diff options
Diffstat (limited to 'stm/usrsw.c')
| -rw-r--r-- | stm/usrsw.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/stm/usrsw.c b/stm/usrsw.c index 53c6a1470b..98db562e63 100644 --- a/stm/usrsw.c +++ b/stm/usrsw.c @@ -19,24 +19,25 @@ // // pyb.switch(callback) will register a callback to be called when the user // switch is pressed. +// // pyb.switch(None) will remove the callback. // // Example: // -// def callback(): +// def switch_pressed(): // print("User Switch pressed") // -// pyb.switch(callback) +// pyb.switch(switch_pressed) static mp_obj_t switch_user_callback_obj; -static mp_obj_t switch_callback(mp_obj_t line, mp_obj_t param) { +static mp_obj_t switch_callback(mp_obj_t line) { if (switch_user_callback_obj != mp_const_none) { rt_call_function_0(switch_user_callback_obj); } return mp_const_none; } -static MP_DEFINE_CONST_FUN_OBJ_2(switch_callback_obj, switch_callback); +static MP_DEFINE_CONST_FUN_OBJ_1(switch_callback_obj, switch_callback); void switch_init(void) { switch_user_callback_obj = mp_const_none; @@ -44,7 +45,7 @@ void switch_init(void) { MP_OBJ_NEW_SMALL_INT(EXTI_Mode_Interrupt), MP_OBJ_NEW_SMALL_INT(USRSW_EXTI_EDGE), (mp_obj_t)&switch_callback_obj, - mp_const_none); + NULL); pyb_gpio_input((mp_obj_t)&USRSW_PIN, MP_OBJ_NEW_SMALL_INT(USRSW_PUPD)); } |