New UL-certified SafeTI software packages from Texas Instruments Incorporated (TI) help make designing functional safety consumer applications using TI C2000 real-time control microcontrollers (MCUs) easier and faster. The software in these SafeTI software packages is UL-certified, as recognized components, to the UL 1998:2008 Class 1 standard, and is compliant with IEC 60730-1:2010 Class B, both of which include home appliances, arc detectors, power converters, power tools, e-bikes, and many others.
SafeTI software packages are available for select TI C2000 MCUs and can be embedded in applications using these MCUs to help customers simplify certification for functional safety-compliant consumer devices. Because of the similarity of the two standards, the IEC 60730 software libraries can also help assist customers developing consumer applications compliant with the IEC 60335-1:2010 standard.
The software packages include ready-to-run, simple application examples with software libraries UL-certified, as recognized components, for select TI C2000 MCUs, and can be downloaded from the SafeTI software folder, along with supporting safety manuals and user guides. The software library allows for embedding a variety of system tests required by IEC 60730 and UL 1998, which are described in the supporting safety manual.
Projects built with the software library demonstrate how to create power-on self-test (POST) and periodic self-test (PST) with reporting conducted through a UART peripheral connection. The user’s guide demonstrates how to integrate the testing into functional safety consumer application designs. The C2000 MCUs include a special hardware element – parallel signature analysis (PSA) – that allows for a 40-bit cyclic redundancy check (CRC) of the data bus on a cycle-by-cycle basis for additional safety without affecting the main CPU or software application.