uint32_t app_uart_init(const app_uart_comm_params_t * p_comm_params,
app_uart_buffers_t * p_buffers,
app_uart_event_handler_t event_handler,
app_irq_priority_t irq_priority)
{
nrf_drv_uart_config_t config = NRF_DRV_UART_DEFAULT_CONFIG;
config.baudrate = (nrf_uart_baudrate_t)p_comm_params->baud_rate;
config.hwfc = (p_comm_params->flow_control == APP_UART_FLOW_CONTROL_DISABLED) ?
NRF_UART_HWFC_DISABLED : NRF_UART_HWFC_ENABLED;
config.interrupt_priority = irq_priority;
config.parity = p_comm_params->use_parity ? NRF_UART_PARITY_INCLUDED : NRF_UART_PARITY_EXCLUDED;
config.pselcts = p_comm_params->cts_pin_no;
config.pselrts = p_comm_params->rts_pin_no;
config.pselrxd = p_comm_params->rx_pin_no;
config.pseltxd = p_comm_params->tx_pin_no;
m_event_handler = event_handler;
rx_done = false;
if (p_comm_params->flow_control == APP_UART_FLOW_CONTROL_LOW_POWER)
{
return NRF_ERROR_NOT_SUPPORTED;
}
uint32_t err_code = nrf_drv_uart_init(&config, uart_event_handler);
if (err_code != NRF_SUCCESS)
{
return err_code;
}
nrf_drv_uart_rx_enable();
return nrf_drv_uart_rx(rx_buffer,1);
}
/**@brief Function for UART initialization.
*/
static uint32_t uart_init(app_uart_stream_comm_params_t * p_comm_params)
{
if (p_comm_params->baud_rate > UART_BAUD_RATE_115200)
{
return NRF_ERROR_INVALID_PARAM;
}
nrf_drv_uart_config_t config = NRF_DRV_UART_DEFAULT_CONFIG;
config.pselrxd = p_comm_params->rx_pin_no;
config.pseltxd = p_comm_params->tx_pin_no;
config.baudrate = (nrf_uart_baudrate_t) m_baud_rates[p_comm_params->baud_rate];
config.hwfc = NRF_UART_HWFC_DISABLED;
config.parity = NRF_UART_PARITY_EXCLUDED;
nrf_drv_uart_uninit();
uint32_t err_code = nrf_drv_uart_init(&config, NULL);
if (err_code != NRF_SUCCESS)
{
return err_code;
}
nrf_drv_uart_rx_enable();
m_iterations_next_byte_max = m_iteration[p_comm_params->baud_rate];
return NRF_SUCCESS;
}
uint32_t app_uart_init(const app_uart_comm_params_t * p_comm_params,
app_uart_buffers_t * p_buffers,
app_uart_event_handler_t event_handler,
app_irq_priority_t irq_priority)
{
uint32_t err_code;
m_event_handler = event_handler;
if (p_buffers == NULL)
{
return NRF_ERROR_INVALID_PARAM;
}
// Configure buffer RX buffer.
err_code = app_fifo_init(&m_rx_fifo, p_buffers->rx_buf, p_buffers->rx_buf_size);
VERIFY_SUCCESS(err_code);
// Configure buffer TX buffer.
err_code = app_fifo_init(&m_tx_fifo, p_buffers->tx_buf, p_buffers->tx_buf_size);
VERIFY_SUCCESS(err_code);
nrf_drv_uart_config_t config = NRF_DRV_UART_DEFAULT_CONFIG;
config.baudrate = (nrf_uart_baudrate_t)p_comm_params->baud_rate;
config.hwfc = (p_comm_params->flow_control == APP_UART_FLOW_CONTROL_DISABLED) ?
NRF_UART_HWFC_DISABLED : NRF_UART_HWFC_ENABLED;
config.interrupt_priority = irq_priority;
config.parity = p_comm_params->use_parity ? NRF_UART_PARITY_INCLUDED : NRF_UART_PARITY_EXCLUDED;
config.pselcts = p_comm_params->cts_pin_no;
config.pselrts = p_comm_params->rts_pin_no;
config.pselrxd = p_comm_params->rx_pin_no;
config.pseltxd = p_comm_params->tx_pin_no;
err_code = nrf_drv_uart_init(&app_uart_inst, &config, uart_event_handler);
VERIFY_SUCCESS(err_code);
m_rx_ovf = false;
// Turn on receiver if RX pin is connected
if (p_comm_params->rx_pin_no != UART_PIN_DISCONNECTED)
{
#ifdef UARTE_PRESENT
if (!config.use_easy_dma)
#endif
{
nrf_drv_uart_rx_enable(&app_uart_inst);
}
return nrf_drv_uart_rx(&app_uart_inst, rx_buffer,1);
}
else
{
return NRF_SUCCESS;
}
}
/**
* Initialize the RS232 port.
*
*/
void
uart0_init(unsigned long ubr)
{
nrf_drv_uart_config_t config = NRF_DRV_UART_DEFAULT_CONFIG;
ret_code_t retcode = nrf_drv_uart_init(&config, uart_event_handler);
APP_ERROR_CHECK(retcode);
ringbuf_init(&txbuf, txbuf_data, sizeof(txbuf_data));
nrf_drv_uart_rx_enable();
nrf_drv_uart_rx(rx_buffer, 1);
}
uint32_t app_uart_init(const app_uart_comm_params_t * p_comm_params,
app_uart_buffers_t * p_buffers,
app_uart_event_handler_t event_handler,
app_irq_priority_t irq_priority)
{
uint32_t err_code;
m_event_handler = event_handler;
if (p_buffers == NULL)
{
return NRF_ERROR_INVALID_PARAM;
}
// Configure buffer RX buffer.
err_code = app_fifo_init(&m_rx_fifo, p_buffers->rx_buf, p_buffers->rx_buf_size);
if (err_code != NRF_SUCCESS)
{
// Propagate error code.
return err_code;
}
// Configure buffer TX buffer.
err_code = app_fifo_init(&m_tx_fifo, p_buffers->tx_buf, p_buffers->tx_buf_size);
if (err_code != NRF_SUCCESS)
{
// Propagate error code.
return err_code;
}
nrf_drv_uart_config_t config = NRF_DRV_UART_DEFAULT_CONFIG;
config.baudrate = (nrf_uart_baudrate_t)p_comm_params->baud_rate;
config.hwfc = (p_comm_params->flow_control == APP_UART_FLOW_CONTROL_DISABLED) ?
NRF_UART_HWFC_DISABLED : NRF_UART_HWFC_ENABLED;
config.interrupt_priority = irq_priority;
config.parity = p_comm_params->use_parity ? NRF_UART_PARITY_INCLUDED : NRF_UART_PARITY_EXCLUDED;
config.pselcts = p_comm_params->cts_pin_no;
config.pselrts = p_comm_params->rts_pin_no;
config.pselrxd = p_comm_params->rx_pin_no;
config.pseltxd = p_comm_params->tx_pin_no;
err_code = nrf_drv_uart_init(&config, uart_event_handler);
if (err_code != NRF_SUCCESS)
{
return err_code;
}
nrf_drv_uart_rx_enable();
return nrf_drv_uart_rx(rx_buffer,1);
}
uint32_t serial_dfu_transport_init(void)
{
uint32_t err_code;
leds_init();
m_dfu.slip.p_buffer = m_dfu.recv_buffer;
m_dfu.slip.current_index = 0;
m_dfu.slip.buffer_len = sizeof(m_dfu.recv_buffer);
m_dfu.slip.state = SLIP_STATE_DECODING;
nrf_drv_uart_config_t uart_config = NRF_DRV_UART_DEFAULT_CONFIG;
uart_config.pseltxd = TX_PIN_NUMBER;
uart_config.pselrxd = RX_PIN_NUMBER;
uart_config.pselcts = CTS_PIN_NUMBER;
uart_config.pselrts = RTS_PIN_NUMBER;
uart_config.hwfc = NRF_UART_HWFC_ENABLED;
uart_config.p_context = &m_dfu;
nrf_drv_uart_t instance = NRF_DRV_UART_INSTANCE(0);
memcpy(&m_dfu.uart_instance, &instance, sizeof(instance));
err_code = nrf_drv_uart_init(&m_dfu.uart_instance,
&uart_config,
uart_event_handler);
if (err_code != NRF_SUCCESS)
{
NRF_LOG_ERROR("Failed initializing uart\n");
return err_code;
}
nrf_drv_uart_rx_enable(&m_dfu.uart_instance);
err_code = nrf_drv_uart_rx(&m_dfu.uart_instance, &m_dfu.uart_buffer, 1);
if (err_code != NRF_SUCCESS)
{
NRF_LOG_ERROR("Failed initializing rx\n");
}
NRF_LOG_DEBUG("UART initialized\n");
return err_code;
}
