[参考译文] CC3235MODASF：即使在 SNTP 时间同步后、与 TLS 的 MQTT 连接也失败（–461)

您好、Ryan、

您应该能够使用 SDK 中的 SNTP 库同步时间、但是您是否可以尝试调用 setTime()？  

void setTime(){

SlDateTime_t DateTime ={0}；
DateTime.TM_DAY =(uint32_t) 天；
DateTime.TM_mon =(uint32_t) month；
DateTime.TM_year =(uint32_t) year；
DateTime.TM_hour =(uint32_t) hour；
DateTime.TM_MIN =(uint32_t) 分钟；
DateTime.TM_sec =(uint32_t) SEC；
SL_DeviceSet (SL_DEVICE_General、SL_DEVICE_GENERAL_DATE_TIME
sizeof (SlDateTime_t)、(uint8_t *)(&DateTime))；
}

您好 Brandon、

感谢您的建议。
我尝试使用setTime()手动设置系统时间、如下所示、但结果仍然相同 (connect failed: -461)。

void setTime() {

    SlDateTime_t dateTime = {0};
    dateTime.tm_day = (uint32_t)DAY;
    dateTime.tm_mon = (uint32_t)MONTH;
    dateTime.tm_year = (uint32_t)YEAR;
    dateTime.tm_hour = (uint32_t)HOUR;
    dateTime.tm_min = (uint32_t)MINUTES;
    dateTime.tm_sec = (uint32_t)SEC;
    sl_DeviceSet(SL_DEVICE_GENERAL, SL_DEVICE_GENERAL_DATE_TIME,
                 sizeof(SlDateTime_t), (uint8_t *)(&dateTime));
    UART_PRINT("DateTime Set: %02d/%02d/%04d %02d:%02d:%02d\r\n",
               DAY, MONTH, YEAR, HOUR, MINUTES, SEC);
}

startSNTP: Current time: Tue Oct 28 19:15:06 2025
[MQTT] Initialized.
DateTime Set: 01/05/2020 04:00:00
[MQTT] Attempting connection...
connect failed: -461
MQTT CLIENT CB: DISCONNECT

有关我的项目的其他信息

我的项目最初基于 网络终端 但我已经自定义了 Wi-Fi 连接过程。
SlNetConn_start()我不使用、而是使用以下自定义 STA 启动逻辑：

static int32_t start_sta_mode(const WifiConfig_t *config)
{
    int32_t retVal;
    SlWlanSecParams_t secParams = {0};
    int32_t mode;

    UART_PRINT("[STA mode] Starting ...\r\n");

    retVal = sl_WlanSetMode(ROLE_STA);
    if (retVal < 0) {
        sl_Stop(200);
        sl_Start(0, 0, 0);
        UART_PRINT("[STA mode] Failed to set. Error: %d\r\n", retVal);
        return WIFI_START_FAILURE;
    }

    sl_Stop(200);
    mode = sl_Start(0, 0, 0);
    if (mode != ROLE_STA) {
        UART_PRINT("[STA mode] Failed to start. Mode: %d\r\n", mode);
        return WIFI_START_FAILURE;
    }

    uint8_t country[2] = {'T', 'W'};
    retVal = sl_WlanSet(SL_WLAN_CFG_GENERAL_PARAM_ID,SL_WLAN_GENERAL_PARAM_OPT_COUNTRY_CODE,sizeof(country),country);

    secParams.Type = mapSecurityType(config->security_type, NULL);
    if (secParams.Type != SL_WLAN_SEC_TYPE_OPEN) {
        secParams.Key = (signed char *)config->password;
        secParams.KeyLen = strlen(config->password);
    }
    
    if (config->ip_address_type == IP_TYPE_STATIC) {
        SlNetCfgIpV4Args_t ipV4 = {0};
        ipv4AddressParse((char*)config->ip_address, &ipV4.Ip);
        ipv4AddressParse((char*)config->subnet_mask, &ipV4.IpMask);
        ipv4AddressParse((char*)config->gateway, &ipV4.IpGateway);
        ipv4AddressParse((char*)config->primary_dns, &ipV4.IpDnsServer);
        retVal = sl_NetCfgSet(SL_NETCFG_IPV4_STA_ADDR_MODE, SL_NETCFG_ADDR_STATIC, sizeof(SlNetCfgIpV4Args_t), (uint8_t *)&ipV4);
        if (retVal < 0) {
            UART_PRINT("[STA mode] Failed to set static IP. Error: %d\r\n", retVal);
            return WIFI_START_FAILURE;
        }
    } else {
        sl_NetCfgSet(SL_NETCFG_IPV4_STA_ADDR_MODE, SL_NETCFG_ADDR_DHCP, 0, 0);
    }

    uint32_t policy = SL_WLAN_CONNECTION_POLICY(1, 0, 0, 0);
    sl_WlanPolicySet(SL_WLAN_POLICY_CONNECTION, policy, NULL, 0);

    sl_WlanProfileDel(0xFF);

    secParams.Type = mapSecurityType(config->security_type, NULL);
    if (secParams.Type != SL_WLAN_SEC_TYPE_OPEN) {
        secParams.Key = (signed char *)config->password;
        secParams.KeyLen = strlen(config->password);
    }
    retVal = sl_WlanProfileAdd((signed char *)config->ssid, strlen(config->ssid), 0, &secParams, NULL, 1, 0);
    if (retVal < 0) {
        UART_PRINT("[STA mode] Failed to add profile. Error: %d\r\n", retVal);
        return WIFI_START_FAILURE;
    }

    g_wifiManagerCB.isInitialized = true;
    sl_Stop(200);
    sl_Start(0, 0, 0);
    if (mode != ROLE_STA) {
        g_wifiManagerCB.isInitialized = false;
        UART_PRINT("[STA mode] Final restart failed. Mode: %d\r\n", mode);
        return WIFI_START_FAILURE;
    }
    
    if((config->bssid_enabled) && 
        (config->bssid[0] != 0 || config->bssid[1] != 0 || config->bssid[2] != 0 ||
        config->bssid[3] != 0 || config->bssid[4] != 0 || config->bssid[5] != 0)) 
    {
        retVal = sl_WlanConnect((signed char *)config->ssid, strlen(config->ssid), config->bssid, &secParams, NULL);
        UART_PRINT("[STA mode] Connecting to AP: %s (BSSID: %02X:%02X:%02X:%02X:%02X:%02X)...\r\n",
               config->ssid,
               config->bssid[0], config->bssid[1], config->bssid[2],
               config->bssid[3], config->bssid[4], config->bssid[5]);
    } else {
        retVal = sl_WlanConnect((signed char *)config->ssid, strlen(config->ssid), NULL, &secParams, NULL);
        UART_PRINT("[STA mode] Connecting to AP: %s...\r\n", config->ssid);
    }

    return WIFI_START_SUCCESS_CONNECTING;
}

我的问题

MQTT_IF_Connect()和之间是否存在任何已知依赖关系 SimpleLink 网络层 （即，）SlNetConn_start()？
这是否是即使 Wi-Fi 连接成功（获取 IP、SNTP 正常工作等）、TLS 也失败的原因？

如果是,你建议我修改我的项目使用,SlNetConn_start()而不是直接sl_WlanConnect()?

再次感谢您的时间和支持！

您好 Brandon、

我已经使用 CC3235SF 和 SDK 版本测试了安全 MQTT 连接simplelink_cc32xx_sdk_7_10_00_13。

• setTime()手动设置器件时间时 有效期内保护证书 （例如，2020/08/01）、MQTT 客户端能够成功连接到代理。

• 但是、当我使用startSNTP()同步 NTP 服务器的时间时、即使 MCU POSIX 时间显示正确的当前日期和时间、连接仍然会失败 (-461 (SL_ERROR_BSD_ESECDATEERROR))。

这表明、虽然setTime()有效、startSNTP()但不能正确同步 NWP (SimpleLink) 时间 用于 TLS 证书验证。

您是否有关于如何startSNTP()正确更新 NWP 时间的任何指导、以便安全 MQTT 连接无需手动即可成功setTime()？

谢谢、
Ryan