我使用的是 esp32-s3 使用usb host-cdc-acm 历程。 从机用的是 stm32f407 标准库 的usb-cdc-vcp 历程, 从机和PC端连接,可以识别到设备, 从机和ESP32相连识别不到设备??? 程序错误点: 这个函数 (_check_client_opened_device(client_obj, dev_addr)) 返回来错误标志 ...
I have tried all available examples in ESP-IDF related to USB communication, including both the Host CDC and Host USB libraries, but I am unable to establish communication with my UPS device. I can successfully communicate with other devices using known drivers like CP210x, but I am strugglin...
以固件烧录为例，传统设备通常通过串口烧录方式，需要外接一个串口转USB芯片才能实现与电脑的互连。而搭载乐鑫SoC的设备则可以通过USB烧录功能直连电脑，无需外接芯片。USB烧录功能默认支持USB CDC（通用串行设备类）和USB DFU（设备固件更新）两种固件下载模式，更加灵活与高效。在硬件开发阶段，开发人员可以通过USB-Seri...
static void tinyusb_cdc_rx_callback(uint8_t itf, uint8_t* data, uint16_t len) { ESP_LOGI(TAG, "Received %d bytes of data: %.*s", len, len, data); // 尝试将接收到的数据原样回传 if (tinyusb_cdc_acm_write(itf, data, len) != ESP_OK) { ESP_LOGE(TAG, "Failed to send ...
{"host": "arm-linux-gnueabihf","url": "https://github.com/espressif/crosstool-NG/releases/download/esp-14.2.0_20241119/riscv32-esp-elf-14.2.0_20241119-arm-linux-gnueabi.tar.gz","archiveFileName": "riscv32-esp-elf-14.2.0_20241119-arm-linux-gnueabi.tar.gz","checksum": "SHA-256:27a7...
在运行示例程序 esp32-s2-usb-host-cdc 时,当与设备通讯有段时间之后,串口打印错误信息: [0;33mW (1922332) : BULK IN, dir: 1, err: 0x103[0m 之后发现无法收到USB的数据了,请问这是什么原因导致出现这个错误的?下面是原来的代码 void xfer_in_data()...
Hi, Seen CDC USB host drivers for FTDI and SiLabs chips in new S3/S2/C3 ESP32 variants. Although these do work, it seems that the CH34x USB serial chip brand is quite widespread and in use by really almost anything nowadays in many devic...
程序1:采用IoT Solution中的例程usb host-cdc_acm_host,用于连接一个cdc设备实现读和写 程序2:采用idf中的udp_server例程,用于对一个目标端口进行读和写 单独运行程序1和程序2都一切功能正常,但是将两个程序结合,即同时运行usb host和udp,usb则会报PORT_EVENT_ERROR的错误后重新初始化usb设备,这个报错后重新初始...
(https://espressif-docs.readthedocs-host ... flash.html) I cannot find anything similar for the ESP-IDF, does anyone have a suggestion how this could be done? chegewara Posts:2489 Joined:Wed Jun 14, 2017 9:00 pm Re: ESP-IDF: ESP32S3 DFU when USB CDC is active ...
USBSerial.write(buf, data->rx.len);//write back to usb hostHWSerial.write(buf, len); } HWSerial.println(); break;caseARDUINO_USB_CDC_RX_OVERFLOW_EVENT: HWSerial.printf("CDC RX Overflow of %d bytes", data->rx_overflow.dropped_bytes); ...