The data transfer causes the USB to fail to communicate

[guess-name]

Board

ESP32S3

Device Description

ESP32-S3-WROOM-1U-N16R8

Single-module testing

Hardware Configuration

Minimal system

GPIO18 and GPIO19 No other peripherals

Version

v3.1.0

IDE Name

VSCODE

Operating System

win11

Flash frequency

The module comes with it

PSRAM enabled

yes

Upload speed

115200

Description

Sending a string of data every 50ms will cause the USB to fail (unacceptable and unable to send)。
Sending the same data every 100ms will not cause the above problems

Send data：{"cmd":1,"data":100}

Sketch

void setup()
{
    Serial.begin(115200);
    Serial.setRxBufferSize(4096);
    Serial.setTxBufferSize(4096);
    delay(1000); // 等待串口初始化
}

// 线程函数
void PcComTask(void *arg)
{
    while (adcUartObj._initFinish == false)
    {
        delay(100);
    }
    pcComObj.init(&Serial);
    uint8_t lent = 0;
    while (1)
    {
        if (lent == pcComObj._serial->available() && lent > 0)
        {
            pcComObj.handleData();
            lent = 0;
        }
        else
        {
            lent = pcComObj._serial->available();
        }
        delay(5);
    }
}

Debug Message

No errors

Other Steps to Reproduce

If you send within 100 ms, you will not have this exception, but if the transmission interval is less than 80 ms, an error will occur

I have checked existing issues, online documentation and the Troubleshooting Guide

• I confirm I have checked existing issues, online documentation and Troubleshooting guide.

[guess-name]

[guess-name]

[SuGlider]

Which USB CDC mode is used?
ESP32-S3 has 2 modes: Hardware JTAG/CDCD and OTG USB CDC.