Without FreeRTOS usbd working normaly with config:
#define NRF_SDH_DISPATCH_MODEL 0
#define APP_SCHEDULER_ENABLED 1
But with FreeRTOS need use
#define NRF_SDH_DISPATCH_MODEL 2
else it has errror
Error[Li006]: duplicate definitions for "SWI2_EGU2_IRQHandler"
How to solve this problem? What methods of USB need polling for working with FreeRTOS?
I'm use SDK15 and S140 v.6.0.0 Production
Error[Li006]: duplicate definitions for "SWI2_EGU2_IRQHandler"
How to solve this problem? What methods of USB need polling for working with FreeRTOS?
This is not a problem. See the description of NRF_SDH_DISPATCH_MODEL_POOLING:
/**@brief SoftDevice events are polled manually using @ref nrf_sdh_evts_poll(). * * @note In this mode, a user application can also implement SD_EVT_IRQHandler() to receive a * notification about incoming events. */ #define NRF_SDH_DISPATCH_MODEL_POLLING 2
This is not an USB requirement - it is an SDH implementation in FreeRTOS. This configuration is required for SDH module to remove interrupt implementation. It means that after that you may use pool to check the SD status or you may implement your own interrupt implementation. This is something that is done inside nrf_sdh_freertos.c.
We are going to provide an example with SoftDevice, together with USBD and working using FreeRTOS.
???
???
Hi, this is part from pre 15.1 repository.
First of all you have to change nrf_drv_power.c file a little. We could not do it, but it helps to write clean code next:
ret_code_t nrf_drv_power_init(nrf_drv_power_config_t const * p_config)
{
#ifdef SOFTDEVICE_PRESENT
+ if (m_initialized)
+ {
+ return NRF_ERROR_MODULE_ALREADY_INITIALIZED;
+ }
if (nrf_sdh_is_enabled())
{
return NRF_ERROR_INVALID_STATE;
}
#endif
Then the main.c goes:
/**
* Copyright (c) 2017 - 2018, 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.
*
*/
/** @file
*
* @defgroup usbd_ble_uart_freertos_example main.c
* @{
* @brief USBD CDC ACM over BLE using FreeRTOS application main file.
*
* This file contains the source code for a sample application that uses the Nordic UART service
* and USBD CDC ACM library and runs using FreeRTOS.
* This application uses the @ref srvlib_conn_params module.
*/
#include <stdint.h>
#include <string.h>
#include "nordic_common.h"
#include "nrf.h"
#include "ble_hci.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 "nrf_sdh_freertos.h"
#include "nrf_ble_gatt.h"
#include "app_timer.h"
#include "ble_nus.h"
#include "app_uart.h"
#include "app_util_platform.h"
#include "bsp_btn_ble.h"
#include "nrf_log.h"
#include "nrf_log_ctrl.h"
#include "nrf_log_default_backends.h"
#include "nrf_drv_usbd.h"
#include "nrf_drv_clock.h"
#include "nrf_gpio.h"
#include "nrf_delay.h"
#include "nrf_drv_power.h"
#include "app_error.h"
#include "app_util.h"
#include "app_usbd_core.h"
#include "app_usbd.h"
#include "app_usbd_string_desc.h"
#include "app_usbd_cdc_acm.h"
#include "app_usbd_serial_num.h"
/* FreeRTOS related */
#include "FreeRTOS.h"
#include "task.h"
#include "semphr.h"
/**
* The size of the stack for the Logger task (in 32-bit words).
* Logger uses sprintf internally so it is a rather stack hungry process.
*/
#define LOGGER_STACK_SIZE 512
/**
* The size of the stack for the USB task (in 32-bit words).
*/
#define USBD_STACK_SIZE 256
/**
* The priority of the Logger task.
*/
#define LOGGER_PRIORITY 1
/**
* The priority of the USBD task.
*/
#define USBD_PRIORITY 2
/**
* The maximum delay inside the USB task to wait for an event.
*/
#define USB_THREAD_MAX_BLOCK_TIME portMAX_DELAY
#define LED_BLE_NUS_CONN (BSP_BOARD_LED_0)
#define LED_BLE_NUS_RX (BSP_BOARD_LED_1)
#define LED_CDC_ACM_CONN (BSP_BOARD_LED_2)
#define LED_CDC_ACM_RX (BSP_BOARD_LED_3)
#define LED_BLINK_INTERVAL 800
APP_TIMER_DEF(m_blink_ble);
APP_TIMER_DEF(m_blink_cdc);
static TaskHandle_t m_usbd_thread; /**< USB stack thread. */
#if NRF_LOG_ENABLED
static TaskHandle_t m_logger_thread; /**< Logger thread. */
#endif
/**
* @brief App timer handler for blinking the LEDs.
*
* @param p_context LED to blink.
*/
void blink_handler(void * p_context)
{
bsp_board_led_invert((uint32_t) p_context);
}
#define ENDLINE_STRING "\r\n"
// USB DEFINES START
static void cdc_acm_user_ev_handler(app_usbd_class_inst_t const * p_inst,
app_usbd_cdc_acm_user_event_t event);
#define CDC_ACM_COMM_INTERFACE 0
#define CDC_ACM_COMM_EPIN NRF_DRV_USBD_EPIN2
#define CDC_ACM_DATA_INTERFACE 1
#define CDC_ACM_DATA_EPIN NRF_DRV_USBD_EPIN1
#define CDC_ACM_DATA_EPOUT NRF_DRV_USBD_EPOUT1
static char m_cdc_data_array[BLE_NUS_MAX_DATA_LEN];
/** @brief CDC_ACM class instance. */
APP_USBD_CDC_ACM_GLOBAL_DEF(m_app_cdc_acm,
cdc_acm_user_ev_handler,
CDC_ACM_COMM_INTERFACE,
CDC_ACM_DATA_INTERFACE,
CDC_ACM_COMM_EPIN,
CDC_ACM_DATA_EPIN,
CDC_ACM_DATA_EPOUT,
APP_USBD_CDC_COMM_PROTOCOL_AT_V250);
// USB DEFINES END
// BLE DEFINES START
#define APP_BLE_CONN_CFG_TAG 1 /**< A tag identifying the SoftDevice BLE configuration. */
#define APP_FEATURE_NOT_SUPPORTED BLE_GATT_STATUS_ATTERR_APP_BEGIN + 2 /**< Reply when unsupported features are requested. */
#define DEVICE_NAME "Nordic_USBD_BLE_UART" /**< 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 APP_BLE_OBSERVER_PRIO 3 /**< Application's BLE observer priority. You shouldn't 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 18000 /**< The advertising duration (180 seconds) in units of 10 milliseconds. */
#define MIN_CONN_INTERVAL MSEC_TO_UNITS(20, UNIT_1_25_MS) /**< Minimum acceptable connection interval (20 ms). Connection interval uses 1.25 ms units. */
#define MAX_CONN_INTERVAL MSEC_TO_UNITS(75, UNIT_1_25_MS) /**< Maximum acceptable connection interval (75 ms). Connection interval uses 1.25 ms units. */
#define SLAVE_LATENCY 0 /**< Slave latency. */
#define CONN_SUP_TIMEOUT MSEC_TO_UNITS(4000, UNIT_10_MS) /**< Connection supervisory timeout (4 seconds). Supervision Timeout uses 10 ms units. */
#define FIRST_CONN_PARAMS_UPDATE_DELAY APP_TIMER_TICKS(5000) /**< Time from initiating an event (connect or start of notification) to the 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 DEAD_BEEF 0xDEADBEEF /**< Value used as error code on stack dump. Can be used to identify stack location on stack unwind. */
#define UART_TX_BUF_SIZE 256 /**< UART TX buffer size. */
#define UART_RX_BUF_SIZE 256 /**< UART RX buffer size. */
BLE_NUS_DEF(m_nus, NRF_SDH_BLE_TOTAL_LINK_COUNT); /**< BLE NUS service instance. */
NRF_BLE_GATT_DEF(m_gatt); /**< GATT module instance. */
BLE_ADVERTISING_DEF(m_advertising); /**< Advertising module instance. */
static uint16_t m_conn_handle = BLE_CONN_HANDLE_INVALID; /**< Handle of the current connection. */
static uint16_t m_ble_nus_max_data_len = BLE_GATT_ATT_MTU_DEFAULT - 3; /**< Maximum length of data (in bytes) that can be transmitted to the peer by the Nordic UART service module. */
static ble_uuid_t m_adv_uuids[] = /**< Universally unique service identifier. */
{
{BLE_UUID_NUS_SERVICE, NUS_SERVICE_UUID_TYPE}
};
static char m_nus_data_array[BLE_NUS_MAX_DATA_LEN];
// BLE DEFINES END
/**
* @brief Function for assert macro callback.
*
* @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 an 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(DEAD_BEEF, line_num, p_file_name);
}
/** @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);
err_code = app_timer_create(&m_blink_ble, APP_TIMER_MODE_REPEATED, blink_handler);
APP_ERROR_CHECK(err_code);
err_code = app_timer_create(&m_blink_cdc, APP_TIMER_MODE_REPEATED, blink_handler);
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. It also sets the permissions and appearance.
*/
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);
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 the data from the Nordic UART Service.
*
* @details This function processes the data received from the Nordic UART BLE Service and sends
* it to the USBD CDC ACM module.
*
* @param[in] p_evt Nordic UART Service event.
*/
static void nus_data_handler(ble_nus_evt_t * p_evt)
{
if (p_evt->type == BLE_NUS_EVT_RX_DATA)
{
bsp_board_led_invert(LED_BLE_NUS_RX);
NRF_LOG_DEBUG("Received data from BLE NUS. Writing data on CDC ACM.");
NRF_LOG_HEXDUMP_DEBUG(p_evt->params.rx_data.p_data, p_evt->params.rx_data.length);
memcpy(m_nus_data_array, p_evt->params.rx_data.p_data, p_evt->params.rx_data.length);
// Add endline characters
uint16_t length = p_evt->params.rx_data.length;
if (length + sizeof(ENDLINE_STRING) < BLE_NUS_MAX_DATA_LEN)
{
memcpy(m_nus_data_array + length, ENDLINE_STRING, sizeof(ENDLINE_STRING));
length += sizeof(ENDLINE_STRING);
}
// Send data through CDC ACM
ret_code_t ret = app_usbd_cdc_acm_write(&m_app_cdc_acm,
m_nus_data_array,
length);
if(ret != NRF_SUCCESS)
{
NRF_LOG_INFO("CDC ACM unavailable, data received: %s", m_nus_data_array);
}
}
}
/** @brief Function for initializing services that will be used by the application. */
static void services_init(void)
{
uint32_t err_code;
ble_nus_init_t nus_init;
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 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 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 = true;
cp_init.evt_handler = NULL;
cp_init.error_handler = conn_params_error_handler;
err_code = ble_conn_params_init(&cp_init);
APP_ERROR_CHECK(err_code);
}
/**
* @brief Function for putting the chip into sleep mode.
*
* @note This function does 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);
// 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);
}
/**@brief Function for starting advertising. */
static void advertising_start(void * p_context)
{
UNUSED_PARAMETER(p_context);
uint32_t err_code = ble_advertising_start(&m_advertising, BLE_ADV_MODE_FAST);
APP_ERROR_CHECK(err_code);
}
/**
* @brief Function for handling advertising events.
*
* @details This function is 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 = app_timer_start(m_blink_ble,
APP_TIMER_TICKS(LED_BLINK_INTERVAL),
(void *) LED_BLE_NUS_CONN);
APP_ERROR_CHECK(err_code);
break;
case BLE_ADV_EVT_IDLE:
NRF_LOG_INFO("Advertising timeout, restarting.")
advertising_start(NULL);
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;
switch (p_ble_evt->header.evt_id)
{
case BLE_GAP_EVT_CONNECTED:
NRF_LOG_INFO("BLE NUS connected");
err_code = app_timer_stop(m_blink_ble);
APP_ERROR_CHECK(err_code);
bsp_board_led_on(LED_BLE_NUS_CONN);
m_conn_handle = p_ble_evt->evt.gap_evt.conn_handle;
break;
case BLE_GAP_EVT_DISCONNECTED:
NRF_LOG_INFO("BLE NUS disconnected");
// LED indication will be changed when advertising starts.
m_conn_handle = BLE_CONN_HANDLE_INVALID;
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_GAP_EVT_SEC_PARAMS_REQUEST:
// Pairing not supported.
err_code = sd_ble_gap_sec_params_reply(m_conn_handle, BLE_GAP_SEC_STATUS_PAIRING_NOT_SUPP, NULL, NULL);
APP_ERROR_CHECK(err_code);
break;
case BLE_GAP_EVT_DATA_LENGTH_UPDATE_REQUEST:
{
ble_gap_data_length_params_t dl_params;
// Clearing the struct will effectively set members to @ref BLE_GAP_DATA_LENGTH_AUTO.
memset(&dl_params, 0, sizeof(ble_gap_data_length_params_t));
err_code = sd_ble_gap_data_length_update(p_ble_evt->evt.gap_evt.conn_handle, &dl_params, NULL);
APP_ERROR_CHECK(err_code);
} break;
case BLE_GATTS_EVT_SYS_ATTR_MISSING:
// No system attributes have been stored.
err_code = sd_ble_gatts_sys_attr_set(m_conn_handle, NULL, 0, 0);
APP_ERROR_CHECK(err_code);
break;
case BLE_GATTC_EVT_TIMEOUT:
// Disconnect on GATT Client timeout event.
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.
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_EVT_USER_MEM_REQUEST:
err_code = sd_ble_user_mem_reply(p_ble_evt->evt.gattc_evt.conn_handle, NULL);
APP_ERROR_CHECK(err_code);
break;
case BLE_GATTS_EVT_RW_AUTHORIZE_REQUEST:
{
ble_gatts_evt_rw_authorize_request_t req;
ble_gatts_rw_authorize_reply_params_t auth_reply;
req = p_ble_evt->evt.gatts_evt.params.authorize_request;
if (req.type != BLE_GATTS_AUTHORIZE_TYPE_INVALID)
{
if ((req.request.write.op == BLE_GATTS_OP_PREP_WRITE_REQ) ||
(req.request.write.op == BLE_GATTS_OP_EXEC_WRITE_REQ_NOW) ||
(req.request.write.op == BLE_GATTS_OP_EXEC_WRITE_REQ_CANCEL))
{
if (req.type == BLE_GATTS_AUTHORIZE_TYPE_WRITE)
{
auth_reply.type = BLE_GATTS_AUTHORIZE_TYPE_WRITE;
}
else
{
auth_reply.type = BLE_GATTS_AUTHORIZE_TYPE_READ;
}
auth_reply.params.write.gatt_status = APP_FEATURE_NOT_SUPPORTED;
err_code = sd_ble_gatts_rw_authorize_reply(p_ble_evt->evt.gatts_evt.conn_handle,
&auth_reply);
APP_ERROR_CHECK(err_code);
}
}
} break; // BLE_GATTS_EVT_RW_AUTHORIZE_REQUEST
default:
// No implementation needed.
break;
}
}
/**
* @brief Function for the SoftDevice initialization.
*
* @details This function 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 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 ((m_conn_handle == p_evt->conn_handle) && (p_evt->evt_id == NRF_BLE_GATT_EVT_ATT_MTU_UPDATED))
{
m_ble_nus_max_data_len = p_evt->params.att_mtu_effective - OPCODE_LENGTH - HANDLE_LENGTH;
NRF_LOG_INFO("Data len is set to 0x%X(%d)", m_ble_nus_max_data_len, m_ble_nus_max_data_len);
}
NRF_LOG_DEBUG("ATT MTU exchange completed. central 0x%x peripheral 0x%x",
p_gatt->att_mtu_desired_central,
p_gatt->att_mtu_desired_periph);
}
/** @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_periph_set(&m_gatt, 64);
APP_ERROR_CHECK(err_code);
}
/**
* @brief Function for handling events from the BSP module.
*
* @param[in] event Event generated by button press.
*/
void bsp_event_handler(bsp_event_t event)
{
uint32_t err_code;
switch (event)
{
case BSP_EVENT_SLEEP:
sleep_mode_enter();
break;
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;
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;
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 = false;
init.advdata.flags = BLE_GAP_ADV_FLAGS_LE_ONLY_LIMITED_DISC_MODE;
init.srdata.uuids_complete.uuid_cnt = sizeof(m_adv_uuids) / sizeof(m_adv_uuids[0]);
init.srdata.uuids_complete.p_uuids = m_adv_uuids;
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 buttons and LEDs. */
static void buttons_leds_init(void)
{
uint32_t err_code = bsp_init(BSP_INIT_LEDS, bsp_event_handler);
APP_ERROR_CHECK(err_code);
}
/** @brief Function for initializing the nrf_log module. */
static void log_init(void)
{
ret_code_t err_code = NRF_LOG_INIT(NULL);
APP_ERROR_CHECK(err_code);
NRF_LOG_DEFAULT_BACKENDS_INIT();
}
// USB CODE START
static bool m_usb_connected = false;
/** @brief User event handler @ref app_usbd_cdc_acm_user_ev_handler_t */
static void cdc_acm_user_ev_handler(app_usbd_class_inst_t const * p_inst,
app_usbd_cdc_acm_user_event_t event)
{
app_usbd_cdc_acm_t const * p_cdc_acm = app_usbd_cdc_acm_class_get(p_inst);
switch (event)
{
case APP_USBD_CDC_ACM_USER_EVT_PORT_OPEN:
{
/*Set up the first transfer*/
ret_code_t ret = app_usbd_cdc_acm_read(&m_app_cdc_acm,
m_cdc_data_array,
1);
UNUSED_VARIABLE(ret);
ret = app_timer_stop(m_blink_cdc);
APP_ERROR_CHECK(ret);
bsp_board_led_on(LED_CDC_ACM_CONN);
NRF_LOG_INFO("CDC ACM port opened");
break;
}
case APP_USBD_CDC_ACM_USER_EVT_PORT_CLOSE:
NRF_LOG_INFO("CDC ACM port closed");
if (m_usb_connected)
{
ret_code_t ret = app_timer_start(m_blink_cdc,
APP_TIMER_TICKS(LED_BLINK_INTERVAL),
(void *) LED_CDC_ACM_CONN);
APP_ERROR_CHECK(ret);
}
break;
case APP_USBD_CDC_ACM_USER_EVT_TX_DONE:
break;
case APP_USBD_CDC_ACM_USER_EVT_RX_DONE:
{
ret_code_t ret;
static uint8_t index = 0;
index++;
do
{
if ((m_cdc_data_array[index - 1] == '\r') || (index >= (m_ble_nus_max_data_len)))
{
bsp_board_led_invert(LED_CDC_ACM_RX);
NRF_LOG_DEBUG("Ready to send data over BLE NUS");
NRF_LOG_HEXDUMP_DEBUG(m_cdc_data_array, index);
do
{
uint16_t length = (uint16_t)index;
if (length + sizeof(ENDLINE_STRING) < BLE_NUS_MAX_DATA_LEN)
{
memcpy(m_cdc_data_array + length, ENDLINE_STRING, sizeof(ENDLINE_STRING));
length += sizeof(ENDLINE_STRING);
}
ret = ble_nus_data_send(&m_nus,
(uint8_t *) m_cdc_data_array,
&length,
m_conn_handle);
if (ret == NRF_ERROR_NOT_FOUND)
{
NRF_LOG_INFO("BLE NUS unavailable, data received: %s", m_cdc_data_array);
break;
}
if (ret == NRF_ERROR_RESOURCES)
{
NRF_LOG_ERROR("BLE NUS Too many notifications queued.");
break;
}
if ((ret != NRF_ERROR_INVALID_STATE) && (ret != NRF_ERROR_BUSY))
{
APP_ERROR_CHECK(ret);
}
}
while (ret == NRF_ERROR_BUSY);
index = 0;
}
/*Get amount of data transferred*/
size_t size = app_usbd_cdc_acm_rx_size(p_cdc_acm);
NRF_LOG_DEBUG("RX: size: %lu char: %c", size, m_cdc_data_array[index - 1]);
/* Fetch data until internal buffer is empty */
ret = app_usbd_cdc_acm_read(&m_app_cdc_acm,
&m_cdc_data_array[index],
1);
if (ret == NRF_SUCCESS)
{
index++;
}
}
while (ret == NRF_SUCCESS);
break;
}
default:
break;
}
}
static void usbd_user_ev_handler(app_usbd_event_type_t event)
{
switch (event)
{
case APP_USBD_EVT_DRV_SUSPEND:
break;
case APP_USBD_EVT_DRV_RESUME:
break;
case APP_USBD_EVT_STARTED:
break;
case APP_USBD_EVT_STOPPED:
app_usbd_disable();
break;
case APP_USBD_EVT_POWER_DETECTED:
NRF_LOG_INFO("USB power detected");
if (!nrf_drv_usbd_is_enabled())
{
app_usbd_enable();
}
break;
case APP_USBD_EVT_POWER_REMOVED:
{
NRF_LOG_INFO("USB power removed");
ret_code_t err_code = app_timer_stop(m_blink_cdc);
APP_ERROR_CHECK(err_code);
bsp_board_led_off(LED_CDC_ACM_CONN);
m_usb_connected = false;
app_usbd_stop();
}
break;
case APP_USBD_EVT_POWER_READY:
{
NRF_LOG_INFO("USB ready");
ret_code_t err_code = app_timer_start(m_blink_cdc,
APP_TIMER_TICKS(LED_BLINK_INTERVAL),
(void *) LED_CDC_ACM_CONN);
APP_ERROR_CHECK(err_code);
m_usb_connected = true;
app_usbd_start();
}
break;
default:
break;
}
}
void usb_new_event_isr_handler(app_usbd_internal_evt_t const * const p_event, bool queued)
{
BaseType_t xHigherPriorityTaskWoken = pdFALSE;
UNUSED_PARAMETER(p_event);
UNUSED_PARAMETER(queued);
ASSERT(m_usbd_thread != NULL);
/* Release the semaphore */
vTaskNotifyGiveFromISR(m_usbd_thread, &xHigherPriorityTaskWoken);
portYIELD_FROM_ISR(xHigherPriorityTaskWoken);
}
static void usbd_thread(void * arg)
{
ret_code_t ret;
static const app_usbd_config_t usbd_config = {
.ev_isr_handler = usb_new_event_isr_handler,
.ev_state_proc = usbd_user_ev_handler
};
UNUSED_PARAMETER(arg);
ret = app_usbd_init(&usbd_config);
APP_ERROR_CHECK(ret);
app_usbd_class_inst_t const * class_cdc_acm = app_usbd_cdc_acm_class_inst_get(&m_app_cdc_acm);
ret = app_usbd_class_append(class_cdc_acm);
APP_ERROR_CHECK(ret);
ret = app_usbd_power_events_enable();
APP_ERROR_CHECK(ret);
// Set the first event to make sure that USB queue is processed after it is started
UNUSED_RETURN_VALUE(xTaskNotifyGive(xTaskGetCurrentTaskHandle()));
// Enter main loop.
for (;;)
{
/* Waiting for event */
UNUSED_RETURN_VALUE(ulTaskNotifyTake(pdTRUE, USB_THREAD_MAX_BLOCK_TIME));
while (app_usbd_event_queue_process())
{
/* Nothing to do */
}
}
}
// USB CODE END
#if NRF_LOG_ENABLED
/**@brief Thread for handling the logger.
*
* @details This thread is responsible for processing log entries if logs are deferred.
* Thread flushes all log entries and suspends. It is resumed by idle task hook.
*
* @param[in] arg Pointer used for passing some arbitrary information (context) from the
* osThreadCreate() call to the thread.
*/
static void logger_thread(void * arg)
{
UNUSED_PARAMETER(arg);
while (1)
{
NRF_LOG_FLUSH();
vTaskSuspend(NULL); // Suspend myself
}
}
#endif //NRF_LOG_ENABLED
/**@brief A function which is hooked to idle task.
* @note Idle hook must be enabled in FreeRTOS configuration (configUSE_IDLE_HOOK).
*/
void vApplicationIdleHook( void )
{
#if NRF_LOG_ENABLED
vTaskResume(m_logger_thread);
#endif
}
/** @brief Application main function. */
int main(void)
{
ret_code_t ret;
// Initialize.
log_init();
timers_init();
buttons_leds_init();
app_usbd_serial_num_generate();
ret = nrf_drv_power_init(NULL);
APP_ERROR_CHECK(ret);
ret = nrf_drv_clock_init();
APP_ERROR_CHECK(ret);
#if NRF_LOG_ENABLED
// Start execution.
if (pdPASS != xTaskCreate(logger_thread,
"LOGGER",
LOGGER_STACK_SIZE,
NULL,
LOGGER_PRIORITY,
&m_logger_thread))
{
APP_ERROR_HANDLER(NRF_ERROR_NO_MEM);
}
#endif
if (pdPASS != xTaskCreate(usbd_thread,
"USBD",
USBD_STACK_SIZE,
NULL,
USBD_PRIORITY,
&m_usbd_thread))
{
APP_ERROR_HANDLER(NRF_ERROR_NO_MEM);
}
NRF_LOG_INFO("USBD BLE UART example started.");
ble_stack_init();
gap_params_init();
gatt_init();
services_init();
advertising_init();
conn_params_init();
// Create a FreeRTOS task for the BLE stack.
// The task will run advertising_start() before entering its loop.
nrf_sdh_freertos_init(advertising_start, NULL);
// Activate deep sleep mode.
SCB->SCR |= SCB_SCR_SLEEPDEEP_Msk;
// Start FreeRTOS scheduler.
vTaskStartScheduler();
for (;;)
{
APP_ERROR_HANDLER(NRF_ERROR_FORBIDDEN);
}
}
/**
* @}
*/
Thank you! I will check as soon as possible. Now I have USB working with RTOS, but does not work BLE, I hope an example of your code will help solve the problem
Please remember to set NRF_SDH_DISPATCH_MODEL to 2 in the sdk_config.h for the example above to work.
I checked the code, SoftDevice still does not work.
The application crashes to err_code = nrf_sdh_ble_enable (& ram_start);
where error code = 4
NRF_LOG_WARNING("Change the RAM start location from 0x%x to 0x%x.",
app_ram_start_link, *p_app_ram_start);
I change ram start address from 0x20002A98 to 0x20002AB8 (*p_app_ram_start)
and now it worked!!! =))
Maybe someone will come in handy this solution.
And thanks for the sample code! =))