Runtime Error - "HCD DWC: EP MPS (192) exceeds supported limit (128)"

[BoltSwith]

Greetings,

I successfully compiled and run the library base on the given example - Getting started with a UAC . I'm trying to test Streaming of Audio data to my USB loud Speaker.

The program successfully detects the USB Speaker when I plug it to the USB interface of my Esp32s3 board and carry out necessary initializations, however the program gives the following runtime error:

I (754) app_init: App version: v1.1.0
I (758) app_init: Compile time: Sep 28 2024 08:56:55
I (764) app_init: ELF file SHA256: 9169c317e...
I (770) app_init: ESP-IDF: v5.3.1
I (775) efuse_init: Min chip rev: v0.0
I (779) efuse_init: Max chip rev: v0.99
I (784) efuse_init: Chip rev: v0.2
I (789) heap_init: Initializing. RAM available for dynamic allocation:
I (796) heap_init: At 3FC97EC8 len 00051848 (326 KiB): RAM
I (802) heap_init: At 3FCE9710 len 00005724 (21 KiB): RAM
I (809) heap_init: At 3FCF0000 len 00008000 (32 KiB): DRAM
I (815) heap_init: At 600FE100 len 00001EE8 (7 KiB): RTCRAM
I (821) esp_psram: Adding pool of 8192K of PSRAM memory to heap allocator
I (829) spi_flash: detected chip: gd
I (833) spi_flash: flash io: qio
I (837) sleep: Configure to isolate all GPIO pins in sleep state
I (843) sleep: Enable automatic switching of GPIO sleep configuration
I (850) coexist: coex firmware version: 4482466
I (871) coexist: coexist rom version e7ae62f
I (872) main_task: Started on CPU0
I (873) esp_psram: Reserving pool of 32K of internal memory for DMA
I (887) USB_STREAM: UAC Streaming Config Succeed, Version: 1.4.0
I (888) USB_STREAM: Pre-alloc ctrl urb succeed, size = 1024
I (890) USB_STREAM: USB stream task start
I (920) USB_STREAM: USB Streaming Start Succeed
I (920) USB_STREAM: Waiting USB Device Connection
W (1920) USB_STREAM: Waiting Device Connection, timeout
I (1920) USB_STREAM: Waiting USB Device Connection
W (2920) USB_STREAM: Waiting Device Connection, timeout
E (1920) arduino-usb: connectWait(154): USB streaming wait fail, Error Code: 263
I (7803) USB_STREAM: line 151 HCD_PORT_EVENT_CONNECTION
I (7803) USB_STREAM: Action: ACTION_DEVICE_CONNECT
I (7853) USB_STREAM: Resetting Port
E (7913) USB_STREAM: Port Reset failed, retry = 3
W (8013) USB_STREAM: line 155 HCD_PORT_EVENT_DISCONNECTION
I (8013) USB_STREAM: Recover Stream Task
I (8095) USB_STREAM: Action: ACTION_PIPE_DFLT_DISABLE
I (8095) USB_STREAM: Action: ACTION_PORT_RECOVER
I (8095) USB_STREAM: Action: ACTION_DEVICE_DISCONN
I (8100) USB_STREAM: Waiting USB Connection
I (8355) USB_STREAM: line 151 HCD_PORT_EVENT_CONNECTION
I (8355) USB_STREAM: Action: ACTION_DEVICE_CONNECT
I (8405) USB_STREAM: Resetting Port
I (8465) USB_STREAM: Setting Port FIFO, 0
I (8465) USB_STREAM: USB Speed: full-speed
I (8465) USB_STREAM: ENUM Stage START, Succeed
I (8470) USB_STREAM: ENUM Stage GET_SHORT_DEV_DESC, Succeed
I (8476) USB_STREAM: Default pipe endpoint MPS update to 64
I (8481) USB_STREAM: ENUM Stage CHECK_SHORT_DEV_DESC, Succeed
I (8489) USB_STREAM: ENUM Stage SET_ADDR, Succeed
I (8504) USB_STREAM: ENUM Stage CHECK_ADDR, Succeed
I (8505) USB_STREAM: ENUM Stage GET_FULL_DEV_DESC, Succeed
*** Device descriptor ***
bcdUSB 1.10
bDeviceClass 0x0
bDeviceSubClass 0x0
bDeviceProtocol 0x0
bMaxPacketSize0 64
idVendor 0x4c4a
idProduct 0x4155
bNumConfigurations 1
I (8520) USB_STREAM: ENUM Stage CHECK_FULL_DEV_DESC, Succeed
I (8527) USB_STREAM: ENUM Stage GET_SHORT_CONFIG_DESC, Succeed
I (8534) USB_STREAM: ENUM Stage CHECK_SHORT_CONFIG_DESC, Succeed
I (8541) USB_STREAM: ENUM Stage GET_FULL_CONFIG_DESC, Succeed
*** Configuration descriptor ***
wTotalLength 135
bNumInterfaces 3
bConfigurationValue 1
*** Interface descriptor ***
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 0x1 (Audio)
bInterfaceSubClass 0x1
*** Audio control header descriptor ***
bcdADC 0x100
wTotalLength 40
bInCollection 1
Interface number[0] = 1
*** Audio control input terminal descriptor ***
bTerminalID 1
wTerminalType 0x101
bAssocTerminal 0
bNrChannels 2
wChannelConfig 0x0003
*** Audio control feature unit descriptor ***
bUnitID 2
bSourceID 1
bControlSize 1
bmaControls[ch0] 0x1
bmaControls[ch1] 0x2
bmaControls[ch2] 0x2
*** Audio control output terminal descriptor ***
bTerminalID 3
wTerminalType 0x301
bAssocTerminal 0
*** Interface descriptor ***
bInterfaceNumber 1
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 0x1 (Audio)
bInterfaceSubClass 0x2
*** Interface descriptor ***
bInterfaceNumber 1
bAlternateSetting 1
bNumEndpoints 1
bInterfaceClass 0x1 (Audio)
bInterfaceSubClass 0x2
*** Audio stream general descriptor ***
bTerminalLink 1
bDelay 1
wFormatTag 1
*** Audio control header descriptor ***
bFormatType 1
bNrChannels 2
bSubframeSize 2
bBitResolution 16
bSamFreqType 1
tSamFreq[0] 48000
*** Endpoint descriptor ***
bEndpointAddress 0x3 EP 3 OUT
bmAttributes 0x9 ISOC
wMaxPacketSize 196
bInterval 1
*** Interface descriptor ***
bInterfaceNumber 2
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 0x3 (Unknown)
bInterfaceSubClass 0x0
*** Endpoint descriptor ***
bEndpointAddress 0x82 EP 2 IN
bmAttributes 0x3 INT
wMaxPacketSize 8
bInterval 10
I (8694) USB_STREAM: Audio control interface = 0
I (8699) USB_STREAM: Speaker feature unit = 2
I (8704) USB_STREAM: Support volume control, ch = 6
I (8710) USB_STREAM: Support mute control, ch = 1
I (8715) USB_STREAM: Speaker Interface found, interface = 1
I (8722) USB_STREAM: Endpoint(ISOC) Addr = 0x3, MPS = 196
I (8728) USB_STREAM: Speaker frequency control Not Support
I (8734) USB_STREAM: ENUM Stage CHECK_FULL_CONFIG_DESC, Succeed
I (8742) USB_STREAM: ENUM Stage SET_CONFIG, Succeed
E (8747) HCD DWC: EP MPS (192) exceeds supported limit (128)
E (8752) USB_STREAM: ./components/ESP32_USB_Stream/src/original/usb_host_helpers.c:306 (_usb_pipe_init):pipe alloc failed
E (8764) USB_STREAM: ./components/ESP32_USB_Stream/src/original/usb_stream.c:2737 (_usb_stream_handle_task):pipe init failed
I (8776) USB_STREAM: usb stream task wait reset
W (9781) USB_STREAM: usb stream task recover, reason: stream error
I (9781) USB_STREAM: Resetting SPK pipe
I (9781) USB_STREAM: Set Device Interface = 1, Alt = 0
E (9792) USB_STREAM: ./components/ESP32_USB_Stream/src/original/usb_host_helpers.c:355 (_usb_pipe_deinit):invalid args
E (9799) HCD DWC: EP MPS (192) exceeds supported limit (128)
E (9805) USB_STREAM: ./components/ESP32_USB_Stream/src/original/usb_host_helpers.c:306 (_usb_pipe_init):pipe alloc failed
E (9816) USB_STREAM: ./components/ESP32_USB_Stream/src/original/usb_stream.c:2737 (_usb_stream_handle_task):pipe init failed
I (9828) USB_STREAM: usb stream task wait reset
W (10834) USB_STREAM: usb stream task recover, reason: stream error
I (10834) USB_STREAM: Resetting SPK pipe
I (10835) USB_STREAM: Set Device Interface = 1, Alt = 0
E (10848) USB_STREAM: ./components/ESP32_USB_Stream/src/original/usb_host_helpers.c:355 (_usb_pipe_deinit):invalid args
E (10852) HCD DWC: EP MPS (192) exceeds supported limit (128)
E (10858) USB_STREAM: ./components/ESP32_USB_Stream/src/original/usb_host_helpers.c:306 (_usb_pipe_init):pipe alloc failed
E (10870) USB_STREAM: ./components/ESP32_USB_Stream/src/original/usb_stream.c:2737 (_usb_stream_handle_task):pipe init failed
I (10882) USB_STREAM: usb stream task wait reset
W (11887) USB_STREAM: usb stream task recover, reason: stream error
I (11887) USB_STREAM: Resetting SPK pipe
I (11888) USB_STREAM: Set Device Interface = 1, Alt = 0
E (11894) USB_STREAM: ./components/ESP32_USB_Stream/src/original/usb_host_helpers.c:355 (_usb_pipe_deinit):invalid args
E (11905) HCD DWC: EP MPS (192) exceeds supported limit (128)
E (11911) USB_STREAM: ./components/ESP32_USB_Stream/src/original/usb_host_helpers.c:306 (_usb_pipe_init):pipe alloc failed
E (11923) USB_STREAM: ./components/ESP32_USB_Stream/src/original/usb_stream.c:2737 (_usb_stream_handle_task):pipe init failed
I (11935) USB_STREAM: usb stream task wait reset
W (12940) USB_STREAM: usb stream task recover, reason: stream error
I (12940) USB_STREAM: Resetting SPK pipe
I (12941) USB_STREAM: Set Device Interface = 1, Alt = 0
E (12950) USB_STREAM: ./components/ESP32_USB_Stream/src/original/usb_host_helpers.c:355 (_usb_pipe_deinit):invalid args
E (12958) HCD DWC: EP MPS (192) exceeds supported limit (128)
E (12964) USB_STREAM: ./components/ESP32_USB_Stream/src/original/usb_host_helpers.c:306 (_usb_pipe_init):pipe alloc failed
E (12976) USB_STREAM: ./components/ESP32_USB_Stream/src/original/usb_stream.c:2737 (_usb_stream_handle_task):pipe init failed
I (12988) USB_STREAM: usb stream task wait reset

[BoltSwith]

I suspect the cause of the error that prevents streaming maybe as stated in the error log:

• HCD DWC: EP MPS (192) exceeds supported limit (128)

Find below the test program I used:

#include <Arduino.h>
#include "USB_STREAM.h"

uint16_t speakerBuffer[1024] = {0};

/* Define the Mic frame callback function implementation */
static void onMicFrameCallback(mic_frame_t *frame, void *ptr)
{
    // We should using higher baudrate here, to reduce the blocking time here
    Serial.printf("mic callback! bit_resolution = %u, samples_frequence = %"PRIu32", data_bytes = %"PRIu32"\n", frame->bit_resolution, frame->samples_frequence, frame->data_bytes);
}

 extern "C" void app_main(){
    Serial.begin(115200);
    // Instantiate a Ustream object
    USB_STREAM *usb = new USB_STREAM();

    // Config the parameter
    usb->uacConfiguration(UAC_CH_ANY, UAC_BITS_ANY, UAC_FREQUENCY_ANY, 6400, UAC_CH_ANY, UAC_BITS_ANY, UAC_FREQUENCY_ANY, 6400);

    //Register the camera frame callback function
    usb->uacMicRegisterCb(&onMicFrameCallback, NULL);

    usb->start();

    usb->connectWait(1000);
    delay(5000);

    // usb->uacMicMute((void *)0);
    // delay(5000);

    // usb->uacMicVolume((void *)60);

    // usb->uacMicSuspend(NULL);
    // delay(5000);

    // usb->uacMicResume(NULL);

while(1){
  //usb->uacWriteSpk(speakerBuffer, 800, 100);
  delay(500);
}

}

NB:

• I use the esp-idf and Vs Code i.e. I use Arduino as a Component.
• I'm using the esp-idf version v5.3.1
• ESP32_USB_Stream library is used as a Component.
• I commented out the function call - //usb->uacWriteSpk(speakerBuffer, 800, 100); to see if the error occurs even if I don't attempt to stream audio samples.
• if I uncomment the - usb->uacWriteSpk(speakerBuffer, 800, 100); - I get repeated errors - arduino-usb: uacWriteSpk(336): write spk data error, Error Code: 263
• I've used the connected speaker previously on the same board and successfully streamed audio data when I used the usb_audio_player - sometime ago ( while using esp-idf version v4.4.x)

What could be the cause of the error(s)

[lijunru-hub]

The MPS size of the speaker exceeds the minimum limit of 128, with the camera being 196. This limitation is set by the camera hardware, and it currently cannot support this camera.

[BoltSwith]

Thanks for the reply. I'll find another compatible speaker.

Please, can I ask if the Arduino USB Mass Storage is in development to enable the use of USB Flash Drive in Arduino project.
That is the Arduino compatible version of this esp-idf component - usb host msc

If not in development, please how soon can we expect it, I really need this library for my esp32s3 project to progress. Thanks.

[ziv2013]

I have meet the same issue. And this issue happened after I update to latest version.

[BoltSwith]

I haven't solved this issue yet, and base on your comment, it appears the error is from the esp_idf library. I think it's only wise if we reopen this issue.

[lijunru-hub]

Try modifying the macro definition:
CONFIG_USB_HOST_HW_BUFFER_BIAS_PERIODIC_OUT=y

The content of this macro definition is as follows:

Help:
The underlying hardware features adjustable-size FIFOs for caching USB packets during reception (IN) or transmission (OUT). The size of these FIFOs influences the maximum packet size (MPS) and the maximum number of packets that can be cached at any given time. The hardware includes the following FIFOs:

• RX FIFO: For all IN packets
• Non-periodic TX FIFO: For Bulk and Control OUT packets
• Periodic TX FIFO: For Interrupt and Isochronous OUT packets

This configuration option allows the FIFO sizes to be biased toward specific use cases, which may be necessary for devices with endpoints requiring large MPS. The MPS limits for each bias setting are listed below.

Balanced:

• IN (all transfer types), 408 bytes
• OUT non-periodic (Bulk/Control), 192 bytes (i.e., 3 x 64 byte packets)
• OUT periodic (Interrupt/Isochronous), 192 bytes

Bias IN:

• IN (all transfer types), 600 bytes
• OUT non-periodic (Bulk/Control), 64 bytes (i.e., 1 x 64 byte packets)
• OUT periodic (Interrupt/Isochronous), 128 bytes

Bias Periodic OUT:

• IN (all transfer types), 128 bytes
• OUT non-periodic (Bulk/Control), 64 bytes (i.e., 1 x 64 byte packets)
• OUT periodic (Interrupt/Isochronous), 600 bytes

[ziv2013]

Try modifying the macro definition: CONFIG_USB_HOST_HW_BUFFER_BIAS_PERIODIC_OUT=y

The content of this macro definition is as follows:

Help: The underlying hardware features adjustable-size FIFOs for caching USB packets during reception (IN) or transmission (OUT). The size of these FIFOs influences the maximum packet size (MPS) and the maximum number of packets that can be cached at any given time. The hardware includes the following FIFOs:

• RX FIFO: For all IN packets
• Non-periodic TX FIFO: For Bulk and Control OUT packets
• Periodic TX FIFO: For Interrupt and Isochronous OUT packets

This configuration option allows the FIFO sizes to be biased toward specific use cases, which may be necessary for devices with endpoints requiring large MPS. The MPS limits for each bias setting are listed below.

Balanced:

• IN (all transfer types), 408 bytes
• OUT non-periodic (Bulk/Control), 192 bytes (i.e., 3 x 64 byte packets)
• OUT periodic (Interrupt/Isochronous), 192 bytes

Bias IN:

• IN (all transfer types), 600 bytes
• OUT non-periodic (Bulk/Control), 64 bytes (i.e., 1 x 64 byte packets)
• OUT periodic (Interrupt/Isochronous), 128 bytes

Bias Periodic OUT:

• IN (all transfer types), 128 bytes
• OUT non-periodic (Bulk/Control), 64 bytes (i.e., 1 x 64 byte packets)
• OUT periodic (Interrupt/Isochronous), 600 bytes

Does it means I should recompile the IDF code? How can I have a try?

Thanks,

[lijunru-hub]

modify it in menuconfig
idf.py menuconfig

[ziv2013]

modify it in menuconfig idf.py menuconfig

After I modify it with "idf.py menuconfig" in IDF, how can I put it back to arduino?

I would like to use UAC Host in Arduino.

[lijunru-hub]

Modifying variables in ESP-IDF within the Arduino environment can be a bit complex. @Lzw655 , please help reply to this.

[Lzw655]

Below is an explanation of how to build a custom arduino-esp32 SDK.

https://docs.espressif.com/projects/arduino-esp32/en/latest/lib_builder.html

You can also refer to the below method to modify the required configurations in the sdkconfig.

https://github.com/esp-arduino-libs/esp32-arduino-lib-builder?tab=readme-ov-file#esp32-arduino-lib-builder

[ziv2013]

Below is an explanation of how to build a custom arduino-esp32 SDK.

https://docs.espressif.com/projects/arduino-esp32/en/latest/lib_builder.html

You can also refer to the below method to modify the required configurations in the sdkconfig.

https://github.com/esp-arduino-libs/esp32-arduino-lib-builder?tab=readme-ov-file#esp32-arduino-lib-builder

Thanks, it's really complex. I will study it. Thanks.

[FYMTC]

尝试修改宏定义： CONFIG_USB_HOST_HW_BUFFER_BIAS_PERIODIC_OUT=y

此宏定义的内容如下：

帮助： 底层硬件具有大小可调的 FIFOs，用于在接收 （IN） 或传输 （OUT） 期间缓存 USB 数据包。这些 FIFO 的大小会影响最大数据包大小 （MPS） 和在任何给定时间可以缓存的最大数据包数。硬件包括以下 FIFO：

• **RX FIFO：**对于所有 IN 数据包
• **非周期性 TX FIFO：**用于 Bulk 和 Control OUT 数据包
• **周期性 TX FIFO：**用于中断和同步 OUT 数据包

此配置选项允许 FIFO 大小偏向于特定使用案例，这对于终端节点需要大型 MPS 的设备来说可能是必需的。下面列出了每个偏置设置的 MPS 限值。

平衡：

• IN （所有传输类型），408 字节
• OUT 非周期性（批量/控制），192 字节（即 3 x 64 字节数据包）
• OUT 周期性（中断/同步），192 字节

偏倚：

• IN （所有传输类型），600 字节
• OUT 非周期性（批量/控制），64 字节（即 1 x 64 字节数据包）
• OUT 周期性（中断/同步），128 字节

偏置周期性 OUT：

• IN （所有传输类型），128 字节
• OUT 非周期性（批量/控制），64 字节（即 1 x 64 字节数据包）
• OUT 周期性（中断/同步），600 字节

it works！