SPRUIZ1B July 2023 – August 2024 TMS320F28P650DH , TMS320F28P650DK , TMS320F28P650SH , TMS320F28P650SK , TMS320F28P659DH-Q1 , TMS320F28P659DK-Q1 , TMS320F28P659SH-Q1
For safety-critical applications, this device provides the ability to automatically compare ADC conversion results from multiple ADC modules against each other for consistency. The number of available safety checker tiles is specified in the device data sheet. Each ADC checker tile captures conversion results from the associated ADCs as soon as the conversions are complete, and compares the absolute value of the difference to the configured tolerance. If the computed delta is out of range, the checker can generate a trip event signal that is sent to an ePWM or output crossbar, and can also trigger an CPU interrupt. Figure 18-26 illustrates the structure and operation of an ADC result safety checker tile.