// 0 = success
// 1 = init failed
// 2 = set tx_power failed
// 3 = enabled failed
int RFduinoGZLL_begin(device_t device)
{
_device = device;
if (! nrf_gzll_init(device == HOST ? NRF_GZLL_MODE_HOST : NRF_GZLL_MODE_DEVICE))
return 1;
nrf_gzll_tx_power_t tx_power;
if (RFduinoGZLL_tx_power_level <= -20)
tx_power = NRF_GZLL_TX_POWER_N20_DBM;
else if (RFduinoGZLL_tx_power_level <= -16)
tx_power = NRF_GZLL_TX_POWER_N16_DBM;
else if (RFduinoGZLL_tx_power_level <= -12)
tx_power = NRF_GZLL_TX_POWER_N12_DBM;
else if (RFduinoGZLL_tx_power_level <= -16)
tx_power = NRF_GZLL_TX_POWER_N16_DBM;
else if (RFduinoGZLL_tx_power_level <= -8)
tx_power = NRF_GZLL_TX_POWER_N8_DBM;
else if (RFduinoGZLL_tx_power_level <= -4)
tx_power = NRF_GZLL_TX_POWER_N4_DBM;
else if (RFduinoGZLL_tx_power_level <= 0)
tx_power = NRF_GZLL_TX_POWER_0_DBM;
else
tx_power = NRF_GZLL_TX_POWER_4_DBM;
if (! nrf_gzll_set_tx_power(tx_power))
return 2;
if (! nrf_gzll_enable())
return 3;
return 0;
}
/**@brief Start Gazell functionality.
*/
void gzll_app_start(void)
{
bool gzll_call_ok;
gzll_call_ok = nrf_gzll_init(NRF_GZLL_MODE_DEVICE);
if (!gzll_call_ok)
{
GET_GAZELL_ERROR();
}
gzll_call_ok = nrf_gzll_set_max_tx_attempts(MAX_TX_ATTEMPTS);
if (!gzll_call_ok)
{
GET_GAZELL_ERROR();
}
gzll_call_ok = nrf_gzll_enable();
if (!gzll_call_ok)
{
GET_GAZELL_ERROR();
}
// Add a packet to the TX FIFO to start the data transfer.
// From here on more data will be added through the Gazell callbacks
gzll_packet[0] = DUMMY_PACKET;
gzll_call_ok = nrf_gzll_add_packet_to_tx_fifo(0, gzll_packet, PAYLOAD_SIZE);
if (!gzll_call_ok)
{
GET_GAZELL_ERROR();
}
}
// 0 = success
// 1 = init failed
// 2 = set tx_power failed
// 3 = enabled failed
// 4 = set channel selection policy failed
int RFduinoGZLL_begin(device_t device)
{
_device = device;
if (! nrf_gzll_init(device == HOST ? NRF_GZLL_MODE_HOST : NRF_GZLL_MODE_DEVICE))
return 1;
nrf_gzll_tx_power_t tx_power;
if (RFduinoGZLL_tx_power_level <= -20)
tx_power = NRF_GZLL_TX_POWER_N20_DBM;
else if (RFduinoGZLL_tx_power_level <= -16)
tx_power = NRF_GZLL_TX_POWER_N16_DBM;
else if (RFduinoGZLL_tx_power_level <= -12)
tx_power = NRF_GZLL_TX_POWER_N12_DBM;
else if (RFduinoGZLL_tx_power_level <= -16)
tx_power = NRF_GZLL_TX_POWER_N16_DBM;
else if (RFduinoGZLL_tx_power_level <= -8)
tx_power = NRF_GZLL_TX_POWER_N8_DBM;
else if (RFduinoGZLL_tx_power_level <= -4)
tx_power = NRF_GZLL_TX_POWER_N4_DBM;
else if (RFduinoGZLL_tx_power_level <= 0)
tx_power = NRF_GZLL_TX_POWER_0_DBM;
else
tx_power = NRF_GZLL_TX_POWER_4_DBM;
if (! nrf_gzll_set_tx_power(tx_power))
return 2;
if (! nrf_gzll_set_device_channel_selection_policy(NRF_GZLL_DEVICE_CHANNEL_SELECTION_POLICY_USE_CURRENT))
return 4;
if (RFduinoGZLL_host_base_address ) {
uint8_t msb = RFduinoGZLL_host_base_address >> 24;
if (msb == 0x55 || msb == 0xAA)
return 5; // msb of base address should not be alternating 0s and 1s
if ( !nrf_gzll_set_base_address_0(RFduinoGZLL_host_base_address) )
return 5;
}
if (RFduinoGZLL_device_base_address) {
uint8_t msb = RFduinoGZLL_device_base_address >> 24;
if (msb == 0x55 || msb == 0xAA)
return 6; // msb of base address should not be alternating 0s and 1s
if ( !nrf_gzll_set_base_address_1(RFduinoGZLL_device_base_address) )
return 6;
}
if (! nrf_gzll_enable())
return 3;
RFduinoGZLL_enabled = 1;
return 0;
}
void gzll_rx_start(void)
{
if(nrf_gzll_get_mode() != NRF_GZLL_MODE_HOST)
{
gzll_goto_idle();
(void)nrf_gzll_set_mode(NRF_GZLL_MODE_HOST);
}
if(!nrf_gzll_is_enabled())
{
(void)nrf_gzll_enable();
}
}
int main(void)
{
// Debug helper variables
uint32_t length;
// Data and acknowledgement payloads
uint8_t payload[NRF_GZLL_CONST_MAX_PAYLOAD_LENGTH]; ///< Payload to send to Host.
// Setup user interface (buttons and LEDs)
ui_init();
// Initialize Gazell Link Layer
(void)nrf_gzll_init(NRF_GZLL_MODE_HOST);
(void)nrf_gzll_set_timeslot_period(NRF_GZLLDE_RXPERIOD_DIV_2); // Half RX period on nRF24Lxx device
// Initialize Gazell Pairing Library
gzp_init();
(void)nrf_gzll_set_rx_pipes_enabled(nrf_gzll_get_rx_pipes_enabled() | (1 << UNENCRYPTED_DATA_PIPE));
gzp_pairing_enable(true);
(void)nrf_gzll_enable();
for(;;)
{
gzp_host_execute();
// If Host ID request received
if(gzp_id_req_received())
{
// Always grant request
gzp_id_req_grant();
}
length = NRF_GZLL_CONST_MAX_PAYLOAD_LENGTH;
if( nrf_gzll_get_rx_fifo_packet_count(UNENCRYPTED_DATA_PIPE) )
{
if(nrf_gzll_fetch_packet_from_rx_fifo(UNENCRYPTED_DATA_PIPE, payload, &length))
{
output_present(payload[0]);
}
}
else if (gzp_crypt_user_data_received())
{
if(gzp_crypt_user_data_read(payload, (uint8_t*)&length))
{
output_present(payload[0]);
}
}
}
}
bool gzp_update_radio_params(const uint8_t* system_address)
{
uint8_t i;
uint8_t channels[NRF_GZLL_CONST_MAX_CHANNEL_TABLE_SIZE];
uint32_t channel_table_size;
uint32_t pairing_base_address_32, system_address_32;
bool update_ok = true;
bool gzll_enabled_state;
gzll_enabled_state = nrf_gzll_is_enabled();
// Configure "global" pairing address
pairing_base_address_32 = (pairing_base_address[0]) +
((uint32_t)pairing_base_address[1] << 8) +
((uint32_t)pairing_base_address[2] << 16) +
((uint32_t)pairing_base_address[3] << 24) ;
if(system_address != NULL)
{
system_address_32 = (system_address[0]) +
((uint32_t)system_address[1] << 8) +
((uint32_t)system_address[2] << 16) +
((uint32_t)system_address[3] << 24) ;
}
else
{
return false;
}
nrf_gzp_disable_gzll();
update_ok = update_ok && nrf_gzll_set_base_address_0(pairing_base_address_32);
update_ok = update_ok && nrf_gzll_set_address_prefix_byte(GZP_PAIRING_PIPE, pairing_address_prefix_byte);
update_ok = update_ok && nrf_gzll_set_base_address_1(system_address_32);
// Configure address for pipe 1 - 5. Address byte set to equal pipe number.
for(i = 1; i < NRF_GZLL_CONST_PIPE_COUNT; i++)
{
update_ok = update_ok && nrf_gzll_set_address_prefix_byte(i,i);
}
channel_table_size = nrf_gzll_get_channel_table_size();
gzp_generate_channels(&channels[0], system_address, channel_table_size);
// Write generated channel subset to Gazell Link Layer
update_ok = update_ok && nrf_gzll_set_channel_table(&channels[0], channel_table_size);
if(gzll_enabled_state)
{
update_ok = update_ok && nrf_gzll_enable();
}
return update_ok;
}
int main()
{
uint8_t debug_led_output;
// Setup user interface (buttons and LEDs)
ui_init();
// Initialize Gazell
init_ok = nrf_gzll_init(NRF_GZLL_MODE_DEVICE);
// Attempt sending every packet up to 100 times
init_ok &= nrf_gzll_set_max_tx_attempts(100);
// Load data into TX queue
data_payload[0] = input_get();
push_ok = nrf_gzll_add_packet_to_tx_fifo(PIPE_NUMBER, data_payload, TX_PAYLOAD_LENGTH);
// Enable Gazell to start sending over the air
enable_ok = nrf_gzll_enable();
while(1)
{
// Error handling
debug_led_output = ((uint8_t)tx_success << 4) | ((uint8_t)pop_ok << 3) | ((uint8_t)push_ok << 2) | ((uint8_t)enable_ok << 1) | (uint8_t)init_ok;
// If an error has occured
if(debug_led_output != 0x1F)
{
output_present(0xFF);
nrf_delay_us(1000000); // 1 second delay
output_present(0xFF);
nrf_delay_us(1000000); // 1 second delay
output_present(0xFF);
//nrf_gzll_get_error_code());
nrf_delay_us(1000000); // 1 second delay
}
// Optionally send the CPU to sleep while waiting for a callback.
// __WFI();
}
}
int main()
{
uint8_t debug_led_output;
// Setup port directions
nrf_gpio_port_dir_set(BUTTONS, NRF_GPIO_PORT_DIR_INPUT);
nrf_gpio_port_dir_set(LEDS, NRF_GPIO_PORT_DIR_OUTPUT);
// Initialize Gazell
init_ok = nrf_gzll_init(NRF_GZLL_MODE_DEVICE);
// Attempt sending every packet up to 100 times
init_ok &= nrf_gzll_set_max_tx_attempts(100);
// Load data into TX queue
data_payload[0] = nrf_gpio_port_read(BUTTONS);
push_ok = nrf_gzll_add_packet_to_tx_fifo(PIPE_NUMBER, data_payload, TX_PAYLOAD_LENGTH);
// Enable Gazell to start sending over the air
enable_ok = nrf_gzll_enable();
while(1)
{
// Error handling
debug_led_output = ((uint8_t)tx_success << 4) | ((uint8_t)pop_ok << 3) | ((uint8_t)push_ok << 2) | ((uint8_t)enable_ok << 1) | (uint8_t)init_ok;
// If an error has occured
if(debug_led_output != 0x1F)
{
nrf_gpio_port_write(LEDS,0xFF);
nrf_delay_us(1000000); // 1 second delay
nrf_gpio_port_write(LEDS, debug_led_output);
nrf_delay_us(1000000); // 1 second delay
nrf_gpio_port_write(LEDS,0xF0 + (uint32_t)nrf_gzll_get_error_code());
nrf_delay_us(1000000); // 1 second delay
}
// Optionally send the CPU to sleep while waiting for a callback.
// __WFI();
}
}
static gzp_tx_rx_trans_result_t gzp_tx_rx_transaction(const uint8_t *tx_packet, uint8_t tx_length, uint8_t *rx_dst, uint32_t *rx_length, uint8_t pipe)
{
gzp_tx_rx_trans_result_t retval;
uint8_t fetch_packet[GZP_CMD_FETCH_RESP_PAYLOAD_LENGTH];
bool tx_packet_success;
bool fetch_success;
uint32_t local_rx_length = GZP_MAX_ACK_PAYLOAD_LENGTH;
uint32_t temp_lifetime;
nrf_gzp_flush_rx_fifo(pipe);
retval = GZP_TX_RX_FAILED_TO_SEND;
(void)nrf_gzll_disable();
while(nrf_gzll_is_enabled())
{}
temp_lifetime = nrf_gzll_get_sync_lifetime();
(void)nrf_gzll_set_sync_lifetime(GZP_TX_RX_TRANS_DELAY * 3); // 3 = RXPERIOD * 2 + margin
(void)nrf_gzll_enable();
tx_packet_success = gzp_tx_packet(tx_packet, tx_length, pipe);
if(tx_packet_success)
{
retval = GZP_TX_RX_NO_RESPONSE;
nrf_gzp_flush_rx_fifo(pipe);
fetch_packet[0] = (uint8_t)GZP_CMD_FETCH_RESP;
gzp_tick_sleep_rx_periods(GZP_TX_RX_TRANS_DELAY);
tx_packet_success = gzp_tx_packet(fetch_packet, GZP_CMD_FETCH_RESP_PAYLOAD_LENGTH, pipe);
if(tx_packet_success)
{
if(nrf_gzll_get_rx_fifo_packet_count(pipe))
{
local_rx_length = NRF_GZLL_CONST_MAX_PAYLOAD_LENGTH;
fetch_success = nrf_gzll_fetch_packet_from_rx_fifo(pipe, rx_dst, &local_rx_length);
}
else
{
fetch_success = false;
}
if(fetch_success)
{
retval = GZP_TX_RX_SUCCESS;
}
else
{
//print_string("GZP_TX_FETCH_FAILED\r\n");
}
}
else
{
//print_string("GZP_TX_FETCH_NO_ACK\r\n");
}
}
(void)nrf_gzll_disable();
while(nrf_gzll_is_enabled())
{}
(void)nrf_gzll_set_sync_lifetime(temp_lifetime);
(void)nrf_gzll_enable();
return retval;
}
bool gzp_address_req_send()
{
//lint -save -e514 Unusual use of a Boolean expression (gzll_update_ok &= ...)
uint8_t i;
bool retval = false;
bool success;
uint8_t address_req[GZP_CMD_HOST_ADDRESS_REQ_PAYLOAD_LENGTH];
uint8_t rx_payload[NRF_GZLL_CONST_MAX_PAYLOAD_LENGTH];
uint32_t rx_payload_length = NRF_GZLL_CONST_MAX_PAYLOAD_LENGTH;
nrf_gzll_tx_power_t temp_power;
uint32_t temp_max_tx_attempts;
bool gzll_update_ok = true;
// Store parameters that are temporarily changed
temp_max_tx_attempts = nrf_gzll_get_max_tx_attempts();
temp_power = nrf_gzll_get_tx_power();
// Modify parameters
nrf_gzp_disable_gzll();
gzll_update_ok &= nrf_gzll_set_max_tx_attempts(GZP_REQ_TX_TIMEOUT);
gzll_update_ok &= nrf_gzll_set_tx_power(GZP_POWER);
// Flush RX FIFO
gzll_update_ok &= nrf_gzll_flush_rx_fifo(GZP_PAIRING_PIPE);
gzll_update_ok &= nrf_gzll_enable();
// Build "request" packet
address_req[0] = (uint8_t)GZP_CMD_HOST_ADDRESS_REQ;
// Send a number of packets in order to broadcast that devices not within
// close proximity must back off.
for(i = 0; i < GZP_MAX_BACKOFF_PACKETS; i++)
{
success = gzp_tx_packet(address_req, GZP_CMD_HOST_ADDRESS_REQ_PAYLOAD_LENGTH, GZP_PAIRING_PIPE);
if(success)
{
nrf_gzp_flush_rx_fifo(GZP_PAIRING_PIPE);
}
else
{
break;
}
}
gzp_delay_rx_periods(GZP_TX_ACK_WAIT_TIMEOUT);
// Send message for fetching pairing response from host.
address_req[0] = (uint8_t)GZP_CMD_HOST_ADDRESS_FETCH;
success = gzp_tx_packet(address_req, GZP_CMD_HOST_ADDRESS_REQ_PAYLOAD_LENGTH, GZP_PAIRING_PIPE);
if(success && latest_tx_info.payload_received_in_ack)
{
// If pairing response received
if(nrf_gzll_get_rx_fifo_packet_count(GZP_PAIRING_PIPE) > 0)
{
rx_payload_length = NRF_GZLL_CONST_MAX_PAYLOAD_LENGTH; //dummy placeholder
if(nrf_gzll_fetch_packet_from_rx_fifo(GZP_PAIRING_PIPE, rx_payload, &rx_payload_length))
{
if(rx_payload[0] == (uint8_t)GZP_CMD_HOST_ADDRESS_RESP)
{
memcpy(gzp_system_address, &rx_payload[GZP_CMD_HOST_ADDRESS_RESP_ADDRESS], GZP_SYSTEM_ADDRESS_WIDTH);
gzll_update_ok &= gzp_update_radio_params(&rx_payload[GZP_CMD_HOST_ADDRESS_RESP_ADDRESS]);
#ifndef GZP_NV_STORAGE_DISABLE
(void)gzp_params_store(false); // "False" indicates that only "system address" part of DB element will be stored
#endif
retval = true;
}
}
}
}
else
{
gzp_delay_rx_periods(GZP_NOT_PROXIMITY_BACKOFF_RX_TIMEOUT - GZP_TX_ACK_WAIT_TIMEOUT);
}
gzp_delay_rx_periods(GZP_STEP1_RX_TIMEOUT);
// Clean-up and restore parameters temporarily modified
nrf_gzp_disable_gzll();
gzll_update_ok &= nrf_gzll_flush_rx_fifo(GZP_PAIRING_PIPE);
gzll_update_ok &= nrf_gzll_flush_tx_fifo(GZP_PAIRING_PIPE);
gzll_update_ok &= nrf_gzll_set_max_tx_attempts(temp_max_tx_attempts);
gzll_update_ok &= nrf_gzll_set_tx_power(temp_power);
gzll_update_ok &= nrf_gzll_enable();
if(!gzll_update_ok)
{
/*
The update of the Gazell parameters failed. Use nrf_gzll_get_error_code()
to investigate the cause.
*/
}
return retval;
//lint -restore
}
int main()
{
bool init_ok = false;
//lint -save -e514 Unusual use of a boolean expression (use of &= assignment).
// Configure input pins
nrf_gpio_pin_dir_set(BUTTON_SEND_MOUSE_DATA, NRF_GPIO_PIN_DIR_INPUT);
nrf_gpio_pin_dir_set(BUTTON_SEND_KEYBOARD_DATA, NRF_GPIO_PIN_DIR_INPUT);
nrf_gpio_port_dir_set(LED_PORT, NRF_GPIO_PORT_DIR_OUTPUT);
// Initialize and enable "mouse sensor"
init_ok = mouse_sensor_init(MOUSE_SENSOR_SAMPLE_PERIOD_8_MS);
mouse_sensor_enable();
// Initialize and enable Gazell
init_ok &= nrf_gzll_init(NRF_GZLL_MODE_DEVICE);
// Ensure Gazell parameters are configured.
init_ok &= nrf_gzll_set_max_tx_attempts(150);
init_ok &= nrf_gzll_set_device_channel_selection_policy(NRF_GZLLDE_DEVICE_CHANNEL_SELECTION_POLICY);
init_ok &= nrf_gzll_set_timeslot_period(NRF_GZLLDE_RXPERIOD_DIV_2);
init_ok &= nrf_gzll_set_sync_lifetime(0); // Asynchronous mode, more efficient for pairing.
switch(gzp_get_pairing_status())
{
case -2:
host_id_received = false;
system_addr_received = false;
break;
case -1:
host_id_received = false;
system_addr_received = true;
break;
default:
host_id_received = true;
system_addr_received = true;
}
gzp_init();
init_ok &= nrf_gzll_enable();
if(init_ok)
{
while(1)
{
// If BUTTON_SEND_MOUSE_DATA button is pressed.
if(nrf_gpio_pin_read(BUTTON_SEND_MOUSE_DATA) == 0)
{
read_mouse_and_send();
}
// If BUTTON_SEND_KEYBOARD_DATA button is pressed
if(nrf_gpio_pin_read(BUTTON_SEND_KEYBOARD_DATA) == 0)
{
read_keyboard_and_send();
}
/*
CPU sleep.
We will wake up from all enabled interrupts, which here are the
internal Gazell interrupts and the "mouse sensor" internal timer
interrupt.
*/
//__WFI();
}
}
else
{
/*
The initialization failed. Use nrf_gzll_get_error_code()
to investigate the cause.
*/
}
//lint -restore
}
int main()
{
bool init_ok = false;
uint32_t err_code;
//lint -save -e514 Unusual use of a boolean expression (use of &= assignment).
const app_uart_comm_params_t comm_params =
{
RX_PIN_NUMBER,
TX_PIN_NUMBER,
RTS_PIN_NUMBER,
CTS_PIN_NUMBER,
APP_UART_FLOW_CONTROL_ENABLED,
false,
UART_BAUDRATE_BAUDRATE_Baud38400
};
APP_UART_FIFO_INIT(&comm_params,
UART_RX_BUF_SIZE,
UART_TX_BUF_SIZE,
uart_error_handle,
APP_IRQ_PRIORITY_LOW,
err_code);
(void)err_code;
UNUSED_VARIABLE(bsp_init(BSP_INIT_BUTTONS,0,NULL));
printf("Desktop emulator example\n");
// Initialize and enable "mouse sensor"
init_ok = mouse_sensor_init(MOUSE_SENSOR_SAMPLE_PERIOD_8_MS);
mouse_sensor_enable();
// Initialize and enable Gazell
init_ok &= nrf_gzll_init(NRF_GZLL_MODE_DEVICE);
// Ensure Gazell parameters are configured.
init_ok &= nrf_gzll_set_max_tx_attempts(150);
init_ok &= nrf_gzll_set_device_channel_selection_policy(NRF_GZLLDE_DEVICE_CHANNEL_SELECTION_POLICY);
init_ok &= nrf_gzll_set_timeslot_period(NRF_GZLLDE_RXPERIOD_DIV_2);
init_ok &= nrf_gzll_set_sync_lifetime(0); // Asynchronous mode, more efficient for pairing.
switch(gzp_get_pairing_status())
{
case -2:
host_id_received = false;
system_addr_received = false;
break;
case -1:
host_id_received = false;
system_addr_received = true;
break;
default:
host_id_received = true;
system_addr_received = true;
}
gzp_init();
init_ok &= nrf_gzll_enable();
if(init_ok)
{
while(1)
{
// If BUTTON_SEND_MOUSE_DATA button is pressed.
bool send_mouse_data_button_pressed;
err_code = bsp_button_is_pressed(SEND_MOUSE_DATA_BUTTON_ID,&(send_mouse_data_button_pressed));
if( send_mouse_data_button_pressed)
{
read_mouse_and_send();
}
else
{
//indicate mouse button not pressed
}
// If BUTTON_SEND_KEYBOARD_DATA button is pressed
bool send_keyboard_data_button_pressed;
err_code = bsp_button_is_pressed(SEND_KEYBOARD_DATA_BUTTON_ID,&(send_keyboard_data_button_pressed));
if(send_keyboard_data_button_pressed)
{
read_keyboard_and_send();
}
else
{
//indicate keyboard button not pressed
}
error_report();
/*
CPU sleep.
We will wake up from all enabled interrupts, which here are the
internal Gazell interrupts and the "mouse sensor" internal timer
interrupt.
*/
//__WFI();
}
}
else
{
/*
The initialization failed. Use nrf_gzll_get_error_code()
to investigate the cause.
*/
}
//lint -restore
}