LoRa API手册

1. 网络相关参数配置及控制API

1.1 入网模式(OTAA、ABP)

1.1.1 设置

/*

功能:设置入网模式

Input Param:

​ lorawan_joinmethod_e mode: 目前仅支持OTAA

0 - OTAA模式; 1 - ABP模式

Return Param:

​ LORAWAN_API_STATUS_OK: 成功;

​ LORAWAN_API_STATUS_BUSY:协议栈处理忙;

​ LORAWAN_API_STATUS_PARAMETER_INVALID: 传参错误;

*/

int lorawan_set_joinmode(lorawan_joinmethod_e mode);

1.1.2 获取

/*

功能:获取当前入网模式

Return Param:

​ lorawan_joinmethod_e mode: 目前仅支持OTAA

​ 0 - OTAA模式; 1 - ABP模式

*/

lorawan_joinmethod_e lorawan_get_joinmode(void);

1.2 DevEUI(OTAA入网)

1.2.1 设置

/*

功能:设置节点DevEUI

Input Param:

​ uint8_t *deveui: 节点DevEUI

​ int len: 节点DevEUI长度

Return Param:

​ LORAWAN_API_STATUS_OK : 成功;

​ LORAWAN_API_STATUS_PARAMETER_INVALID: 传参错误;

*/

int lorawan_set_deveui(uint8_t *deveui, int len);

1.2.2 获取

/*

功能:获取节点DevEUI

Input Param:

​ uint8_t *deveui: 接收DevEUI的buffer地址

​ int size: buffer size

Return Param:

​ 获取数据的长度

*/

int lorawan_get_deveui(uint8_t *deveui, int size);

1.3 AppEUI(OTAA入网)

1.3.1 设置

/*

功能:设置节点AppEUI

Input Param:

​ uint8_t *appeui: 节点AppEUI

​ int len: 节点AppEUI长度

Return Param:

​ LORAWAN_API_STATUS_OK : 成功;

​ LORAWAN_API_STATUS_PARAMETER_INVALID: 传参错误;

*/

int lorawan_set_appeui(uint8_t *appeui, int len);

1.3.2 获取

/*

功能:获取节点AppEUI

Input Param:

​ uint8_t *appeui: 接收AppEUI的buffer地址

​ int size: buffer size

Return Param:

​ 获取数据的长度

*/

int lorawan_get_appeui(uint8_t *appeui, int size);

1.4 AppKey(OTAA入网)

1.4.1 设置

/*

功能:设置节点AppKey

Input Param:

​ uint8_t *appkey: 节点AppKey

​ int len: 节点AppKey长度

Return Param:

​ LORAWAN_API_STATUS_OK : 成功;

​ LORAWAN_API_STATUS_PARAMETER_INVALID: 传参错误;

*/

int lorawan_set_appkey(uint8_t *appkey, int len);

1.4.2 获取

/*

功能:获取节点AppKey

Input Param:

​ uint8_t *appkey: 接收AppEUI的buffer地址

​ int size: buffer size

Return Param:

​ 获取数据的长度

*/

int lorawan_get_appkey(uint8_t *appkey, int size);

1.5 同频、异频模式

1.5.1 设置

/*

功能:设置节点同频、异频模式

Input Param:

​ lorawan_freqmode_e mode:

​ 1 - 同频模式; 2 - 异频模式

Return Param:

​ LORAWAN_API_STATUS_OK : 成功;

​ LORAWAN_API_STATUS_PARAMETER_INVALID: 传参错误;

*/

int lorawan_set_freqmode(lorawan_freqmode_e freqmode);

1.5.2 获取

/*

功能:获取节点节点同频、异频模式

Return Param:

​ lorawan_freqmode_e mode:

​ 1 - 同频模式; 2 - 异频模式

*/

lorawan_freqmode_e lorawan_get_freqmode(void);

2 控制和状态命令API

2.1 Class类型

2.1.1 设置

/*

功能:设置节点LoRaWAN Class类型,目前仅支持Class A

Input Param:

​ int8_t class:

​ 0 - Class A; 1 - Class B;2 - Class C

Return Param:

​ LORAWAN_API_STATUS_OK : 成功;

​ LORAWAN_API_STATUS_PARAMETER_INVALID: 传参错误;

*/

int lorawan_set_class(int8_t class);

2.1.2 获取

/*

功能:获取节点LoRaWAN Class类型

Return Param:

​ 0 - Class A; 1 - Class B;2 - Class C

*/

int8_t lorawan_get_class(void);

2.2 获取节点当前入网状态

/*

功能:获取入网状态

Return Param:

​ LORAWAN_API_STATUS_OK : 入网成功;

​ LORAMAC_STATUS_NO_NETWORK_JOINED:未入网; */

int lorawan_get_joinstatus(void);

2.3 节点入网

/*

功能:节点发起入网请求

Return Param:

​ LORAWAN_API_STATUS_BUSY:协议栈处理忙

​ LORAWAN_API_STATUS_NO_NETWORK_JOINED: 入网失败

*/

int lorawan_open(void);

2.4 清除节点入网状态

/*

功能:清除节点入网状态

Return Param:

​ LORAWAN_API_STATUS_OK: 成功;

​ LORAWAN_API_STATUS_BUSY:协议栈处理忙;

*/

int lorawan_close( void);

2.5 入网参数配置

2.5.1 设置

/*

功能:入网请求失败时,尝试次数及间隔的配置

Input Param:

​ lorawan_joinparams_t *joinparams:

​ typedef struct {

​ bool autojoin; //入网失败时,是否自动重试

​ uint8_t joininterval; //入网请求失败时,发送间隔,单位: 秒

​ uint8_t jointrials; //入网请求最大发送次数(失败时)

​ } lorawan_joinparams_t;

Return Param:

​ LORAWAN_API_STATUS_OK : 成功;

​ LORAWAN_API_STATUS_PARAMETER_INVALID: 传参错误;

*/

int lorawan_set_joinparams( lorawan_joinparams_t *joinparams);

2.5.2 获取

/*

功能:获取入网请求配置参数

Input Param:

​ lorawan_joinparams_t *joinparams:

​ typedef struct {

​ bool autojoin;

​ uint8_t joininterval;

​ uint8_t jointrials;

​ } lorawan_joinparams_t;

Return Param:

​ LORAWAN_API_STATUS_OK : 成功;

​ LORAWAN_API_STATUS_PARAMETER_INVALID: 传参错误;

*/

int lorawan_get_joinparams(lorawan_joinparams_t *joinparams);

3 数据收发API

3.1 LoRaWAN API

3.1.1 数据发送(同步)

/*

Input Param:

​ lora_appdata_t *appdata:

​ typedef struct {

​ uint8_t *buff; //发送数据

​ uint8_t buffsize; 发送数据长度 要求<= 51

​ uint8_t port; 发送端口号

​ } lora_appdata_t;

Return Param:

​ LORAWAN_API_STATUS_BUSY:协议栈处理忙;

​ LORAWAN_API_STATUS_PARAMETER_INVALID: 传参错误;

​ LORAWAN_API_STATUS_LENGTH_ERROR:数据长度错误,大于51(LinkWAN);

​ LORAWAN_API_STATUS_NO_NETWORK_JOINED : 未入网

​ LORAWAN_API_EVENT_INFO_STATUS_OK: 消息发送成功

​ > LORAWAN_API_EVENT_INFO_STATUS_OK : 失败

*/

int lorawan_send(lora_appdata_t *appdata);

3.1.2 设置应用端口号

3.1.2.1 设置

/*

功能:设置应用端口号

Input Param:

​ uint8_t port: 1~223

Return Param:

​ LORAWAN_API_STATUS_OK : 成功;

​ LORAWAN_API_STATUS_PARAMETER_INVALID: 传参错误;

*/

int lorawan_set_appport(uint8_t port);

3.1.2.2 获取

/*

功能:获取当前应用端口号

Return Param:

​ 1~223

*/

uint8_t lorawan_get_appport(void);

3.1.3 数据发送参数配置

3.1.3.1 设置

/*

功能:设置发送数据类型及尝试发送次数

Input Param:

​ lorawan_sendparams_t *sendparams:

​ typedef struct {

​ lorawan_msgtype_e msgtype; //0 - unconfirm包;1 - confirm包

​ uint8_t nbtrails; //数据最大发送次数

​ } lorawan_sendparams_t;

Return Param:

​ LORAWAN_API_STATUS_OK : 成功;

​ LORAWAN_API_STATUS_PARAMETER_INVALID: 传参错误;

*/

int lorawan_set_sendparams(lorawan_sendparams_t *sendparams);

3.1.3.2 获取

/*

功能:获取数据发送参数配置

Input Param:

​ lorawan_sendparams_t *sendparams:

​ typedef struct {

​ lorawan_msgtype_e msgtype;

​ uint8_t nbtrails;

​ } lorawan_sendparams_t;

Return Param:

​ LORAWAN_API_STATUS_OK : 成功;

​ LORAWAN_API_STATUS_PARAMETER_INVALID: 传参错误;

*/

int lorawan_get_sendparams(lorawan_sendparams_t *sendparams);

3.1.4 数据接收

/*

Input Param:

​ lora_appdata_t *appdata:

​ typedef struct {

​ uint8_t *buff; //接收数据

​ uint8_t buffsize; 接收数据长度,传进去是buffer size,返回接收到的数据长度

​ uint8_t port; 接收端口号

​ } lora_appdata_t;

Return Param:

​ LORAWAN_API_STATUS_ERROR: 协议栈未接收到数据

​ LORAWAN_API_EVENT_INFO_STATUS_OK: 数据接收成功

> LORAWANAPI_EVENT_INFO_STATUS_OK : 数据接收失败,参见[返回值说明](#返回值说明)

*/

int lorawan_recv(lora_appdata_t *appdata)

3.2 Radio API

3.2.1 Radio回调注册

/*

功能:节点配置lora发送参数

Input Param:

​ RadioEvents_t *radioEvents:

​ typedef struct

​ {

​ /*!

​ * \brief Tx Done callback prototype.

​ */

​ void ( *TxDone )( void );

​ /*!

​ * \brief Tx Timeout callback prototype.

​ */

​ void ( *TxTimeout )( void );

​ /*!

​ * \brief Rx Done callback prototype.

​ *

​ * \param [IN] payload Received buffer pointer

​ * \param [IN] size Received buffer size

​ * \param [IN] rssi RSSI value computed while receiving the frame [dBm]

​ * \param [IN] snr Raw SNR value given by the radio hardware

​ * FSK : N/A ( set to 0 )

​ * LoRa: SNR value in dB

​ */

​ void ( RxDone )( uint8_t payload, uint16_t size, int16_t rssi, int8_t snr );

​ /*!

​ * \brief Rx Timeout callback prototype.

​ */

​ void ( *RxTimeout )( void );

​ /*!

​ * \brief Rx Error callback prototype.

​ */

​ void ( *RxError )( void );

}RadioEvents_t;

Return Param:

0 - 成功; 1 - 参数错

*/

int radiolora_init(RadioEvents_t *radioEvents)

3.2.2 数据发送参数

/*

功能:节点配置lora发送参数

Input Param:

​ uint32_t freq: 信道所在的频点

​ int8_t tx_power: SX1262/8的发射功率, 范围: 15~22 dBm

​ uint8_t bandwidth: 信道带宽,

​ 范围: 0 ~ 2;

​ 0 - 125kHZ

​ 1 - 200kHZ

​ 2 - 250kHZ

​ uint8_t spreadfactor: 扩频因子

​ 范围: 12 ~ 7, 对应扩频因子SF12 ~ SF7

Return Param:

0 - 成功;1 - 参数错

*/

int radiolora_txconfig(uint32_t freq, int8_t tx_power, uint32_t bandwidth, uint32_t spreadfactor )

3.2.3 数据发送

/*

功能:节点使用lora发送数据

Input Param:

​ uint8_t *payload: 发送数据

​ uint8_t len: 发送数据长度

Return Param:

0 - 成功; 1 - 参数错

*/

int radiolora_tx(int8_t *payload, uint8_t len)

3.2.4 数据接收参数

/*

功能:节点配置lora接收参数

Input Param:

​ uint32_t freq: 信道所在的频点

​ uint32_t bandwidth: 信道带宽

​ uint32_t spreadfactor: 扩频因子

​ 范围: 12 ~ 7, 对应扩频因子SF12 ~ SF7

​ uint16_t preambleLen: 前导码长度 8/12

​ uint8_t fixLen: 数据长度为固定长度或可变长度

​ 0 - 可变长度; 1 - 固定长度

​ uint8_t payloadLen: 数据包长度

Return Param:

​ 0 - 成功; 1 - 参数错

​ */

int radiolora_rxconfig(uint32_t freq, uint32_t bandwidth, uint32_t spreadfactor,                        uint16_t preambleLen, uint8_t fixLen, uint8_t payloadLen )

3.2.5 数据接收

/*

功能:节点使用lora接收数据

Input Param:

​ uint32_t timeout: 接收超时;单位:ms,

​ 0 : wait forever

Return Param:

​ 0 - 成功; 1 - 参数错

*/

int radiolora_rx(uint32_t timeout)

4 MAC配置API

4.1 发送数据速率

4.1.1 设置

/*

功能:设置节点发送数据速率

Input Param:

​ uint8_t datarate:

​ 范围:0~5 (SF12 ~ SF7)

Return Param:

​ LORAWAN_API_STATUS_OK: 成功;

​ LORAWAN_API_STATUS_BUSY:协议栈处理忙;

​ LORAWAN_API_STATUS_DATARATE_INVALID:DR设置不合法

​ LORAWAN_API_STATUS_FREQ_AND_DR_INVALID:ADR已使能,禁止设置DR

*/

int lorawan_set_txdatarate(uint8_t datarate);

4.1.2 获取

/*

功能:获取当前发送数据速率

Return Param:

​ 范围:0~5 (SF12 ~ SF7)

*/

int8_t lorawan_get_txdatarate(void);

4.2 发射功率

4.2.1 设置

/*

功能:设置节点发射功率

Input Param:

​ uint8_t txpower: 发射功率,

​ CN470的取值范围:

序号 功率值(dBm)
0 17
1 15
2 13
3 11
4 9
5 7
6 5
7 3

Return Param:

​ LORAWAN_API_STATUS_OK: 成功;

​ LORAWAN_API_STATUS_BUSY:协议栈忙

*/

int lorawan_set_txpower(uint8_t txpower);

4.2.2 获取

/*

功能:获取当前发射功率

Return Param:

​ 参考如上CN470发射功率取值范围。

*/

uint8_t lorawan_get_txpower(void);

4.3 ADR功能

4.3.1 设置

/*

功能:开启、关闭ADR功能

Input Param:

​ bool enable:

​ True: 开启ADR功能; False: 关闭ADR功能

Return Param:

​ LORAWAN_API_STATUS_OK: 成功;

​ LORAWAN_API_STATUS_BUSY:协议栈处理忙

​ LORAWAN_API_STATUS_PARAMETER_INVALID: 传参错误;

*/

int lorawan_set_adr(bool enable);

4.3.2 获取

/*

功能:ADR开启状态

Return Param:

​ True: ADR开启; False: ADR关闭

*/

bool lorawan_get_adr(void);

4.4 RX1窗口时延

4.4.1 设置

/*

功能:设置节点RX1 window 时延

Input Param:

​ uint32_t rx1windowdelay:

​ 单位:秒, 范围0 ~ 15秒

Return Param:

​ LORAWAN_API_STATUS_OK: 成功;

​ LORAWAN_API_STATUS_BUSY:协议栈处理忙

​ LORAWAN_API_STATUS_PARAMETER_INVALID: 传参错误;

*/

int lorawan_set_rx1delay(uint32_t rx1delay);

4.4.2 获取

/*

功能:获取节点RX1 window 开启时延

Return Param:

​ 取值范围:0 ~ 15 单位:秒

*/

uint32_t lorawan_get_rx1delay(void);

4.5 接收窗口RX1、RX2配置

4.5.1 设置

/*

功能:设置节点RX1、RX2参数

Input Param:

​ uint8_t rx1droffset: RX1 window的DR偏移 范围:0 ~ 3

​ uint8_t rx2datarate: RX2 window的DR 范围:0 ~ 5

​ uint32_t rx2freq: RX2 window的频点 范围:CN470 ~ CN510, 说明详见LoRaWAN协议

Return Param:

​ LORAWAN_API_STATUS_OK: 成功;

​ LORAWAN_API_STATUS_BUSY:协议栈处理忙

​ LORAWAN_API_STATUS_PARAMETER_INVALID: 传参错误;

*/

int lorawan_set_rxwindownparams(uint8_t rx1droffset, uint8_t rx2datarate, uint32_t rx2freq);

4.5.2 获取

/*

功能:获取节点RX1、RX2参数

Input Param:

​ uint8_t *rx1droffset: RX1 window的DR偏移

​ uint8_t *rx2datarate: RX2 window的DR

​ uint32_t *rx2freq: RX2 window的频点

Return Param:

​ LORAWAN_API_STATUS_OK: 成功;

​ LORAWAN_API_STATUS_BUSY:协议栈处理忙

*/

int lorawan_get_rxwindownparams(uint8_t *rx1droffset, uint8_t *rx2datarate, uint32_t *rx2freq)

4.6 检测频段各信道接收灵敏度

/*

功能:检测LinkWAN使用频段各信道接收灵敏度

Input Param:

​ uint8_t band: 频段编号,目前仅支持1A2频段

​ 0 - 1A1(483.9MHz~485.3MHz)

​ 1 - 1A2(485.5MHz~486.9MHz)

​ int16_t *channel_rssi: 返回RSSI值的buffer地址

​ uint8_t channel_num: buffer length; >= 8

Return Param:

​ LORAWAN_API_STATUS_OK: 成功;

​ LORAWAN_API_STATUS_PARAMETER_INVALID: 传参错误;

*/

void lorawan_get_rssi(uint8_t band, int16_t *channel_rssi, uint8_t channel_num)

4.7 链路检测

/*

功能:链路检测

Input Param:

​ uint8_t *demodmargin: 返回当前链路的Demodulation margin

​ uint8_t *nbgateways: 返回当前链路所在网络的网关数

​ int16_t *rssi: 返回当前链路的接收灵敏度

​ uint8_t *snr: 返回当前链路的SNR

Return Param:

​ LORAWAN_API_STATUS_OK: 成功;

​ LORAWAN_API_STATUS_NO_NETWORK_JOINED

*/

int lorawan_linkcheck(uint8_t *demodmargin, uint8_t *nbgateways, int16_t *rssi, uint8_t *snr)

4.8 保存当前配置参数

int lorawan_saveconfig(void)

4.9 恢复默认配置参数

int lorawan_restoreconfig(void);

5 协议栈运行

5.1 初始化

/*

功能:协议栈初始化

Input Param:

​ lora_workmode_e loramode:

​ 0 - LoRaWAN模式, 初始化LoRaWAN协议栈

​ 1 - Radio模式,传参非法时默认Radio模式

*/

void lora_system_init(lora_workmode_e loramode)

5.2 运行

/*

功能:运行协议栈状态机

Input Param:

​ void *arg : 任务创建时传参,为NULL

*/

void lora_system_run(void *arg)

5.3 复位

/*

功能:协议栈复位

Input Param:

​ int8_t mode:

​ 0 - 立即复位; 1 - 发送最后一包数据,再复位

*/

void lora_system_reboot(int8_t mode)

6 返回值说明


typedef enum {

    /*!

     \* Service started successfully

     */

    LORAWAN_API_STATUS_OK = 0,

    /*!

     \* Service not started - LoRaMAC is busy

     */

    LORAWAN_API_STATUS_BUSY,

    /*!

     \* Service unknown

     */

    LORAWAN_API_STATUS_SERVICE_UNKNOWN,

    /*!

     \* Service not started - invalid parameter

     */

    LORAWAN_API_STATUS_PARAMETER_INVALID,

    /*!

     \* Service not started - invalid frequency

     */

    LORAWAN_API_STATUS_FREQUENCY_INVALID,

    /*!

     \* Service not started - invalid datarate

     */

    LORAWAN_API_STATUS_DATARATE_INVALID,

    /*!

     \* Service not started - invalid frequency and datarate

     */

    LORAWAN_API_STATUS_FREQ_AND_DR_INVALID,

    /*!

     \* Service not started - the device is not in a LoRaWAN

     */

    LORAWAN_API_STATUS_NO_NETWORK_JOINED,

    /*!

     \* Service not started - payload length error

     */

    LORAWAN_API_STATUS_LENGTH_ERROR,

    /*!

     \* Service not started - the specified region is not supported

     \* or not activated with preprocessor definitions.

     */

    LORAWAN_API_STATUS_REGION_NOT_SUPPORTED,

    /*!

     \* The application data was not transmitted

     \* because prioritized pending MAC commands had to be sent.

     */

    LORAWAN_API_STATUS_SKIPPED_APP_DATA,

    /*!

     \* ToDo

     */

    LORAWAN_API_STATUS_DUTYCYCLE_RESTRICTED,

    /*!

     *

     */

    LORAWAN_API_STATUS_NO_CHANNEL_FOUND,

    /*!

     *

     */

    LORAWAN_API_STATUS_NO_FREE_CHANNEL_FOUND,

     /*!

      \* ToDo

      */

    LORAWAN_API_STATUS_BUSY_BEACON_RESERVED_TIME,

     /*!

      \* ToDo

      */

    LORAWAN_API_STATUS_BUSY_PING_SLOT_WINDOW_TIME,

     /*!

      \* ToDo

      */

    LORAWAN_API_STATUS_BUSY_UPLINK_COLLISION,

    /*!

     \* An error in the cryptographic module is occurred

     */

    LORAWAN_API_STATUS_CRYPTO_ERROR,

    /*!

     \* An error in the frame counter handler module is occurred

     */

    LORAWAN_API_STATUS_FCNT_HANDLER_ERROR,

    /*!

     \* An error in the MAC command module is occurred

     */

    LORAWAN_API_STATUS_MAC_COMMAD_ERROR,

    /*!

     \* An error in the Class B module is occurred

     */

    LORAWAN_API_STATUS_CLASS_B_ERROR,

    /*!

     \* An error in the Confirm Queue module is occurred

     */

    LORAWAN_API_STATUS_CONFIRM_QUEUE_ERROR,

    /*!

     \* Undefined error occured

     */

    LORAWAN_API_STATUS_ERROR,

    /*!

     \* Service performed successfully

     */

    LORAWAN_API_EVENT_INFO_STATUS_OK,

    /*!

     \* An error occurred during the execution of the service

     */

    LORAWAN_API_EVENT_INFO_STATUS_ERROR,


    /*!

     \* A Tx timeout occurred

     */

    LORAWAN_API_STATUS_TX_TIMEOUT,

    /*!

     \* An Rx timeout occurred on receive window 1

     */

    LORAWAN_API_STATUS_RX1_TIMEOUT,

    /*!

     \* An Rx timeout occurred on receive window 2

     */

    LORAWAN_API_STATUS_RX2_TIMEOUT,

    /*!

     \* An Rx error occurred on receive window 1

     */

    LORAWAN_API_STATUS_RX1_ERROR,

    /*!

     \* An Rx error occurred on receive window 2

     */

    LORAWAN_API_STATUS_RX2_ERROR,

    /*!

     \* An error occurred in the join procedure

     */

    LORAWAN_API_STATUS_JOIN_FAIL,

    /*!

     \* A frame with an invalid downlink counter was received. The

     \* downlink counter of the frame was equal to the local copy

     \* of the downlink counter of the node.

     */

    LORAWAN_API_STATUS_DOWNLINK_REPEATED,

    /*!

     \* The MAC could not retransmit a frame since the MAC decreased the datarate. The

     \* payload size is not applicable for the datarate.

     */

    LORAWAN_API_STATUS_TX_DR_PAYLOAD_SIZE_ERROR,

    /*!

     \* The node has lost MAX_FCNT_GAP or more frames.

     */

    LORAWAN_API_STATUS_DOWNLINK_TOO_MANY_FRAMES_LOSS,

    /*!

     \* An address error occurred

     */

    LORAWAN_API_STATUS_ADDRESS_FAIL,

    /*!

     \* Message integrity check failure

    */

   LORAWAN_API_STATUS_MIC_FAIL

} lorawan_api_status;

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