SPRUHZ7K August 2015 – April 2024 AM5706 , AM5708 , AM5716 , AM5718 , AM5718-HIREL
There are four modes of operation for the sync signals: cyclic mode, single shot mode, cyclic with acknowledge mode, and single shot with acknowledge mode. Figure 30-70 shows examples of these modes. The start time is set by the PRUSS_IEP_SYNC_START register. The cycle time is configured by the PRUSS_IEP_SYNC0_PERIOD register. The pulse length is defined by PRUSS_IEP_SYNC_PWIDTH register.)
Figure 30-70 PRU-ICSS IEP SYNC0 Signal Generation ModesIn SYNC1 dependent mode (PRUSS_IEP_SYNC_CTRL.SYNC1_IND_EN = 0), SYNC1 depends on SYNC0 and the start time of the SYNC1 can be defined by the PRUSS_IEP_SYNC1_DELAY register. Figure 30-71 shows different examples when changing the value in the PRUSS_IEP_SYNC1_DELAY register. Note if the SYNC1 delay time is 0, SYNC1 reflects SYNC0.
Cyclic generation cannot be used for network time synchronized applications because only the CMP1/CMP2 hit occurs in the compensated time domain.
Figure 30-71 Examples of the Dependent Mode of SYNC1