Leonardo Clone....problems with Caterina bootloader and uploading code

Other Hardware 3rd Party Boards
1

Hi,
I have a custom board with a ATMega32u4 chip running 8Mhz internal oscillator.
I rebuilt the caterina bootloader for 8Mhz and I upload to the board. All looks good.
I then plugin through the USB and I see the USB "Arduino Leonardo bootloader (COM7)" device appears on COM port 7 in the device manager. Great.
Within the Arduino IDE I select my 8Mhz Arduino board and the COM port 7.
I build and upload my program which uploads and starts running. Note: I do not have to press the reset button for the upload to work.
Here is the output:

Forcing reset using 1200bps open/close on port COM7
PORTS {COM3, COM7, } / {COM3, COM7, } => {}
PORTS {COM3, COM7, } / {COM3, COM7, } => {}
Uploading using selected port: COM7
C:\Program Files\Arduino/hardware/tools/avr/bin/avrdude -CC:\Program Files\Arduino/hardware/tools/avr/etc/avrdude.conf -v -v -v -v -patmega32u4 -cavr109 -PCOM7 -b57600 -D -Uflash:w:C:\DOCUME~1\ogsplosh\LOCALS~1\Temp\build4390349783801752504.tmp/Blink.cpp.hex:i
avrdude: Version 5.11, compiled on Sep 2 2011 at 19:38:36

  • Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/*
  • Copyright (c) 2007-2009 Joerg Wunsch*
  • System wide configuration file is "C:\Program Files\Arduino/hardware/tools/avr/etc/avrdude.conf"*
  • Using Port : COM7*
  • Using Programmer : avr109*
  • Overriding Baud Rate : 57600*
  • AVR Part : ATmega32U4*
  • Chip Erase delay : 9000 us*
  • PAGEL : PD7*
  • BS2 : PA0*
  • RESET disposition : dedicated*
  • RETRY pulse : SCK*
  • serial program mode : yes*
  • parallel program mode : yes*
  • Timeout : 200*
  • StabDelay : 100*
  • CmdexeDelay : 25*
  • SyncLoops : 32*
  • ByteDelay : 0*
  • PollIndex : 3*
  • PollValue : 0x53*
  • Memory Detail :*

Now the board shows up on COM port 8 as an "Arduino Leonardo"...not "Arduino Leonardo bootloader"
I now have to pick COM port 8 to upload but it never works. I press reset during the upload and that does not work either and I keep getting
Windows popup that "USB device is not recognized".
I can not longer upload to the board unless I upload the caterina bootloader all over again and then I go back to it working until I upload a program via USB.
Below is the output.

Forcing reset using 1200bps open/close on port COM8
PORTS {COM3, COM8, } / {COM3, COM8, } => {}
PORTS {COM3, COM8, } / {COM3, COM8, } => {}
PORTS {COM3, COM8, } / {COM3, COM8, } => {}
PORTS {COM3, COM8, } / {COM3, COM8, } => {}
PORTS {COM3, COM8, } / {COM3, COM8, } => {}
PORTS {COM3, COM8, } / {COM3, COM8, } => {}
PORTS {COM3, COM8, } / {COM3, COM8, } => {}
PORTS {COM3, COM8, } / {COM3, COM8, } => {}
PORTS {COM3, COM8, } / {COM3, COM8, } => {}
PORTS {COM3, COM8, } / {COM3, } => {}
PORTS {COM3, } / {COM3, } => {}
processing.app.debug.RunnerException: Couldn't find a Board on the selected port. Check that you have the correct port selected. If it is correct, try pressing the board's reset button after initiating the upload.

  • at cc.arduino.packages.uploaders.SerialUploader.waitForUploadPort(SerialUploader.java:213)*
  • at cc.arduino.packages.uploaders.SerialUploader.uploadUsingPreferences(SerialUploader.java:95)*
  • at processing.app.Sketch.upload(Sketch.java:1672)*
  • at processing.app.Sketch.exportApplet(Sketch.java:1578)*
  • at processing.app.Sketch.exportApplet(Sketch.java:1550)*
  • at processing.app.Editor$DefaultExportHandler.run(Editor.java:2399)*
  • at java.lang.Thread.run(Unknown Source)*

Could the upload of the program somehow be corrupting the bootloader.....I am uploading the blink example so I know it is not the size of the code.

Thanks
Mark

2

Never mind....I figured it out.....
I think it could have been a number of settings fuse bits settings or the lock bits. Once I started using the Arduino IDE to upload the bootloader it worked.

I wanted to delete this post but it appears you cannot delete your own topic.....very strange.

Thanks
Mark

3

This thread may help others that run in the same problem.
Good thing this didn't get deleted.