// Configures RF parameters before Enhanced Shockburst can be used.
void configureRF()
{
packet_received = false;
send_success = false;
// Enable the radio clock
RFCKEN = 1;
// Set payload width to 32 bytes
hal_nrf_set_rx_payload_width((int)HAL_NRF_PIPE0, PAYLOAD_SIZE);
// Set auto-retries to 5 with 500 us intervals
hal_nrf_set_auto_retr(5, 500);
// Set pipe address
hal_nrf_set_address(HAL_NRF_PIPE0, default_pipe_address);
hal_nrf_set_address(HAL_NRF_TX, default_pipe_address);
// Set initial channel
hal_nrf_set_rf_channel(default_channels[1]);
// Configure radio as primary receiver (PTX)
hal_nrf_set_operation_mode(HAL_NRF_PRX);
// Wait for the xtal to power up
while (hal_clk_get_16m_source() != HAL_CLK_XOSC16M) ;
// Power up radio
hal_nrf_set_power_mode(HAL_NRF_PWR_UP);
// Enable receiver
CE_HIGH();
return;
}
/** Initialized the RF configurations and powre up the RF.
* Use this function to initialize RF configurations.
* Note that the pipe isn't opened in this function,
* please use "rf_rcv_pipe_config" after using this
* function to configure RX pipe.
*
* @param in_channel RF Frequency (in_channel + 2400MHz)
* @param in_datarate Data rate of the RF transmission. (1Mbps or 2Mbps)
* @param in_output_power RF output power configuration.
* @param in_auto_retr Enable auto retransmission or not.
* @param in_auto_retr_delay Auto retransmission delay.
* @param in_addr_width Address width configuration for both PTX and PRX pipe.
* @param in_crc_mode CRC enable or disable configuration.
* @param in_spi_clk_rate SPI clock rate. (SPI speed)
* @param in_rf_int RF interrupt enable bit.
*/
void epl_rf_en_init(unsigned char in_channel, epl_rf_en_datarate_t in_datarate, char in_output_power, unsigned char in_auto_retr, unsigned int in_auto_retr_delay, char in_addr_width, epl_rf_en_crc_mode_t in_crc_mode, unsigned char in_rf_int)
{
RFCKEN = 1; // RF clock enable.
CE_LOW();
//--- Default static setup. These setting is optimized to match the RF protocol with nRF24E1. ---//
hal_nrf_close_pipe(HAL_NRF_ALL); // Close all pipes first. By default, pipe0 and pipe1 are opened.
hal_nrf_set_datarate(in_datarate);
hal_nrf_set_auto_retr(in_auto_retr, in_auto_retr_delay); // First parameter is set to zero indicating the auto retransmission is off.
hal_nrf_set_output_power(in_output_power); // Maximum radio output power (0dbm).
hal_nrf_set_crc_mode(in_crc_mode);
hal_nrf_set_address_width(in_addr_width); // Both RX and TX's address width are Configured.
hal_nrf_set_operation_mode(HAL_NRF_PTX); // Enter RF TX mode
hal_nrf_set_rf_channel(in_channel);
hal_nrf_set_power_mode(HAL_NRF_PWR_UP); // Power up radio
hal_nrf_get_clear_irq_flags();
// IEN1 RF interrupt enable bit
RF = in_rf_int;
}
void radio_sb_init( hal_nrf_operation_mode_t operational_mode )
{
if( !bus_initialized )
radio_bus_init();
switch( operational_mode )
{
case HAL_NRF_PRX:
radio_mode = DEVICE_PRX_SB;
break;
case HAL_NRF_PTX:
radio_mode = DEVICE_PTX_SB;
break;
}
hal_nrf_close_pipe(HAL_NRF_ALL); // First close all radio pipes
// Pipe 0 and 1 open by default
hal_nrf_open_pipe(HAL_NRF_PIPE0, false); // Open pipe0, without/autoack
hal_nrf_set_crc_mode(HAL_NRF_CRC_16BIT); // Operates in 16bits CRC mode
hal_nrf_set_auto_retr(0, RF_RETRANS_DELAY); // Disables auto retransmit
hal_nrf_set_address_width(HAL_NRF_AW_5BYTES); // 5 bytes address width
hal_nrf_set_address(HAL_NRF_TX, address); // Set device's addresses
hal_nrf_set_address(HAL_NRF_PIPE0, address); // Sets recieving address on
// pipe0
if(operational_mode == HAL_NRF_PTX) // Mode depentant settings
{
hal_nrf_set_operation_mode(HAL_NRF_PTX); // Enter TX mode
}
else
{
hal_nrf_set_operation_mode(HAL_NRF_PRX); // Enter RX mode
hal_nrf_set_rx_pload_width((uint8_t)HAL_NRF_PIPE0, RF_PAYLOAD_LENGTH);
// Pipe0 expect
// PAYLOAD_LENGTH byte payload
// PAYLOAD_LENGTH in radio.h
}
hal_nrf_set_rf_channel(RF_CHANNEL); // Operating on static channel
// Defined in radio.h.
// Frequenzy =
// 2400 + RF_CHANNEL
hal_nrf_set_power_mode(HAL_NRF_PWR_UP); // Power up device
//hal_nrf_set_datarate(HAL_NRF_1MBPS); // Uncomment this line for
// compatibility with nRF2401
// and nRF24E1
radio_wait();
radio_set_status (RF_IDLE); // Radio now ready
}
void radio_esb_init( hal_nrf_operation_mode_t operational_mode )
{
if( !bus_initialized )
radio_bus_init();
switch( operational_mode )
{
case HAL_NRF_PRX:
radio_mode = DEVICE_PRX_ESB;
break;
case HAL_NRF_PTX:
radio_mode = DEVICE_PTX_ESB;
break;
}
hal_nrf_close_pipe( HAL_NRF_ALL ); // First close all radio pipes
// Pipe 0 and 1 open by default
hal_nrf_open_pipe( HAL_NRF_PIPE0, true ); // Then open pipe0, w/autoack
// Changed from sb/radio_sb.c
hal_nrf_set_crc_mode( HAL_NRF_CRC_16BIT ); // Operates in 16bits CRC mode
hal_nrf_set_auto_retr( RF_RETRANSMITS, RF_RETRANS_DELAY );
// Enables auto retransmit.
// 3 retrans with 250ms delay
// Changed from sb/radio_sb.c
hal_nrf_set_address_width( HAL_NRF_AW_5BYTES ); // 5 bytes address width
hal_nrf_set_address( HAL_NRF_TX, address ); // Set device's addresses
hal_nrf_set_address( HAL_NRF_PIPE0, address ); // Sets recieving address on
// pipe0
if( operational_mode == HAL_NRF_PTX ) // Mode depentant settings
{
hal_nrf_set_operation_mode( HAL_NRF_PTX ); // Enter TX mode
}
else
{
hal_nrf_set_operation_mode( HAL_NRF_PRX ); // Enter RX mode
hal_nrf_set_rx_pload_width( (uint8_t)HAL_NRF_PIPE0, RF_PAYLOAD_LENGTH );
// Pipe0 expect
// PAYLOAD_LENGTH byte payload
// PAYLOAD_LENGTH in radio.h
}
hal_nrf_set_rf_channel( RF_CHANNEL ); // Operating on static channel
// Defined in radio.h.
// Frequenzy =
// 2400 + RF_CHANNEL
hal_nrf_set_power_mode( HAL_NRF_PWR_UP ); // Power up device
radio_wait();
radio_set_status( RF_IDLE ); // Radio now ready
}
void radio_sb_init (const uint8_t *address, hal_nrf_operation_mode_t operational_mode)
{
hal_nrf_close_pipe(HAL_NRF_ALL); // First close all radio pipes
// Pipe 0 and 1 open by default
hal_nrf_open_pipe(HAL_NRF_PIPE0, FALSE); // Open pipe0, without/autoack
hal_nrf_set_crc_mode(HAL_NRF_CRC_16BIT); // Operates in 16bits CRC mode
hal_nrf_set_auto_retr(0, RF_RETRANS_DELAY); // Disables auto retransmit
hal_nrf_set_address_width(HAL_NRF_AW_5BYTES); // 5 bytes address width
hal_nrf_set_address(HAL_NRF_TX, address); // Set device's addresses
hal_nrf_set_address(HAL_NRF_PIPE0, address); // Sets recieving address on
// pipe0
if(operational_mode == HAL_NRF_PTX) // Mode depentant settings
{
hal_nrf_set_operation_mode(HAL_NRF_PTX); // Enter TX mode
}
else
{
hal_nrf_set_operation_mode(HAL_NRF_PRX); // Enter RX mode
hal_nrf_set_rx_pload_width((uint8_t)HAL_NRF_PIPE0, RF_PAYLOAD_LENGTH);
// Pipe0 expect
// PAYLOAD_LENGTH byte payload
// PAYLOAD_LENGTH in radio.h
}
hal_nrf_set_rf_channel(RF_CHANNEL); // Operating on static channel
// Defined in radio.h.
// Frequenzy =
// 2400 + RF_CHANNEL
hal_nrf_set_power_mode(HAL_NRF_PWR_UP); // Power up device
hal_nrf_set_datarate(HAL_NRF_250KBPS); // Uncomment this line for
// compatibility with nRF2401
// and nRF24E1
//hal_nrf_set_output_power(hal_nrf_output_power_t power); //default reset value is 0dbm
// Wait for the radio to power up, max. 4.5ms depending on crystal Ls
Timeout_SetTimeout2(5);
while(!Timeout_IsTimeout2());
radio_set_status (RF_IDLE); // Radio now ready
}
void init_radio()
{
// Enable the radio clock
RFCKEN = 1;
// Enable RF interrupt
RF = 1;
// Power up radio
hal_nrf_set_power_mode(HAL_NRF_PWR_UP);
hal_nrf_set_output_power(HAL_NRF_0DBM);
hal_nrf_enable_ack_payload(1);
hal_nrf_enable_dynamic_payload(1);
hal_nrf_setup_dynamic_payload(1); // Set up PIPE 0 to handle dynamic lengths
hal_nrf_set_rf_channel(125); // 2525 MHz
hal_nrf_set_auto_retr(5, 250); // Retry 5x
// Configure radio as primary receiver (PTX)
hal_nrf_set_operation_mode(HAL_NRF_PTX);
// Set payload width to 32 bytes
// hal_nrf_set_rx_payload_width(HAL_NRF_PIPE0, MAXLENGTH);
// Enable global interrupt
EA = 1;
}
// Resets RF parameters to default values.
// Must be called before jumping to new firmware.
void resetRF()
{
// Reset values set by the RF setup.
CE_LOW();
// PWR_UP = 0
hal_nrf_set_power_mode(HAL_NRF_PWR_DOWN);
// PRIM_RX = 0
hal_nrf_set_operation_mode(HAL_NRF_PTX);
// RF_CH = 0x02;
hal_nrf_set_rf_channel(reset_channel);
// AW = 11 (Default = 5 bytes)
// RX_ADDR_P0 = TX_ADDR = 0xE7E7E7E7E7
hal_nrf_set_address(HAL_NRF_TX, reset_pipe_address);
hal_nrf_set_address(HAL_NRF_PIPE0, reset_pipe_address);
// ARD = 0000, ARC = 0011
hal_nrf_set_auto_retr(3, 250);
// RX_PW_P0 = 0x00
hal_nrf_set_rx_payload_width((int)HAL_NRF_PIPE0, 0);
// Disable radio clock
RFCKEN = 0;
return;
}
void radio_pl_init (const uint8_t *address, hal_nrf_operation_mode_t operational_mode)
{
hal_nrf_close_pipe(HAL_NRF_ALL); // First close all radio pipes
// Pipe 0 and 1 open by default
hal_nrf_open_pipe(HAL_NRF_PIPE0, true); // Then open pipe0, w/autoack
hal_nrf_set_crc_mode(HAL_NRF_CRC_16BIT); // Operates in 16bits CRC mode
hal_nrf_set_auto_retr(RF_RETRANSMITS, RF_RETRANS_DELAY);
// Enables auto retransmit.
// 3 retrans with 250ms delay
hal_nrf_set_address_width(HAL_NRF_AW_5BYTES); // 5 bytes address width
hal_nrf_set_address(HAL_NRF_TX, address); // Set device's addresses
hal_nrf_set_address(HAL_NRF_PIPE0, address); // Sets recieving address on
// pipe0
/*****************************************************************************
* Changed from esb/radio_esb.c *
* Enables: *
* - ACK payload *
* - Dynamic payload width *
* - Dynamic ACK *
*****************************************************************************/
hal_nrf_enable_ack_pl(); // Try to enable ack payload
// When the features are locked, the FEATURE and DYNPD are read out 0x00
// even after we have tried to enable ack payload. This mean that we need to
// activate the features.
if(hal_nrf_read_reg(FEATURE) == 0x00 && (hal_nrf_read_reg(DYNPD) == 0x00))
{
hal_nrf_lock_unlock (); // Activate features
hal_nrf_enable_ack_pl(); // Enables payload in ack
}
hal_nrf_enable_dynamic_pl(); // Enables dynamic payload
hal_nrf_setup_dyn_pl(ALL_PIPES); // Sets up dynamic payload on
// all data pipes.
/*****************************************************************************
* End changes from esb/radio_esb.c *
*****************************************************************************/
if(operational_mode == HAL_NRF_PTX) // Mode depentant settings
{
hal_nrf_set_operation_mode(HAL_NRF_PTX); // Enter TX mode
}
else
{
hal_nrf_set_operation_mode(HAL_NRF_PRX); // Enter RX mode
hal_nrf_set_rx_pload_width((uint8_t)HAL_NRF_PIPE0, RF_PAYLOAD_LENGTH);
// Pipe0 expect
// PAYLOAD_LENGTH byte payload
// PAYLOAD_LENGTH in radio.h
}
hal_nrf_set_rf_channel(RF_CHANNEL); // Operating on static channel
// Defined in radio.h.
// Frequenzy =
// 2400 + RF_CHANNEL
hal_nrf_set_power_mode(HAL_NRF_PWR_UP); // Power up device
start_timer(RF_POWER_UP_DELAY); // Wait for the radio to
wait_for_timer(); // power up
radio_set_status (RF_IDLE); // Radio now ready
}
