Programming Bluno bootloader with USBtinyISP

USB AVR Programmer and SPI interface. Adafruit's USBtinyISP.

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jstil
 
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Programming Bluno bootloader with USBtinyISP

Post by jstil »

Received my USBtinyISP kit from Adafruit last week. Just finished assembling it and used it to program the bootloader on a DFrobot Bluno (Arduino UNO with BLE). However, I get the error "avrdude: initialization failed, rc = -1" (see attached screen clip). Also attached is a pic of the two boards connected and powered on.

When I select Tools->Burn Bootloader, the USBtinyISP red led blinks once for about 1/4 second. The Bluno Link LED flashes briefly. The bootloader does get programmed, i.e. it worked.

So my question is, why is the avrdude error reported? Am I using the programmer correctly?
Attachments
USBtinyISP and Bluno1.jpg
USBtinyISP and Bluno1.jpg (148.64 KiB) Viewed 951 times
USBtinyISP and Bluno.jpg
USBtinyISP and Bluno.jpg (120.31 KiB) Viewed 951 times

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adafruit_support_rick
 
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Re: Programming Bluno bootloader with USBtinyISP

Post by adafruit_support_rick »

The RC=-1 error means that the USBtiny is not communicating with the target. However, if the bootloader programming is working, I don't know why you would get that.

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