SPRUJ79 November 2024 F29H850TU
Each ADC result safety checker tile can generate an interrupt signal from out-of-tolerance (OOT) flags and result overflow flags (RESxOVF). These events are aggregated into a single interrupt signal, CHECKINT. Figure 1-1 shows a block diagram of the result checker interrupt aggregation. To enable a checker flag as a source for CHECKINT, write 1 to the corresponding bit in the CHECKINTSEL1, CHECKINTSEL2 or CHECKINTSEL3 register. To clear a previously set checker interrupt flag, write 1 to the CHECKINTFLGCLR.CHECKINTCLR register.
In addition, safety checker tiles can also generate events that can be sent to the X-BAR, so that automatic hardware actions such as an ePWM trip can be generated. This device has 4 checker event signals (CHECKEVTx) that can be generated. For each event signal, any number of checker tile OOT or OVF flags can be aggregated into the single event signal. Figure 24-29 shows a block diagram of the ADC result checker event aggregation. To enable a checker flag as a source for a CHECKEVT signal, write 1 to the corresponding bit in the CHECKEVTxSEL1, CHECKEVTxSEL2 or CHECKEVTxSEL3 registers.