Hello
I'm using sdk17.0.2. And I'm using the ble_nus service with the addition of nrf_crypto (AES_CTR).
I originally used nrf52832 and pca10040 and the test went well. But this time, I changed it to nrf52840 and I am going to use pca10056 of the same project for that.
And when I debug this, Bluetooth connection is good, but data is not sent to the app. (The default ble_app_uart example works well.)
I changed various settings while continuing to modify the code, but I think there might be a problem among these.
A memory error was output and corrected as follows: (RAM START, RAM SIZE)
main.c
/** @file
*
* @defgroup ble_sdk_app_template_main main.c
* @{
* @ingroup ble_sdk_app_template
* @brief Template project main file.
*
* This file contains a template for creating a new application. It has the code necessary to wakeup
* from button, advertise, get a connection restart advertising on disconnect and if no new
* connection created go back to system-off mode.
* It can easily be used as a starting point for creating a new application, the comments identified
* with 'YOUR_JOB' indicates where and how you can customize.
*/
#include <stdbool.h>
#include <stdint.h>
#include <string.h>
#include "nordic_common.h"
#include "nrf.h"
#include "app_error.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 "app_timer.h"
#include "fds.h"
#include "peer_manager.h"
#include "peer_manager_handler.h"
//#include "bsp_btn_ble.h"
#include "sensorsim.h"
#include "ble_conn_state.h"
#include "nrf_ble_gatt.h"
#include "nrf_ble_qwr.h"
#include "nrf_pwr_mgmt.h"
#include "nrf_delay.h"
//nus service
#include "ble_nus.h"
#include "app_uart.h"
#if defined (UART_PRESENT)
#include "nrf_uart.h"
#endif
#if defined (UARTE_PRESENT)
#include "nrf_uarte.h"
#endif
#include "nrf_log.h"
#include "nrf_log_ctrl.h"
#include "nrf_log_default_backends.h"
//crypto
#include "nrf_drv_clock.h"
#include "nrf_drv_power.h"
#include "app_util.h"
#include "boards.h"
#include "nrf_crypto.h"
#include "nrf_crypto_error.h"
#include "mem_manager.h"
//saadc
#include "nrf_drv_saadc.h"
#include "nrf_drv_ppi.h"
#include "nrf_drv_timer.h"
#include "app_util_platform.h"
#define APP_BLE_CONN_CFG_TAG 1 /**< A tag identifying the SoftDevice BLE configuration. */
#define DEVICE_NAME "Medical level device" /**< 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 MANUFACTURER_NAME "NordicSemiconductor" /**< Manufacturer. Will be passed to Device Information Service. */
#define APP_ADV_INTERVAL 64 //300 /**< The advertising interval (in units of 0.625 ms. This value corresponds to 187.5 ms). */
#define APP_ADV_DURATION 0 //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 MIN_CONN_INTERVAL MSEC_TO_UNITS(20, UNIT_1_25_MS) //100 /**< Minimum acceptable connection interval (0.1 seconds). */
#define MAX_CONN_INTERVAL MSEC_TO_UNITS(75, UNIT_1_25_MS) //200 /**< 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. */
#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. */
NRF_BLE_QWR_DEF(m_qwr); /**< Context for the Queued Write module.*/
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 void advertising_start(bool erase_bonds);
/**@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 Service 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 service_error_handler(uint32_t nrf_error)
{
APP_ERROR_HANDLER(nrf_error);
}
/**@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);
switch (p_evt->evt_id)
{
case PM_EVT_PEERS_DELETE_SUCCEEDED:
advertising_start(false);
break;
default:
break;
}
}
/**@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.
ret_code_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);
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 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 module.
*/
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, 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 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);
}
/**@brief Function for handling the data from the Nordic UART Service.
*
* @details This function will process the data received from the Nordic UART BLE Service and send
* it to the UART module.
*
* @param[in] p_evt Nordic UART Service event.
*/
/**@snippet [Handling the data received over BLE] */
static void nus_data_handler(ble_nus_evt_t * p_evt)
{
if (p_evt->type == BLE_NUS_EVT_RX_DATA)
{
uint32_t err_code;
NRF_LOG_DEBUG("Received data from BLE NUS. Writing data on UART.");
NRF_LOG_HEXDUMP_DEBUG(p_evt->params.rx_data.p_data, p_evt->params.rx_data.length);
for (uint32_t i = 0; i < p_evt->params.rx_data.length; i++)
{
do
{
err_code = app_uart_put(p_evt->params.rx_data.p_data[i]);
if ((err_code != NRF_SUCCESS) && (err_code != NRF_ERROR_BUSY))
{
NRF_LOG_ERROR("Failed receiving NUS message. Error 0x%x. ", err_code);
APP_ERROR_CHECK(err_code);
}
} while (err_code == NRF_ERROR_BUSY);
}
if (p_evt->params.rx_data.p_data[p_evt->params.rx_data.length - 1] == '\r')
{
while (app_uart_put('\n') == NRF_ERROR_BUSY);
}
}
}
/**@snippet [Handling the data received over BLE] */
/**@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;
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);
// 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 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 = 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)
{
}
/**@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;
//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 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: //When disconnected bluetooth, power off
//sleep_mode_enter();
break;
default:
break;
}
}
//check connection
int connection_state;
/**@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)
{
ret_code_t err_code = NRF_SUCCESS;
switch (p_ble_evt->header.evt_id)
{
case BLE_GAP_EVT_CONNECTED:
//NRF_LOG_INFO("Connected.");
NRF_LOG_RAW_INFO("Connected\n");
NRF_LOG_FLUSH();
connection_state = 1;
//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_DISCONNECTED:
//NRF_LOG_INFO("Disconnected.");
NRF_LOG_RAW_INFO("Disconnected\n");
NRF_LOG_FLUSH();
connection_state = 0;
// LED indication will be changed when advertising starts.
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;
//add
case BLE_GAP_EVT_SEC_PARAMS_REQUEST: //Request to provide security parameters
// 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_GATTS_EVT_SYS_ATTR_MISSING: //A persistent system attribute access is pending
// No system attributes have been stored.
err_code = sd_ble_gatts_sys_attr_set(m_conn_handle, NULL, 0, 0); //Set the persistent system attributes for a connection
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 handling app_uart events.
*
* @details This function will receive a single character from the app_uart module and append it to
* a string. The string will be be sent over BLE when the last character received was a
* 'new line' '\n' (hex 0x0A) or if the string has reached the maximum data length.
*/
/**@snippet [Handling the data received over UART] */
void uart_event_handle(app_uart_evt_t * p_event)
{
static uint8_t data_array[BLE_NUS_MAX_DATA_LEN];
static uint8_t index = 0;
uint32_t err_code;
switch (p_event->evt_type)
{
case APP_UART_DATA_READY:
UNUSED_VARIABLE(app_uart_get(&data_array[index]));
index++;
if ((data_array[index - 1] == '\n') ||
(data_array[index - 1] == '\r') ||
(index >= m_ble_nus_max_data_len))
{
if (index > 1)
{
NRF_LOG_DEBUG("Ready to send data over BLE NUS");
NRF_LOG_HEXDUMP_DEBUG(data_array, index);
do
{
uint16_t length = (uint16_t)index;
err_code = ble_nus_data_send(&m_nus, data_array, &length, m_conn_handle);
if ((err_code != NRF_ERROR_INVALID_STATE) &&
(err_code != NRF_ERROR_RESOURCES) &&
(err_code != NRF_ERROR_NOT_FOUND))
{
APP_ERROR_CHECK(err_code);
}
} while (err_code == NRF_ERROR_RESOURCES);
}
index = 0;
}
break;
case APP_UART_COMMUNICATION_ERROR:
APP_ERROR_HANDLER(p_event->data.error_communication);
break;
case APP_UART_FIFO_ERROR:
APP_ERROR_HANDLER(p_event->data.error_code);
break;
default:
break;
}
}
/**@snippet [Handling the data received over UART] */
/**@brief Function for initializing the UART module.
*/
/**@snippet [UART Initialization] */
static void uart_init(void)
{
uint32_t err_code;
app_uart_comm_params_t const comm_params =
{
.rx_pin_no = RX_PIN_NUMBER,
.tx_pin_no = TX_PIN_NUMBER,
.rts_pin_no = RTS_PIN_NUMBER,
.cts_pin_no = CTS_PIN_NUMBER,
.flow_control = APP_UART_FLOW_CONTROL_DISABLED,
.use_parity = false,
#if defined (UART_PRESENT)
.baud_rate = NRF_UART_BAUDRATE_115200
#else
.baud_rate = NRF_UARTE_BAUDRATE_115200
#endif
};
APP_UART_FIFO_INIT(&comm_params,
UART_RX_BUF_SIZE,
UART_TX_BUF_SIZE,
uart_event_handle,
APP_IRQ_PRIORITY_LOWEST,
err_code);
APP_ERROR_CHECK(err_code);
//nrf_gpio_cfg_input (RX_PIN_NUMBER, NRF_GPIO_PIN_PULLUP); //if uart error, use it
}
/**@snippet [UART Initialization] */
/**@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 the Peer Manager initialization.
*/
static void peer_manager_init(void)
{
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 bond information from persistent storage.
*/
static void delete_bonds(void)
{
ret_code_t err_code;
//NRF_LOG_INFO("Erase bonds!");
NRF_LOG_RAW_INFO("Erase bonds!\n");
NRF_LOG_FLUSH();
err_code = pm_peers_delete();
APP_ERROR_CHECK(err_code);
}
/**@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; //Determines if Appearance shall be included (bluetooth Icon?)
//init.advdata.flags = BLE_GAP_ADV_FLAGS_LE_ONLY_LIMITED_DISC_MODE;
init.advdata.flags = BLE_GAP_ADV_FLAGS_LE_ONLY_GENERAL_DISC_MODE; //For infinity scan
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; //64
init.config.ble_adv_fast_timeout = APP_ADV_DURATION; //0, advertising timeout
init.evt_handler = on_adv_evt;
//init.config.ble_adv_on_disconnect_disabled = false; //true : if disconnet no advertising(scan) / false : if disconnet auto advertising(scan) and connected
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 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();
}
/**@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 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();
}
}
/**@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_DELETED_SUCEEDED event
}
else
{
ret_code_t err_code = ble_advertising_start(&m_advertising, BLE_ADV_MODE_FAST);
APP_ERROR_CHECK(err_code);
}
}
//=====================================================================================
//AES CTR
int adc_value; //saadc
#define NRF_CRYPTO_EXAMPLE_AES_MAX_TEXT_SIZE (100) //(100)
#define AES_ERROR_CHECK(error) \
do { \
if (error) \
{ \
NRF_LOG_RAW_INFO("\r\nError = 0x%x\r\n%s\r\n", \
(error), \
nrf_crypto_error_string_get(error)); \
return; \
} \
} while (0);
/* Maximum allowed key = 256 bit */
static uint8_t m_key[32] = {'V', 'E', 'C', 'T', 'R', 'O', 'W',
'S', 'E', 'M', 'I', 'C', 'O', 'N', 'D', 'U', 'C', 'T', 'O', 'R',
'A', 'E', 'S', '&', 'C', 'T', 'R', ' ', 'T', 'E', 'S', 'T'};
/* Below text is used as plain text for encryption and decryption in AES CTR mode. */
//static char m_plain_text[NRF_CRYPTO_EXAMPLE_AES_MAX_TEXT_SIZE] =
//{
// "AES CTR Mode Test"
//};
char m_plain_text[NRF_CRYPTO_EXAMPLE_AES_MAX_TEXT_SIZE]; //100
static char m_encrypted_text[NRF_CRYPTO_EXAMPLE_AES_MAX_TEXT_SIZE]; //encrypt
static char m_decrypted_text[NRF_CRYPTO_EXAMPLE_AES_MAX_TEXT_SIZE]; //decrypt
//char encrypted_array[NRF_CRYPTO_EXAMPLE_AES_MAX_TEXT_SIZE];
char app_encrypted_text[NRF_CRYPTO_EXAMPLE_AES_MAX_TEXT_SIZE];
char app_plain_text[NRF_CRYPTO_EXAMPLE_AES_MAX_TEXT_SIZE];
char app_label_text[NRF_CRYPTO_EXAMPLE_AES_MAX_TEXT_SIZE];
uint16_t length_app_encrypt;
static void text_print(char const* p_label, char const * p_text, size_t len)
{
uint32_t err_code;
NRF_LOG_RAW_INFO("-%s-\r\n", p_label);
NRF_LOG_FLUSH();
for(size_t i = 0; i < len; i++) //output sensor value
{
NRF_LOG_RAW_INFO("%c", p_text[i]);
NRF_LOG_FLUSH();
}
NRF_LOG_RAW_INFO("\r\n\r\n");
NRF_LOG_FLUSH();
}
static void hex_text_print(char const* p_label, char const * p_text, size_t len) //char const* p_label, char const * p_text, size_t len
{
uint32_t err_code;
NRF_LOG_RAW_INFO("-%s-\r\n", p_label);
NRF_LOG_FLUSH();
// Handle partial line (left)
for (size_t i = 0; i < len; i++) //len = 18
{
if (((i & 0xF) == 0) && (i > 0))
{
NRF_LOG_RAW_INFO("\r\n");
NRF_LOG_FLUSH();
}
NRF_LOG_RAW_INFO("%02x ", p_text[i]);
NRF_LOG_FLUSH();
//send to app (crypto sensor value) //problem : Only some data, not all data, has been sent
sprintf(app_encrypted_text, "%02x ", p_text[i]);
//uint16_t length_app_encrypt = len;
length_app_encrypt = len;
//Move code to main-while() for problem solve
err_code = ble_nus_data_send(&m_nus, &app_encrypted_text, &length_app_encrypt, m_conn_handle);
if ((err_code != NRF_ERROR_INVALID_STATE) &&
(err_code != NRF_ERROR_RESOURCES) &&
(err_code != NRF_ERROR_NOT_FOUND) &&
(err_code != BLE_ERROR_GATTS_SYS_ATTR_MISSING))
{
APP_ERROR_CHECK(err_code); //error when disconnted bluetooth?
}
nrf_delay_ms(10); //Used to prevent continuous transmission stop (change NRF_SDH_BLE_GAP_EVENT_LENGTH in config.h)
//test (OK)
//NRF_LOG_RAW_INFO(" app test : %s / array_len : %d\n", app_encrypted_text, length_app_encrypt);
//NRF_LOG_FLUSH();
}
//test (OK)
//for(int i=0; i<len; i++)
//{
// NRF_LOG_RAW_INFO(" app test : %02x\n", p_text[i]);
// NRF_LOG_FLUSH();
//}
NRF_LOG_RAW_INFO("\r\n\r\n");
NRF_LOG_FLUSH();
}
static void plain_text_print(void)
{
text_print("Plain text", m_plain_text, strlen(m_plain_text));
//hex_text_print("Plain text (hex)", m_plain_text, strlen(m_plain_text));
}
static void encrypted_text_print(char const * p_text, size_t encrypted_len)
{
hex_text_print("Encrypted text (hex)", p_text, encrypted_len);
}
static void decrypted_text_print(char const * p_text, size_t decrypted_len)
{
text_print("Decrypted text", p_text, decrypted_len);
//hex_text_print("Decrypted text (hex)", p_text, decrypted_len);
}
static void crypt_ctr(void)
{
uint8_t iv[16];
ret_code_t ret_val;
size_t len_in;
size_t len_out;
static nrf_crypto_aes_context_t ctr_encr_128_ctx; // AES CTR encryption context
static nrf_crypto_aes_context_t ctr_decr_128_ctx; // AES CTR decryption context
plain_text_print();
/* Init encryption context for 128 bit key */
ret_val = nrf_crypto_aes_init(&ctr_encr_128_ctx,
&g_nrf_crypto_aes_ctr_128_info,
NRF_CRYPTO_ENCRYPT);
AES_ERROR_CHECK(ret_val);
/* Set key for encryption context - only first 128 key bits will be used */
ret_val = nrf_crypto_aes_key_set(&ctr_encr_128_ctx, m_key);
AES_ERROR_CHECK(ret_val);
memset(iv, 0, sizeof(iv));
/* Set IV for encryption context */
ret_val = nrf_crypto_aes_iv_set(&ctr_encr_128_ctx, iv);
AES_ERROR_CHECK(ret_val);
len_in = strlen(m_plain_text); //size of sensor value is 1~3 byte?
#define PARTIAL_MESSAGE_SIZE (16u) // 16 bytes
/* Encrypt first 10 bytes */
ret_val = nrf_crypto_aes_update(&ctr_encr_128_ctx,
(uint8_t *)m_plain_text,
PARTIAL_MESSAGE_SIZE, // encrypt first 10 bytes
(uint8_t *)m_encrypted_text);
AES_ERROR_CHECK(ret_val);
size_t offset = PARTIAL_MESSAGE_SIZE;
len_out = sizeof(m_encrypted_text) - PARTIAL_MESSAGE_SIZE;
/* Encrypt first rest of text */
ret_val = nrf_crypto_aes_finalize(&ctr_encr_128_ctx,
(uint8_t *)m_plain_text + offset, // skip already encrypted bytes
len_in - offset,
(uint8_t *)m_encrypted_text + offset,
&len_out);
AES_ERROR_CHECK(ret_val);
encrypted_text_print(m_encrypted_text, PARTIAL_MESSAGE_SIZE + len_out);
memset(iv, 0, sizeof(iv));
len_in = len_out + offset; // length of encrypted message is an input for decryption
len_out = sizeof(m_decrypted_text);
/* Decrypt with integrated function */
ret_val = nrf_crypto_aes_crypt(&ctr_decr_128_ctx,
&g_nrf_crypto_aes_ctr_128_info,
NRF_CRYPTO_DECRYPT,
m_key,
iv,
(uint8_t *)m_encrypted_text,
len_in,
(uint8_t *)m_decrypted_text,
&len_out);
AES_ERROR_CHECK(ret_val);
decrypted_text_print(m_decrypted_text, len_out);
if (memcmp(m_plain_text, m_decrypted_text, len_out) == 0)
{
//NRF_LOG_RAW_INFO("AES CTR example executed successfully.\r\n");
}
else
{
NRF_LOG_RAW_INFO("AES CTR example failed!!!\r\n");
NRF_LOG_FLUSH();
}
}
//=====================================================================================
//saadc
#define SAMPLES_IN_BUFFER 5
#define ADC_Time 700
volatile uint8_t state = 1;
static const nrf_drv_timer_t m_timer = NRF_DRV_TIMER_INSTANCE(2); //0
static nrf_saadc_value_t m_buffer_pool[2][SAMPLES_IN_BUFFER];
static nrf_ppi_channel_t m_ppi_channel;
static uint32_t m_adc_evt_counter;
void timer_handler(nrf_timer_event_t event_type, void * p_context)
{
}
void saadc_sampling_event_init(void)
{
ret_code_t err_code;
err_code = nrf_drv_ppi_init();
APP_ERROR_CHECK(err_code);
nrf_drv_timer_config_t timer_cfg = NRF_DRV_TIMER_DEFAULT_CONFIG;
timer_cfg.bit_width = NRF_TIMER_BIT_WIDTH_32;
err_code = nrf_drv_timer_init(&m_timer, &timer_cfg, timer_handler);
APP_ERROR_CHECK(err_code);
/* setup m_timer for compare event every (ADC_Time)ms */
uint32_t ticks = nrf_drv_timer_ms_to_ticks(&m_timer, ADC_Time); //output time
nrf_drv_timer_extended_compare(&m_timer,
NRF_TIMER_CC_CHANNEL0,
ticks,
NRF_TIMER_SHORT_COMPARE0_CLEAR_MASK,
false);
nrf_drv_timer_enable(&m_timer);
uint32_t timer_compare_event_addr = nrf_drv_timer_compare_event_address_get(&m_timer,
NRF_TIMER_CC_CHANNEL0);
uint32_t saadc_sample_task_addr = nrf_drv_saadc_sample_task_get();
/* setup ppi channel so that timer compare event is triggering sample task in SAADC */
err_code = nrf_drv_ppi_channel_alloc(&m_ppi_channel);
APP_ERROR_CHECK(err_code);
err_code = nrf_drv_ppi_channel_assign(m_ppi_channel,
timer_compare_event_addr,
saadc_sample_task_addr);
APP_ERROR_CHECK(err_code);
}
void saadc_sampling_event_enable(void)
{
ret_code_t err_code = nrf_drv_ppi_channel_enable(m_ppi_channel);
APP_ERROR_CHECK(err_code);
}
void saadc_callback(nrf_drv_saadc_evt_t const * p_event)
{
int sum = 0;
int value = 0;
ret_code_t err_code;
if (p_event->type == NRF_DRV_SAADC_EVT_DONE)
{
err_code = nrf_drv_saadc_buffer_convert(p_event->data.done.p_buffer, SAMPLES_IN_BUFFER);
APP_ERROR_CHECK(err_code);
//NRF_LOG_INFO("ADC event number: %d", (int)m_adc_evt_counter);
for (int i = 0; i < SAMPLES_IN_BUFFER; i++)
{
value = p_event->data.done.p_buffer[i];
sum = sum + value;
}
adc_value = sum / SAMPLES_IN_BUFFER;
m_adc_evt_counter++;
}
}
void saadc_init(void)
{
ret_code_t err_code;
nrf_saadc_channel_config_t channel_config =
NRF_DRV_SAADC_DEFAULT_CHANNEL_CONFIG_SE(NRF_SAADC_INPUT_AIN1); //p0.03
//add option
//adc input range = reperence / gain (REFERENCE_VDD4 / GAIN1_4 = VDD)
channel_config.gain = NRF_SAADC_GAIN1_4; //volt gain change (ADC range, Gain factor 1/4)
channel_config.reference = NRF_SAADC_REFERENCE_VDD4; //VDD/4 as reference
err_code = nrf_drv_saadc_init(NULL, saadc_callback);
APP_ERROR_CHECK(err_code);
err_code = nrf_drv_saadc_channel_init(0, &channel_config);
APP_ERROR_CHECK(err_code);
err_code = nrf_drv_saadc_buffer_convert(m_buffer_pool[0], SAMPLES_IN_BUFFER);
APP_ERROR_CHECK(err_code);
err_code = nrf_drv_saadc_buffer_convert(m_buffer_pool[1], SAMPLES_IN_BUFFER);
APP_ERROR_CHECK(err_code);
}
void saadc_all_init()
{
saadc_init();
saadc_sampling_event_init();
saadc_sampling_event_enable();
}
//=====================================================================================
/**@brief Function for application main entry.
*/
int main(void)
{
bool erase_bonds;
uint32_t err_code;
// Initialize.
uart_init(); //error (OK, sdk_config.h->backend RTT(1), UART(0) check)
log_init();
timers_init();
//buttons_leds_init(&erase_bonds);
power_management_init();
ble_stack_init(); //nrf_drv_power.c error (OK)
gap_params_init();
gatt_init();
services_init(); //memory error (OK)
advertising_init();
conn_params_init();
peer_manager_init();
// Start execution.
NRF_LOG_INFO("Template example started.");
advertising_start(erase_bonds);
//nrf_drv_clock_lfclk_request(NULL);
//err_code = nrf_crypto_init();
//APP_ERROR_CHECK(err_code);
//err_code = nrf_mem_init();
//APP_ERROR_CHECK(err_code);
saadc_all_init();
//crypt_ctr();
//test
char app_test[100];
int test_value;
// Enter main loop.
for (;;)
{
idle_state_handle();
//if(connection_state == 1)
//{
// if(adc_value > 0)
// {
// sprintf(m_plain_text, "%d ", adc_value); //error : The length of the one or more output arguments was too small (longer than 16byte)
// crypt_ctr();
// adc_value = 0;
// }
// //else //adc_value == 0
// //{
// //}
//}
//else //not connect bluetooth
//{
//}
//test
if(connection_state == 1)
{
test_value++;
sprintf(app_test, "%d", test_value); //app
uint16_t length_test_valuel = strlen(app_test);
err_code = ble_nus_data_send(&m_nus, &app_test, &length_test_valuel, m_conn_handle);
if ((err_code != NRF_ERROR_INVALID_STATE) &&
(err_code != NRF_ERROR_RESOURCES) &&
(err_code != NRF_ERROR_NOT_FOUND) &&
(err_code != BLE_ERROR_GATTS_SYS_ATTR_MISSING))
{
APP_ERROR_CHECK(err_code);
}
nrf_delay_ms(1000);
}
}
}
/**
* @}
*/
May I know the problem with this?
Thank you always.
