I am trying to configure himax camera and stream to app but unable to get image, rather when I am using nrf app to see data i am getting data something like this:
'40-13', '81-4B', 'C2-80', 'C0-5A', '89-C0-5A', '80-0B', '01-C1', 'BD-40-1A', 'C0-27', '2D-83-C1', '4F-C2-85', '63-C2-80', '5A-01-C1', 'C0-48', '80-40-1A', '5A-03-C1', '5A-02-D0', '18-40-13', '40-5A', 'C2-81'. I am attaching the code with i am using to send data and attached and ble_image_transfer_service.c file. Kindly help me in that.
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* Copyright (c) 2012 - 2017, 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
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* conditions and the following disclaimer in the documentation and/or other
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* 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.
*
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#include <stdio.h>
#include "sdk_common.h"
#if NRF_MODULE_ENABLED(BLE_NUS)
#include "ble_image_transfer_service.h"
#include "ble_srv_common.h"
#include "ble.h"
#include "nrf_gpio.h"
#define BLE_UUID_ITS_TX_CHARACTERISTIC 0x0003 /**< The UUID of the TX Characteristic. */
#define BLE_UUID_ITS_RX_CHARACTERISTIC 0x0002 /**< The UUID of the RX Characteristic. */
#define BLE_UUID_ITS_IMG_INFO_CHARACTERISTIC 0x0004
#define BLE_ITS_MAX_RX_CHAR_LEN BLE_ITS_MAX_DATA_LEN /**< Maximum length of the RX Characteristic (in bytes). */
#define BLE_ITS_MAX_TX_CHAR_LEN BLE_ITS_MAX_DATA_LEN /**< Maximum length of the TX Characteristic (in bytes). */
#define ITS_BASE_UUID {{0x3E, 0xCA, 0xDC, 0x24, 0x0E, 0xE5, 0xA9, 0xE0, 0x93, 0xF3, 0xA3, 0xB5, 0x00, 0x00, 0x40, 0x6E}} /**< Used vendor specific UUID. */
#include "nrf_log.h"
volatile uint32_t file_size = 0, file_pos = 0, m_max_data_length = 20;
uint8_t * file_data;
ble_its_t * m_its;
#define ITS_ENABLE_PIN_DEBUGGING 0
#if(ITS_ENABLE_PIN_DEBUGGING == 1)
#define ITS_DEBUG_PIN_SET(_pin) nrf_gpio_pin_set(DBG_PIN_ ## _pin)
#define ITS_DEBUG_PIN_CLR(_pin) nrf_gpio_pin_clear(DBG_PIN_ ## _pin)
#else
#define ITS_DEBUG_PIN_SET(_pin)
#define ITS_DEBUG_PIN_CLR(_pin)
#endif
static void its_enable_gpio_debug(void)
{
#if(ITS_ENABLE_PIN_DEBUGGING == 1)
nrf_gpio_cfg_output(DBG_PIN_0);
nrf_gpio_cfg_output(DBG_PIN_1);
nrf_gpio_cfg_output(DBG_PIN_2);
// Configure two GPIO's to signal TX and RX activity on the radio, for debugging throughput issues on different phones
NRF_GPIOTE->CONFIG[0] = GPIOTE_CONFIG_MODE_Task << GPIOTE_CONFIG_MODE_Pos |
GPIOTE_CONFIG_POLARITY_Toggle << GPIOTE_CONFIG_POLARITY_Pos |
DBG_PIN_3 << GPIOTE_CONFIG_PSEL_Pos;
NRF_GPIOTE->CONFIG[1] = GPIOTE_CONFIG_MODE_Task << GPIOTE_CONFIG_MODE_Pos |
GPIOTE_CONFIG_POLARITY_Toggle << GPIOTE_CONFIG_POLARITY_Pos |
DBG_PIN_4 << GPIOTE_CONFIG_PSEL_Pos;
NRF_PPI->CH[0].EEP = (uint32_t)&NRF_RADIO->EVENTS_TXREADY;
NRF_PPI->CH[0].TEP = (uint32_t)&NRF_GPIOTE->TASKS_SET[0];
NRF_PPI->CH[1].EEP = (uint32_t)&NRF_RADIO->EVENTS_RXREADY;
NRF_PPI->CH[1].TEP = (uint32_t)&NRF_GPIOTE->TASKS_SET[1];
NRF_PPI->CH[2].EEP = (uint32_t)&NRF_RADIO->EVENTS_DISABLED;
NRF_PPI->CH[2].TEP = (uint32_t)&NRF_GPIOTE->TASKS_CLR[0];
NRF_PPI->FORK[2].TEP = (uint32_t)&NRF_GPIOTE->TASKS_CLR[1];
NRF_PPI->CHENSET = 0x07;
#endif
}
/**@brief Function for handling the @ref BLE_GAP_EVT_CONNECTED event from the S110 SoftDevice.
*
* @param[in] p_its Nordic UART Service structure.
* @param[in] p_ble_evt Pointer to the event received from BLE stack.
*/
static void on_connect(ble_its_t * p_its, ble_evt_t const * p_ble_evt)
{
p_its->conn_handle = p_ble_evt->evt.gap_evt.conn_handle;
}
/**@brief Function for handling the @ref BLE_GAP_EVT_DISCONNECTED event from the S110 SoftDevice.
*
* @param[in] p_its Nordic UART Service structure.
* @param[in] p_ble_evt Pointer to the event received from BLE stack.
*/
static void on_disconnect(ble_its_t * p_its, ble_evt_t const * p_ble_evt)
{
UNUSED_PARAMETER(p_ble_evt);
p_its->conn_handle = BLE_CONN_HANDLE_INVALID;
}
/**@brief Function for handling the @ref BLE_GATTS_EVT_WRITE event from the S110 SoftDevice.
*
* @param[in] p_its Nordic UART Service structure.
* @param[in] p_ble_evt Pointer to the event received from BLE stack.
*/
static void on_write(ble_its_t * p_its, ble_evt_t const * p_ble_evt)
{
ble_gatts_evt_write_t const * p_evt_write = &p_ble_evt->evt.gatts_evt.params.write;
if (
(p_evt_write->handle == p_its->tx_handles.cccd_handle)
&&
(p_evt_write->len == 2)
)
{
if (ble_srv_is_notification_enabled(p_evt_write->data))
{
p_its->is_notification_enabled = true;
}
else
{
p_its->is_notification_enabled = false;
}
}
else if (
(p_evt_write->handle == p_its->img_info_handles.cccd_handle)
&&
(p_evt_write->len == 2)
)
{
if (ble_srv_is_notification_enabled(p_evt_write->data))
{
p_its->is_info_char_notification_enabled = true;
}
else
{
p_its->is_info_char_notification_enabled = false;
}
}
else if (
(p_evt_write->handle == p_its->rx_handles.value_handle)
&&
(p_its->data_handler != NULL)
)
{
p_its->data_handler(p_its, p_evt_write->data, p_evt_write->len);
}
else
{
// Do Nothing. This event is not relevant for this service.
}
}
/**@brief Function for adding TX characteristic.
*
* @param[in] p_its Nordic UART Service structure.
* @param[in] p_its_init Information needed to initialize the service.
*
* @return NRF_SUCCESS on success, otherwise an error code.
*/
static uint32_t tx_char_add(ble_its_t * p_its, const ble_its_init_t * p_its_init)
{
/**@snippet [Adding proprietary characteristic to S110 SoftDevice] */
ble_gatts_char_md_t char_md;
ble_gatts_attr_md_t cccd_md;
ble_gatts_attr_t attr_char_value;
ble_uuid_t ble_uuid;
ble_gatts_attr_md_t attr_md;
memset(&cccd_md, 0, sizeof(cccd_md));
BLE_GAP_CONN_SEC_MODE_SET_OPEN(&cccd_md.read_perm);
BLE_GAP_CONN_SEC_MODE_SET_OPEN(&cccd_md.write_perm);
cccd_md.vloc = BLE_GATTS_VLOC_STACK;
memset(&char_md, 0, sizeof(char_md));
char_md.char_props.notify = 1;
char_md.p_char_user_desc = NULL;
char_md.p_char_pf = NULL;
char_md.p_user_desc_md = NULL;
char_md.p_cccd_md = &cccd_md;
char_md.p_sccd_md = NULL;
ble_uuid.type = p_its->uuid_type;
ble_uuid.uuid = BLE_UUID_ITS_TX_CHARACTERISTIC;
memset(&attr_md, 0, sizeof(attr_md));
BLE_GAP_CONN_SEC_MODE_SET_OPEN(&attr_md.read_perm);
BLE_GAP_CONN_SEC_MODE_SET_OPEN(&attr_md.write_perm);
attr_md.vloc = BLE_GATTS_VLOC_STACK;
attr_md.rd_auth = 0;
attr_md.wr_auth = 0;
attr_md.vlen = 1;
memset(&attr_char_value, 0, sizeof(attr_char_value));
attr_char_value.p_uuid = &ble_uuid;
attr_char_value.p_attr_md = &attr_md;
attr_char_value.init_len = sizeof(uint8_t);
attr_char_value.init_offs = 0;
attr_char_value.max_len = BLE_ITS_MAX_TX_CHAR_LEN;
return sd_ble_gatts_characteristic_add(p_its->service_handle,
&char_md,
&attr_char_value,
&p_its->tx_handles);
/**@snippet [Adding proprietary characteristic to S110 SoftDevice] */
}
/**@brief Function for adding TX characteristic.
*
* @param[in] p_its Nordic UART Service structure.
* @param[in] p_its_init Information needed to initialize the service.
*
* @return NRF_SUCCESS on success, otherwise an error code.
*/
static uint32_t img_info_char_add(ble_its_t * p_its, const ble_its_init_t * p_its_init)
{
/**@snippet [Adding proprietary characteristic to S110 SoftDevice] */
ble_gatts_char_md_t char_md;
ble_gatts_attr_md_t cccd_md;
ble_gatts_attr_t attr_char_value;
ble_uuid_t ble_uuid;
ble_gatts_attr_md_t attr_md;
memset(&cccd_md, 0, sizeof(cccd_md));
BLE_GAP_CONN_SEC_MODE_SET_OPEN(&cccd_md.read_perm);
BLE_GAP_CONN_SEC_MODE_SET_OPEN(&cccd_md.write_perm);
cccd_md.vloc = BLE_GATTS_VLOC_STACK;
memset(&char_md, 0, sizeof(char_md));
char_md.char_props.notify = 1;
char_md.p_char_user_desc = NULL;
char_md.p_char_pf = NULL;
char_md.p_user_desc_md = NULL;
char_md.p_cccd_md = &cccd_md;
char_md.p_sccd_md = NULL;
ble_uuid.type = p_its->uuid_type;
ble_uuid.uuid = BLE_UUID_ITS_IMG_INFO_CHARACTERISTIC;
memset(&attr_md, 0, sizeof(attr_md));
BLE_GAP_CONN_SEC_MODE_SET_OPEN(&attr_md.read_perm);
BLE_GAP_CONN_SEC_MODE_SET_OPEN(&attr_md.write_perm);
attr_md.vloc = BLE_GATTS_VLOC_STACK;
attr_md.rd_auth = 0;
attr_md.wr_auth = 0;
attr_md.vlen = 1;
memset(&attr_char_value, 0, sizeof(attr_char_value));
attr_char_value.p_uuid = &ble_uuid;
attr_char_value.p_attr_md = &attr_md;
attr_char_value.init_len = 1 + sizeof(ble_its_img_info_t);
attr_char_value.init_offs = 0;
attr_char_value.max_len = 16;
return sd_ble_gatts_characteristic_add(p_its->service_handle,
&char_md,
&attr_char_value,
&p_its->img_info_handles);
/**@snippet [Adding proprietary characteristic to S110 SoftDevice] */
}
/**@brief Function for adding RX characteristic.
*
* @param[in] p_its Nordic UART Service structure.
* @param[in] p_its_init Information needed to initialize the service.
*
* @return NRF_SUCCESS on success, otherwise an error code.
*/
static uint32_t rx_char_add(ble_its_t * p_its, const ble_its_init_t * p_its_init)
{
ble_gatts_char_md_t char_md;
ble_gatts_attr_t attr_char_value;
ble_uuid_t ble_uuid;
ble_gatts_attr_md_t attr_md;
memset(&char_md, 0, sizeof(char_md));
char_md.char_props.write = 1;
char_md.char_props.write_wo_resp = 1;
char_md.p_char_user_desc = NULL;
char_md.p_char_pf = NULL;
char_md.p_user_desc_md = NULL;
char_md.p_cccd_md = NULL;
char_md.p_sccd_md = NULL;
ble_uuid.type = p_its->uuid_type;
ble_uuid.uuid = BLE_UUID_ITS_RX_CHARACTERISTIC;
memset(&attr_md, 0, sizeof(attr_md));
BLE_GAP_CONN_SEC_MODE_SET_OPEN(&attr_md.read_perm);
BLE_GAP_CONN_SEC_MODE_SET_OPEN(&attr_md.write_perm);
attr_md.vloc = BLE_GATTS_VLOC_STACK;
attr_md.rd_auth = 0;
attr_md.wr_auth = 0;
attr_md.vlen = 1;
memset(&attr_char_value, 0, sizeof(attr_char_value));
attr_char_value.p_uuid = &ble_uuid;
attr_char_value.p_attr_md = &attr_md;
attr_char_value.init_len = 1;
attr_char_value.init_offs = 0;
attr_char_value.max_len = BLE_ITS_MAX_RX_CHAR_LEN;
return sd_ble_gatts_characteristic_add(p_its->service_handle,
&char_md,
&attr_char_value,
&p_its->rx_handles);
}
static uint32_t push_data_packets()
{
uint32_t return_code = NRF_SUCCESS;
uint32_t packet_length = m_max_data_length;
uint32_t packet_size = 0;
uint32_t temp_file_size = file_size; // Read volatile variable into a non-volatile temporary
uint32_t temp_file_pos = file_pos; // Read volatile variable into a non-volatile temporary
uint32_t remaining_size = temp_file_size - temp_file_pos; // Perform the arithmetic on non-volatile variables
ITS_DEBUG_PIN_SET(1);
while(return_code == NRF_SUCCESS)
{
//uint32_t remaining_size = file_size - file_pos; // Break down volatile access
if (remaining_size > packet_length) {
packet_size = packet_length;
} else if (remaining_size > 0) {
packet_size = remaining_size;
}
//
// if((file_size - file_pos) > packet_length)
// {
// packet_size = packet_length;
// }
// else if((file_size - file_pos) > 0)
// {
// packet_size = file_size - file_pos;
// }
if(packet_size > 0)
{
return_code = ble_its_string_send(m_its, &file_data[file_pos], packet_size);
if(return_code == NRF_SUCCESS)
{
file_pos += packet_size;
}
}
else
{
file_size = 0;
break;
}
}
ITS_DEBUG_PIN_CLR(1);
return return_code;
}
static volatile bool nrf_error_resources = false;
void ble_its_on_ble_evt(ble_evt_t const * p_ble_evt, void * p_context)
{
if ((p_context == NULL) || (p_ble_evt == NULL))
{
return;
}
ble_its_t * p_its = (ble_its_t*)p_context;
switch (p_ble_evt->header.evt_id)
{
case BLE_GAP_EVT_CONNECTED:
on_connect(p_its, p_ble_evt);
break;
case BLE_GAP_EVT_DISCONNECTED:
on_disconnect(p_its, p_ble_evt);
break;
case BLE_GATTS_EVT_WRITE:
on_write(p_its, p_ble_evt);
break;
case BLE_GATTS_EVT_HVN_TX_COMPLETE:
{
//uint32_t count = p_ble_evt->evt.gatts_evt.params.hvn_tx_complete.count;
ITS_DEBUG_PIN_SET(2);
ITS_DEBUG_PIN_CLR(1);
if(file_size > 0)
{
push_data_packets();
}
ITS_DEBUG_PIN_CLR(2);
nrf_error_resources = false;
}
break;
default:
// No implementation needed.
break;
}
}
uint32_t ble_its_init(ble_its_t * p_its, const ble_its_init_t * p_its_init)
{
uint32_t err_code;
ble_uuid_t ble_uuid;
ble_uuid128_t its_base_uuid = ITS_BASE_UUID;
VERIFY_PARAM_NOT_NULL(p_its);
VERIFY_PARAM_NOT_NULL(p_its_init);
// Initialize the service structure.
p_its->conn_handle = BLE_CONN_HANDLE_INVALID;
p_its->data_handler = p_its_init->data_handler;
p_its->is_notification_enabled = false;
/**@snippet [Adding proprietary Service to S110 SoftDevice] */
// Add a custom base UUID.
err_code = sd_ble_uuid_vs_add(&its_base_uuid, &p_its->uuid_type);
VERIFY_SUCCESS(err_code);
ble_uuid.type = p_its->uuid_type;
ble_uuid.uuid = BLE_UUID_ITS_SERVICE;
// Add the service.
err_code = sd_ble_gatts_service_add(BLE_GATTS_SRVC_TYPE_PRIMARY,
&ble_uuid,
&p_its->service_handle);
/**@snippet [Adding proprietary Service to S110 SoftDevice] */
VERIFY_SUCCESS(err_code);
// Add the RX Characteristic.
err_code = rx_char_add(p_its, p_its_init);
VERIFY_SUCCESS(err_code);
// Add the TX Characteristic.
err_code = tx_char_add(p_its, p_its_init);
VERIFY_SUCCESS(err_code);
// Add the Image Info Characteristic.
err_code = img_info_char_add(p_its, p_its_init);
VERIFY_SUCCESS(err_code);
its_enable_gpio_debug();
return NRF_SUCCESS;
}
uint32_t ble_its_string_send(ble_its_t * p_its, uint8_t * p_string, uint16_t length)
{
ble_gatts_hvx_params_t hvx_params;
uint32_t err_code;
ITS_DEBUG_PIN_SET(0);
if(nrf_error_resources)
{
ITS_DEBUG_PIN_CLR(0);
return NRF_ERROR_RESOURCES;
}
VERIFY_PARAM_NOT_NULL(p_its);
if ((p_its->conn_handle == BLE_CONN_HANDLE_INVALID) || (!p_its->is_notification_enabled))
{
return NRF_ERROR_INVALID_STATE;
}
if (length > BLE_ITS_MAX_DATA_LEN)
{
return NRF_ERROR_INVALID_PARAM;
}
memset(&hvx_params, 0, sizeof(hvx_params));
hvx_params.handle = p_its->tx_handles.value_handle;
hvx_params.p_data = p_string;
hvx_params.p_len = &length;
hvx_params.type = BLE_GATT_HVX_NOTIFICATION;
err_code = sd_ble_gatts_hvx(p_its->conn_handle, &hvx_params);
if(err_code == NRF_ERROR_RESOURCES)
{
nrf_error_resources = true;
ITS_DEBUG_PIN_SET(1);
}
ITS_DEBUG_PIN_CLR(0);
//NRF_LOG_INFO("NOT - Len: %i, err_code: %i", length, err_code);
return err_code;
}
uint32_t ble_its_ble_params_info_send(ble_its_t * p_its, ble_its_ble_params_info_t * ble_params_info)
{
uint8_t data_buf[1 + sizeof(ble_its_ble_params_info_t)];
ble_gatts_hvx_params_t hvx_params;
VERIFY_PARAM_NOT_NULL(p_its);
if ((p_its->conn_handle == BLE_CONN_HANDLE_INVALID) || (!p_its->is_info_char_notification_enabled))
{
return NRF_ERROR_INVALID_STATE;
}
uint16_t length = 1 + sizeof(ble_its_ble_params_info_t);
data_buf[0] = 2;
memcpy(&data_buf[1], ble_params_info, sizeof(ble_its_ble_params_info_t));
memset(&hvx_params, 0, sizeof(hvx_params));
hvx_params.handle = p_its->img_info_handles.value_handle;
hvx_params.p_data = data_buf;
hvx_params.p_len = &length;
hvx_params.type = BLE_GATT_HVX_NOTIFICATION;
return sd_ble_gatts_hvx(p_its->conn_handle, &hvx_params);
}
uint32_t ble_its_img_info_send(ble_its_t * p_its, ble_its_img_info_t * img_info)
{
uint8_t data_buf[1 + sizeof(ble_its_img_info_t)];
ble_gatts_hvx_params_t hvx_params;
VERIFY_PARAM_NOT_NULL(p_its);
if ((p_its->conn_handle == BLE_CONN_HANDLE_INVALID) || (!p_its->is_info_char_notification_enabled))
{
return NRF_ERROR_INVALID_STATE;
}
uint16_t length = 1 + sizeof(ble_its_img_info_t);
data_buf[0] = 1;
memcpy(&data_buf[1], img_info, sizeof(ble_its_img_info_t));
memset(&hvx_params, 0, sizeof(hvx_params));
hvx_params.handle = p_its->img_info_handles.value_handle;
hvx_params.p_data = data_buf;
hvx_params.p_len = &length;
hvx_params.type = BLE_GATT_HVX_NOTIFICATION;
return sd_ble_gatts_hvx(p_its->conn_handle, &hvx_params);
}
uint32_t ble_its_send_file(ble_its_t * p_its, uint8_t * p_data, uint32_t data_length, uint32_t max_packet_length)
{
uint32_t err_code;
if ((p_its->conn_handle == BLE_CONN_HANDLE_INVALID) || (!p_its->is_notification_enabled))
{
return NRF_ERROR_INVALID_STATE;
}
if(file_size != 0)
{
return NRF_ERROR_BUSY;
}
ble_its_img_info_t image_info;
image_info.file_size_bytes = data_length;
ble_its_img_info_send(p_its, &image_info);
file_size = data_length;
file_pos = 0;
file_data = p_data;
m_max_data_length = max_packet_length;
m_its = p_its;
err_code = push_data_packets();
if(err_code == NRF_ERROR_RESOURCES) return NRF_SUCCESS;
return err_code;
}
uint32_t ble_its_send_file_fragment(ble_its_t * p_its, uint8_t * p_data, uint32_t data_length)
{
uint32_t err_code;
if ((p_its->conn_handle == BLE_CONN_HANDLE_INVALID) || (!p_its->is_notification_enabled))
{
return NRF_ERROR_INVALID_STATE;
}
if(file_size != 0)
{
return NRF_ERROR_BUSY;
}
err_code = ble_its_string_send(p_its, p_data, data_length);
return err_code;
}
bool ble_its_file_transfer_busy(void)
{
return file_size != 0;
}
#endif // NRF_MODULE_ENABLED(BLE_NUS)
/**
* Copyright (c) 2014 - 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.
*
*/
#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_ble_gatt.h"
#include "nrf_ble_qwr.h"
#include "app_timer.h"
#include "ble_image_transfer_service.h"
#include "app_uart.h"
#include "app_util_platform.h"
#include "bsp_btn_ble.h"
#include "nrf_pwr_mgmt.h"
#include "nrf_drv_spi.h"
#include "hx_drv_tflm.h"
#if defined (UART_PRESENT)
#include "nrf_uart.h"
#endif
#if defined (UARTE_PRESENT)
#include "nrf_uarte.h"
#endif
#include "nrf_delay.h"
#include "nrf_log.h"
#include "nrf_log_ctrl.h"
#include "nrf_log_default_backends.h"
#define PCA10056_USE_FRONT_HEADER 0 /**< Use the front header (P24) for the camera module. Requires SB10-15 and SB20-25 to be soldered/cut, as described in the readme. */
#define APP_BLE_CONN_CFG_TAG 1 /**< A tag identifying the SoftDevice BLE configuration. */
#define DEVICE_NAME "Camera Demo v2" /**< 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(15, UNIT_1_25_MS) /**< Minimum acceptable connection interval (20 ms), Connection interval uses 1.25 ms units. */
#define MAX_CONN_INTERVAL MSEC_TO_UNITS(15, 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 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 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. */
#define SPI_SS_PIN 47 // P1.15
#define SPI_MISO_PIN 46 // P1.14
#define SPI_MOSI_PIN 45 // P1.13
#define SPI_SCK_PIN 44 // P1.12
#define SPI_INSTANCE 0 // Use SPI instance 0 // Use SPI instance 0. You can change this if needed.
static const nrf_drv_spi_t spi = NRF_DRV_SPI_INSTANCE(SPI_INSTANCE);
static uint8_t spi_tx_buf[1]; // Transmit buffer
static uint8_t spi_rx_buf[255]; // Receive buffer for image data
static uint32_t img_data_length = 0;
//static uint8_t img_data_buffer[255];
BLE_ITS_DEF(m_its, 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 uint8_t m_new_resolution;
static uint8_t m_new_phy;
static uint8_t m_new_command_received = 0;
//static uint8_t m_new_resolution, m_new_phy;
static bool m_stream_mode_active = false;
static ble_its_ble_params_info_t m_ble_params_info = {20, 50, 1, 1};
static uint16_t m_conn_handle = BLE_CONN_HANDLE_INVALID; /**< Handle of the current connection. */
static uint16_t m_ble_its_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_ITS_SERVICE, NUS_SERVICE_UUID_TYPE}
};
enum {APP_CMD_NOCOMMAND = 0, APP_CMD_SINGLE_CAPTURE, APP_CMD_START_STREAM, APP_CMD_STOP_STREAM,
APP_CMD_CHANGE_RESOLUTION, APP_CMD_CHANGE_PHY, APP_CMD_SEND_BLE_PARAMS};
/**@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 analyse
* 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(DEAD_BEEF, line_num, p_file_name);
}
hx_drv_sensor_image_config_t g_pimg_config;
/**@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 the GAP initialization.
*
* @details This function will set 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);
#if 0
ble_gap_addr_t ble_address = {.addr_type = BLE_GAP_ADDR_TYPE_RANDOM_STATIC,
.addr_id_peer = 0,
.addr = {0xC3,0x11,0x99,0x33,0x44,0xFF}};
err_code = sd_ble_gap_addr_set(&ble_address);
APP_ERROR_CHECK(err_code);
#endif
}
/**@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);
}
// Initialize SPI for camera data read
static void spi_init(void)
{
nrf_drv_spi_config_t spi_config = NRF_DRV_SPI_DEFAULT_CONFIG;
spi_config.ss_pin = SPI_SS_PIN;
spi_config.miso_pin = SPI_MISO_PIN;
spi_config.mosi_pin = SPI_MOSI_PIN;
spi_config.sck_pin = SPI_SCK_PIN;
// APP_ERROR_CHECK(nrf_drv_spi_init(&spi, &spi_config, NULL, NULL));
ret_code_t err_code = nrf_drv_spi_init(&spi, &spi_config, NULL, NULL);
if (err_code == NRF_SUCCESS)
{
NRF_LOG_INFO("SPI initialized successfully.");
}
else
{
NRF_LOG_ERROR("SPI initialization failed with error code: %d", err_code);
}
}
//9701351320
// Capture a single image frame via SPI
static void capture_image_spi(void)
{
// Assuming a command byte is needed to start the camera capture
spi_tx_buf[0] = 0x55; // Example command to trigger image capture
ret_code_t err_code = nrf_drv_spi_transfer(&spi, spi_tx_buf, 1, NULL, 0);
if (err_code == NRF_SUCCESS)
{
NRF_LOG_INFO("Camera capture command sent successfully.");
}
else
{
NRF_LOG_ERROR("Failed to send camera capture command: %d", err_code);
}
nrf_delay_ms(50); // Delay for image capture completion
// Read image data into buffer
img_data_length = 0;
memset(spi_rx_buf, 0, sizeof(spi_rx_buf));
while (img_data_length < sizeof(spi_rx_buf))
{
err_code = nrf_drv_spi_transfer(&spi, NULL, 0, &spi_rx_buf[img_data_length], 1); // Read one byte at a time
if (spi_rx_buf[img_data_length] != 0xFF && spi_rx_buf[img_data_length] != 0x00)
//if (err_code == NRF_SUCCESS)
{
img_data_length++;
}
else
{
NRF_LOG_ERROR("Failed to read image data: %d", err_code);
break;
}
}
if (img_data_length > 0)
{
NRF_LOG_INFO("Image data received: %d bytes", img_data_length);
}
else
{
NRF_LOG_WARNING("No image data received.");
}
}
/**@brief Function for handling the data from the ITS Service.
*
* @details This function will process the data received from the ITS BLE Service.
*
* @param[in] p_its ITS Service structure.
* @param[in] p_data Data received.
* @param[in] length Length of the data.
*/
/**@snippet [Handling the data received over BLE] */
static void its_data_handler(ble_its_t * p_its, uint8_t const * p_data, uint16_t length)
{
switch(p_data[0])
{
case APP_CMD_SINGLE_CAPTURE:
capture_image_spi();
m_new_command_received = p_data[0];
break;
case APP_CMD_START_STREAM:
m_stream_mode_active = true;
m_new_command_received = p_data[0];
break;
case APP_CMD_STOP_STREAM:
m_stream_mode_active = false;
m_new_command_received = p_data[0];
break;
case APP_CMD_CHANGE_RESOLUTION:
m_new_command_received = APP_CMD_CHANGE_RESOLUTION;
m_new_resolution = p_data[1];
NRF_LOG_INFO("Resolution changed to %d", m_new_resolution);
break;
case APP_CMD_CHANGE_PHY:
m_new_command_received = APP_CMD_CHANGE_PHY;
m_new_phy = p_data[1];
NRF_LOG_INFO("PHY changed to %d", m_new_phy);
break;
default:
NRF_LOG_ERROR("Unknown command!!");
break;
}
}
/**@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_its_init_t its_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 ITS.
memset(&its_init, 0, sizeof(its_init));
its_init.data_handler = its_data_handler;
err_code = ble_its_init(&m_its, &its_init);
if (err_code == NRF_SUCCESS)
{
NRF_LOG_INFO("Image Transfer Service initialized successfully.");
}
else
{
NRF_LOG_ERROR("Failed to initialize Image Transfer Service: %d", err_code);
}
APP_ERROR_CHECK(err_code);
}
/**@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)
{
switch(p_evt->evt_type)
{
case BLE_CONN_PARAMS_EVT_SUCCEEDED:
break;
case BLE_CONN_PARAMS_EVT_FAILED:
//err_code = sd_ble_gap_disconnect(m_conn_handle, BLE_HCI_CONN_INTERVAL_UNACCEPTABLE);
//APP_ERROR_CHECK(err_code);
NRF_LOG_ERROR("Conn params failed. Keep the connection anyway..");
break;
}
}
/**@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 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:
NRF_LOG_INFO("BLE_ADV_EVT_IDLE...");
err_code = ble_advertising_start(&m_advertising, BLE_ADV_MODE_FAST);
APP_ERROR_CHECK(err_code);
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;
ble_its_on_ble_evt(p_ble_evt, &m_its);
switch (p_ble_evt->header.evt_id)
{
case BLE_GAP_EVT_CONNECTED:
NRF_LOG_INFO("Connected");
err_code = bsp_indication_set(BSP_INDICATE_CONNECTED);
APP_ERROR_CHECK(err_code);
m_conn_handle = p_ble_evt->evt.gap_evt.conn_handle;
err_code = nrf_ble_qwr_conn_handle_assign(&m_qwr, m_conn_handle);
APP_ERROR_CHECK(err_code);
ble_its_ble_params_info_send(&m_its, &m_ble_params_info);
capture_image_spi();
break;
case BLE_GAP_EVT_DISCONNECTED:
NRF_LOG_INFO("Disconnected");
// LED indication will be changed when advertising starts.
m_stream_mode_active = false;
m_new_command_received = APP_CMD_CHANGE_RESOLUTION;
m_new_resolution = 1;
m_conn_handle = BLE_CONN_HANDLE_INVALID;
break;
case BLE_GAP_EVT_CONN_PARAM_UPDATE:
{
uint16_t max_con_int = p_ble_evt->evt.gap_evt.params.conn_param_update.conn_params.max_conn_interval;
uint16_t min_con_int = p_ble_evt->evt.gap_evt.params.conn_param_update.conn_params.min_conn_interval;
m_ble_params_info.con_interval = max_con_int;
ble_its_ble_params_info_send(&m_its, &m_ble_params_info);
NRF_LOG_INFO("Con params updated: CI %i, %i", (int)min_con_int, (int)max_con_int);
} break;
case BLE_GAP_EVT_PHY_UPDATE_REQUEST:
{
NRF_LOG_DEBUG("PHY update request.");
ble_gap_phys_t const phys =
{
BLE_GAP_PHY_AUTO,
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_PHY_UPDATE:
m_ble_params_info.tx_phy = p_ble_evt->evt.gap_evt.params.phy_update.tx_phy;
m_ble_params_info.rx_phy = p_ble_evt->evt.gap_evt.params.phy_update.rx_phy;
ble_its_ble_params_info_send(&m_its, &m_ble_params_info);
NRF_LOG_INFO("Phy update: %i, %i", (int)m_ble_params_info.tx_phy, (int)m_ble_params_info.rx_phy);
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_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;
default:
// No implementation needed.
//NRF_LOG_INFO("BLE event not handled by app: %i", p_ble_evt->header.evt_id);
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);
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);
err_code = nrf_sdh_ble_enable(&ram_start);
APP_ERROR_CHECK(err_code);
// Register BLE event handler
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)
{
uint32_t data_length;
if ((m_conn_handle == p_evt->conn_handle) && (p_evt->evt_id == NRF_BLE_GATT_EVT_ATT_MTU_UPDATED))
{
data_length = p_evt->params.att_mtu_effective - OPCODE_LENGTH - HANDLE_LENGTH;
//m_ble_params_info.mtu = m_ble_its_max_data_len;
NRF_LOG_INFO("gatt_event: ATT MTU is set to 0x%X (%d)", data_length, data_length);
}
else if ((m_conn_handle == p_evt->conn_handle) && (p_evt->evt_id == NRF_BLE_GATT_EVT_DATA_LENGTH_UPDATED))
{
data_length = p_evt->params.att_mtu_effective - OPCODE_LENGTH - HANDLE_LENGTH - 4;
m_ble_its_max_data_len = data_length;
m_ble_params_info.mtu = m_ble_its_max_data_len;
ble_its_ble_params_info_send(&m_its, &m_ble_params_info);
NRF_LOG_INFO("gatt_event: Data len is set to 0x%X (%d)", data_length, data_length);
}
//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, NRF_SDH_BLE_GATT_MAX_MTU_SIZE);
APP_ERROR_CHECK(err_code);
err_code = nrf_ble_gatt_data_length_set(&m_gatt, BLE_CONN_HANDLE_INVALID, NRF_SDH_BLE_GAP_DATA_LENGTH);
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:
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 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)
{
}
/**@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_NUMBER,
TX_PIN_NUMBER,
RTS_PIN_NUMBER,
CTS_PIN_NUMBER,
APP_UART_FLOW_CONTROL_DISABLED,
false,
#if defined (UART_PRESENT)
NRF_UART_BAUDRATE_115200
#else
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);
}
/**@snippet [UART Initialization] */
/**@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.
*
* @param[out] p_erase_bonds Will be true if the clear bonding button was pressed to wake the application up.
*/
static void buttons_leds_init(void)
{
bsp_event_t startup_event;
uint32_t err_code = bsp_init(BSP_INIT_LEDS | BSP_INIT_BUTTONS, bsp_event_handler);
APP_ERROR_CHECK(err_code);
err_code = bsp_btn_ble_init(NULL, &startup_event);
APP_ERROR_CHECK(err_code);
}
/**@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 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)
{
while(NRF_LOG_PROCESS());
sd_app_evt_wait();
}
/**@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);
}
void conn_evt_len_ext_set(bool status)
{
ret_code_t err_code;
ble_opt_t opt;
memset(&opt, 0x00, sizeof(opt));
opt.common_opt.conn_evt_ext.enable = status ? 1 : 0;
err_code = sd_ble_opt_set(BLE_COMMON_OPT_CONN_EVT_EXT, &opt);
APP_ERROR_CHECK(err_code);
}
void data_len_set(uint8_t value)
{
ret_code_t err_code;
err_code = nrf_ble_gatt_data_length_set(&m_gatt, BLE_CONN_HANDLE_INVALID, value);
APP_ERROR_CHECK(err_code);
}
void send_image_data_in_fragments(void)
{
uint32_t ret_code;
// Example variables
uint32_t total_image_size = img_data_length; // Assuming `img_data_length` holds the total image size
uint32_t bytes_sent = 0; // Counter for bytes sent
while (bytes_sent < total_image_size)
{
// Calculate the fragment size (either max allowed or remaining bytes if smaller)
uint32_t fragment_size = m_ble_its_max_data_len; // BLE max fragment size
if (total_image_size - bytes_sent < fragment_size)
{
fragment_size = total_image_size - bytes_sent;
}
// Send the fragment over BLE
ret_code = ble_its_send_file_fragment(&m_its, &spi_rx_buf[bytes_sent], fragment_size);
// If successful, update bytes_sent to indicate progress
if (ret_code == NRF_SUCCESS)
{
bytes_sent += fragment_size;
}
else if (ret_code == NRF_ERROR_RESOURCES)
{
// BLE stack busy; wait for next attempt
continue;
}
else
{
NRF_LOG_ERROR("Failed to send image fragment: %d", ret_code);
break; // Exit loop on non-recoverable error
}
}
if (bytes_sent == total_image_size)
{
NRF_LOG_INFO("Image data sent successfully: %d bytes", bytes_sent);
}
else
{
NRF_LOG_WARNING("Image data transfer incomplete. Sent: %d bytes out of %d", bytes_sent, total_image_size);
}
}
/**@brief Application main function.
*/
int main(void)
{
uart_init();
log_init();
timers_init();
buttons_leds_init();
ble_stack_init();
gap_params_init();
gatt_init();
services_init();
advertising_init();
conn_params_init();
sd_power_dcdc_mode_set(NRF_POWER_DCDC_ENABLE);
spi_init();
NRF_LOG_INFO("SPI Camera Data Read Demo started.");
advertising_start();
for (;;)
{
if (m_new_command_received != APP_CMD_NOCOMMAND)
{
uint32_t new_command = m_new_command_received;
m_new_command_received = APP_CMD_NOCOMMAND;
// Handle the received command
switch(new_command)
{
case APP_CMD_SINGLE_CAPTURE:
capture_image_spi();
break;
case APP_CMD_START_STREAM:
NRF_LOG_INFO("Stream mode enabled");
m_stream_mode_active = true;
break;
case APP_CMD_STOP_STREAM:
NRF_LOG_INFO("Stream mode disabled");
m_stream_mode_active = false;
break;
// Additional cases for resolution and PHY changes
// case APP_CMD_CHANGE_RESOLUTION:
// //set_camera_resolution(m_new_resolution); // Function to set resolution
// break;
//
// case APP_CMD_CHANGE_PHY:
// set_ble_phy(m_new_phy); // Function to set PHY
// break;
default:
break;
}
}
// Continuous streaming logic
if (m_stream_mode_active)
{
capture_image_spi();
if (img_data_length > 0)
{
// Send image data in fragments over BLE
send_image_data_in_fragments();
}
}
// Handle idle state
idle_state_handle();
}
}
