9dd9bde682
* Serial as a #define * Typo * fixes USBCDC declaration * Fixes Examples * simplifies examples * Adds USB Serial Events * adds error msg when ESP32 is used with USB
83 lines
2.5 KiB
C++
83 lines
2.5 KiB
C++
#ifndef ARDUINO_USB_MODE
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#error This ESP32 SoC has no Native USB interface
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#elif ARDUINO_USB_MODE == 1
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#warning This sketch should be used when USB is in OTG mode
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void setup(){}
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void loop(){}
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#else
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#include "USB.h"
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static void usbEventCallback(void* arg, esp_event_base_t event_base, int32_t event_id, void* event_data){
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if(event_base == ARDUINO_USB_EVENTS){
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arduino_usb_event_data_t * data = (arduino_usb_event_data_t*)event_data;
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switch (event_id){
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case ARDUINO_USB_STARTED_EVENT:
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Serial.println("USB PLUGGED");
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break;
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case ARDUINO_USB_STOPPED_EVENT:
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Serial.println("USB UNPLUGGED");
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break;
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case ARDUINO_USB_SUSPEND_EVENT:
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Serial.printf("USB SUSPENDED: remote_wakeup_en: %u\n", data->suspend.remote_wakeup_en);
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break;
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case ARDUINO_USB_RESUME_EVENT:
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Serial.println("USB RESUMED");
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break;
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default:
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break;
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}
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} else if(event_base == ARDUINO_USB_CDC_EVENTS){
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arduino_usb_cdc_event_data_t * data = (arduino_usb_cdc_event_data_t*)event_data;
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switch (event_id){
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case ARDUINO_USB_CDC_CONNECTED_EVENT:
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Serial.println("CDC CONNECTED");
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break;
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case ARDUINO_USB_CDC_DISCONNECTED_EVENT:
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Serial.println("CDC DISCONNECTED");
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break;
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case ARDUINO_USB_CDC_LINE_STATE_EVENT:
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Serial.printf("CDC LINE STATE: dtr: %u, rts: %u\n", data->line_state.dtr, data->line_state.rts);
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break;
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case ARDUINO_USB_CDC_LINE_CODING_EVENT:
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Serial.printf("CDC LINE CODING: bit_rate: %lu, data_bits: %u, stop_bits: %u, parity: %u\n", data->line_coding.bit_rate, data->line_coding.data_bits, data->line_coding.stop_bits, data->line_coding.parity);
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break;
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case ARDUINO_USB_CDC_RX_EVENT:
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Serial.printf("CDC RX [%u]:", data->rx.len);
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{
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uint8_t buf[data->rx.len];
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size_t len = USBSerial.read(buf, data->rx.len);
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Serial.write(buf, len);
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}
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Serial.println();
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break;
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case ARDUINO_USB_CDC_RX_OVERFLOW_EVENT:
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Serial.printf("CDC RX Overflow of %d bytes", data->rx_overflow.dropped_bytes);
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break;
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default:
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break;
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}
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}
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}
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void setup() {
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Serial.begin(115200);
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Serial.setDebugOutput(true);
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USB.onEvent(usbEventCallback);
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USBSerial.onEvent(usbEventCallback);
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USBSerial.begin();
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USB.begin();
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}
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void loop() {
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while(Serial.available()){
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size_t l = Serial.available();
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uint8_t b[l];
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l = Serial.read(b, l);
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USBSerial.write(b, l);
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}
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}
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#endif /* ARDUINO_USB_MODE */
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