nrf51822 52832学习汇总

一、

基础、环境搭建，sdk等仔细看 iini - 博客园

弃用nRFgo studio Nordic NRF51822 从零开始系列（一）开发环境的搭建_闲人-CSDN博客_nrf51822NRFGO STUDIO无法识别板子 – 电子创客营

关于nRF connect遇到的问题

nRF connect for Desktop 配置_MEMORY_2016的博客

C:\Users\username\.nrfconnect-apps username->Administrator apps.json添加

{"pc-nrfconnect-ble": {"displayName": "Bluetooth Low Energy","description": "General tool for development and testing with Bluetooth Low Energy","homepage": "https://github.com/NordicSemiconductor/pc-nrfconnect-ble","url": "https://developer.nordicsemi.com/.pc-tools/nrfconnect-apps/pc-nrfconnect-ble"},"pc-nrfconnect-rssi": {"displayName": "RSSI Viewer","description": "Live visualization of RSSI per frequency for nRF52832","homepage": "https://github.com/NordicSemiconductor/pc-nrfconnect-rssi","url": "https://developer.nordicsemi.com/.pc-tools/nrfconnect-apps/pc-nrfconnect-rssi"},"pc-nrfconnect-ppk": {"displayName": "Power Profiler","description": "App for use with Nordic Power Profiler Kits","homepage": "https://github.com/NordicSemiconductor/pc-nrfconnect-ppk","url": "https://developer.nordicsemi.com/.pc-tools/nrfconnect-apps/pc-nrfconnect-ppk"},"pc-nrfconnect-programmer": {"displayName": "Programmer","description": "Tool for flash programming of nRF SoCs","homepage": "https://github.com/NordicSemiconductor/pc-nrfconnect-programmer","url": "https://developer.nordicsemi.com/.pc-tools/nrfconnect-apps/pc-nrfconnect-programmer"},"pc-nrfconnect-linkmonitor": {"displayName": "LTE Link Monitor","description": "Link monitor and AT command terminal","homepage": "https://github.com/NordicSemiconductor/pc-nrfconnect-linkmonitor","url": "https://developer.nordicsemi.com/.pc-tools/nrfconnect-apps/pc-nrfconnect-linkmonitor"},"pc-nrfconnect-tracecollector": {"displayName": "Trace Collector","description": "Capture nRF91 modem trace","homepage": "https://github.com/NordicSemiconductor/pc-nrfconnect-tracecollector","url": "https://developer.nordicsemi.com/.pc-tools/nrfconnect-apps/pc-nrfconnect-tracecollector"},"pc-nrfconnect-tracecollector-preview": {"displayName": "Trace Collector V2 preview","description": "EXPERIMENTAL: Capture and convert nRF91 modem traces","url": "https://developer.nordicsemi.com/.pc-tools/nrfconnect-apps/pc-nrfconnect-tracecollector-preview"},"pc-nrfconnect-gettingstarted": {"displayName": "Getting Started Assistant","description": "Guide to set up the nRF Connect SDK","homepage": "https://github.com/NordicSemiconductor/pc-nrfconnect-gettingstarted","url": "https://developer.nordicsemi.com/.pc-tools/nrfconnect-apps/pc-nrfconnect-gettingstarted"},"pc-nrfconnect-dtm": {"displayName": "Direct Test Mode","description": "RF PHY testing of Bluetooth Low Energy devices","homepage": "https://github.com/NordicSemiconductor/pc-nrfconnect-dtm","url": "https://developer.nordicsemi.com/.pc-tools/nrfconnect-apps/pc-nrfconnect-dtm"},"pc-nrfconnect-toolchain-manager": {"displayName": "Toolchain Manager","description": "Install and manage tools to develop with the nRF Connect SDK (NCS)","homepage": "https://github.com/NordicPlayground/pc-nrfconnect-toolchain-manager","url": "https://developer.nordicsemi.com/.pc-tools/nrfconnect-apps/pc-nrfconnect-toolchain-manager"}
}

nRF Connect for Desktop下载程序初探_wxlscm的博客-CSDN博客

但是现在还是在nRF connect中无法检测到Jlink

安装nrf-connect 和 nrf-command-line-tools后添加nrfjprog路径 C:\Program Files\Nordic Semiconductor\nrf-command-line-tools\bin\ 到系统环境变量 PATH (计算机属性->高级->环境变量->PATH)中

cmd中

nrfjprog --eraseall 擦除芯片

nrfjprog --verify --program your_softdevice_hex_file

keil编译下载应用程序

二、

蓝牙串口透传记录

1) 修改nordic串口透传服务为sig标准服务：

首先设置串口透传服务为sig标准服务

#define BLE_UUID_TYPE_BLE           0x01 // Bluetooth SIG UUID (16-bit) ble_types.h
#define NUS_SERVICE_UUID_TYPE           BLE_UUID_TYPE_BLE //main.c
#define NUS_BASE_UUID                  {{0xfb, 0x34, 0x9b, 0x5f, 0x80, 0x00, 0x00, 0x80, 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}}//   ble_nus.c

ble_nus.h 中设置服务uuid

ble_nus.c 中设置uuid of tx rx characteristic

#define BLE_UUID_NUS_TX_CHARACTERISTIC 0xffe1               /**< The UUID of the TX Characteristic. */
#define BLE_UUID_NUS_RX_CHARACTERISTIC 0xffe2               /**< The UUID of the RX Characteristic. */

Nordic的NUS服务工程修改UUID为SIG UUID

nrf52832 sdk 排错定位：

使能RTT LOG

keil添加DEBUG宏在J-LINK RTT VIEWER中可以收到debug打印信息

使能串口不使能RTT可以将debug信息打印至串口

debug排错定位参考

协议栈内存分配不够问题

Insufficient RAM allocated for the SoftDevice with Relay Application - Nordic Q&A - Nordic DevZone - Nordic DevZonex

问题:keil下载程序到nrf52810中后有广播可以正常提供蓝牙服务，断电再上电后无蓝牙服务，keil再下载又有

DEBUG 下在jlink rtt viewer中收到打印debug信息报错位置在：

还有报错信息 NRF_ERROR_DATA_SIZE 12

nordic查找APP_UART_COMMUNICATION_ERROR

APP_UART_COMMUNICATION_ERROR

修改uart rx引脚为上拉，在nrfx_uart.c中修改

nrf_gpio_cfg_input(p_config->pselrxd, NRF_GPIO_PIN_PULLUP);

还是报错，发现uart rx 用的是dma，在nrfx_uarte.c中修改

nrf_gpio_cfg_input(p_config->pselrxd, NRF_GPIO_PIN_PULLUP);

程序运行正常，掉电上电后运行正常。分析问题原因是nordic sdk在初始化串口 rx 时设置nopull

在上电nrf52810时会对 rx 造成干扰，引起 APP_UART_COMMUNICATION_ERROR 报错

参考：

nRF52832频繁打印“APP_UART_COMMUNICATION_ERROR”的问题

nRF52832 频繁进入 app_error_fault_handler 定位方法

4）

上电设置ble fast advertising，设置由快速广播切换到慢速再到sleep

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_GENERAL_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.config.ble_adv_slow_enabled  = true;init.config.ble_adv_slow_interval = APP_ADV_INTERVAL1;init.config.ble_adv_slow_timeout  = 0;// 0不进入sleep，一直慢速广播；任意非0时间代表慢速广播时长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);
}

ble_nus.c中添加串口透传 rx tx 的 proprietary

// 添加RX特性memset(&add_char_params, 0, sizeof(add_char_params));add_char_params.uuid                     = BLE_UUID_NUS_RX_CHARACTERISTIC;//特性UUIDadd_char_params.uuid_type                = p_nus->uuid_type;//UUID类型add_char_params.max_len                  = BLE_NUS_MAX_RX_CHAR_LEN;//最大的数据长度add_char_params.init_len                 = sizeof(uint8_t);//初始化数据长度add_char_params.is_var_len               = true;//可变数据长度add_char_params.char_props.write         = 1;//写属性add_char_params.char_props.write_wo_resp = 1;//没有回复的写add_char_params.read_access  = SEC_OPEN;//安全级别add_char_params.write_access = SEC_OPEN;err_code = characteristic_add(p_nus->service_handle, &add_char_params, &p_nus->rx_handles);if (err_code != NRF_SUCCESS){return err_code;}// 添加TX特性/**@snippet [Adding proprietary characteristic to the SoftDevice] */memset(&add_char_params, 0, sizeof(add_char_params));add_char_params.uuid              = BLE_UUID_NUS_TX_CHARACTERISTIC;//特性UUIDadd_char_params.uuid_type         = p_nus->uuid_type;//UUID类型add_char_params.max_len           = BLE_NUS_MAX_TX_CHAR_LEN;//最大数据长度add_char_params.init_len          = sizeof(uint8_t);//初始化长度add_char_params.is_var_len        = true;//数据长度可变add_char_params.char_props.notify = 1;//通知add_char_params.read_access       = SEC_OPEN; add_char_params.write_access      = SEC_OPEN;add_char_params.cccd_write_access = SEC_OPEN;//主机描述符

3个设置参数

#define APP_ADV_INTERVAL                40                                          /**< The advertising interval (in units of 0.625 ms. This value corresponds to 25 ms). 快速广播*/
#define APP_ADV_INTERVAL1               80//慢速广播间隔
#define SLAVE_LATENCY                   0 //从机潜伏时间间隔数

5）

蓝牙连接开灯，断开灭灯，在处理ble event的回调函数中ble_evt_handler

        case BLE_GAP_EVT_CONNECTED:NRF_LOG_INFO("Connected");err_code = bsp_indication_set(BSP_INDICATE_CONNECTED);//led onAPP_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");// LED indication will be changed when advertising starts.bsp_board_led_off(0);//led offm_conn_handle = BLE_CONN_HANDLE_INVALID;break;

6）

关于官方蓝牙透传demo接收完成判断问题：

if ((data_array[index - 1] == '\n') || (data_array[index - 1] == '\r') ||(index >= m_ble_nus_max_data_len))//244字节

是通过接收到回车换行或者接收长度大于244字节来判断接收是否完成

更通用情况修改：

加定时器，超过30ms没接收到数据就判断接收完成

1.定义定时器句柄和超时处理函数

APP_TIMER_DEF(my_timer_id);   //定义timer ID
uint16_t my_timer_ms_count;
bool my_timer_running;
static void my_timeout_handler(void *p_context)
{//add your code heremy_timer_ms_count++;}

2.创建用户定时器

uint32_t err_code = app_timer_create(&my_timer_id, APP_TIMER_MODE_REPEATED, my_timeout_handler);
APP_ERROR_CHECK(err_code);
my_timer_running = false;

3.串口接收event中处理代码，注意这里app_uart_get读取串口数据一定要放在前面，否则接收不到第一个字节

case APP_UART_DATA_READY://串口接收中断，PC发数据给从机UNUSED_VARIABLE(app_uart_get(&data_array[index]));index++;if(!my_timer_running){err_code = app_timer_start(my_timer_id, APP_TIMER_TICKS(10), NULL);APP_ERROR_CHECK(err_code);my_timer_running = true;}my_timer_ms_count = 0;

4.main中循环判断是否接收完成

if ((my_timer_ms_count >= 3) || (index >= m_ble_nus_max_data_len))//244字节{err_code = app_timer_stop(my_timer_id);APP_ERROR_CHECK(err_code);my_timer_running = false;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);//从机数据上传函数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;}

7）

添加对串口AT指令AT+ADDR?\r\n的响应

                 if(!strncmp("AT+ADDR?\r\n", (char *)data_array, 10)){for (uint32_t i = 1; i < sizeof(specific_addr); i++){do{err_code = app_uart_put(*((uint8_t *)&specific_addr+i));//PC机打印，主机发过来的数据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);}}else{do{uint16_t length = (uint16_t)index;err_code = ble_nus_data_send(&m_nus, data_array, &length, m_conn_handle);//从机数据上传函数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);}memset(data_array, 0, BLE_NUS_MAX_DATA_LEN);

比较函数strstr改为strncmp，严格对比

添加清BUFF函数，避免意外如第一次发AT_ADDR?\r\n第二次发AT+ADD也能读mac

mac地址设置服务名设置等待补充

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