I created own app button library. It's just return handler into main with number of pin and type of push - short or long. Also I created library for rgb_led (using nrf_pwm).
Both libraries work ok when I use them in project based on peripheral example (without softdevice). But the weird things occurred when I add them into project based on buttonless_dfu example. My steps for creating own project based on existing buttonless_dfu from sdk15.3 (15.2 is the same):
1. I have added ble_nus service and create macro for turning off dfu things for ability flash chip without bootloader.
2. I have separated bluetooth related functions from main into ble_main.c, handler for ble events I add into ble_handle.c. I have not changed any of functionality just do project more readable and clear for me.
Now all works good without any issues.
Then after adding my two libraries into this project, they can not work correctly together. Actually rgb_led (pwm) works ok without buttons (gpiote), with buttons rgb light pale or not works at all. if I comment ble_init_m() also everything works ok. I understand that probably issue related to bsp library because it's also used gpiote and happens reinit or maybe use the same instance or something else. I try comment bsp_led calling function but not helped.
If I wrap nrf_drv_gpiote_init() by APP_ERROR_CHECK I got fatal error:
0> <error> app: ERROR 8 [NRF_ERROR_INVALID_STATE] at :0
0> PC at: 0x00000000
0> <error> app: End of error report
main.c
#include "ble_main.h"
#include "buttons.h"
#include "rgb_led.h"
void but_handler(bool state, nrfx_gpiote_pin_t pin){
SEGGER_RTT_printf(0, "button = %d, long = %d\n", pin, state);
ble_send_printf2("b=%d, long=%d\n", pin, state);
}
int main(void)
{
ble_init_m();
pwm_init_rgb();
//just blinky 5 times green color of rgb
rgb_set(0,50,0,5,500);
uint8_t buttons[] = {7,8,9,10};
button_init(buttons, but_handler);
for (;;)
{
}
}
buttons.c
#include "buttons.h"
APP_TIMER_DEF(but_timer);
static but_evt_handler_t p_but_evt_handler;
static uint8_t c_pin;
typedef enum {RESET, CHECK, CHECKED} but_state_t;
static but_state_t state = RESET;
static bool pin_set() { return nrf_drv_gpiote_in_is_set(c_pin); }
void but_timer_handler (void *p_context){
if(state == CHECK && pin_set()){
app_timer_start(but_timer, APP_TIMER_TICKS(1000), NULL);
state = CHECKED;
}
else if (state == CHECKED && pin_set()){ //long press
p_but_evt_handler(true, c_pin);
state = RESET;
}
else state = RESET;
}
void in_pin_handler(nrf_drv_gpiote_pin_t pin, nrf_gpiote_polarity_t action){
c_pin = pin;
if(state == RESET){
state = CHECK;
app_timer_start(but_timer, 1500, NULL);
}
else if (state == CHECKED && !pin_set()){ //short press
p_but_evt_handler(false, c_pin);
state = RESET;
app_timer_stop(but_timer);
}
}
static void button_timer_init(){
ret_code_t error_code;
app_timer_init();
app_timer_create(&but_timer, APP_TIMER_MODE_SINGLE_SHOT, but_timer_handler);
if(nrf_sdh_is_enabled()){
} else {
NRF_CLOCK->TASKS_LFCLKSTART = 1;
while (NRF_CLOCK->EVENTS_LFCLKSTARTED == 0);
}
APP_ERROR_CHECK(nrf_drv_gpiote_init());
}
void button_init(uint8_t* buttons, but_evt_handler_t but_evt_handler){
button_timer_init();
p_but_evt_handler = but_evt_handler;
nrf_drv_gpiote_in_config_t in_config = GPIOTE_CONFIG_IN_SENSE_TOGGLE(true);
in_config.pull = NRF_GPIO_PIN_PULLUP;
for(uint8_t i = 0; i < strlen((char*)buttons); i++){
nrf_drv_gpiote_in_init(buttons[i], &in_config, in_pin_handler);
nrf_drv_gpiote_in_event_enable(buttons[i], true);
}
}
buttons.h
#ifndef BUTTONS_H__ #define BUTTONS_H__ #include "nrf_drv_gpiote.h" #include <stdbool.h> #include <stdint.h> #include <string.h> #include "nrf_log.h" #include "nrf_log_ctrl.h" #include "nrf_log_default_backends.h" #include "SEGGER_RTT.h" #include "app_timer.h" #include "nordic_common.h" #include "nrf.h" #include "app_error.h" #include "nrf_gpio.h" //#include "ble_main.h" typedef void (*but_evt_handler_t)(bool, nrf_drv_gpiote_pin_t); void button_init(uint8_t* buttons, but_evt_handler_t but_evt_handler); #endif
rgb_led.c
#include "rgb_led.h"
nrf_drv_pwm_t m_pwm_rgb = NRF_DRV_PWM_INSTANCE(0);
nrf_pwm_values_individual_t seq_value_rgb[2];
nrf_pwm_sequence_t seq_rgb;
void pwm_init_rgb()
{
nrf_gpio_cfg_output(RGB_GND);
nrf_gpio_pin_set(RGB_GND);
//uint32_t err_code;
nrf_drv_pwm_config_t const config0 =
{
.output_pins =
{
RED_PIN | NRF_DRV_PWM_PIN_INVERTED, // channel 0
GREEN_PIN | NRF_DRV_PWM_PIN_INVERTED, // channel 1
BLUE_PIN | NRF_DRV_PWM_PIN_INVERTED, // channel 2
NRF_DRV_PWM_PIN_NOT_USED, // channel 3
},
.irq_priority = APP_IRQ_PRIORITY_LOW,
.base_clock = NRF_PWM_CLK_1MHz,
.count_mode = NRF_PWM_MODE_UP,
.top_value = RGB_TOP,
.load_mode = NRF_PWM_LOAD_INDIVIDUAL,
.step_mode = NRF_PWM_STEP_AUTO
};
nrf_drv_pwm_init(&m_pwm_rgb, &config0, NULL);
seq_value_rgb[0].channel_0 = RGB_TOP - 200;
seq_value_rgb[1].channel_0 = RGB_TOP - 0;
seq_value_rgb[0].channel_1 = RGB_TOP - 200;
seq_value_rgb[1].channel_1 = RGB_TOP - 0;
seq_value_rgb[0].channel_2 = RGB_TOP - 200;
seq_value_rgb[1].channel_2 = RGB_TOP - 0;
seq_rgb.values.p_individual = seq_value_rgb;
seq_rgb.length = NRF_PWM_VALUES_LENGTH(seq_value_rgb);
seq_rgb.repeats = 0;
seq_rgb.end_delay = 0;
// nrf_drv_pwm_simple_playback(&m_pwm_rgb, &seq_rgb, 0, NRF_DRV_PWM_FLAG_STOP);
}
void rgb_set(uint16_t red_value, uint16_t green_value, uint16_t blue_value, uint8_t times, uint16_t delay_time)
{
seq_value_rgb[0].channel_0 = red_value;
seq_value_rgb[1].channel_0 = 0;
seq_value_rgb[0].channel_1 = green_value;
seq_value_rgb[1].channel_1 = 0;
seq_value_rgb[0].channel_2 = blue_value;
seq_value_rgb[1].channel_2 = 0;
seq_rgb.values.p_individual = seq_value_rgb;
seq_rgb.length = NRF_PWM_VALUES_LENGTH(seq_value_rgb);
if(times > 0)
{
seq_rgb.repeats = delay_time;
nrf_drv_pwm_simple_playback(&m_pwm_rgb, &seq_rgb, (uint16_t)times, NRF_DRV_PWM_FLAG_STOP);
}
else
{
seq_rgb.repeats = 0;
nrf_drv_pwm_simple_playback(&m_pwm_rgb, &seq_rgb, 2, NRF_DRV_PWM_FLAG_LOOP);
}
}
rgb_led.h
#ifndef RGB_LED_H #define RGB_LED_H #include "util.h" #include "nrf_drv_pwm.h" #include <stdio.h> #include <string.h> #include "nrf_drv_pwm.h" #include "app_util_platform.h" #include "app_error.h" #include "boards.h" #include "bsp.h" #include "app_timer.h" #include "nrf_drv_clock.h" #include "nrf_log.h" #include "nrf_log_ctrl.h" #include "nrf_log_default_backends.h" #include "nrfx_pwm.h" #define RGB_TOP 255 #define RGB_GND 3 #define RED_PIN 2 #define GREEN_PIN 5 #define BLUE_PIN 4 void pwm_init_rgb(void); void rgb_set(uint16_t red_value, uint16_t green_value, uint16_t blue_value, uint8_t times, uint16_t delay_time); #endif
ble_main.c
#include "ble_main.h"
ble_handler_t p_ble_handler;
static uint16_t m_conn_handle = BLE_CONN_HANDLE_INVALID; /**< Handle of the current connection. */
static void advertising_start(bool erase_bonds); /**< Forward declaration of advertising start function */
// YOUR_JOB: Use UUIDs for service(s) used in your application.
static ble_uuid_t m_adv_uuids[] = {{BLE_UUID_DEVICE_INFORMATION_SERVICE, BLE_UUID_TYPE_BLE}};
/**@brief Handler for shutdown preparation.
*
* @details During shutdown procedures, this function will be called at a 1 second interval
* untill the function returns true. When the function returns true, it means that the
* app is ready to reset to DFU mode.
*
* @param[in] event Power manager event.
*
* @retval True if shutdown is allowed by this power manager handler, otherwise false.
*/
static bool app_shutdown_handler(nrf_pwr_mgmt_evt_t event)
{
switch (event)
{
case NRF_PWR_MGMT_EVT_PREPARE_DFU:
NRF_LOG_INFO("Power management wants to reset to DFU mode.");
// YOUR_JOB: Get ready to reset into DFU mode
//
// If you aren't finished with any ongoing tasks, return "false" to
// signal to the system that reset is impossible at this stage.
//
// Here is an example using a variable to delay resetting the device.
//
// if (!m_ready_for_reset)
// {
// return false;
// }
// else
//{
//
// // Device ready to enter
// uint32_t err_code;
// err_code = sd_softdevice_disable();
// APP_ERROR_CHECK(err_code);
// err_code = app_timer_stop_all();
// APP_ERROR_CHECK(err_code);
//}
break;
default:
// YOUR_JOB: Implement any of the other events available from the power management module:
// -NRF_PWR_MGMT_EVT_PREPARE_SYSOFF
// -NRF_PWR_MGMT_EVT_PREPARE_WAKEUP
// -NRF_PWR_MGMT_EVT_PREPARE_RESET
return true;
}
NRF_LOG_INFO("Power management allowed to reset to DFU mode.");
return true;
}
//lint -esym(528, m_app_shutdown_handler)
/**@brief Register application shutdown handler with priority 0.
*/
NRF_PWR_MGMT_HANDLER_REGISTER(app_shutdown_handler, 0);
#ifdef DFU
static void buttonless_dfu_sdh_state_observer(nrf_sdh_state_evt_t state, void * p_context)
{
if (state == NRF_SDH_EVT_STATE_DISABLED)
{
// Softdevice was disabled before going into reset. Inform bootloader to skip CRC on next boot.
nrf_power_gpregret2_set(BOOTLOADER_DFU_SKIP_CRC);
//Go to system off.
nrf_pwr_mgmt_shutdown(NRF_PWR_MGMT_SHUTDOWN_GOTO_SYSOFF);
}
}
/* nrf_sdh state observer. */
NRF_SDH_STATE_OBSERVER(m_buttonless_dfu_state_obs, 0) =
{
.handler = buttonless_dfu_sdh_state_observer,
};
#endif
static void advertising_config_get(ble_adv_modes_config_t * p_config)
{
memset(p_config, 0, sizeof(ble_adv_modes_config_t));
p_config->ble_adv_fast_enabled = true;
p_config->ble_adv_fast_interval = APP_ADV_INTERVAL;
p_config->ble_adv_fast_timeout = APP_ADV_DURATION;
}
#ifdef DFU
static void disconnect(uint16_t conn_handle, void * p_context)
{
UNUSED_PARAMETER(p_context);
ret_code_t err_code = sd_ble_gap_disconnect(conn_handle, BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION);
if (err_code != NRF_SUCCESS)
{
NRF_LOG_WARNING("Failed to disconnect connection. Connection handle: %d Error: %d", conn_handle, err_code);
}
else
{
NRF_LOG_DEBUG("Disconnected connection handle %d", conn_handle);
}
}
#endif
// YOUR_JOB: Update this code if you want to do anything given a DFU event (optional).
/**@brief Function for handling dfu events from the Buttonless Secure DFU service
*
* @param[in] event Event from the Buttonless Secure DFU service.
*/
#ifdef DFU
static void ble_dfu_evt_handler(ble_dfu_buttonless_evt_type_t event)
{
switch (event)
{
case BLE_DFU_EVT_BOOTLOADER_ENTER_PREPARE:
{
NRF_LOG_INFO("Device is preparing to enter bootloader mode.");
// Prevent device from advertising on disconnect.
ble_adv_modes_config_t config;
advertising_config_get(&config);
config.ble_adv_on_disconnect_disabled = true;
ble_advertising_modes_config_set(&m_advertising, &config);
// Disconnect all other bonded devices that currently are connected.
// This is required to receive a service changed indication
// on bootup after a successful (or aborted) Device Firmware Update.
uint32_t conn_count = ble_conn_state_for_each_connected(disconnect, NULL);
NRF_LOG_INFO("Disconnected %d links.", conn_count);
break;
}
case BLE_DFU_EVT_BOOTLOADER_ENTER:
// YOUR_JOB: Write app-specific unwritten data to FLASH, control finalization of this
// by delaying reset by reporting false in app_shutdown_handler
NRF_LOG_INFO("Device will enter bootloader mode.");
break;
case BLE_DFU_EVT_BOOTLOADER_ENTER_FAILED:
NRF_LOG_ERROR("Request to enter bootloader mode failed asynchroneously.");
// YOUR_JOB: Take corrective measures to resolve the issue
// like calling APP_ERROR_CHECK to reset the device.
break;
case BLE_DFU_EVT_RESPONSE_SEND_ERROR:
NRF_LOG_ERROR("Request to send a response to client failed.");
// YOUR_JOB: Take corrective measures to resolve the issue
// like calling APP_ERROR_CHECK to reset the device.
APP_ERROR_CHECK(false);
break;
default:
NRF_LOG_ERROR("Unknown event from ble_dfu_buttonless.");
break;
}
}
#endif
/**@brief Callback function for asserts in the SoftDevice.
*
* @details This function will be called in case of an assert in the SoftDevice.
*
* @warning This handler is an example only and does not fit a final product. You need to analyze
* how your product is supposed to react in case of Assert.
* @warning On assert from the SoftDevice, the system can only recover on reset.
*
* @param[in] line_num Line number of the failing ASSERT call.
* @param[in] file_name File name of the failing ASSERT call.
*/
//void assert_nrf_callback(uint16_t line_num, const uint8_t * p_file_name)
//{
// app_error_handler(DEAD_BEEF, line_num, p_file_name);
//}
/**@brief Function for handling Peer Manager events.
*
* @param[in] p_evt Peer Manager event.
*/
static void pm_evt_handler(pm_evt_t const * p_evt)
{
pm_handler_on_pm_evt(p_evt);
pm_handler_flash_clean(p_evt);
}
/**@brief Function for the Timer initialization.
*
* @details Initializes the timer module. This creates and starts application timers.
*/
static void timers_init(void)
{
// Initialize timer module.
uint32_t err_code = app_timer_init();
APP_ERROR_CHECK(err_code);
}
/**@brief Function for the GAP initialization.
*
* @details This function sets up all the necessary GAP (Generic Access Profile) parameters of the
* device including the device name, appearance, and the preferred connection parameters.
*/
static void gap_params_init(void)
{
uint32_t err_code;
ble_gap_conn_params_t gap_conn_params;
ble_gap_conn_sec_mode_t sec_mode;
BLE_GAP_CONN_SEC_MODE_SET_OPEN(&sec_mode);
err_code = sd_ble_gap_device_name_set(&sec_mode,
(const uint8_t *)DEVICE_NAME,
strlen(DEVICE_NAME));
APP_ERROR_CHECK(err_code);
/* YOUR_JOB: Use an appearance value matching the application's use case.
err_code = sd_ble_gap_appearance_set(BLE_APPEARANCE_);
APP_ERROR_CHECK(err_code); */
memset(&gap_conn_params, 0, sizeof(gap_conn_params));
gap_conn_params.min_conn_interval = MIN_CONN_INTERVAL;
gap_conn_params.max_conn_interval = MAX_CONN_INTERVAL;
gap_conn_params.slave_latency = SLAVE_LATENCY;
gap_conn_params.conn_sup_timeout = CONN_SUP_TIMEOUT;
err_code = sd_ble_gap_ppcp_set(&gap_conn_params);
APP_ERROR_CHECK(err_code);
}
/**@brief Function for handling Queued Write Module errors.
*
* @details A pointer to this function will be passed to each service which may need to inform the
* application about an error.
*
* @param[in] nrf_error Error code containing information about what went wrong.
*/
static void nrf_qwr_error_handler(uint32_t nrf_error)
{
APP_ERROR_HANDLER(nrf_error);
}
static void nus_data_handler(ble_nus_evt_t * p_evt)
{
//code here later
p_ble_handler(p_evt);
}
/**@brief Function for initializing services that will be used by the application.
*/
static void services_init(void)
{
uint32_t err_code;
nrf_ble_qwr_init_t qwr_init = {0};
// Initialize Queued Write Module.
qwr_init.error_handler = nrf_qwr_error_handler;
err_code = nrf_ble_qwr_init(&m_qwr, &qwr_init);
APP_ERROR_CHECK(err_code);
#ifdef DFU
ble_dfu_buttonless_init_t dfus_init = {0};
dfus_init.evt_handler = ble_dfu_evt_handler;
err_code = ble_dfu_buttonless_init(&dfus_init);
APP_ERROR_CHECK(err_code);
#endif
ble_nus_init_t nus_init;
// Initialize NUS.
memset(&nus_init, 0, sizeof(nus_init));
nus_init.data_handler = nus_data_handler;
err_code = ble_nus_init(&m_nus, &nus_init);
APP_ERROR_CHECK(err_code);
}
/**@brief Function for handling the Connection Parameters Module.
*
* @details This function will be called for all events in the Connection Parameters Module which
* are passed to the application.
* @note All this function does is to disconnect. This could have been done by simply
* setting the disconnect_on_fail config parameter, but instead we use the event
* handler mechanism to demonstrate its use.
*
* @param[in] p_evt Event received from the Connection Parameters Module.
*/
static void on_conn_params_evt(ble_conn_params_evt_t * p_evt)
{
uint32_t err_code;
if (p_evt->evt_type == BLE_CONN_PARAMS_EVT_FAILED)
{
err_code = sd_ble_gap_disconnect(m_conn_handle, BLE_HCI_CONN_INTERVAL_UNACCEPTABLE);
APP_ERROR_CHECK(err_code);
}
}
/**@brief Function for handling a Connection Parameters error.
*
* @param[in] nrf_error Error code containing information about what went wrong.
*/
static void conn_params_error_handler(uint32_t nrf_error)
{
APP_ERROR_HANDLER(nrf_error);
}
/**@brief Function for initializing the Connection Parameters module.
*/
static void conn_params_init(void)
{
uint32_t err_code;
ble_conn_params_init_t cp_init;
memset(&cp_init, 0, sizeof(cp_init));
cp_init.p_conn_params = NULL;
cp_init.first_conn_params_update_delay = FIRST_CONN_PARAMS_UPDATE_DELAY;
cp_init.next_conn_params_update_delay = NEXT_CONN_PARAMS_UPDATE_DELAY;
cp_init.max_conn_params_update_count = MAX_CONN_PARAMS_UPDATE_COUNT;
cp_init.start_on_notify_cccd_handle = BLE_GATT_HANDLE_INVALID;
cp_init.disconnect_on_fail = false;
cp_init.evt_handler = on_conn_params_evt;
cp_init.error_handler = conn_params_error_handler;
err_code = ble_conn_params_init(&cp_init);
APP_ERROR_CHECK(err_code);
}
/**@brief Function for starting timers.
*/
static void application_timers_start(void)
{
/* YOUR_JOB: Start your timers. below is an example of how to start a timer.
uint32_t err_code;
err_code = app_timer_start(m_app_timer_id, TIMER_INTERVAL, NULL);
APP_ERROR_CHECK(err_code); */
}
/**@brief Function for putting the chip into sleep mode.
*
* @note This function will not return.
*/
static void sleep_mode_enter(void)
{
uint32_t err_code = bsp_indication_set(BSP_INDICATE_IDLE);
APP_ERROR_CHECK(err_code);
// Prepare wakeup buttons.
err_code = bsp_btn_ble_sleep_mode_prepare();
APP_ERROR_CHECK(err_code);
//Disable SoftDevice. It is required to be able to write to GPREGRET2 register (SoftDevice API blocks it).
//GPREGRET2 register holds the information about skipping CRC check on next boot.
err_code = nrf_sdh_disable_request();
APP_ERROR_CHECK(err_code);
}
/**@brief Function for handling advertising events.
*
* @details This function will be called for advertising events which are passed to the application.
*
* @param[in] ble_adv_evt Advertising event.
*/
static void on_adv_evt(ble_adv_evt_t ble_adv_evt)
{
uint32_t err_code;
switch (ble_adv_evt)
{
case BLE_ADV_EVT_FAST:
err_code = bsp_indication_set(BSP_INDICATE_ADVERTISING);
APP_ERROR_CHECK(err_code);
break;
case BLE_ADV_EVT_IDLE:
sleep_mode_enter();
break;
default:
break;
}
}
/**@brief Function for handling BLE events.
*
* @param[in] p_ble_evt Bluetooth stack event.
* @param[in] p_context Unused.
*/
static void ble_evt_handler(ble_evt_t const * p_ble_evt, void * p_context)
{
uint32_t err_code = NRF_SUCCESS;
switch (p_ble_evt->header.evt_id)
{
case BLE_GAP_EVT_DISCONNECTED:
// LED indication will be changed when advertising starts.
break;
case BLE_GAP_EVT_CONNECTED:
err_code = bsp_indication_set(BSP_INDICATE_CONNECTED);
APP_ERROR_CHECK(err_code);
m_conn_handle = p_ble_evt->evt.gap_evt.conn_handle;
err_code = nrf_ble_qwr_conn_handle_assign(&m_qwr, m_conn_handle);
APP_ERROR_CHECK(err_code);
break;
case BLE_GAP_EVT_PHY_UPDATE_REQUEST:
{
NRF_LOG_DEBUG("PHY update request.");
ble_gap_phys_t const phys =
{
.rx_phys = BLE_GAP_PHY_AUTO,
.tx_phys = BLE_GAP_PHY_AUTO,
};
err_code = sd_ble_gap_phy_update(p_ble_evt->evt.gap_evt.conn_handle, &phys);
APP_ERROR_CHECK(err_code);
break;
}
case BLE_GATTC_EVT_TIMEOUT:
// Disconnect on GATT Client timeout event.
NRF_LOG_DEBUG("GATT Client Timeout.");
err_code = sd_ble_gap_disconnect(p_ble_evt->evt.gattc_evt.conn_handle,
BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION);
APP_ERROR_CHECK(err_code);
break;
case BLE_GATTS_EVT_TIMEOUT:
// Disconnect on GATT Server timeout event.
NRF_LOG_DEBUG("GATT Server Timeout.");
err_code = sd_ble_gap_disconnect(p_ble_evt->evt.gatts_evt.conn_handle,
BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION);
APP_ERROR_CHECK(err_code);
break;
default:
// No implementation needed.
break;
}
}
/**@brief Function for initializing the BLE stack.
*
* @details Initializes the SoftDevice and the BLE event interrupt.
*/
static void ble_stack_init(void)
{
ret_code_t err_code;
err_code = nrf_sdh_enable_request();
APP_ERROR_CHECK(err_code);
// Configure the BLE stack using the default settings.
// Fetch the start address of the application RAM.
uint32_t ram_start = 0;
err_code = nrf_sdh_ble_default_cfg_set(APP_BLE_CONN_CFG_TAG, &ram_start);
APP_ERROR_CHECK(err_code);
// Enable BLE stack.
err_code = nrf_sdh_ble_enable(&ram_start);
APP_ERROR_CHECK(err_code);
NRF_SDH_BLE_OBSERVER(m_ble_observer, APP_BLE_OBSERVER_PRIO, ble_evt_handler, NULL);
}
/**@brief Function for the Peer Manager initialization.
*/
static void peer_manager_init()
{
ble_gap_sec_params_t sec_param;
ret_code_t err_code;
err_code = pm_init();
APP_ERROR_CHECK(err_code);
memset(&sec_param, 0, sizeof(ble_gap_sec_params_t));
// Security parameters to be used for all security procedures.
sec_param.bond = SEC_PARAM_BOND;
sec_param.mitm = SEC_PARAM_MITM;
sec_param.lesc = SEC_PARAM_LESC;
sec_param.keypress = SEC_PARAM_KEYPRESS;
sec_param.io_caps = SEC_PARAM_IO_CAPABILITIES;
sec_param.oob = SEC_PARAM_OOB;
sec_param.min_key_size = SEC_PARAM_MIN_KEY_SIZE;
sec_param.max_key_size = SEC_PARAM_MAX_KEY_SIZE;
sec_param.kdist_own.enc = 1;
sec_param.kdist_own.id = 1;
sec_param.kdist_peer.enc = 1;
sec_param.kdist_peer.id = 1;
err_code = pm_sec_params_set(&sec_param);
APP_ERROR_CHECK(err_code);
err_code = pm_register(pm_evt_handler);
APP_ERROR_CHECK(err_code);
}
/** @brief Clear bonding information from persistent storage.
*/
static void delete_bonds(void)
{
ret_code_t err_code;
NRF_LOG_INFO("Erase bonds!");
err_code = pm_peers_delete();
APP_ERROR_CHECK(err_code);
}
/**@brief Function for handling events from the BSP module.
*
* @param[in] event Event generated when button is pressed.
*/
static void bsp_event_handler(bsp_event_t event)
{
uint32_t err_code;
switch (event)
{
case BSP_EVENT_SLEEP:
sleep_mode_enter();
break; // BSP_EVENT_SLEEP
case BSP_EVENT_DISCONNECT:
err_code = sd_ble_gap_disconnect(m_conn_handle,
BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION);
if (err_code != NRF_ERROR_INVALID_STATE)
{
APP_ERROR_CHECK(err_code);
}
break; // BSP_EVENT_DISCONNECT
case BSP_EVENT_WHITELIST_OFF:
if (m_conn_handle == BLE_CONN_HANDLE_INVALID)
{
err_code = ble_advertising_restart_without_whitelist(&m_advertising);
if (err_code != NRF_ERROR_INVALID_STATE)
{
APP_ERROR_CHECK(err_code);
}
}
break; // BSP_EVENT_KEY_0
default:
break;
}
}
/**@brief Function for initializing the Advertising functionality.
*/
static void advertising_init(void)
{
uint32_t err_code;
ble_advertising_init_t init;
memset(&init, 0, sizeof(init));
init.advdata.name_type = BLE_ADVDATA_FULL_NAME;
init.advdata.include_appearance = true;
init.advdata.flags = BLE_GAP_ADV_FLAGS_LE_ONLY_GENERAL_DISC_MODE;
init.advdata.uuids_complete.uuid_cnt = sizeof(m_adv_uuids) / sizeof(m_adv_uuids[0]);
init.advdata.uuids_complete.p_uuids = m_adv_uuids;
advertising_config_get(&init.config);
init.evt_handler = on_adv_evt;
err_code = ble_advertising_init(&m_advertising, &init);
APP_ERROR_CHECK(err_code);
ble_advertising_conn_cfg_tag_set(&m_advertising, APP_BLE_CONN_CFG_TAG);
}
/**@brief Function for initializing buttons and leds.
*
* @param[out] p_erase_bonds Will be true if the clear bonding button was pressed to wake the application up.
*/
static void buttons_leds_init(bool * p_erase_bonds)
{
uint32_t err_code;
bsp_event_t startup_event;
err_code = bsp_init(BSP_INIT_LEDS | BSP_INIT_BUTTONS, bsp_event_handler);
APP_ERROR_CHECK(err_code);
err_code = bsp_btn_ble_init(NULL, &startup_event);
APP_ERROR_CHECK(err_code);
*p_erase_bonds = (startup_event == BSP_EVENT_CLEAR_BONDING_DATA);
}
/**@brief Function for the Power manager.
*/
static void log_init(void)
{
uint32_t err_code = NRF_LOG_INIT(NULL);
APP_ERROR_CHECK(err_code);
NRF_LOG_DEFAULT_BACKENDS_INIT();
}
/**@brief Function for initializing the GATT module.
* @details The GATT module handles ATT_MTU and Data Length update procedures automatically.
*/
static void gatt_init(void)
{
ret_code_t err_code = nrf_ble_gatt_init(&m_gatt, NULL);
APP_ERROR_CHECK(err_code);
}
/**@brief Function for starting advertising.
*/
static void advertising_start(bool erase_bonds)
{
if (erase_bonds == true)
{
delete_bonds();
// Advertising is started by PM_EVT_PEERS_DELETE_SUCCEEDED event.
}
else
{
uint32_t err_code = ble_advertising_start(&m_advertising, BLE_ADV_MODE_FAST);
APP_ERROR_CHECK(err_code);
NRF_LOG_DEBUG("advertising is started");
}
}
static void power_management_init(void)
{
uint32_t err_code = nrf_pwr_mgmt_init();
APP_ERROR_CHECK(err_code);
}
/**@brief Function for handling the idle state (main loop).
*
* @details If there is no pending log operation, then sleep until next the next event occurs.
*/
//static void idle_state_handle(void)
//{
// if (NRF_LOG_PROCESS() == false)
// {
// nrf_pwr_mgmt_run();
// }
//}
void ble_send_m (uint8_t* data_array, uint16_t length) {
//uint16_t length = strlen((char*) data_array);
ble_nus_data_send(&m_nus, data_array, &length, m_conn_handle);
}
void ble_routine(ble_handler_t ble_handler){
p_ble_handler = ble_handler;
bool erase_bonds;
log_init();
#ifdef DFU
ret_code_t err_code;
// Initialize the async SVCI interface to bootloader before any interrupts are enabled.
err_code = ble_dfu_buttonless_async_svci_init();
APP_ERROR_CHECK(err_code);
#endif
timers_init();
power_management_init();
buttons_leds_init(&erase_bonds);
ble_stack_init();
peer_manager_init();
gap_params_init();
gatt_init();
advertising_init();
services_init();
conn_params_init();
// NRF_LOG_INFO("Buttonless DFU Application started.");
// Start execution.
application_timers_start();
advertising_start(erase_bonds);
}
ble_main.h
#ifndef BLE_MAIN_H__ #define BLE_MAIN_H__ #include <stdbool.h> #include <stdint.h> #include <string.h> #include "nrf_log.h" #include "nrf_log_ctrl.h" #include "nrf_log_default_backends.h" #include "SEGGER_RTT.h" #include "app_timer.h" #include "nordic_common.h" #include "nrf.h" #include "app_error.h" #include "nrf_dfu_ble_svci_bond_sharing.h" #include "nrf_svci_async_function.h" #include "nrf_svci_async_handler.h" #include "ble.h" #include "ble_hci.h" #include "ble_srv_common.h" #include "ble_advdata.h" #include "ble_advertising.h" #include "ble_conn_params.h" #include "nrf_sdh.h" #include "nrf_sdh_soc.h" #include "nrf_sdh_ble.h" #include "peer_manager.h" #include "peer_manager_handler.h" #include "bsp_btn_ble.h" #include "ble_hci.h" #include "ble_advdata.h" #include "ble_advertising.h" #include "ble_conn_state.h" #include "ble_dfu.h" #include "nrf_ble_gatt.h" #include "nrf_ble_qwr.h" #include "fds.h" #include "nrf_pwr_mgmt.h" #include "nrf_drv_clock.h" #include "nrf_power.h" #include "nrf_bootloader_info.h" #include "ble_nus.h" #include "ble_handle.h" #include "util.h" //!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! //uncomment for dfu enabled (will need flash bootloader) //#define DFU //!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! #define DEVICE_NAME "sdr_2" /**< Name of device. Will be included in the advertising data. */ #define MANUFACTURER_NAME "NordicSemiconductor" /**< Manufacturer. Will be passed to Device Information Service. */ #define APP_ADV_INTERVAL 300 /**< The advertising interval (in units of 0.625 ms. This value corresponds to 187.5 ms). */ #define APP_ADV_DURATION 18000 /**< The advertising duration (180 seconds) in units of 10 milliseconds. */ #define APP_BLE_OBSERVER_PRIO 3 /**< Application's BLE observer priority. You shouldn't need to modify this value. */ #define APP_BLE_CONN_CFG_TAG 1 /**< A tag identifying the SoftDevice BLE configuration. */ #define MIN_CONN_INTERVAL MSEC_TO_UNITS(100, UNIT_1_25_MS) /**< Minimum acceptable connection interval (0.1 seconds). */ #define MAX_CONN_INTERVAL MSEC_TO_UNITS(200, UNIT_1_25_MS) /**< Maximum acceptable connection interval (0.2 second). */ #define SLAVE_LATENCY 0 /**< Slave latency. */ #define CONN_SUP_TIMEOUT MSEC_TO_UNITS(4000, UNIT_10_MS) /**< Connection supervisory timeout (4 seconds). */ #define FIRST_CONN_PARAMS_UPDATE_DELAY APP_TIMER_TICKS(5000) /**< Time from initiating event (connect or start of notification) to first time sd_ble_gap_conn_param_update is called (5 seconds). */ #define NEXT_CONN_PARAMS_UPDATE_DELAY APP_TIMER_TICKS(30000) /**< Time between each call to sd_ble_gap_conn_param_update after the first call (30 seconds). */ #define MAX_CONN_PARAMS_UPDATE_COUNT 3 /**< Number of attempts before giving up the connection parameter negotiation. */ #define SEC_PARAM_BOND 1 /**< Perform bonding. */ #define SEC_PARAM_MITM 0 /**< Man In The Middle protection not required. */ #define SEC_PARAM_LESC 0 /**< LE Secure Connections not enabled. */ #define SEC_PARAM_KEYPRESS 0 /**< Keypress notifications not enabled. */ #define SEC_PARAM_IO_CAPABILITIES BLE_GAP_IO_CAPS_NONE /**< No I/O capabilities. */ #define SEC_PARAM_OOB 0 /**< Out Of Band data not available. */ #define SEC_PARAM_MIN_KEY_SIZE 7 /**< Minimum encryption key size. */ #define SEC_PARAM_MAX_KEY_SIZE 16 /**< Maximum encryption key size. */ #define DEAD_BEEF 0xDEADBEEF /**< Value used as error code on stack dump, can be used to identify stack location on stack unwind. */ NRF_BLE_GATT_DEF(m_gatt); /**< GATT module instance. */ NRF_BLE_QWR_DEF(m_qwr); /**< Context for the Queued Write module.*/ BLE_ADVERTISING_DEF(m_advertising); /**< Advertising module instance. */ BLE_NUS_DEF(m_nus, NRF_SDH_BLE_TOTAL_LINK_COUNT); /**< BLE NUS service instance. */ typedef void (* ble_handler_t) (ble_nus_evt_t * p_evt); //typedef void (* ble_nus_data_handler_t) (ble_nus_evt_t * p_evt); void ble_routine(ble_handler_t ble_handler); void ble_send_m (uint8_t* data_array, uint16_t length); #endif
ble_handle.c
#include "ble_handle.h"
#define BLE_ARR(n) char result_str[n]; \
if(strlen(pattern) > 20){ \
SEGGER_RTT_printf(0,"ivan");}
uint8_t ble_rx_data[20];
static void ble_handler(ble_nus_evt_t* p_evt){
if(p_evt->type == BLE_NUS_EVT_RX_DATA){
SEGGER_RTT_printf(0, "receive: %s\n", p_evt->params.rx_data.p_data);
for (int i = 0; i < p_evt->params.rx_data.length; i++){
ble_rx_data[i] = p_evt->params.rx_data.p_data[i];
}
if(ble_rx_data[0] == 's'){
ble_send_str(ble_rx_data);
}
}
}
void ble_init_m(){
ble_routine(ble_handler);
}
void ble_send_str(uint8_t* data_array){
uint16_t length = strlen((char*) data_array);
ble_send_m(data_array, length);
}
void ble_send_ch(char data){
ble_send_m((uint8_t*)&data, 1);
}
void ble_send_printf1(char* pattern, uint16_t num1){
char result_str[20];
sprintf(result_str, pattern, num1);
ble_send_str((uint8_t*)result_str);
}
void ble_send_printf2(char* pattern, uint16_t num1, uint16_t num2){
char result_str[20];
sprintf(result_str, pattern, num1, num2);
ble_send_str((uint8_t*)result_str);
}
void ble_send_printf3(char* pattern, uint16_t num1, uint16_t num2, uint16_t num3){
char result_str[20];
sprintf(result_str, pattern, num1, num2, num3);
ble_send_str((uint8_t*)result_str);
}
void ble_send_int(int num){
char result_str[20];
sprintf(result_str, "%d", num);
ble_send_str((uint8_t*)result_str);
}
ble_handle.h
#ifndef BLE_HANDLE_H__ #define BLE_HANDLE_H__ #include "ble_main.h" void ble_init_m(void); void ble_send_str (uint8_t* data_array); void ble_send_ch(char data); void ble_send_int(int num); void ble_send_printf1(char* pattern, uint16_t num1); void ble_send_printf2(char* pattern, uint16_t num1, uint16_t num2); void ble_send_printf3(char* pattern, uint16_t num1, uint16_t num2, uint16_t num3); #endif
