On Mon, Jan 08, 2018 at 01:59:31PM -0800, Tony Lindgren wrote: > * Ladislav Michl <ladis@xxxxxxxxxxxxxx> [180108 15:46]: > > Here it seems hardware can capture both edges, but I do not see a way > > how to tell it I want start from either low to high or high to low > > transition. Clues? > > At least dm3730 TRM documents TCM bits [9:8] for TCLR, but you > probably know that already.. > > If you're having hard time getting things starting, maybe something > like this helps: > > stop timer in TCLR register > configure timer in TCLR > write some value to TLDR, maybe 0? > set ST bit in TCLR to start Let me clarify it a bit more. I have no problem starting timer and capture events. I just didn't find a way how to tell hardware I want to start with for example rising edge, so rising edge goes to TCAR1 and failing edge to TCAR2. Substracting those gives pulse width. ladis -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
