//
// Licensed under the MIT license.
// See accompanying LICENSE file for details.
//
//
// This is an example of updating the Teensy firmware using the FlasherX
// library after receiving the new firmware binary via TCP.
// This example will listen to a TCP port for the data. You can send
// the data using the following command in Linux (Ubuntu):
// netcat -N [IP ADDRESS] [PORT] <data.txt
// where data.txt is a file that contains the data.
//
// Arduino includes
#include <Arduino.h>
// My includes
#include <DebugMsgs.h> // https://github.com/markwomack/ArduinoLogging
#include <TaskManager.h> // https://github.com/markwomack/TaskManager
// Third party includes
#include <WiFiServer.h>
#include <WiFiClient.h>
// Local includes
#include "pin_assignments.h"
#include "constants.h"
#include "MyNetworkHub.h"
#include "FXUtil.h"
extern "C" {
#include "FlashTxx.h" // TLC/T3x/T4x/TMM flash primitives
}
MyNetworkHub networkHub;
class CheckForOTATask : public Task {
public:
void setTCPServer(WiFiServer* tcpServer) {
_tcpServer = tcpServer;
}
WiFiClient getTCPClient(void) {
return _tcpClient;
}
void start(void) {
if (_tcpServer == 0) {
DebugMsgs.debug().println("TCP Server not specified!");
}
_otaIsAvailable = false;
}
void update(void) {
WiFiClient tcpClient = _tcpServer->available();
// If a client was returned, store it for future use
// and indicate an OTA is now available
if (tcpClient) {
_tcpClient = tcpClient;
_otaIsAvailable = true;
}
}
boolean otaIsAvailable(void) {
return _otaIsAvailable;
}
private:
WiFiServer* _tcpServer = 0;
WiFiClient _tcpClient = 0;
boolean _otaIsAvailable;
};
CheckForOTATask checkForOTATask;
void performUpdate(WiFiClient tcpClient) {
uint32_t buffer_addr;
uint32_t buffer_size;
// create flash buffer to hold new firmware
if (firmware_buffer_init( &buffer_addr, &buffer_size ) == 0) {
Serial.printf( "unable to create buffer\n" );
Serial.flush();
return;
}
Serial.printf( "created buffer = %1luK %s (%08lX - %08lX)\n",
buffer_size/1024, IN_FLASH(buffer_addr) ? "FLASH" : "RAM",
buffer_addr, buffer_addr + buffer_size );
update_firmware((Stream*)&tcpClient, (Stream*)&Serial, buffer_addr, buffer_size);
// return from update_firmware() means error or user abort, so clean up and
// reboot to ensure that static vars get boot-up initialized before retry
Serial.printf( "erase FLASH buffer / free RAM buffer...\n" );
firmware_buffer_free( buffer_addr, buffer_size );
Serial.flush();
REBOOT;
}
void setup() {
Serial.begin(115200);
while (!Serial) {;}
DebugMsgs.enableLevel(DEBUG);
pinMode(LED_STATUS_PIN, OUTPUT);
// Connect to WiFi network
if (networkHub.start() == 0) {
WiFiServer* tcpServer = networkHub.getTCPServer(TCP_SERVER_PORT);
checkForOTATask.setTCPServer(tcpServer);
} else {
DebugMsgs.debug().println("Unable to connect to WiFi!");
while (true) {;}
}
taskManager.addTask(&checkForOTATask, 1000);
taskManager.addBlinkTask(LED_STATUS_PIN, 500);
taskManager.start();
}
void loop() {
// Normal processing
taskManager.update();
// If there is an OTA, stop everything and process
if (checkForOTATask.otaIsAvailable()) {
DebugMsgs.debug().println("OTA available, processing...");
// stop normal processing
taskManager.stop();
// perform the OTA update
performUpdate(checkForOTATask.getTCPClient());
}
}
references. In the lower left of the preferences dialog you'll see a link to the location of your "preferences.txt" file. By default, your hex and lst and other temporary files go to a folder somewhere under your User account folder. You can edit preferences.txt to specify an alternate location. I added the line below to my file to move them to a location I find easier to access. Note that the files in this folder will be overwritten each time you do a build. As far as I can tell, there is no way to do this in the Arduino 2.x IDE.