Searched hist:314512 (Results 1 - 2 of 2) sorted by relevance
/freebsd-11-stable/sys/arm/ti/am335x/ | ||
H A D | am335x_dmtpps.c | diff 314512 Wed Mar 01 21:26:45 MST 2017 ian MFC r312859: Configure the timer capture pin to input mode in the timer control register, in addition to configuring it as input with the pinmux driver. There was a control register bit commented as "no desc in datasheet". A later revision of the manual reveals the bit to be an input/output control for the timer pin. In addition to configuring capture or pulse mode, you apparently have to separately configure the pin direction in the timer control register. Before this change, the timer block was apparently driving a signal onto a pad configured by pinmux as input. Capture mode still accidentally worked for me during testing because I was using a very strong signal source that just out-muscled the weaker drive from the misconfigured pin. |
H A D | am335x_dmtreg.h | diff 314512 Wed Mar 01 21:26:45 MST 2017 ian MFC r312859: Configure the timer capture pin to input mode in the timer control register, in addition to configuring it as input with the pinmux driver. There was a control register bit commented as "no desc in datasheet". A later revision of the manual reveals the bit to be an input/output control for the timer pin. In addition to configuring capture or pulse mode, you apparently have to separately configure the pin direction in the timer control register. Before this change, the timer block was apparently driving a signal onto a pad configured by pinmux as input. Capture mode still accidentally worked for me during testing because I was using a very strong signal source that just out-muscled the weaker drive from the misconfigured pin. |
Completed in 190 milliseconds