabling the device to perform specific tasks and respond to user inputs. Typically stored in non-volatile memory, firmware is crucial for the proper functioning of electronic devices, ranging from consumer electronics to industrial machinery.