TransmitExample.cpp

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#include "YmodemCore.h"
#include <Arduino.h>
#include <HardwareSerial.h>
#include <SPIFFS.h>
 
#define CONFIG_SPIFFS_SIZE (2 * 1024 * 1024)        
#define MAX_FILE_SIZE (CONFIG_SPIFFS_SIZE - 0x2000) 
Ymodem ymodem; 
void setup()
{
 
  Serial.begin(115200);
  while (!Serial) {
    ; // wait for serial port to connect. Needed for native USB port only
  }
 
  if (!SPIFFS.begin(true)) {
    Serial.println("Error mounting SPIFFS");
    return;
  }
 
  // Configure the Ymodem activity LED pin
  pinMode(YMODEM_LED_ACT, OUTPUT);
  digitalWrite(YMODEM_LED_ACT, YMODEM_LED_ACT_ON ^ 1);
 
  // configure serial communication for Ymodem transfer
  Serial1.begin(115200, SERIAL_8N1, 16, 17); // RX, TX pins
  if (!Serial1) {
    Serial.println("Error initialazing Serial port");
    return;
  }
 
  // setup finish message
  log_d("Setup completed, ready ro send data");
}
 
void loop()
{
  // Open file saved in SPIFFS to transmit
  File ffd = SPIFFS.open("/firmware-1.bin", FILE_READ);
  if (!ffd) {
    log_e("Error reading file form SPIFFS");
    return;
  }
 
  // Transmit the file to the receiver
  int result = ymodem.transmit((char*)"firmware-1.bin", ffd.size(), ffd);
  ffd.close();
 
  if (result == 0) {
    log_i("Send successfully done");
  }
  else {
    log_e("Error sending file. Error code %d\n", result);
  }
  delay(10);
}