Hi Valeria! The FSM module in the TSC_ADC_SS can either get triggered by software or by an external hardware event (TIMER4-7 or PRU_ICSS pr1_host_intr0). See SRM chapter 12 <http://www.ti.com/lit/pdf/spruh73> for details.
The best way how to synchronize with an external clock depends on the clock frequency and the timming accuracy requirements. For high accuracy or above ~10 KHz you may need customized software. But below that frequency you may be happy with a simple solution: The ADC operates at a fast sampling rate and the host CPU just reads the current value when the external clock fires. This is feasible with libpruio <http://beagleboard.org/project/libpruio/>. (You may see some latency when the host CPU is busy by any system interrupt.) BR BTW: Cross-compiling adds further problems. Why not compiling on the BBB? -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.