SparkFun Pro RF (SAMD21) US 915MHz Cannot Upload

Development Boards Arduino
1

I have followed setup steps for my SparkFun Pro RF board but cannot get an upload to initiate. I use USB Device Tree explorer to confirm with certainty that my device is on COM5 and using latest Arduino IDE with the generic SAMD21 boards installed and then the SparkFun-specific version of this board installed and selected.

Some of the SAMD21 breakout tutorials say that a light should be blinking:

“To power the SAMD21 Breakout board, just plug it into a USB port on your computer. The red power LED indicator should immediately turn on, followed shortly-thereafter by a blinking blue LED on pin 13.”

But when I plug my board in there is only a single PWR LED on. Pressing the reset button has no effect.

Can anyone confirm that the SparkFun Pro RF (SAMD21) is actually supposed to blink (possibly on the STAT led) out of the box before flashing/uploading anything?

Currently it just kind of hangs at ‘uploading’ for a bit and then I get a ‘No device found on COM5’ message (Upload error: Failed uploading: uploading error: exit status 1)

2

Try this https://learn.sparkfun.com/tutorials/sa … leshooting and if that doesn’t reset the device it might be defective; if so head to www.sparkfun.com/returns and we’ll get you squared away

3

That worked perfect! I’m a little surprised I didn’t do that by accident when I was trying to get things going.

I did the double-tap once and after my first successful upload all subsequent uploads just worked normally without having to do anything special.

Thanks!