我的项目使用 nrf52840 和 Freertos。该项目具有蓝牙广播和扫描功能。Bootloader 不使用 Freertos。当我在 nrf connect 中使用软件升级 DFU 时，DFU 功能没有响应。我使用 Freertos 创建了一个刷新任务，该任务一直在持续运行。未执行 DFU 升级。
我的项目使用 nrf52840 和 Freertos。该项目具有蓝牙广播和扫描功能。Bootloader 不使用 Freertos。当我在 nrf connect 中使用软件升级 DFU 时，DFU 功能没有响应。我使用 Freertos 创建了一个刷新任务，该任务一直在持续运行。未执行 DFU 升级。
My project uses nrf52840 and Freertos. This project has Bluetooth broadcasting and scanning functions. Bootloader does not use Freertos. When I used software to upgrade DFU in nrf connect, the DFU function did not respond. I created a refresh task using Freertos and it has been running continuously. DFU upgrade not performed
Hi,
Which SDK version are you using and how do intend to enter DFU mode? Is it via buttonless DFU (as demonstrated by the buttonless DFU sample), or some other method? What have you found by debugging and observing logs?
/**
* Copyright (c) 2016 - 2021, Nordic Semiconductor ASA
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form, except as embedded into a Nordic
* Semiconductor ASA integrated circuit in a product or a software update for
* such product, must reproduce the above copyright notice, this list of
* conditions and the following disclaimer in the documentation and/or other
* materials provided with the distribution.
*
* 3. Neither the name of Nordic Semiconductor ASA nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* 4. This software, with or without modification, must only be used with a
* Nordic Semiconductor ASA integrated circuit.
*
* 5. Any software provided in binary form under this license must not be reverse
* engineered, decompiled, modified and/or disassembled.
*
* THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#include <stdio.h>
#include <stdint.h>
#include <stdbool.h>
#include "nordic_common.h"
#include "app_error.h"
#include "ble_db_discovery.h"
#include "app_timer.h"
#include "app_util.h"
#include "ble.h"
#include "ble_gap.h"
#include "ble_hci.h"
#include "nrf_sdh.h"
#include "nrf_sdh_ble.h"
#include "nrf_sdh_soc.h"
#include "ble_nus_c.h"
#include "nrf_ble_gatt.h"
#include "nrf_pwr_mgmt.h"
#include "nrf_ble_scan.h"
#include "nrf_log.h"
#include "nrf_log_ctrl.h"
#include "nrf_log_default_backends.h"
#include "ble_hrs_c.h"
#include "ble_conn_state.h"
#include "app.h"
#include "crc.h"
#include "ble_advertising.h"
#include "nrf_ble_qwr.h"
#include "ble_conn_params.h"
#include "nrf_power.h"
#if DFU_SUPPORT
#include "nrf_bootloader_info.h"
#include "ble_dfu.h"
#endif
#include "FreeRTOS.h"
#include "task.h"
#include "queue.h"
#include "nrf_sdh_freertos.h"
#include "TaskRunConfig.h"
/** @brief The maximum number of peripheral and central links combined. */
#define NRF_BLE_LINK_COUNT (NRF_SDH_BLE_PERIPHERAL_LINK_COUNT + NRF_SDH_BLE_CENTRAL_LINK_COUNT)
#define APP_BLE_CONN_CFG_TAG 1 /**< Tag that refers to the BLE stack configuration set with @ref sd_ble_cfg_set. The default tag is @ref BLE_CONN_CFG_TAG_DEFAULT. */
#define DEVICE_NAME "MYtool" /**< Name of device. Will be included in the advertising data. */
#define NUS_SERVICE_UUID_TYPE BLE_UUID_TYPE_VENDOR_BEGIN /**< UUID type for the Nordic UART Service (vendor specific). */
#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 APP_BLE_OBSERVER_PRIO 3 /**< BLE observer priority of the application. There is no need to modify this value. */
#define APP_ADV_INTERVAL 64 /**< The advertising interval (in units of 0.625 ms. This value corresponds to 40 ms). */
#define APP_ADV_DURATION 0 /**< The advertising duration (180 seconds) in units of 10 milliseconds. */
extern QueueHandle_t SendDebugMessageToPC_Queue;
typedef struct
{
bool is_connected;
ble_gap_addr_t address;
} conn_peer_t;
NRF_BLE_GQ_DEF(m_ble_gatt_queue, /**< BLE GATT Queue instance. */
NRF_SDH_BLE_CENTRAL_LINK_COUNT,
NRF_BLE_GQ_QUEUE_SIZE);
NRF_BLE_GATT_DEF(m_gatt); /**< GATT module instance. */
NRF_BLE_QWRS_DEF(m_qwr, NRF_SDH_BLE_TOTAL_LINK_COUNT); /**< Context for the Queued Write module.*/
BLE_ADVERTISING_DEF(m_advertising); /**< Advertising module instance. */
BLE_DB_DISCOVERY_DEF(m_db_disc); /**< Database discovery module instance. */
NRF_BLE_SCAN_DEF(m_scan); /**< Scanning Module instance. */
BLE_NUS_C_DEF(m_ble_nus_c); /**< BLE Nordic UART Service (NUS) client instance. */
static volatile uint16_t m_conn_handle_num_comp_central = BLE_CONN_HANDLE_INVALID; /**< Connection handle for the central that needs a numeric comparison button press. */
static volatile uint16_t m_conn_handle_num_comp_peripheral = BLE_CONN_HANDLE_INVALID; /**< Connection handle for the peripheral that needs a numeric comparison button press. */
static uint16_t m_ble_nus_max_data_len = BLE_GATT_ATT_MTU_DEFAULT - OPCODE_LENGTH - HANDLE_LENGTH; /**< Maximum length of data (in bytes) that can be transmitted to the peer by the Nordic UART service module. */
static conn_peer_t m_connected_peers[NRF_BLE_LINK_COUNT];
static char * roles_str[] =
{
"INVALID_ROLE",
"PERIPHERAL",
"CENTRAL",
};
void scan_start(void);
/**@brief Function for initializing the timer module.
*/
static void timers_init(void)
{
ret_code_t err_code = app_timer_init();
APP_ERROR_CHECK(err_code);
}
/**@brief Function for handling asserts in the SoftDevice.
*
* @details This function is called in case of an assert in the SoftDevice.
*
* @warning This handler is only an example and is not meant for the 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] p_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(0xDEADBEEF, line_num, p_file_name);
}
/**@brief Function for handling Service Client errors.
*
* @param[in] nrf_error Error code containing information about what went wrong.
*/
static void service_error_handler(uint32_t nrf_error)
{
APP_ERROR_HANDLER(nrf_error);
}
/**@brief Function for handling an event from 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(p_evt->conn_handle, BLE_HCI_CONN_INTERVAL_UNACCEPTABLE);
APP_ERROR_CHECK(err_code);
}
}
/**@brief Function for handling errors from the Connection Parameters module.
*
* @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 handling Scanning Module events.
*/
static void scan_evt_handler(scan_evt_t const * p_scan_evt)
{
ret_code_t err_code;
switch(p_scan_evt->scan_evt_id)
{
case NRF_BLE_SCAN_EVT_FILTER_MATCH:
break;
case NRF_BLE_SCAN_EVT_CONNECTING_ERROR:
{
err_code = p_scan_evt->params.connecting_err.err_code;
APP_ERROR_CHECK(err_code);
} break;
case NRF_BLE_SCAN_EVT_CONNECTED:
{
ble_gap_evt_connected_t const * p_connected =
p_scan_evt->params.connected.p_connected;
// Scan is automatically stopped by the connection.
NRF_LOG_INFO("Connecting to target %02x%02x%02x%02x%02x%02x",
p_connected->peer_addr.addr[0],
p_connected->peer_addr.addr[1],
p_connected->peer_addr.addr[2],
p_connected->peer_addr.addr[3],
p_connected->peer_addr.addr[4],
p_connected->peer_addr.addr[5]
);
} break;
case NRF_BLE_SCAN_EVT_SCAN_TIMEOUT:
{
NRF_LOG_INFO("Scan timed out.");
scan_start();
} break;
default:
break;
}
}
/**@brief Function for initializing the scanning and setting the filters.
*/
static void scan_init(void)
{
ret_code_t err_code;
nrf_ble_scan_init_t init_scan;
memset(&init_scan, 0, sizeof(init_scan));
init_scan.connect_if_match = true;
init_scan.conn_cfg_tag = APP_BLE_CONN_CFG_TAG;
err_code = nrf_ble_scan_init(&m_scan, &init_scan, scan_evt_handler);
APP_ERROR_CHECK(err_code);
err_code = nrf_ble_scan_filters_enable(&m_scan, NRF_BLE_SCAN_ADDR_FILTER, false);
APP_ERROR_CHECK(err_code);
}
/**@brief Function to start scanning. */
void scan_start(void)
{
ret_code_t ret;
ret = nrf_ble_scan_start(&m_scan);
APP_ERROR_CHECK(ret);
}
#if DFU_SUPPORT
/**@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);
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,
};
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;
}
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);
}
}
// 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.
*/
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 Function for initializing services that will be used by the application.
*/
static void services_init(void)
{
#if DFU_SUPPORT
uint32_t err_code;
ble_dfu_buttonless_init_t dfus_init = {0};
#endif
#if DFU_SUPPORT
dfus_init.evt_handler = ble_dfu_evt_handler;
err_code = ble_dfu_buttonless_init(&dfus_init);
APP_ERROR_CHECK(err_code);
#endif
}
/**@brief Function for handling characters received by the Nordic UART Service (NUS).
*
* @details This function takes a list of characters of length data_len and prints the characters out on UART.
* If @ref ECHOBACK_BLE_UART_DATA is set, the data is sent back to sender.
*/
static void ble_nus_chars_received_uart_print(uint8_t * p_data, uint16_t data_len)
{
}
/**@brief Callback handling Nordic UART Service (NUS) client events.
*
* @details This function is called to notify the application of NUS client events.
*
* @param[in] p_ble_nus_c NUS client handle. This identifies the NUS client.
* @param[in] p_ble_nus_evt Pointer to the NUS client event.
*/
/**@snippet [Handling events from the ble_nus_c module] */
static void ble_nus_c_evt_handler(ble_nus_c_t * p_ble_nus_c, ble_nus_c_evt_t const * p_ble_nus_evt)
{
ret_code_t err_code;
switch (p_ble_nus_evt->evt_type)
{
case BLE_NUS_C_EVT_DISCOVERY_COMPLETE:
NRF_LOG_INFO("Discovery complete.");
err_code = ble_nus_c_handles_assign(p_ble_nus_c, p_ble_nus_evt->conn_handle, &p_ble_nus_evt->handles);
APP_ERROR_CHECK(err_code);
err_code = ble_nus_c_tx_notif_enable(p_ble_nus_c);
APP_ERROR_CHECK(err_code);
NRF_LOG_INFO("Connected to device with Nordic UART Service.");
break;
case BLE_NUS_C_EVT_NUS_TX_EVT:
ble_nus_chars_received_uart_print(p_ble_nus_evt->p_data, p_ble_nus_evt->data_len);
break;
case BLE_NUS_C_EVT_DISCONNECTED:
NRF_LOG_INFO("Disconnected.");
scan_start();
break;
}
}
/**@brief Function for checking whether a link already exists with a newly connected peer.
*
* @details This function checks whether the newly connected device is already connected.
*
* @param[in] p_connected_evt Bluetooth connected event.
* @return True if the peer's address is found in the list of connected peers,
* false otherwise.
*/
static bool is_already_connected(ble_gap_addr_t const * p_connected_adr)
{
for (uint32_t i = 0; i < NRF_BLE_LINK_COUNT; i++)
{
if (m_connected_peers[i].is_connected)
{
if (m_connected_peers[i].address.addr_type == p_connected_adr->addr_type)
{
if (memcmp(m_connected_peers[i].address.addr,
p_connected_adr->addr,
sizeof(m_connected_peers[i].address.addr)) == 0)
{
return true;
}
}
}
}
return false;
}
/** @brief Function for handling a numeric comparison match request. */
static void on_match_request(uint16_t conn_handle, uint8_t role)
{
// Mark the appropriate conn_handle as pending. The rest is handled on button press.
NRF_LOG_INFO("Press Button 1 to confirm, Button 2 to reject");
if (role == BLE_GAP_ROLE_CENTRAL)
{
m_conn_handle_num_comp_central = conn_handle;
}
else if (role == BLE_GAP_ROLE_PERIPH)
{
m_conn_handle_num_comp_peripheral = conn_handle;
}
}
/**@brief Function for assigning new connection handle to the available instance of QWR module.
*
* @param[in] conn_handle New connection handle.
*/
static void multi_qwr_conn_handle_assign(uint16_t conn_handle)
{
for (uint32_t i = 0; i < NRF_BLE_LINK_COUNT; i++)
{
if (m_qwr[i].conn_handle == BLE_CONN_HANDLE_INVALID)
{
ret_code_t err_code = nrf_ble_qwr_conn_handle_assign(&m_qwr[i], conn_handle);
APP_ERROR_CHECK(err_code);
break;
}
}
}
/**@brief Function for handling BLE Stack events that are common to both the central and peripheral roles.
* @param[in] conn_handle Connection Handle.
* @param[in] p_ble_evt Bluetooth stack event.
*/
static void on_ble_evt(uint16_t conn_handle, ble_evt_t const * p_ble_evt)
{
char passkey[BLE_GAP_PASSKEY_LEN + 1];
uint16_t role = ble_conn_state_role(conn_handle);
switch (p_ble_evt->header.evt_id)
{
case BLE_GAP_EVT_CONNECTED:
m_connected_peers[conn_handle].is_connected = true;
m_connected_peers[conn_handle].address = p_ble_evt->evt.gap_evt.params.connected.peer_addr;
multi_qwr_conn_handle_assign(conn_handle);
break;
case BLE_GAP_EVT_DISCONNECTED:
memset(&m_connected_peers[conn_handle], 0x00, sizeof(m_connected_peers[0]));
break;
case BLE_GAP_EVT_SEC_PARAMS_REQUEST:
NRF_LOG_INFO("%s: BLE_GAP_EVT_SEC_PARAMS_REQUEST", nrf_log_push(roles_str[role]));
break;
case BLE_GAP_EVT_PASSKEY_DISPLAY:
memcpy(passkey, p_ble_evt->evt.gap_evt.params.passkey_display.passkey, BLE_GAP_PASSKEY_LEN);
passkey[BLE_GAP_PASSKEY_LEN] = 0x00;
NRF_LOG_INFO("%s: BLE_GAP_EVT_PASSKEY_DISPLAY: passkey=%s match_req=%d",
nrf_log_push(roles_str[role]),
nrf_log_push(passkey),
p_ble_evt->evt.gap_evt.params.passkey_display.match_request);
if (p_ble_evt->evt.gap_evt.params.passkey_display.match_request)
{
on_match_request(conn_handle, role);
}
break;
case BLE_GAP_EVT_AUTH_KEY_REQUEST:
NRF_LOG_INFO("%s: BLE_GAP_EVT_AUTH_KEY_REQUEST", nrf_log_push(roles_str[role]));
break;
case BLE_GAP_EVT_LESC_DHKEY_REQUEST:
NRF_LOG_INFO("%s: BLE_GAP_EVT_LESC_DHKEY_REQUEST", nrf_log_push(roles_str[role]));
break;
case BLE_GAP_EVT_AUTH_STATUS:
NRF_LOG_INFO("%s: BLE_GAP_EVT_AUTH_STATUS: status=0x%x bond=0x%x lv4: %d kdist_own:0x%x kdist_peer:0x%x",
nrf_log_push(roles_str[role]),
p_ble_evt->evt.gap_evt.params.auth_status.auth_status,
p_ble_evt->evt.gap_evt.params.auth_status.bonded,
p_ble_evt->evt.gap_evt.params.auth_status.sm1_levels.lv4,
*((uint8_t *)&p_ble_evt->evt.gap_evt.params.auth_status.kdist_own),
*((uint8_t *)&p_ble_evt->evt.gap_evt.params.auth_status.kdist_peer));
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,
};
ret_code_t err_code = sd_ble_gap_phy_update(p_ble_evt->evt.gap_evt.conn_handle, &phys);
APP_ERROR_CHECK(err_code);
} break;
default:
// No implementation needed.
break;
}
}
/**@brief Function for handling BLE Stack events that are related to central application.
*
* @details This function keeps the connection handles of central application up-to-date. It
* parses scanning reports, initiates a connection attempt to peripherals when a target UUID
* is found, and manages connection parameter update requests. Additionally, it updates the status
* of LEDs used to report the central application's activity.
*
* @note Since this function updates connection handles, @ref BLE_GAP_EVT_DISCONNECTED events
* must be dispatched to the target application before invoking this function.
*
* @param[in] p_ble_evt Bluetooth stack event.
*/
static void on_ble_central_evt(ble_evt_t const * p_ble_evt)
{
ble_gap_evt_t const * p_gap_evt = &p_ble_evt->evt.gap_evt;
ret_code_t err_code;
ble_gap_evt_adv_report_t const * p_adv_report = &p_ble_evt->evt.gap_evt.params.adv_report;
BaseType_t xHigherPriorityTaskWoken = pdFALSE;
SendToHost ScanEchoResData = {0};
uint8_t xQueueBuffer[SendDebugMessageToPC_QueueLEN] = {0};
switch (p_ble_evt->header.evt_id)
{
// Upon connection, check which peripheral is connected (HR or RSC), initiate DB
// discovery, update LEDs status, and resume scanning, if necessary.
case BLE_GAP_EVT_CONNECTED:
{
// start discovery of services. The NUS Client waits for a discovery result
err_code = ble_db_discovery_start(&m_db_disc, p_ble_evt->evt.gap_evt.conn_handle);
APP_ERROR_CHECK(err_code);
if (ble_conn_state_central_conn_count() < NRF_SDH_BLE_CENTRAL_LINK_COUNT)
{
scan_start();
}
sd_ble_gap_rssi_start(p_gap_evt->conn_handle, 0, 0);
} break; // BLE_GAP_EVT_CONNECTED
// Upon disconnection, reset the connection handle of the peer that disconnected, update
// the status of LEDs, and start scanning again.
case BLE_GAP_EVT_DISCONNECTED:
{
NRF_LOG_INFO("Disconnected. conn_handle: 0x%x, reason: 0x%x",
p_gap_evt->conn_handle,
p_gap_evt->params.disconnected.reason);
if (ble_conn_state_central_conn_count() < NRF_SDH_BLE_CENTRAL_LINK_COUNT)
{
scan_start();
}
} break; // BLE_GAP_EVT_DISCONNECTED
case BLE_GAP_EVT_TIMEOUT:
{
// Timeout for scanning is not specified, so only connection attemps can time out.
if (p_gap_evt->params.timeout.src == BLE_GAP_TIMEOUT_SRC_CONN)
{
NRF_LOG_DEBUG("CENTRAL: Connection Request timed out.");
}
} break;
case BLE_GAP_EVT_CONN_PARAM_UPDATE_REQUEST:
{
// Accept parameters requested by peer.
err_code = sd_ble_gap_conn_param_update(p_gap_evt->conn_handle,
&p_gap_evt->params.conn_param_update_request.conn_params);
APP_ERROR_CHECK(err_code);
} break;
case BLE_GATTC_EVT_TIMEOUT:
// Disconnect on GATT Client timeout event.
NRF_LOG_DEBUG("CENTRAL: 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("CENTRAL: 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;
case BLE_GAP_EVT_ADV_REPORT:
break;
default:
// No implementation needed.
break;
}
}
/**@brief Function for handling BLE Stack events that involves peripheral applications. Manages the
* LEDs used to report the status of the peripheral applications.
*
* @param[in] p_ble_evt Bluetooth stack event.
*/
static void on_ble_peripheral_evt(ble_evt_t const * p_ble_evt)
{
ret_code_t err_code;
switch (p_ble_evt->header.evt_id)
{
case BLE_GAP_EVT_CONNECTED:
NRF_LOG_INFO("PERIPHERAL: Connected, handle %d.", p_ble_evt->evt.gap_evt.conn_handle);
break;
case BLE_GAP_EVT_DISCONNECTED:
NRF_LOG_INFO("PERIPHERAL: Disconnected, handle %d, reason 0x%x.",
p_ble_evt->evt.gap_evt.conn_handle,
p_ble_evt->evt.gap_evt.params.disconnected.reason);
// LED indication will be changed when advertising starts.
break;
case BLE_GATTC_EVT_TIMEOUT:
// Disconnect on GATT Client timeout event.
NRF_LOG_DEBUG("PERIPHERAL: 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("PERIPHERAL: 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 putting the chip into sleep mode.
*
* @note This function will not return.
*/
static void sleep_mode_enter(void)
{
uint32_t err_code;
// Prepare wakeup buttons.
#if DFU_SUPPORT
//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);
#else
// Go to system-off mode (this function will not return; wakeup will cause a reset).
err_code = sd_power_system_off();
APP_ERROR_CHECK(err_code);
#endif
}
/**@brief Function for handling advertising events.
*
* @param[in] ble_adv_evt Advertising event.
*/
static void on_adv_evt(ble_adv_evt_t ble_adv_evt)
{
switch (ble_adv_evt)
{
case BLE_ADV_EVT_FAST:
break;
case BLE_ADV_EVT_IDLE:
sleep_mode_enter();
break;
default:
// No implementation needed.
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)
{
uint16_t conn_handle = p_ble_evt->evt.gap_evt.conn_handle;
uint16_t role = ble_conn_state_role(conn_handle);
if ( (p_ble_evt->header.evt_id == BLE_GAP_EVT_CONNECTED)
&& (is_already_connected(&p_ble_evt->evt.gap_evt.params.connected.peer_addr)))
{
NRF_LOG_INFO("%s: Already connected to this device as %s (handle: %d), disconnecting.",
(role == BLE_GAP_ROLE_PERIPH) ? "PERIPHERAL" : "CENTRAL",
(role == BLE_GAP_ROLE_PERIPH) ? "CENTRAL" : "PERIPHERAL",
conn_handle);
(void)sd_ble_gap_disconnect(conn_handle, BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION);
// Do not process the event further.
return;
}
on_ble_evt(conn_handle, p_ble_evt);
if (role == BLE_GAP_ROLE_PERIPH)
{
// Manages peripheral LEDs.
on_ble_peripheral_evt(p_ble_evt);
}
else if ((role == BLE_GAP_ROLE_CENTRAL) || (p_ble_evt->header.evt_id == BLE_GAP_EVT_ADV_REPORT))
{
on_ble_central_evt(p_ble_evt);
}
}
/**@brief Function for initializing the Nordic UART Service (NUS) client. */
static void nus_c_init(void)
{
ret_code_t err_code;
ble_nus_c_init_t init;
init.evt_handler = ble_nus_c_evt_handler;
init.error_handler = service_error_handler;
init.p_gatt_queue = &m_ble_gatt_queue;
err_code = ble_nus_c_init(&m_ble_nus_c, &init);
APP_ERROR_CHECK(err_code);
}
/**@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);
// Register a handler for BLE events.
NRF_SDH_BLE_OBSERVER(m_ble_observer, APP_BLE_OBSERVER_PRIO, ble_evt_handler, NULL);
}
/**@brief Function for initializing the GAP.
*
* @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)
{
ret_code_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);
memset(&gap_conn_params, 0, sizeof(gap_conn_params));
gap_conn_params = m_scan.conn_params;
err_code = sd_ble_gap_ppcp_set(&gap_conn_params);
APP_ERROR_CHECK(err_code);
}
/**@brief Function for handling events from the GATT library. */
void gatt_evt_handler(nrf_ble_gatt_t * p_gatt, nrf_ble_gatt_evt_t const * p_evt)
{
if (p_evt->evt_id == NRF_BLE_GATT_EVT_ATT_MTU_UPDATED)
{
NRF_LOG_INFO("ATT MTU exchange completed.");
m_ble_nus_max_data_len = p_evt->params.att_mtu_effective - OPCODE_LENGTH - HANDLE_LENGTH;
NRF_LOG_INFO("Ble NUS max data length set to 0x%X(%d)", m_ble_nus_max_data_len, m_ble_nus_max_data_len);
}
}
/**@brief Function for initializing the GATT library. */
void gatt_init(void)
{
ret_code_t err_code;
err_code = nrf_ble_gatt_init(&m_gatt, gatt_evt_handler);
APP_ERROR_CHECK(err_code);
err_code = nrf_ble_gatt_att_mtu_central_set(&m_gatt, NRF_SDH_BLE_GATT_MAX_MTU_SIZE);
APP_ERROR_CHECK(err_code);
}
/**@brief Function for handling Queued Write Module errors.
*
* @details A pointer to this function is passed to each service that 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);
}
/**@brief Function for initializing the Queued Write instances.
*/
static void qwr_init(void)
{
ret_code_t err_code;
nrf_ble_qwr_init_t qwr_init_obj = {0};
qwr_init_obj.error_handler = nrf_qwr_error_handler;
for (uint32_t i = 0; i < NRF_BLE_LINK_COUNT; i++)
{
err_code = nrf_ble_qwr_init(&m_qwr[i], &qwr_init_obj);
APP_ERROR_CHECK(err_code);
}
}
/**@brief Function for initializing the Connection Parameters module. */
static void conn_params_init(void)
{
ret_code_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; // Start upon connection.
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 handling database discovery events.
*
* @details This function is a callback function to handle events from the database discovery module.
* Depending on the UUIDs that are discovered, this function forwards the events
* to their respective services.
*
* @param[in] p_event Pointer to the database discovery event.
*/
static void db_disc_handler(ble_db_discovery_evt_t * p_evt)
{
ble_nus_c_on_db_disc_evt(&m_ble_nus_c, p_evt);
}
/** @brief Function for initializing the database discovery module. */
static void db_discovery_init(void)
{
ble_db_discovery_init_t db_init;
memset(&db_init, 0, sizeof(ble_db_discovery_init_t));
db_init.evt_handler = db_disc_handler;
db_init.p_gatt_queue = &m_ble_gatt_queue;
ret_code_t err_code = ble_db_discovery_init(&db_init);
APP_ERROR_CHECK(err_code);
}
/**@brief Function for initializing the advertising functionality. */
static void advertising_init(void)
{
ret_code_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.config.ble_adv_fast_enabled = true;
init.config.ble_adv_fast_interval = APP_ADV_INTERVAL;
init.config.ble_adv_fast_timeout = APP_ADV_DURATION;
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 the timer. */
static void timer_init(void)
{
ret_code_t err_code = app_timer_init();
APP_ERROR_CHECK(err_code);
}
/**@brief Function for initializing power management.
*/
static void power_management_init(void)
{
ret_code_t err_code;
err_code = nrf_pwr_mgmt_init();
APP_ERROR_CHECK(err_code);
}
/**@brief Function for handling the idle state (main loop).
*
* @details Handles any pending log operations, then sleeps until the next event occurs.
*/
static void idle_state_handle(void)
{
if (NRF_LOG_PROCESS() == false)
{
nrf_pwr_mgmt_run();
}
}
/**@brief Function for starting advertising.
*/
static void advertising_start(void)
{
uint32_t err_code = ble_advertising_start(&m_advertising, BLE_ADV_MODE_FAST);
APP_ERROR_CHECK(err_code);
}
int main(void)
{
bool erase_bonds;
#if DFU_SUPPORT
uint32_t err_code;
err_code = ble_dfu_buttonless_async_svci_init();
APP_ERROR_CHECK(err_code);
#endif
// Initialize.
timer_init();
uart_init();
power_management_init();
ble_stack_init();
scan_init();
gap_params_init();
gatt_init();
conn_params_init();
db_discovery_init();
qwr_init();
services_init();
nus_c_init();
advertising_init();
// Start execution.
NRF_LOG_INFO("BLE UART central example started.");
nrf_sdh_freertos_init(advertising_start, &erase_bonds);
vTaskStartScheduler();
// Enter main loop.
for (;;)
{
APP_ERROR_HANDLER(NRF_ERROR_FORBIDDEN);
}
}
I am using SEGGER Embedded Studio for ARM 5.42a IDE。
c_preprocessor_definitions="BOARD_PCA10056;CONFIG_GPIO_AS_PINRESET;FLOAT_ABI_HARD;INITIALIZE_USER_SECTIONS;NO_VTOR_CONFIG;NRF52840_XXAA;NRF_SD_BLE_API_VERSION=7;S140;SOFTDEVICE_PRESENT;BL_SETTINGS_ACCESS_ONLY;NRF_DFU_SVCI_ENABLED;NRF_DFU_TRANSPORT_BLE=1;CONFIG_NFCT_PINS_AS_GPIOS;FREERTOS;"
I have very few modification points, and I have uploaded most of the changes I made. It shouldn't be an issue with the bootloader. When I was working today, I tested the Bluetooth slave+freertos demo and it can be upgraded。
demo nrf5_sdk_17.1.0_ddde560\examples\ble_peripheral\ble_app_hrs_freertos+nrf5_sdk_17.1.0_ddde560\examples\ble_peripheral\ble_app_buttonless_dfu。
Hi,
I do not see DFU_SUPPORT in the list of preprocessor defines, and you use that in the code to decide if the code related to buttonless DFU should be included. So if you have not defined it, it is expecrted that it does not work. So please define it, rebuild and test again. If it does not work, please share in detail how you test and what you have found by testing.
By comparison, I have defined it in another file but did not upload it, # define DFU_SUPPORT 1
Is it defined in a header file that is inlcuded in your main.c? If not, it has no effect.
Yes, it is included in my main. c, and this definition works. Due to confidentiality reasons, I have deleted all irrelevant and brief information. Sorry.
Yes, it is included in my main. c, and this definition works. Due to confidentiality reasons, I have deleted all irrelevant and brief information. Sorry.
I see. I cannot say more at this point then, you need to share details about how you test and how you debug and which results you get.
I forgot to take a screenshot. I used Wireshark to capture and found that when using the DFU service to upload files, there was a display indicating retrieval failure. And then it ended, the app didn't show the upgrade rate chart, it was always empty packets sent by the master and slave. You should be able to quickly reproduce the problem I mentioned using the files I provided.
2248.examples.zipThis is a simple demo I built. I tested that it can be upgraded using the mobile APP, but cannot be upgraded using the PC software.You can test it by directly replacing it with the SDK
Hi,
Thank you for the sample. I am able to reproduce it with that sample. DFU works with an iPhone, but not with nRF Connect for Desktop. If I test with the buttonless DFK sample from SDK 17.1.0, I can perform buttonless DFU also from nRF Connect for dekstop.
The probelm is not in the bootloader, but the device does not enter DFU mode. From nRF Connect for Dekstop you can see a GATT timeout, and this is also visible in the attached sniffer traces: 0842.traces.zip.
I have not been able to see what causes this issue yet though. Have you had any progress on your end?