arduino-esp32/libraries/USB/examples/FirmwareMSC/FirmwareMSC.ino

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#include "USB.h"
#include "FirmwareMSC.h"
#if !ARDUINO_USB_MSC_ON_BOOT
FirmwareMSC MSC_Update;
#endif
#if ARDUINO_USB_CDC_ON_BOOT
#define HWSerial Serial0
#define USBSerial Serial
#else
#define HWSerial Serial
USBCDC USBSerial;
#endif
static void usbEventCallback(void* arg, esp_event_base_t event_base, int32_t event_id, void* event_data){
if(event_base == ARDUINO_USB_EVENTS){
arduino_usb_event_data_t * data = (arduino_usb_event_data_t*)event_data;
switch (event_id){
case ARDUINO_USB_STARTED_EVENT:
HWSerial.println("USB PLUGGED");
break;
case ARDUINO_USB_STOPPED_EVENT:
HWSerial.println("USB UNPLUGGED");
break;
case ARDUINO_USB_SUSPEND_EVENT:
HWSerial.printf("USB SUSPENDED: remote_wakeup_en: %u\n", data->suspend.remote_wakeup_en);
break;
case ARDUINO_USB_RESUME_EVENT:
HWSerial.println("USB RESUMED");
break;
default:
break;
}
} else if(event_base == ARDUINO_FIRMWARE_MSC_EVENTS){
arduino_firmware_msc_event_data_t * data = (arduino_firmware_msc_event_data_t*)event_data;
switch (event_id){
case ARDUINO_FIRMWARE_MSC_START_EVENT:
HWSerial.println("MSC Update Start");
break;
case ARDUINO_FIRMWARE_MSC_WRITE_EVENT:
//HWSerial.printf("MSC Update Write %u bytes at offset %u\n", data->write.size, data->write.offset);
HWSerial.print(".");
break;
case ARDUINO_FIRMWARE_MSC_END_EVENT:
HWSerial.printf("\nMSC Update End: %u bytes\n", data->end.size);
break;
case ARDUINO_FIRMWARE_MSC_ERROR_EVENT:
HWSerial.printf("MSC Update ERROR! Progress: %u bytes\n", data->error.size);
break;
case ARDUINO_FIRMWARE_MSC_POWER_EVENT:
HWSerial.printf("MSC Update Power: power: %u, start: %u, eject: %u", data->power.power_condition, data->power.start, data->power.load_eject);
break;
default:
break;
}
}
}
void setup() {
HWSerial.begin(115200);
HWSerial.setDebugOutput(true);
USB.onEvent(usbEventCallback);
MSC_Update.onEvent(usbEventCallback);
MSC_Update.begin();
USBSerial.begin();
USB.begin();
}
void loop() {
// put your main code here, to run repeatedly
}