Hi Bob, Okay, so I see it does have a bootloader, though I still need to verify=20 I can protect code when using the bootloader. I'll research. I did see that it has an SWD interface which is the same as the ST-Link=20 inteface, but haven't yet determined if my $3 ST-Link programmers have a=20 proprietary protocol to the programming software or if it's universal so=20 that I might feed it an Atmel file. The lowest-cost programmer I've seen so far is the bare version of the=20 Atmel ICE, which is called ATATMEL-ICE-PCBA at $54 from Digikey, so=20 that's not too bad now. http://www.digikey.com/product-detail/en/microchip-technology/ATATMEL-ICE-P= CBA/ATATMEL-ICE-PCBA-ND/4753383 Cheers, -Neil. On 2/4/2017 2:45 PM, Bob Blick wrote: > Hi Neil, > > If you just need to program and don't need debugging, you can program usi= ng just the serial bootloader, assuming it has one. The D09 is a pretty low= -end part but it should still have the bootloader in ROM. > > It's easy to get spoiled by the incredibly cheap and easy to use STM32. A= nd ever since I started using Atollic TrueStudio I am very happy with devel= opment too. > > Cheerful regards, > > Bob > ________________________________________ > From: piclist-bounces@mit.edu on behalf of Neil > Sent: Saturday, February 4, 2017 8:16 AM > To: Microcontroller discussion list - Public. > Subject: [EE] Low-cost Atmel SAM-D programmer? > > I'm considering tinkering with an Atmel SAMD09 device, but unsure what > programming device to use. Most Atmel links point me to a relatively > costly ICE debugger, which I don't need. Anyone have a recommendation > for a basic pickit-2-like device? Or even better, something like the > very low cost ST-LINK programmers I use for STM32 devices? > > Cheers, > -Neil. > --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .