[参考译文] DRV2624：使用微控制器写入和播放波形

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Other Parts Discussed in Thread: DRV2624, USB2ANY

请注意，本文内容源自机器翻译，可能存在语法或其它翻译错误，仅供参考。如需获取准确内容，请参阅链接中的英语原文或自行翻译。

https://e2e.ti.com/support/motor-drivers-group/motor-drivers/f/motor-drivers-forum/1532881/drv2624-writing-and-playing-waveforms-using-a-microcontroller

部件号：DRV2624
主题中讨论的其他器件： USB2ANY

工具/软件：

我一直尝试使用 DRV2624 来播放自定义波形。除了运行自动校准时、我似乎无法对触觉电机执行任何振动。我知道有一个内置的 RAM、必须以特定的方式将波形写入到其中。对于写入操作顺序、当涉及到其配置字节和波形本身（电压-时间对）时、我对写入操作顺序有点困惑、不知道整个序列的写入顺序和寄存器。

4 个月前

0 admin 4 个月前

TI__Guru**** 2439560 points

请注意，本文内容源自机器翻译，可能存在语法或其它翻译错误，仅供参考。如需获取准确内容，请参阅链接中的英语原文或自行翻译。

您好：

您使用的是 EVM 还是定制电路板？

我建议使用我们的 GUI Haptic Control Console。这使得在模式之间切换和播放波形变得非常简单。它还有一个 RAM 管理器。 www.ti.com/.../HAPTICS-CONSOLE

此致、
Sydney Northcutt

0 admin 4 个月前

TI__Guru**** 2439560 points

请注意，本文内容源自机器翻译，可能存在语法或其它翻译错误，仅供参考。如需获取准确内容，请参阅链接中的英语原文或自行翻译。

我已经将 DRV2624 集成在我正在开发的系统中、它就在定制电路板上。我无法使用 EVM 来探索 DRV2624 并使用 GUI Haptic Control Console。我只能使用微控制器写入 IC。

此致、

Adithya

0 admin 4 个月前

TI__Guru**** 2439560 points

请注意，本文内容源自机器翻译，可能存在语法或其它翻译错误，仅供参考。如需获取准确内容，请参阅链接中的英语原文或自行翻译。

尊敬的 Aditya：

可通过 I2C 连接 GUI。只需一个 USB2ANY 连接即可。如果无法做到这一点、我们在数据表中有两个部分（此处很有帮助）、即初始化过程和典型使用示例。

您也可以告诉我您尝试的操作模式、并与我共享您的脚本、以便帮助进行调试。

此致、
Sydney Northcutt

0 admin 4 个月前

TI__Guru**** 2439560 points

请注意，本文内容源自机器翻译，可能存在语法或其它翻译错误，仅供参考。如需获取准确内容，请参阅链接中的英语原文或自行翻译。

目前、我将执行以下测试。请引导我说明可能出现的问题。主要思路是将波形的标头写入 RAM、然后写入波形、并验证增量、看看效果是否正确写入。

// Write start location
    uint8_t write_buffer[2] = {0xfd, 0x00};
    if (i2c_master_transmit(drv2624_handle, write_buffer, sizeof(write_buffer), 100) != ESP_OK)
    {
        ESP_LOGE("I2C", "Failed to write RAM location MSB");
        return;
    }
    ESP_LOGI("I2C", "Successfully written RAM start location MSB");

    write_buffer[0] = 0xfe;
    write_buffer[1] = 0x01;
    if (i2c_master_transmit(drv2624_handle, write_buffer, sizeof(write_buffer), 100) != ESP_OK)
    {
        ESP_LOGE("I2C", "Failed to write RAM location LSB");
        return;
    }
    ESP_LOGI("I2C", "Successfully written RAM start location LSB");

    // Read for increment
    uint8_t read_buffer;
    write_buffer[0] = 0xfe;
    if (i2c_master_transmit_receive(drv2624_handle, write_buffer, 1, &read_buffer, sizeof(read_buffer), 100) != ESP_OK)
    {
        ESP_LOGE("I2C", "Failed to read RAM location");
        return;
    }
    ESP_LOGI("I2C", "Successfully read RAM location: %d", read_buffer);

    // Write effect size
    write_buffer[0] = 0xff;
    write_buffer[1] = 0x08;
    if (i2c_master_transmit(drv2624_handle, write_buffer, sizeof(write_buffer), 100) != ESP_OK)
    {
        ESP_LOGE("I2C", "Failed to write effect size to RAM");
        return;
    }
    ESP_LOGI("I2C", "Successfully written effect size to RAM");

    // Read for increment
    write_buffer[0] = 0xfe;
    if (i2c_master_transmit_receive(drv2624_handle, write_buffer, 1, &read_buffer, sizeof(read_buffer), 100) != ESP_OK)
    {
        ESP_LOGE("I2C", "Failed to read RAM location");
        return;
    }
    ESP_LOGI("I2C", "Successfully read RAM location: %d", read_buffer);

    // Write effect
    write_buffer[0] = 0xff;
    write_buffer[1] = 0x1f;
    if (i2c_master_transmit(drv2624_handle, write_buffer, sizeof(write_buffer), 100) != ESP_OK)
    {
        ESP_LOGE("I2C", "Failed to write to RAM");
        return;
    }
    ESP_LOGI("I2C", "Successfully written to RAM");

    // Read for increment
    write_buffer[0] = 0xfe;
    if (i2c_master_transmit_receive(drv2624_handle, write_buffer, 1, &read_buffer, sizeof(read_buffer), 100) != ESP_OK)
    {
        ESP_LOGE("I2C", "Failed to read RAM location");
        return;
    }
    ESP_LOGI("I2C", "Successfully read RAM location: %d", read_buffer);

    write_buffer[0] = 0xff;
    write_buffer[1] = 120;
    if (i2c_master_transmit(drv2624_handle, write_buffer, sizeof(write_buffer), 100) != ESP_OK)
    {
        ESP_LOGE("I2C", "Failed to write to RAM");
        return;
    }
    ESP_LOGI("I2C", "Successfully written to RAM");

    // Read for increment
    write_buffer[0] = 0xfe;
    if (i2c_master_transmit_receive(drv2624_handle, write_buffer, 1, &read_buffer, sizeof(read_buffer), 100) != ESP_OK)
    {
        ESP_LOGE("I2C", "Failed to read RAM location");
        return;
    }
    ESP_LOGI("I2C", "Successfully read RAM location: %d", read_buffer);

    write_buffer[0] = 0xff;
    write_buffer[1] = 0;
    if (i2c_master_transmit(drv2624_handle, write_buffer, sizeof(write_buffer), 100) != ESP_OK)
    {
        ESP_LOGE("I2C", "Failed to write to RAM");
        return;
    }
    ESP_LOGI("I2C", "Successfully written to RAM");

    // Read for increment
    write_buffer[0] = 0xfe;
    if (i2c_master_transmit_receive(drv2624_handle, write_buffer, 1, &read_buffer, sizeof(read_buffer), 100) != ESP_OK)
    {
        ESP_LOGE("I2C", "Failed to read RAM location");
        return;
    }
    ESP_LOGI("I2C", "Successfully read RAM location: %d", read_buffer);

    write_buffer[0] = 0xff;
    write_buffer[1] = 80;
    if (i2c_master_transmit(drv2624_handle, write_buffer, sizeof(write_buffer), 100) != ESP_OK)
    {
        ESP_LOGE("I2C", "Failed to write to RAM");
        return;
    }
    ESP_LOGI("I2C", "Successfully written to RAM");

    // Read for increment
    write_buffer[0] = 0xfe;
    if (i2c_master_transmit_receive(drv2624_handle, write_buffer, 1, &read_buffer, sizeof(read_buffer), 100) != ESP_OK)
    {
        ESP_LOGE("I2C", "Failed to read RAM location");
        return;
    }
    ESP_LOGI("I2C", "Successfully read RAM location: %d", read_buffer);

    write_buffer[0] = 0xff;
    write_buffer[1] = 0x3f;
    if (i2c_master_transmit(drv2624_handle, write_buffer, sizeof(write_buffer), 100) != ESP_OK)
    {
        ESP_LOGE("I2C", "Failed to write to RAM");
        return;
    }
    ESP_LOGI("I2C", "Successfully written to RAM");

    // Read for increment
    write_buffer[0] = 0xfe;
    if (i2c_master_transmit_receive(drv2624_handle, write_buffer, 1, &read_buffer, sizeof(read_buffer), 100) != ESP_OK)
    {
        ESP_LOGE("I2C", "Failed to read RAM location");
        return;
    }
    ESP_LOGI("I2C", "Successfully read RAM location: %d", read_buffer);

    write_buffer[0] = 0xff;
    write_buffer[1] = 120;
    if (i2c_master_transmit(drv2624_handle, write_buffer, sizeof(write_buffer), 100) != ESP_OK)
    {
        ESP_LOGE("I2C", "Failed to write to RAM");
        return;
    }
    ESP_LOGI("I2C", "Successfully written to RAM");

    // Read for increment
    write_buffer[0] = 0xfe;
    if (i2c_master_transmit_receive(drv2624_handle, write_buffer, 1, &read_buffer, sizeof(read_buffer), 100) != ESP_OK)
    {
        ESP_LOGE("I2C", "Failed to read RAM location");
        return;
    }
    ESP_LOGI("I2C", "Successfully read RAM location: %d", read_buffer);

    write_buffer[0] = 0xff;
    write_buffer[1] = 0;
    if (i2c_master_transmit(drv2624_handle, write_buffer, sizeof(write_buffer), 100) != ESP_OK)
    {
        ESP_LOGE("I2C", "Failed to write to RAM");
        return;
    }
    ESP_LOGI("I2C", "Successfully written to RAM");

    // Read for increment
    write_buffer[0] = 0xfe;
    if (i2c_master_transmit_receive(drv2624_handle, write_buffer, 1, &read_buffer, sizeof(read_buffer), 100) != ESP_OK)
    {
        ESP_LOGE("I2C", "Failed to read RAM location");
        return;
    }
    ESP_LOGI("I2C", "Successfully read RAM location: %d", read_buffer);

    write_buffer[0] = 0xff;
    write_buffer[1] = 80;
    if (i2c_master_transmit(drv2624_handle, write_buffer, sizeof(write_buffer), 100) != ESP_OK)
    {
        ESP_LOGE("I2C", "Failed to write to RAM");
        return;
    }
    ESP_LOGI("I2C", "Successfully written to RAM");

    // Read for increment
    write_buffer[0] = 0xfe;
    if (i2c_master_transmit_receive(drv2624_handle, write_buffer, 1, &read_buffer, sizeof(read_buffer), 100) != ESP_OK)
    {
        ESP_LOGE("I2C", "Failed to read RAM location");
        return;
    }
    ESP_LOGI("I2C", "Successfully read RAM location: %d", read_buffer);

这是输出

我不确定自己对写入的理解、因为在写入效应大小（波形的配置字节）时、RAM 没有增量。这是预期行为还是出现了问题？

0 admin 4 个月前

TI__Guru**** 2439560 points

请注意，本文内容源自机器翻译，可能存在语法或其它翻译错误，仅供参考。如需获取准确内容，请参阅链接中的英语原文或自行翻译。

完成上述操作后、我唤醒 DRV2624 模块、然后将 GO 位设置为 1 以运行波形。默认情况下、序列应该是开头的波形索引 1、其余零。因此、它应该会在播放该波形一次后自动停止。

write_buffer[0] = 0x07;
    write_buffer[1] = 0b01001001;
    if (i2c_master_transmit(drv2624_handle, write_buffer, sizeof(write_buffer), 100) != ESP_OK)
    {
        ESP_LOGE("I2C", "Failed to wake up DRV2624");
        return;
    }
    ESP_LOGI("I2C", "Successfully woke up DRV2624");

    write_buffer[0] = 0x0c;
    write_buffer[1] = 1;
    if (i2c_master_transmit(drv2624_handle, write_buffer, sizeof(write_buffer), 100) != ESP_OK)
    {
        ESP_LOGE("I2C", "Failed to write go bit");
        return;
    }
    ESP_LOGI("I2C", "Successfully started effect");

不过、执行此操作时我看不到电机完全在移动。

0 admin 4 个月前

TI__Guru**** 2439560 points

请注意，本文内容源自机器翻译，可能存在语法或其它翻译错误，仅供参考。如需获取准确内容，请参阅链接中的英语原文或自行翻译。

尊敬的 Adithya：

由于您没有看到任何负载结果、下面我们来移除 RAM 部分、这样可以确保这是问题。要设置的一个简单模式是实时播放 (RTP) 模式。下面的脚本将 RTP 模式设置为低振幅 (25%)。您能否运行以下脚本以确保负载正确振动？

宽 5a e 1f     #RTP 模式、25%
W 5a c 1.      #trigger GO 位
延迟时间
W 5a c 0      #stop go bit

下面还有有关使用 DRV2624 进行 RAM 操作的文档。
e2e.ti.com/.../DRV26x4-RAM-Operation-_2D00_-External.docx

此致、
Sydney Northcutt

电机驱动器（参考译文帖）

电机驱动器（参考译文帖）(Read Only)

[参考译文] DRV2624：使用微控制器写入和播放波形