[Tutorial] How to burn 1Mhz & 8Mhz bootloader using Arduino IDE 1.6.5-r5

[GertSanders]

@siod
For OTA you need to flash the boot loaders that allow this. The standard boot loaders do not have this ability to OTA update.

[flopp]

I am also having problem upload with FTDI, I can upload sketch if I use UNO as ISP.
I read that someone also have problem above but nothing is helping me.
I am using Arduino IDE 1.6.8.
Can it be the version of Arduino IDE?

[dpressle]

@flopp The only way i was able to upload with ftdi is to connect RTS pin to pin 1 via a 0.1 uf cap

[flopp]

@dpressle
OK will try. Cap minus to GND and cap positive to RTS?

EDIT: I am using 1Mhz setup
I change the LOW fuse and Extended but what I can see is that my changes only changes the BOD and internal oscillator.

low_fuses=0x42
extended_fuses=0x06

I noticed that my board have high_fuses=0xde, this setting the 1MHz board also have but not 8MHz. This mean that I dont have any space for Bootloader, can this be my problem?

[flopp]

I tried with above 8MHz setting and then I can upload to ATmega with a FTDI.

I will try to change settings one-by-one until I cant upload and write back here.

[flopp]

With this board.txt config

atmega328bb.name=ATmega328 on a breadboard (8 MHz internal clock)

atmega328bb.upload.protocol=arduino
atmega328bb.upload.maximum_size=30720
atmega328bb.upload.speed=57600
atmega328bb.bootloader.low_fuses=0xE2
atmega328bb.bootloader.high_fuses=0xDA
atmega328bb.bootloader.extended_fuses=0x06
atmega328bb.bootloader.file=atmega/ATmegaBOOT_168_atmega328_pro_8MHz.hex
atmega328bb.bootloader.unlock_bits=0x3F
atmega328bb.bootloader.lock_bits=0x0F
atmega328bb.build.mcu=atmega328p
atmega328bb.build.f_cpu=8000000L
atmega328bb.build.core=arduino:arduino
atmega328bb.build.variant=arduino:standard
atmega328bb.bootloader.tool=arduino:avrdude
atmega328bb.upload.tool=arduino:avrdude

I can upload with FTDI. When Arduino IDE change from "Compiling sketch" to "Upload", disconnect DTR and it work.
With my sketch it was using 12,9 uA when sleep
Same result if I change f_cpu to 1000000L

[flopp]

Today I could upload without removing DTR :)

[siod]

@GertSanders said:

@siod
For OTA you need to flash the boot loaders that allow this. The standard boot loaders do not have this ability to OTA update.

Ok, but after the new release of mysensors ver 2.0 lib and my wish to update my gw and sensor nodes I would like to add OTA update ability as well for upcoming updates.

• So does a 1 MHz Bootloader with OTA exist that is compatible to the one from above?
• Could OTA easily be added to the above 1MHz Bootloader?
• Should i just use the "ATmega328 internal 8Mhz with MYSBootloader" instead of the above mentioned bootloaders?

[cimba007]

Recently I read a lot about the 0ms, 4.1ms, 65ms start-up time of the low fuses.

I thought adding a small example to prove that the 65ms start-up time is apparently only important during initial powerup.

Used library: https://github.com/rocketscream/Low-Power

Testcode:

#include <LowPower.h>

// the setup function runs once when you press reset or power the board
void setup() {
  // initialize digital pin 13 as an output.
  pinMode(13, OUTPUT);
  Serial.begin(19200);
}

// the loop function runs over and over again forever
void loop() {

  LowPower.powerDown(SLEEP_15Ms, ADC_OFF, BOD_OFF);  
  Serial.write(".");
  Serial.flush();
}

First dot:

Second dot:

= 15ms (sleep) + 2ms (serial communication)
~17ms including overhead for sending serial command

I will try out your bootloader and I can only say that it looks promising

[cimba007]

I ran into an rather strange problem.

Mygateway is using esp8266_mqtt_client @ 80Mhz and my node is using the 1mhz bootloader.

If I enable debug logging on the gateway everything is working fine.

Upon disabling debug logging on the gateway and enabling debug lobbing on the node I get this:

TSP:PING:SEND (dest=0)<\n>
TSP:MSG:SEND 11-11-0-0 s=255,c=3,t=24,pt=1,l=1,sg=0,ft=0,st=ok:1<\n>
TSP:CHKUPL:FAIL (hops=255)<\n>
!TSM:UPL:FAIL<\n>

Note that I don't use hardware ack. My assumption is that it takes too long to switch from send mode on the node to receive mode and that the gateway is responding too "fast" for the 1mhz node. Could this be possible?

I even tried out 57600baut serial data rate on the node thanks to this "calibration" sketch for the internal oscillator.

void setup() {
  Serial.begin(57600);
  pinMode(A4,OUTPUT);
  Serial.println(OSCCAL);
}

// Use hterm to repeatatly send the same message unti you cacn read it
void loop() {
  static uint8_t val = 140;
  OSCCAL=val;
  //Serial.println();
  Serial.print("Osccal= ");  
  Serial.println(OSCCAL,DEC);

  delay(500);
  //digitalWrite(A4,HIGH);
  //delay(1);
  //digitalWrite(A4,LOW);
  //delay(100);
  while(Serial.available())
    Serial.write(Serial.read());
  val++;
  if(val > 200)
    val = 140;
}

Just add this

void before()
{
  Serial.begin(MY_BAUD_RATE);
  OSCCAL=150;
}

with 150 is the middle of the OSCCAL values where the serial calibration sketch is working. (its working from osccal 140 to osccal 160)

[flopp]

@flopp said in [Tutorial] How to burn 1Mhz & 8Mhz bootloader using Arduino IDE 1.6.5-r5:

With this board.txt config

atmega328bb.name=ATmega328 on a breadboard (8 MHz internal clock)

atmega328bb.upload.protocol=arduino
atmega328bb.upload.maximum_size=30720
atmega328bb.upload.speed=57600
atmega328bb.bootloader.low_fuses=0xE2
atmega328bb.bootloader.high_fuses=0xDA
atmega328bb.bootloader.extended_fuses=0x06
atmega328bb.bootloader.file=atmega/ATmegaBOOT_168_atmega328_pro_8MHz.hex
atmega328bb.bootloader.unlock_bits=0x3F
atmega328bb.bootloader.lock_bits=0x0F
atmega328bb.build.mcu=atmega328p
atmega328bb.build.f_cpu=8000000L
atmega328bb.build.core=arduino:arduino
atmega328bb.build.variant=arduino:standard
atmega328bb.bootloader.tool=arduino:avrdude
atmega328bb.upload.tool=arduino:avrdude

I can upload with FTDI. When Arduino IDE change from "Compiling sketch" to "Upload", disconnect DTR and it work.
With my sketch it was using 12,9 uA when sleep
Same result if I change f_cpu to 1000000L

Yesterday I burn with above settings, I had to use 5v to power the pro mini(I don't know if the pro mini is 5 or 3.3v) I had to power it with 5v otherwise I couldn't burn any new bootloader.

[GertSanders]

@flopp

To use the FTDI connection:

You need a ceramic cap (not polarised).

RTS - CAP - RESET pin of ATMEGA

RESET pin needs a pull up resistor of 10K, connect as follows: VCC - 10K resistor - RESET pin of ATMEGA

[MasMat]

Help!
I semi-followed this thread but also built a shield like this:
http://www.instructables.com/id/Arduino-UNO-as-AtMega328P-Programmer/

For the Uno, the ArduinoISP sketch goes fine. After that, I connect the shield and 328p and upload stuff.
Since my build has 3.3V regulated power (using PCB My Slim 2AA Battery Node..but I can sneak wires to it easily so no need for batteries), I selected 'Board -> Pro Mini' and type '3.3V 8Mhz'. Burn bootloader goes fine, no errors. Upload sketch using programmer (Arduino as ISP) also uploads fine.
When I plug it in (USB FTDI-clone 3.3V selected) and see serial monitor, it remains blank. Nor does the node work when plugged into power.

Anybody else try this? Ideas? The slim node has all caps and resistor connected.

EDIT:
I used the recommended board download from 8Mhz instructions and bingo, it's working...partly. Have to check radio wiring.
Should just follow instructions and not go off on my own......

[MasMat]

Continuing on...I need help getting my Atmega328P-PU to work.

I'm able to burn the bootloader (8MHz on breadboard) and upload sketch ("using programmer"). However when I power the PCB, the sketch doesn't run. I soldered on a LED and uploaded BlinkWithoutDelay, just to verify that it works, but does not. I measured power and all connections. I'm powering with regulated 3.3V.

To make things more weird, I connected FTDI to one node and with that connection it works fine. But when powering from pins, nothing (again using regulated 3.3V.

[electrik]

That sounds more like your power connections are not good. You should check them again.
Or perhaps the capacitor of the ftdi makes the difference, and you should add one in your circuit.
Are the atmegas genuine or can they be fake ones?

[MasMat]

@electrik Everything's 100% chinese :)
I checked power at all terminals and the atmega-connections, as well as radio hookup etc. I have all the caps on "My Slim Node" (4x 0,1yF and 4,7 yF). I normally get better power thru regulators than with FTDI but I did check that originally.

I built two like this, same type of problem. I have Gert Sanders's "boards" installed. Is there a very basic setup I could try? I'm having trouble figuring out all the options that are available. All I want is Atmega working like a normal 3.3v/8MHz Arduino.

[electrik]

Did you read this?
https://forum.mysensors.org/topic/9388/atmega328p-au-counterfeit/15

[MasMat]

I have now. I always have that nagging feeling...
But after MANY iterations, finally success. At least partly. :v:

BlinkWithoutDelay works AND mysensors sketch as well (will do more testing...).
What made it work, if anyone else struggles with this:

-connect uno (to computer-linux), board:uno, upload ArduinoISP, disconnect
-add shield to uno and atmega328p-pu to shield, connect to computer, board: "8mhz on breadboard", "programmer: "Arduino as ISP", burn bootloader, disconnect
-board: Uno, connect as above, "upload sketch using programmer", disconnect EDIT this last part appears to work but internal clock is all messed up. Bootloader works fine like this.

The magic happened after I changed the board back to Uno after burning bootloader. Why is beyond me, but maybe some arduino-ninja can figure it out.

[bjacobse]

As I recall depending of frequency you need to adjust sketch upload baudrate, Maybe "uno" board have the "correct" baudrate defined for your frequency
https://forum.arduino.cc/index.php?topic=92663.0

[MasMat]

Can someone help me with these questions?
I want the Slim Node to function "like a 3.3/8mhz pro mini" for MySensors home autom applications. So I can upload sketches thru ftdi-pins. Since I also use Pro Minis, I would not want change the mysensors library (serial baud).

1. if I load the bootloader with a 8mhz crystal on the breadboard, does my barebones Slim node need a crystal too?
2. If I set serial.begin in the sketch, does it override the MySensors default? So I could have that for slim node sketches.
3. What kind of nodes would be problematic without crystal use? Repeater?
4. Is it possible to Uno+breadboard just bootload all atmega328p's and then just solder onto SlimNode and use ftdi for uploading sketches (as I would normally to a Pro Mini)? In other words do I have to rethink the whole thing.

EDIT, to help others

1. if the bootloader is not set for crystal, it's not needed.
2. yes
3. ? Repeaters work fine.
4. yes.
   My biggest problem was a capacitor missing between RST and GND when uploading bootloaders. After adding that to my shield, everything works.
   Now I bootload 1Mhz (battery nodes) and 8Mhz (non-bat) once I get them and then program them with the FTDI when I build the nodes.