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SBC

Shane Yorks
Note: This was originally posted on 7th January 2012 at http://forums.arm.com

I'm a hobbyist x86 assembly programmer, but I thought it would be nice to try my hand at some ARM (i've noticed a very large increase of attention towards arm starting with Nintendo's DS systems, so it seems to be the way of the future for mobile devices [i did look a bit at the instructions and such and it seems very, very interesting with built-in graphics and sound instructions]). I thought about using my nintendo DS for this (via the one gizmo by Datel), but, well, there's alot of problems with that in regards to level of access and lack of documentation. I was wondering if there is a nice, cheap ARM board with a small keypad and display that i might be able to write a kernel for (preferably powered by battery or low enough that i could probably hack together a battery power supply). Obviously i'd also need some method of getting the kernel on there, too. Does anyone have any product suggestions?

I'd try taking a cheap route and building an arm gadget myself, but i don't know enough about electronics to find a display and input device compatible with an arm board and how to get them all working together. Thanks in advance for any advice.

EDIT: We might have a winner here with the STM32-LCD (sold by OLIMEX [no keyboard, but i think i can find a way to get one]). Does anyone know if i need to buy any extra connectors (JTAG and/or something else) to upload my kernel?
  • Note: This was originally posted on 7th January 2012 at http://forums.arm.com

    I ended up buying the Spruce - LinkSprite STM32 due to the fact i could buy it on a website i trust as opposed to the other ones. Very similar and much cheaper, but it does loose a few features. I thank you for your help. I'll probably end up having to post again when i run into  a problem.
  • Note: This was originally posted on 7th January 2012 at http://forums.arm.com

    You can program UART on STM32 (and USB on newer ones). All the STM32 dev boards I've seen have an RS232 transceiver on the first UART, so you can connect to it directly from a PC's serial port. Or over a USB to serial adapter.

    I've personally never needed to use JTAG on STM32. but I did write my own code to talk to the boot loader. It's a simple and well documented protocol so that shouldn't be much of a problem if you have to do it, it only took me about a day. ST does offer a tool for Windows that's supposed to do it but for some reason I couldn't get it to work.