nocko
commented
10 years ago Kris Winer notifications@github.com writes:
Hi Shawn,
Thanks for sharing this project. I am in the process of designing something similar, but with a smaller footprint. Is there some way to import your schematic and board design into Eagle CAD? I'll probably just make it from scratch using your schematic as a guide.
There's no way to directly import it. Eagle isn't great software anyway.
You may be interested to know that I did some contract work for a company recently. They decided to spin off the dev. platform I made for them into an OSHW project. It was designed in Eagle (a requirement from them). It's not posted yet (we're waiting for the first batch of boards). I can link you to it once it's released (a month or two).
My earlier board has no low-frequency crystal which is pretty helpful (otherwise you have to synthesize a low-freq clock from the 16Mhz crystal which takes more power).
Also, do you know of a tutorial that shows how to program the device through the JTAG connector?
I use gcc and the j-link tools with a j-link lite-m tool from Segger.
My work flow is based on this github repo: https://github.com/hlnd/nrf51-pure-gcc-setup
I've made some local changes... but it's a good start. If you open the Makefiles under the 'templates' folder you'll see commands like JLinkExe, JLinkGDBServer, &c used in the scripts. These are from the JLink tools released by Segger for use with their SWD/JTAG adapters. They sell an EDU kit that's good (but you're not supposed to develop comercial products with it) for $80. You can also by the Nordic development kit for $99 that comes with a J-Link Lite-M adapter and some sample daughter boards. You can't use the boards on their own with out a more expensive host board... but I designed an OSHW host board you can use to play with them (let me know if you order the kit). With the kit you also get a license to use the softdevices; useful for actually using the wireless.
I have an nRF51822 mKit development board that I have been playing with using the mbed compiler. It has a debugger built in. I might be able to use it to program a custom board like yours.
I would like to learn how to use this chip well. Any suggestions for sample programs/projects that I could learn (copy) from? Thanks for your help.
There are very few tutorial-style articles on this platform. I've spent most of my time reading the example code (in the Nordic SDK).
Good luck!
Shawn Nock (OpenPGP: 0x6FDA11EE 3BC412E3)
Hi Shawn,
Thanks for sharing this project. I am in the process of designing something similar, but with a smaller footprint. Is there some way to import your schematic and board design into Eagle CAD? I'll probably just make it from scratch using your schematic as a guide.
Also, do you know of a tutorial that shows how to program the device through the JTAG connector?
I have an nRF51822 mKit development board that I have been playing with using the mbed compiler. It has a debugger built in. I might be able to use it to program a custom board like yours.
I would like to learn how to use this chip well. Any suggestions for sample programs/projects that I could learn (copy) from? Thanks for your help.