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- Thread starter electronrancher
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I'd really like to support this project!
I love your setup. I hand paste the very limited SMD protyping I do and have a toaster oven with the Zallus Reflow Oven Controller: https://www.kickstarter.com/projects/1070729460/zallus-oven-controller
If you are behind on building them, would you have any interest in selling a DIY kit with just the components?
I love your setup. I hand paste the very limited SMD protyping I do and have a toaster oven with the Zallus Reflow Oven Controller: https://www.kickstarter.com/projects/1070729460/zallus-oven-controller
If you are behind on building them, would you have any interest in selling a DIY kit with just the components?
Well it certainly looks amazing! I was originally worried about the Autodesk takeover, but it seems like things are going pretty well so far. Eagle is improved, and other than some annoying online account nags I never use, I don't think any functionality has been removed or screwed up. Pretty surprising, actually!
By the way, your board is in the mail! I'll PM you the tracking number
Not yet, because I don't have a 3D printer, and I'm not very good at CAD. I am hoping that in time some generous person will help me out by putting something on thingiverse. Then I'll buy a case from them!
That controller looks amazing! Do they still sell it, I went researching it but couldn't find anything..?
And thank you for your support! If you want a kit of components, I'll make one up for you. Some of the parts are really small though - I'd say the hardest is the 0603 LEDs so if they don't scare you you should be good.
The atmel chip is a "blind" placement, meaning you can't see the leads on the sides. If you want, I can reflow that one on.
Either way, I love the maker spirit so I'm up for whatever!
Update: Added ReiNX payload to the github code
https://github.com/electronrancher/sam-fusee-launcher
And the pre-compiled ReiNX firmware in UF2 format is below - you still need the ReiNX directory on your SD card, though!
https://github.com/electronrancher/sam-fusee-launcher
And the pre-compiled ReiNX firmware in UF2 format is below - you still need the ReiNX directory on your SD card, though!
Have you done any power draw tests from your dongle and are you using any of the sleep modes of the ATSAMD21? Are you waking it up somehow or using a shutdown timer from when the program starts? Curious about battery life from a CR2012. I noticed you didn't go the DotStar route like the Trinket M0 has and I'm considering dropping it myself because the quiescent current draw with all LEDs off is still quite high.
This one is about 8.8mA when searching, maybe 12mA for one second when sending and activating the payload, then 0.47mA after launch when just showing the power LED. I am using 10k on my LEDs to keep this current low, but I may get complaints about dim lights so I may use MOAR CURRENT someday.
If we call a CR2032 180mAh and the average current 9mA, this would be 20h of activity or 2400 launches if you only leave it on for 30 seconds at a time. I usually only use it for 10 seconds, so I'm not worried about going broke buying batteries.
However, I do have to say that supercaps are super rad. For me, I just wanted something simple for my own use.
And dotstar is great, but I just can't justify adding more expense as I don't think a serial RGB LED supplies much value here. Like you, I'm not buying components in 10,000 quantity so the costs add up. I'm keeping it simple to have a bare-bones widget for the indie crowd that wants something reprogrammable, without soldering, and without having to buy the whole SX license/dongle combo.
If we call a CR2032 180mAh and the average current 9mA, this would be 20h of activity or 2400 launches if you only leave it on for 30 seconds at a time. I usually only use it for 10 seconds, so I'm not worried about going broke buying batteries.
However, I do have to say that supercaps are super rad. For me, I just wanted something simple for my own use.
And dotstar is great, but I just can't justify adding more expense as I don't think a serial RGB LED supplies much value here. Like you, I'm not buying components in 10,000 quantity so the costs add up. I'm keeping it simple to have a bare-bones widget for the indie crowd that wants something reprogrammable, without soldering, and without having to buy the whole SX license/dongle combo.
Thanks all for the support! Batch 1 has about 13 units left, where 7 are promised to Tindie. I have a few more SAMD on hand, but will need to restock if these disappear. PM me if you would like to get on the list.
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Good eye! It's an STM32 Blue pill flashed to CMSIS-DAP. You really only need openocd to program the bootloader on a fresh chip. After I flash the bootloader, all firmware updates can be done by just dropping a file onto USB.
But yes, for the initial flash to write the UF2 bootloader, I use openocd.
Here is my openocd.cfg script to flash it. Hope it helps you with your project - I like your chip board, it's a good idea.
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Good eye! It's an STM32 Blue pill flashed to CMSIS-DAP. You really only need openocd to program the bootloader on a fresh chip. After I flash the bootloader, all firmware updates can be done by just dropping a file onto USB.
But yes, for the initial flash to write the UF2 bootloader, I use openocd.
Here is my openocd.cfg script to flash it. Hope it helps you with your project - I like your chip board, it's a good idea.
Code:
interface cmsis-dap
transport select swd
#Target
set CHIPNAME at91samd21e18
source [find target/at91samdXX2.cfg]
#source [find target/stm32f1x.cfg]
init
targets
reset halt
at91samd chip-erase
reset halt
at91samd bootloader 0
program D:/projects/SAMD_Loader/Firmware/all.bin verify
at91samd bootloader 8192
reset
shutdown
Last edited by electronrancher,
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When I go to your profile, I don't see anywhere that gives me the option to PM.
I'm new here though, so maybe I don't have enough posts or something to PM yet?
When I go to your profile, I don't see anywhere that gives me the option to PM.
I'm new here though, so maybe I don't have enough posts or something to PM yet?
Yes, it must be because you are new. I am sending a test PM, if it works you should be able to reply
D
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I'm using the OG Atmel Cortex chip, the ATSAMD21E18A-MU. Biggest flash and RAM, although none of the loaders (so far) even fill it halfway up. You could probably replace with the G18, which I think is half the flash (128k) but that needs double checking.
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