# | 100% 0.07sĪvrdude: verifying efuse memory against 0x05:Īvrdude: load data efuse data from input file 0x05:Īvrdude: input file 0x05 contains 1 bytesĪvrdude: verification error, first mismatch at byte 0x0000Īvrdude: verification error content mismatchģa - I left the reset on pin 10 and used the Uno as the board and re-tried to burn the bootloader. Writing | # | 100% 0.01sĪvrdude: verifying lock memory against 0x3F:Īvrdude: load data lock data from input file 0x3F:Īvrdude: input file 0x3F contains 1 bytes Reading | # | 100% 0.03sĪvrdude: Device signature = 0x1e950f (probably m328p) Lock 0 0 0 0 no 1 0 0 4500 4500 0x00 0x00Ĭalibration 0 0 0 0 no 1 0 0 0 0 0x00 0x00ĭescription : Atmel STK500 Version 1.x firmwareĪvrdude: AVR device initialized and ready to accept instructions Memory Type Mode Delay Size Indx Paged Size Size #Pages MinW MaxW ReadBackĮeprom 65 20 4 0 no 1024 4 0 3600 3600 0xff 0xff User configuration file does not exist or is not a regular file, skipping User configuration file is "/Users/Mike/.avrduderc" System wide configuration file is "/Users/Mike/Library/Arduino15/packages/arduino/tools/avrdude/6.3.0-arduino2/etc/nf" So I moved the reset to pin 10 on the MEGA and got this error:Īvrdude: Version 6.3, compiled on at 19:15:19 Any help is much appreciated!!!ġ- The chip on the pro mini clone is a 328pĢ- I enabled the verbose output during uploadģ- The ISP sketch said pin 10 was the reset pin to the target microcontroller (helps to read the code comments!). I've looked around quite a bit on this forum and others and tried every trick/setup suggested with no luck. Here is how I wired the setup and how I tried to upload the bootloader (running Arduino IDE 1.6.10 on Mac):ġ- Select the MEGA board/port, Arduino ISP programmer, upload ArduinoISP example sketchĢ- Wire 22uF cap between reset and GND on the MEGA (and have the wiring as shown above to the pro mini)ģ- Select the pro mini board/leave the port the same, Arduino as ISP progammer, and burn bootloaderĪvrdude: Yikes! Invalid device signature.ĭouble check connections and try again, or use -F to override I bought some Pro mini clones and suspected there was no bootloader as I could not upload a sketch through a USB/TTL or the MEGA 2560 (the sketch uploads/works just fine with other boards that have built on USB connection). I have a MEGA 2560 I want to use as an ISP to a Pro Mini. Normally I do not have to fight with Atmel hardware like I have this.I am new to the Arduino world so please bare with me. It shows up as "Arduino Micro (COM6) all looks good but when I try to upload it cannot force the reset, tries to upload to "Arduino Micro (COM6)" and fails (I assume because it is not entering into the bootloader). When I try to upload another sketch to this port it fails (as I would expect) because it cannot force the reset presumably because the bootloader is already active. The LED does begin to blink but in device manager it remains as "Arduino Micro bootloader (COM7)". In the process the IDE forces the reset and in device manager I can see the "Arduino Micro bootloader (COM7)" replace the micro on COM6. Then I try to upload the Arduino example Blink.ino sketch - and that works too. When I plug the micro into the computer the first time it is recognized as an "Arduino Micro (COM6)". I have been able to burn the bootloader using both an Arduino Uno and with an AVRISP mkII. I made a custom PCB ( schematic) for a smaller Arduino Pro Micro and it works - mostly. I've been struggling with this issue for a few days on and off now.
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