static void uart_irq_handler(NRF_UART_Type * p_uart, uart_control_block_t * p_cb) { if (nrf_uart_int_enable_check(p_uart, NRF_UART_INT_MASK_ERROR) && nrf_uart_event_check(p_uart, NRF_UART_EVENT_ERROR)) { nrfx_uart_event_t event; nrf_uart_event_clear(p_uart, NRF_UART_EVENT_ERROR); NRFX_LOG_DEBUG("Event: %s.", EVT_TO_STR(NRF_UART_EVENT_ERROR)); nrf_uart_int_disable(p_uart, NRF_UART_INT_MASK_RXDRDY | NRF_UART_INT_MASK_ERROR); if (!p_cb->rx_enabled) { nrf_uart_task_trigger(p_uart, NRF_UART_TASK_STOPRX); } event.type = NRFX_UART_EVT_ERROR; event.data.error.error_mask = nrf_uart_errorsrc_get_and_clear(p_uart); event.data.error.rxtx.bytes = p_cb->rx_buffer_length; event.data.error.rxtx.p_data = p_cb->p_rx_buffer; // Abort transfer. p_cb->rx_buffer_length = 0; p_cb->rx_secondary_buffer_length = 0; p_cb->handler(&event,p_cb->p_context); } else if (nrf_uart_int_enable_check(p_uart, NRF_UART_INT_MASK_RXDRDY) && nrf_uart_event_check(p_uart, NRF_UART_EVENT_RXDRDY)) { rx_byte(p_uart, p_cb); if (p_cb->rx_buffer_length == p_cb->rx_counter) { if (p_cb->rx_secondary_buffer_length) { uint8_t * p_data = p_cb->p_rx_buffer; size_t rx_counter = p_cb->rx_counter; // Switch to secondary buffer. p_cb->rx_buffer_length = p_cb->rx_secondary_buffer_length; p_cb->p_rx_buffer = p_cb->p_rx_secondary_buffer; p_cb->rx_secondary_buffer_length = 0; p_cb->rx_counter = 0; rx_done_event(p_cb, rx_counter, p_data); } else { if (!p_cb->rx_enabled) { nrf_uart_task_trigger(p_uart, NRF_UART_TASK_STOPRX); } nrf_uart_int_disable(p_uart, NRF_UART_INT_MASK_RXDRDY | NRF_UART_INT_MASK_ERROR); p_cb->rx_buffer_length = 0; rx_done_event(p_cb, p_cb->rx_counter, p_cb->p_rx_buffer); } } } if (nrf_uart_event_check(p_uart, NRF_UART_EVENT_TXDRDY)) { if (p_cb->tx_counter < p_cb->tx_buffer_length && !p_cb->tx_abort) { tx_byte(p_uart, p_cb); } else { nrf_uart_event_clear(p_uart, NRF_UART_EVENT_TXDRDY); if (p_cb->tx_buffer_length) { tx_done_event(p_cb, p_cb->tx_buffer_length); } } } if (nrf_uart_event_check(p_uart, NRF_UART_EVENT_RXTO)) { nrf_uart_event_clear(p_uart, NRF_UART_EVENT_RXTO); // RXTO event may be triggered as a result of abort call. In th if (p_cb->rx_enabled) { nrf_uart_task_trigger(p_uart, NRF_UART_TASK_STARTRX); } if (p_cb->rx_buffer_length) { p_cb->rx_buffer_length = 0; rx_done_event(p_cb, p_cb->rx_counter, p_cb->p_rx_buffer); } } }
static void uarte_irq_handler(NRF_UARTE_Type * p_uarte, uarte_control_block_t * p_cb) { if (nrf_uarte_event_check(p_uarte, NRF_UARTE_EVENT_ERROR)) { nrfx_uarte_event_t event; nrf_uarte_event_clear(p_uarte, NRF_UARTE_EVENT_ERROR); event.type = NRFX_UARTE_EVT_ERROR; event.data.error.error_mask = nrf_uarte_errorsrc_get_and_clear(p_uarte); event.data.error.rxtx.bytes = nrf_uarte_rx_amount_get(p_uarte); event.data.error.rxtx.p_data = p_cb->p_rx_buffer; // Abort transfer. p_cb->rx_buffer_length = 0; p_cb->rx_secondary_buffer_length = 0; p_cb->handler(&event, p_cb->p_context); } else if (nrf_uarte_event_check(p_uarte, NRF_UARTE_EVENT_ENDRX)) { nrf_uarte_event_clear(p_uarte, NRF_UARTE_EVENT_ENDRX); size_t amount = nrf_uarte_rx_amount_get(p_uarte); // If the transfer was stopped before completion, amount of transfered bytes // will not be equal to the buffer length. Interrupted transfer is ignored. if (amount == p_cb->rx_buffer_length) { if (p_cb->rx_secondary_buffer_length) { uint8_t * p_data = p_cb->p_rx_buffer; nrf_uarte_shorts_disable(p_uarte, NRF_UARTE_SHORT_ENDRX_STARTRX); p_cb->rx_buffer_length = p_cb->rx_secondary_buffer_length; p_cb->p_rx_buffer = p_cb->p_rx_secondary_buffer; p_cb->rx_secondary_buffer_length = 0; rx_done_event(p_cb, amount, p_data); } else { p_cb->rx_buffer_length = 0; rx_done_event(p_cb, amount, p_cb->p_rx_buffer); } } } if (nrf_uarte_event_check(p_uarte, NRF_UARTE_EVENT_RXTO)) { nrf_uarte_event_clear(p_uarte, NRF_UARTE_EVENT_RXTO); if (p_cb->rx_buffer_length) { p_cb->rx_buffer_length = 0; rx_done_event(p_cb, nrf_uarte_rx_amount_get(p_uarte), p_cb->p_rx_buffer); } } if (nrf_uarte_event_check(p_uarte, NRF_UARTE_EVENT_ENDTX)) { nrf_uarte_event_clear(p_uarte, NRF_UARTE_EVENT_ENDTX); if (p_cb->tx_buffer_length) { tx_done_event(p_cb, nrf_uarte_tx_amount_get(p_uarte)); } } }