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Update Counter.c

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Add a comment as to why the countio object needs to be long-lived.
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DavePutz 2022-03-02 12:21:13 -06:00 committed by GitHub
parent 1ef8aacd73
commit 4ac28587ef
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shared-bindings/countio/Counter.c
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@ -52,7 +52,7 @@ STATIC mp_obj_t countio_counter_make_new(const mp_obj_type_t *type, size_t n_arg
const mcu_pin_obj_t *pin = validate_obj_is_free_pin(args[ARG_pin].u_obj);
const countio_edge_t edge = validate_edge(args[ARG_edge].u_obj, MP_QSTR_edge);
const digitalio_pull_t pull = validate_pull(args[ARG_pull].u_obj, MP_QSTR_pull);
// Make long-lived because some implementations use a pointer to the object as interrupt-handler data.
countio_counter_obj_t *self = m_new_ll_obj(countio_counter_obj_t);
self->base.type = &countio_counter_type;