diff options
Diffstat (limited to 'Documentation/ABI/testing/sysfs-bus-iio-timer-stm32')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-bus-iio-timer-stm32 | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-bus-iio-timer-stm32 b/Documentation/ABI/testing/sysfs-bus-iio-timer-stm32 index 230020e06677..deb015935683 100644 --- a/Documentation/ABI/testing/sysfs-bus-iio-timer-stm32 +++ b/Documentation/ABI/testing/sysfs-bus-iio-timer-stm32 @@ -16,6 +16,54 @@ Description: - "OC2REF" : OC2REF signal is used as trigger output. - "OC3REF" : OC3REF signal is used as trigger output. - "OC4REF" : OC4REF signal is used as trigger output. + Additional modes (on TRGO2 only): + - "OC5REF" : OC5REF signal is used as trigger output. + - "OC6REF" : OC6REF signal is used as trigger output. + - "compare_pulse_OC4REF": + OC4REF rising or falling edges generate pulses. + - "compare_pulse_OC6REF": + OC6REF rising or falling edges generate pulses. + - "compare_pulse_OC4REF_r_or_OC6REF_r": + OC4REF or OC6REF rising edges generate pulses. + - "compare_pulse_OC4REF_r_or_OC6REF_f": + OC4REF rising or OC6REF falling edges generate pulses. + - "compare_pulse_OC5REF_r_or_OC6REF_r": + OC5REF or OC6REF rising edges generate pulses. + - "compare_pulse_OC5REF_r_or_OC6REF_f": + OC5REF rising or OC6REF falling edges generate pulses. + + +-----------+ +-------------+ +---------+ + | Prescaler +-> | Counter | +-> | Master | TRGO(2) + +-----------+ +--+--------+-+ |-> | Control +--> + | | || +---------+ + +--v--------+-+ OCxREF || +---------+ + | Chx compare +----------> | Output | ChX + +-----------+-+ | | Control +--> + . | | +---------+ + . | | . + +-----------v-+ OC6REF | . + | Ch6 compare +---------+> + +-------------+ + + Example with: "compare_pulse_OC4REF_r_or_OC6REF_r": + + X + X X + X . . X + X . . X + X . . X + count X . . . . X + . . . . + . . . . + +---------------+ + OC4REF | . . | + +-+ . . +-+ + . +---+ . + OC6REF . | | . + +-------+ +-------+ + +-+ +-+ + TRGO2 | | | | + +-+ +---+ +---------+ What: /sys/bus/iio/devices/triggerX/master_mode KernelVersion: 4.11 |