AVRP

[last updated: 2016-07-24]

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• Step by-step programming procedure
• I got this device [SparkFun PGM-09825] because I could not program my rev-3 Uno with my USB cable.
  But the AVRP worked fine.
  Root cause turned out to be that these cheap boards did not have bootloaders. Once I programmed the bootloader (see below), I could again program the Uno with USB.
  
  
  
  
• One note: using the AVRP erases the bootloader, if in fact you have one loaded.
  I used the AVRP on my rev-2 Uno, which previously I could always program with USB (meaning it must have had a bootloader installed), but after programming it once with the AVRP, I could no longer program it with USB.
  • Load ("Burn") a bootloader:
  • Later I successfully re-burned the bootloader on my rev-2, so now I can program it directly from my PC (with USB - see above).
  • See the SparkFun AVRP site for instructions, drivers, etc.
  • Procedure to burn bootloader with AVRP:
  • It does not matter what program you have loaded in the IDE
  • Select Tools > Programmer > USBtinyISP
  • Select Tools > Burn Bootloader
• Another note: It appears that you cannot do bi-directional serial monitor communication with the Arduino through the AVRP connection.Here's what I did to workaround...