diff options
| -rw-r--r-- | ports/esp32s2/common-hal/touchio/TouchIn.c | 18 |
1 files changed, 11 insertions, 7 deletions
diff --git a/ports/esp32s2/common-hal/touchio/TouchIn.c b/ports/esp32s2/common-hal/touchio/TouchIn.c index b44234775..4589c46a7 100644 --- a/ports/esp32s2/common-hal/touchio/TouchIn.c +++ b/ports/esp32s2/common-hal/touchio/TouchIn.c @@ -25,10 +25,12 @@ */ #include "shared-bindings/touchio/TouchIn.h" -#include "py/runtime.h" +#include "py/runtime.h" #include "driver/touch_pad.h" +bool touch_inited = false; + static uint16_t get_raw_reading(touchio_touchin_obj_t *self) { uint32_t touch_value; touch_pad_read_raw_data((touch_pad_t)self->pin->touch_channel, &touch_value); @@ -45,11 +47,14 @@ void common_hal_touchio_touchin_construct(touchio_touchin_obj_t* self, } claim_pin(pin); - touch_pad_init(); - touch_pad_config((touch_pad_t)pin->touch_channel); + if (!touch_inited) { + touch_pad_init(); + touch_pad_set_fsm_mode(TOUCH_FSM_MODE_TIMER); + touch_pad_fsm_start(); + touch_inited = true; + } - touch_pad_set_fsm_mode(TOUCH_FSM_MODE_TIMER); - touch_pad_fsm_start(); + touch_pad_config((touch_pad_t)pin->touch_channel); // wait for "raw data" to reset mp_hal_delay_ms(10); @@ -79,8 +84,7 @@ void common_hal_touchio_touchin_deinit(touchio_touchin_obj_t* self) { } bool common_hal_touchio_touchin_get_value(touchio_touchin_obj_t *self) { - uint16_t reading = get_raw_reading(self); - return reading > self->threshold; + return get_raw_reading(self) > self->threshold; } uint16_t common_hal_touchio_touchin_get_raw_value(touchio_touchin_obj_t *self) { |