nordic nrf5340使用笔记
1. 使用hex文件烧录带网络核固件：
需要使用到两个hex，一个merge.hex,另一个merge_network.hex，创建以下烧录脚本：
nrfjprog --recover
nrfjprog -f NRF53 --recover --coprocessor CP_NETWORK
nrfjprog --program M_PI2503_S_WRS02_MCU_NETWORK_V1.0.0.63_20250709.hex --sectorerase --verify --reset -f NRF53 --coprocessor CP_NETWORK
nrfjprog --program M_PI2503_S_WRS02_MCU_APPLICATION_V1.0.0.63_20250709.hex --sectorerase --verify --reset -f NRF53 --coprocessor CP_APPLICATION
PAUSE
2. ble修改mac地址
/**
* @brief ble slaveset ble mac
* @return ble mac set success or not ，0:success, others:fail
*/
static int set_bd_addr(uint8_t *mac_addr)
{
int err = 0;
struct net_buf *buf;
sdc_hci_cmd_vs_zephyr_write_bd_addr_t *cmd_params;
buf = bt_hci_cmd_create(SDC_HCI_OPCODE_CMD_VS_ZEPHYR_WRITE_BD_ADDR,
sizeof(*cmd_params));
if (!buf)
{
printk("Could not allocate command buffer\n");
return -ENOMEM;
}
LOG_INF("mac_addr = %x-%x-%x-%x-%x-%x\n", mac_addr[0], mac_addr[1], mac_addr[2], mac_addr[3], mac_addr[4], mac_addr[5]);
cmd_params = net_buf_add(buf, sizeof(*cmd_params));
cmd_params->bd_addr[0] = mac_addr[5];
cmd_params->bd_addr[1] = mac_addr[4];
cmd_params->bd_addr[2] = mac_addr[3];
cmd_params->bd_addr[3] = mac_addr[2];
cmd_params->bd_addr[4] = mac_addr[1];
cmd_params->bd_addr[5] = mac_addr[0];
LOG_INF("bt_hci_cmd_send_sync \n");
err = bt_hci_cmd_send_sync(SDC_HCI_OPCODE_CMD_VS_ZEPHYR_WRITE_BD_ADDR, buf, NULL);
LOG_INF("err: %d \n", err);
if (err)
{
LOG_INF("err: %d \n", err);
return err;
}
LOG_INF("Successfully set bd addr \n");
return 0;
}
修改前要停止广播，修改后要重新广播：
int ble_set_mac(uint8_t *MAC)
{
int err = 0;
// 如果蓝牙已连接，则先断开蓝牙,并停止广播
if (ble_connected_state_get())
{
bt_conn_disconnect(current_conn, BT_HCI_ERR_REMOTE_USER_TERM_CONN);
}
// 停止广播
bt_le_adv_stop();
// 修改蓝牙MAC
set_bd_addr(MAC);
if (IS_ENABLED(CONFIG_SETTINGS))
{
settings_load();
}
// ble start advertising
// err = bt_le_adv_start(BT_LE_ADV_CONN, (const struct bt_data *)ad, ARRAY_SIZE(ad), sd, ARRAY_SIZE(sd));
err = bt_le_adv_start(&adv_param, (const struct bt_data *)ad, ARRAY_SIZE(ad), sd, ARRAY_SIZE(sd));
if (err)
{
LOG_ERR("Advertising failed to start (err %d)", err);
}
return err;
}
3. ble添加白名单功能：
首先在prj.conf中添加以下配置：
CONFIG_BT_FILTER_ACCEPT_LIST=y
参考代码：
int add_device_to_whitelist(const char *addr_str)
{
int err;
bt_addr_le_t addr;
// 将字符串地址转换为bt_addr_le_t
err = bt_addr_le_from_str(addr_str, "public", &addr);
if (err)
{
printk("Invalid address: %s\n", addr_str);
return err;
}
adv_param = *BT_LE_ADV_CONN_ONE_TIME;
/* adv_param.options |= BT_LE_ADV_OPT_FILTER_SCAN_REQ; */
adv_param.options |= BT_LE_ADV_OPT_FILTER_CONN;
/*此处添加白名单地址*/
err = bt_le_filter_accept_list_add(&addr);
if (err)
{
LOG_ERR("Add to white list failed (err %d)", err);
}
else
{
LOG_ERR("Add to white list success : %s\n", addr_str);
}
return 0;
}
4. 设置mcuboot签名功能，升级后校验key，失败回滚
参考：https://www.cnblogs.com/HW-liu/p/17480372.html
5. NRF5340 设置蓝牙TX power 功率
prj.conf添加配置（如设置为3dB）：CONFIG_BT_CTLR_TX_PWR_PLUS_3=y
6. nrf5340 pin0.11等引脚在app核不能使用的问题
因为pin0.11引脚被net核用做调试引脚，所以在app核无法使用，使用下面方法解决此问题，让app核继续可以使用pin0.11。
NRF_P0_S->PIN_CNF[11] = (GPIO_PIN_CNF_MCUSEL_AppMCU << GPIO_PIN_CNF_MCUSEL_Pos);
7. nrf5340 ncs使用math库：
使用vs code 打开工程，点击Kconfig->ARM Options->C Library->C Library Implementation ->Newlib C library
然后点击Apply。
或者直接在prj.conf中添加配置：CONFIG_NEWLIB_LIBC=y
8. nrf5340 ncs 编译报more undefined references to `__aeabi_d2iz' follow错误？
此错误是ncs不支持浮点数（float）类型，使用vs code 打开工程，点击Kconfig->ARM Options->Floating Point Option
然后点击Apply.
或者在prj.conf中添加配置：、
CONFIG_FPU=y
CONFIG_ARM_MPU=y
9. 编译器报错：ninja:error: mkdir(xxxx):No such file or directory
把项目目录改短一点
10. ncs 添加检测cpu占有率检测功能？
在prj.conf添加以下配置
CONFIG_THREAD_ANALYZER=y
CONFIG_THREAD_ANALYZER_AUTO=y
CONFIG_THREAD_ANALYZER_RUN_UNLOCKED=y
CONFIG_THREAD_ANALYZER_USE_PRINTK=y
CONFIG_THREAD_ANALYZER_AUTO_INTERVAL=20
11. 主机连接时出现”Found valid connection in disconnected state“错误信息？
是由于在connect中断中重复对default_conn = bt_conn_ref(conn)赋值，导致存在两个连接信息。因此将connect中断中的default_conn = bt_conn_ref(conn)删除.
12. 同时使用ble和nvs时，nvs可能写失败？
原因是蓝牙nvs区域和用户区域重叠，需要通过 static pm文件约束。
在static pm中添加且仅添加以下配置：
user_storage:
address: 0xfe000
size: 0x2000
end_address: 0x100000
placement:
before:
- end
region: flash_primary
同时nvs的初始化代码参考如下：
#define STORAGE_NODE_LABEL user_storage
static struct nvs_fs UserFs;
int nvs_driver_init(void)
{
int rc;
struct flash_pages_info info;
UserFs.flash_device = FLASH_AREA_DEVICE(STORAGE_NODE_LABEL);
if (!device_is_ready(UserFs.flash_device)) {
printk("Flash device %s is not ready\n", UserFs.flash_device->name);
return -EINVAL;
}
UserFs.offset = FLASH_AREA_OFFSET(STORAGE_NODE_LABEL);
rc = flash_get_page_info_by_offs(UserFs.flash_device, UserFs.offset, &info);
if (rc) {
printk("Unable to get page info\n");
return -EINVAL;
}
UserFs.sector_size = info.size;
UserFs.sector_count = 2U;
LOG_INF("NVS sector size=%d sector count=%d\n", UserFs.sector_size, UserFs.sector_count);
rc = nvs_mount(&UserFs);
if (rc)
{
LOG_ERR("NVS Init failed %d", rc);
return -EINVAL;
}
return 0;
}
int nvs_driver_write(uint16_t fsID, uint8_t *data, int len)
{
int err = 0;
k_mutex_lock(&NvsWrite_Mutex, K_MSEC(1000));
err = nvs_write(&UserFs, fsID, data, len);
if (err<0)
{
LOG_ERR("nvs write item id:%d fail, err=%d", fsID, err);
return err;
}
k_mutex_unlock(&NvsWrite_Mutex);
return 0;
}
//nvs read api
int nvs_driver_read(uint16_t fsID, uint8_t *data, int len)
{
int err = 0;
k_mutex_lock(&NvsRead_Mutex, K_MSEC(1000));
/* KEY_ID is used to store a key, lets see if we can read it from flash
*/
err = nvs_read(&UserFs, fsID, data, len);
if (err != len)
{ /* item was found, show it */
LOG_ERR("nvs read item id:%d fail, err=%d", fsID, err);
return err;
}
k_mutex_unlock(&NvsRead_Mutex);
return 0;
}
13. nrf5340使用内部晶振配置：
在prj.conf文件中添加以下配置：
ONFIG_CLOCK_CONTROL_NRF_K32SRC_RC=y
CONFIG_CLOCK_CONTROL_NRF_K32SRC_500PPM=y
14. 修改内部匹配电容配置
CONFIG_SOC_HFXO_CAP_INT_VALUE_X2=20
CONFIG_SOC_HFXO_CAP_DEFAULT=n
CONFIG_SOC_HFXO_CAP_EXTERNAL=n
CONFIG_SOC_HFXO_CAP_INTERNAL=y
15. 27.Ble带宽低，只有1-2KB？
在netcore添加以下配置，带宽正常最大约120KB
CONFIG_BT_CTLR_SDC_CENTRAL_ACL_EVENT_SPACING_DEFAULT=15000
CONFIG_BT_CTLR_SDC_MAX_CONN_EVENT_LEN_DEFAULT=15000
CONFIG_BT_CTLR_DATA_LENGTH_MAX=251
CONFIG_BT_BUF_ACL_TX_SIZE=502
CONFIG_BT_BUF_ACL_RX_SIZE=502
CONFIG_BT_L2CAP_TX_MTU=247
CONFIG_BT_MAX_CONN=1
16. 蓝牙例程编译后没有带网络核工程？
在build configuration里 extra cmake加上以下配置：
-DSB_CONFIG_NETCORE_HCI_IPC=y
17.使用vscode编译nrf5340项目工程超级慢:
在任务管理器中kill掉以下进程：MSPCManagerService
浙公网安备 33010602011771号