1. For OTA update of ESP32 firmware - only single .bin file is needed (not all partitions): "src.ino.bin"
2. If to save it into a web-server as, say, "update.bin", we can make the update:
2. If to save it into a web-server as, say, "update.bin", we can make the update:
B4X:
#Region Project Attributes
#AutoFlushLogs: True
#CheckArrayBounds: True
#StackBufferSize: 10000
#End Region
'Ctrl + click to merge binaries into merged-flash.bin: ide://run?file=%USERPROFILE%\AppData\Local\Arduino15\packages\esp32\tools\esptool_py\4.5.1\esptool.exe&args=--chip&args=ESP32&args=merge_bin&args=-o&args=..\Objects\bin\merged-flash.bin&args=--flash_mode&args=dio&args=--flash_size&args=4MB&args=0x1000&args=..\Objects\bin\src.ino.bootloader.bin&args=0x8000&args=..\Objects\bin\src.ino.partitions.bin&args=0x10000&args=..\Objects\bin\src.ino.bin
'Ctrl + click to flash into ESP32 board: ide://run?file=%USERPROFILE%\AppData\Local\Arduino15\packages\esp32\tools\esptool_py\4.5.1\esptool.exe&args=--chip&args=ESP32&args=--baud&args=921600&args=write_flash&args=0x0&args=..\Objects\bin\merged-flash.bin
Sub Process_Globals
Public Serial1 As Serial
Private wifi As ESP8266WiFi
Private bc As ByteConverter
Private FullPath(200) As Byte
Private timFlashing As Timer
End Sub
Private Sub AppStart
Serial1.Initialize(115200)
Log("AppStart")
timFlashing.Initialize("timFlashing_Tick", 10000)
Log("Connecting to WiFi...")
If wifi.Connect2("wifissid","password") Then
Log("Connected to wireless network.")
Log("My ip: ", wifi.LocalIp)
bc.ArrayCopy("http://myserver.com/update.bin",FullPath)
timFlashing.Enabled = True
Else
Log("Failed to connect...")
End If
End Sub
Sub timFlashing_Tick
timFlashing.Enabled = False
RunNative("updateFIRMWARE", Null) 'timer due to the bin file can be broken after downloading
timFlashing.Enabled = True 'if not updated and not rebooted - next try
End Sub
#if C
#include <Update.h>
#include "HTTPClient.h"
HTTPClient http;
int updateFIRMWARE(B4R::Object* o)
{
http.begin((char*)b4r_main::_fullpath->data);
int httpCode = http.GET();
if (httpCode <= 0) {
//Error HTTP failed
printf("[HTTP] GET... failed, error: %s\n", http.errorToString(httpCode).c_str());
http.end();
return 0;
}
int contentLen = http.getSize();
bool canBegin = Update.begin(contentLen);
if (!canBegin) {
// Error, not enough space for the new binary.
printf("Error, not enough space for the new binary: %i\n", contentLen);
return 0;
}
int len = http.getSize();
printf("Downloading: file should be %i\n", len);
WiFiClient* client = http.getStreamPtr();
size_t written = Update.writeStream(*client);
if (written != contentLen) {
// Error, wrote partial binary.
printf("Download is corrupted: %i\n", written);
http.end();
return 0;
}
if (!Update.end()) {
// Error from Update.end()
printf("Error from Update.end");
http.end();
return 0;
}
if (Update.isFinished()) {
// Update successfully completed. Reboot to apply update.
printf("Update successfully completed !");
delay(1000);
http.end();
ESP.restart();
return 1;
} else {
// Error from Update.isFinished()
printf("Error from Update.isFinished");
http.end();
return 0;
}
}
#End IfAppStart
Connecting to WiFi...
Connected to wireless network.
My ip: 10.1.30.45
Downloading: file should be 1069600
ets Jun 8 2016 00:22:57
rst:0xc (SW_CPU_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
modeIO, clock div:1
load:0x3fff0030,len:1344
load:0x40078000,len:13964
load:0x40080400,len:3600
entry 0x400805f0
AppStart: orion_v.0.222
Device_btMAC = 083AF2A78EAE
Waiting for incoming BT connection from a client
Last edited:
