diff options
| -rw-r--r-- | ports/esp32/esp32_rmt.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/ports/esp32/esp32_rmt.c b/ports/esp32/esp32_rmt.c index 9619b1dd5..8c8f0f2e0 100644 --- a/ports/esp32/esp32_rmt.c +++ b/ports/esp32/esp32_rmt.c @@ -218,6 +218,10 @@ STATIC mp_obj_t esp32_rmt_write_pulses(size_t n_args, const mp_obj_t *pos_args, mp_obj_get_array(pulses, &pulses_length, &pulses_ptr); mp_uint_t num_items = (pulses_length / 2) + (pulses_length % 2); + if (self->loop_en && num_items > 63) { + mp_raise_ValueError(MP_ERROR_TEXT("too many pulses for loop")); + } + if (num_items > self->num_items) { self->items = (rmt_item32_t *)m_realloc(self->items, num_items * sizeof(rmt_item32_t *)); self->num_items = num_items; @@ -241,12 +245,12 @@ STATIC mp_obj_t esp32_rmt_write_pulses(size_t n_args, const mp_obj_t *pos_args, check_esp_err(rmt_set_tx_loop_mode(self->channel_id, false)); } check_esp_err(rmt_wait_tx_done(self->channel_id, portMAX_DELAY)); - check_esp_err(rmt_set_tx_intr_en(self->channel_id, false)); } check_esp_err(rmt_write_items(self->channel_id, self->items, num_items, false /* non-blocking */)); if (self->loop_en) { + check_esp_err(rmt_set_tx_intr_en(self->channel_id, false)); check_esp_err(rmt_set_tx_loop_mode(self->channel_id, true)); } |