[参考译文] CC2340R5：演示广播设备角色的最小示例

您好！

您可以通过在 BLE 选项卡的 Advanced Settings 下选择 SysConfig 中的"Disable the Display Module"来删除菜单

为了进一步减少可执行文件、请在 SysConfig 中移除未使用的模块、例如 UART2。

此致、
Tanguy

这对于我的用例来说太大了、我只需要一个信标...

我注意到该 SDK 包含一个 ti/drivers/rcl/handlers/ble5.c 文件、该文件似乎提供对 BLE 补丁映像的低级访问。。  我看到其中的函数用于发出各种 BLE 命令、包括广播。。

我已经将 generic.c 处理程序与您的 rfPacketTX 示例配合使用了。。  但我不能在 SDK 中任何实际使用 ble5.c 处理程序的代码...

在这个级别的广告示例可能会解决我的问题..

您好！

我是 Tanguy 的同事。

请考虑在此处分享的类似解决方案： https://e2e.ti.com/support/wireless-connectivity/bluetooth-group/bluetooth/f/bluetooth-forum/1301556/cc2340r5-building-equivalent-of-tida00759-ble-pir-sensor

谢谢！
Toby

我要说的是、这个例子实际上是建立在 rfPacketTx 示例之上的--尽管它会将 BLE 映像加载到无线电本身、而不是 propRF (通用)映像...

更重要的是、我认为此代码将使用 generic.c RCL 处理程序...

我正在寻找一些使用 ble5.c 处理程序的人--它的命令和功能更符合 BLE 协议。。  例如、我可以将广播通道掩码传递给 RCL_Handler_BLE5_Adv 命令；在 ble5.c 中处理通道排序。

虽然这在理论上可以通过不超过基本无线电 TX/RX 来实现、但 ble5.c 中显然有额外的逻辑、我想利用它...  更重要的是、ble5.c 使用大量的无线电寄存器**特定**用于 BLE 修补程序...

这个问题很愚蠢、但 为什么 TI 随 SDK 一起提供 ble5.c (以及 ble_cs.c 和 IEEE-c)、但没有提供有关如何使用这些处理程序的示例？？？

ble5.c 旨在与 BLE 堆栈一起使用。

有关处理程序(例如 ble、generic、...)、请参阅此处的 RCL 文档： https://dev.ti.com/tirex/explore/content/simplelink_lowpower_f3_sdk_8_10_01_02/docs/rcl/html/index.html 

我已经阅读了文档和代码。。  我能不能查看 BLE 堆栈中实际使用 ble5.c 的源代码？？？

我相信我有简单的广告工作..  我不是完全确定,然而,是传递我的广播包到处理程序通过 FIFO....  我是否在 FIFO txPacket 中包含我的广播包的长度？？

我可以看到数据包正在从处理程序内的 FIFO 中删除...  但我认为它不是很指明正确的地方..

/*
 * Copyright (c) 2013-2022, Texas Instruments Incorporated
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * *  Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * *  Redistributions in binary form 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.
 *
 * *  Neither the name of Texas Instruments Incorporated nor the names of
 *    its contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER 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.
 */

/***** Includes *****/
/* Standard C Libraries */
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <limits.h>

/* TI Drivers */
#include <ti/drivers/GPIO.h>
#include <ti/drivers/rcl/RCL.h>
#include <ti/drivers/rcl/RCL_Scheduler.h>
#include <ti/drivers/rcl/commands/ble5.h>

/* SysConfig Generated */
#include "ti_ble_config.h"
#include "ti_drivers_config.h"
#include "ti_radio_config.h"


/* Packet TX Configuration */
#define MAX_LENGTH              (40U) // Max packet length
#define NUM_DATA_ENTRIES        (2U)  // Number of data entries
#define NUM_PAD_BYTES           (3U)  // Number of pad bytes
#define HDR_LEN                 (1U)

#define PACKET_INTERVAL         1000000    // Set packet interval to 500000us or 500ms


/***** Variable declarations *****/
/* RCL Commands */

static RCL_CmdBle5Advertiser advCmd = RCL_CmdBle5Advertiser_Default();
static RCL_CtxAdvertiser advCtx = RCL_CtxAdvertiser_Default();

/* RCL Client used to open RCL */
static RCL_Client rclClient;

/* Counters for RCL event callback */
volatile uint32_t gCmdDone = 0;     // Command done

/* TX packet buffer */
uint32_t packet[NUM_DATA_ENTRIES][NUM_PAD_BYTES + ((MAX_LENGTH + 10)/ 4)];


/* Adv data */
uint8_t advData[] =
{
 0x02,
 GAP_ADTYPE_FLAGS,
 GAP_ADTYPE_FLAGS_BREDR_NOT_SUPPORTED | GAP_ADTYPE_FLAGS_GENERAL,

 0x04,
  GAP_ADTYPE_LOCAL_NAME_SHORT,
  'T',
  'X',
  'N',
};


/***** Callback Functions *****/
void defaultCallback(RCL_Command *cmd, LRF_Events lrfEvents, RCL_Events rclEvents)
{
    if (rclEvents.lastCmdDone)
    {
        gCmdDone += 1;
    }
}

/***** Function definitions *****/

void *mainThread(void *arg0)
{
    /* Initialize and open RCL */
    RCL_init();

    RCL_Handle rclHandle = RCL_open(&rclClient, &LRF_config);

    advCtx.advA[0] = 0xaaaa;
    advCtx.advA[1] = 0xbbbb;
    advCtx.advA[2] = 0xcccc;

    /* Callback triggers on last command done */
    advCmd.common.runtime.callback = defaultCallback;
    advCmd.common.runtime.rclCallbackMask.value = RCL_EventLastCmdDone.value;

    advCmd.ctx = &advCtx;
    advCmd.chanMap = 0x7;
    advCmd.txPower.dBm = 0;
    advCmd.txPower.fraction = 0;

    /* Set RCL TX buffer packet to be packet buffer */
    RCL_Buffer_TxBuffer *txPacket = (RCL_Buffer_TxBuffer *)&packet;

    uint8_t val = 0;

    while(1)
    {
        /* Create packet with random payload */
        uint8_t *txData;
        txData = RCL_TxBuffer_init(txPacket, NUM_PAD_BYTES, 0, MAX_LENGTH);

        memcpy(txData, advData, sizeof(advData));

        /* Set packet to transmit */
        RCL_TxBuffer_put(&advCmd.ctx->txBuffers, packet);

        advCmd.common.status = RCL_CommandStatus_Idle;

        /* Submit command */
        RCL_Command_submit(rclHandle, &advCmd);

        /* Pend on command completion */
        RCL_Command_pend(&advCmd);

        // return 0;

        usleep(PACKET_INTERVAL);
        //HapiWaitUs(PACKET_INTERVAL);
    }
}

根据我使用功率分析仪所说的、此程序在所有三个通道上每秒广播一次、频率为5dB……

我认为实际广播包(advData)不会被传输、但是...

当我单步执行处理程序代码时、它似乎挑选值0x2 (第一个长度字节)作为所使用的广播类型...

能否验证我是否正确地通过了缓冲区

感谢您分享您的进展。

我们的 SDK 不支持以这种方式使用 BLE、我们希望开发人员能够使用提供的 BLE Stack 库来使用任何 BLE 功能。

为了实现更简单的操作(例如仅 BLE 广播广播广播广播广播广播广播)、可以使用上面的示例、正如我之前提到的文章中所说的、它是从现有实施(TIDA00759、BLE PIR 传感器)移植的。

如果您需要在不同的信道/频率上广播、每条 TX 命令都有一个频率字段。