We're also looking at ARM for our routers. That's like... infinity memory from where I'm standing :) Still have to maintain 2xx series stuff for the foreseeable future though, and if the CC430 works well, other stuff in the 5xx series should be easy to port to.
From: Eric Decker [mailto:[email protected]] Sent: Wednesday, November 20, 2013 01:15 To: Antonio Linan Cc: Michiel Konstapel; [email protected] Subject: Re: [Tinyos-help] CC430 On Tue, Nov 19, 2013 at 1:49 PM, Antonio Linan <[email protected]<mailto:[email protected]>> wrote: I have been using the msp430 x5xxx implementation from tp-master and had no problem, the I2C/SPI works great but I have not looked the ADC implementation. I've ported the CC1120 from the Gnode's CC1101 driver (thanks Michiel bttw!) with CC1190 support for operation in compliance with FCC/CEPT/ARIB regulations, so far no problems have arised. pretty pretty please, can we get that for tp-master? The CC430 was quickly discarded due to size constrains, I'm running an application pretty close to the 16Kb RAM and 80Kb flash, with a 2Mbit STM25P. 2Mbit should be fine. a core dump just dumps memory. however if you guys want to go with an SD, I have a fully event driven SD driver with a fall back mechanism that is used for Panic dumps. The full back doesn't use any tinyos kernel resources but is low level get it done run to completion. The SD driver supports both modes. About the x2xxx status in tp-master I have overlooked it Ah. The infamous bit rot. It is also why I've been ignoring it. What's the point. It is a damaged architecture. The x5 is much better (still not great, but much better). I'd love to go to the Cortex-M3 with a flat 32 bit address space but for two reasons. Power is still way too high and we'd take a 6 month hit . as we are currently working with the msp430f5438a in a project, and for the Z1 mote we mostly support what is already in tinyos main, but there was room for improvements and there was a something-breakfast-called implementation in tinyprod that looked promising but haven't got the time to test. Breakfast was a multi-master I2C implementation done at John Hopkins by Doug Carlson. I snagged it and its part of tp-freeforall/prod(tp-master)/tos/chips/msp430/x5xxx/usci-v2. It shows up in i2c-mm. My implementation of i2c as well as a wrung out spi implementation is also in x5xxx/usci-v2. My i2c is in i2c-sm (for single master). The cc2538 is looking great, there's a port and plenty of work done already by the Contiki folks, taking a peak might be worthwhile if anyone wishes to port it to TinyOS. see above. The design of the 2538 is quite resonable. I'm not sure if one can attach the range extender to it. The internal radio is the 2520 or a close derivative. My two cents about it. Cheers! --Antonio On Tue, Nov 19, 2013 at 8:49 PM, Eric Decker <[email protected]<mailto:[email protected]>> wrote: On Tue, Nov 19, 2013 at 3:36 AM, Michiel Konstapel <[email protected]<mailto:[email protected]>> wrote: What would be the best jumping off point for our CC430F5137 based platform? First the choice of the CC430f5137 isn't great. It doesn't have much code space and it has very little RAM. 32K code and 4K RAM. But if that works for you great. If you can handle switching to 2.4GHz, the CC2538 looks very interesting. Its an ARM Cortex-M3 core coupled to a 2520 radio. But I'd recommend, using the 5438 coupled to a 2520/2591 (with range extender). I've just finished rewriting the 2520 driver. I'd also strongly recommend that you have somekind of non-vol storage that you can put core dumps into for failure analysis. tp-master has a Panic facility that I use for paranoid code. The mainline has a simple_panic which works well for debugging (put a single breakpoint in the panic code). But my main tag has a SD card with tons of storage and I put core dumps into that. If you are deploying in anykiind of reasonable fashion, things will go wrong. And figure that out will be the lion's share of time involved in making this stuff real. I write my code with that in mind. Eric, since I know you've done a lot of work on the 5xx series, I've taken the liberty of CCing you personally. No problem. As far as I can tell, tinyos-main (https://github.com/tinyos/tinyos-main) has no 5xx support. that is correct. There are lots of differences between tp-master and tinyos-main(master). However, tp-master tracks tinyos-main as its upstream. I need to do a pull here shortly. tinyprod (https://github.com/tinyprod/prod ) does, but I don't know what branch I would want to start from; master, mm-core or tp-master? I'm working my way through the commit logs and code, but I could use some guidance. You want to port your changes over to a branch off tp-master. But you want to make sure it is a branch and then tp-master will be your upstream. The surf platform is based on the same chip, but it has not been updated recently. You should be able to start from the surf platform. It has bitrotted but shouldn't be too bad. Once you get your platform going and stable, I'd like you to put the simple part of your platform code into tp-master and I'll deprecate the surf code. But only if schematics are available for your platform. Otherwise I'll just keep the surf code as the example cc430 code. Are there known issues with it, or the x5xx support in general? Any gotchas I should look out for? the 5438 code is solid and the subset of that which is also cc430 code should also be good. But there is no one actively wacking on cc430 code (the processors are too constrained). So your mileage will vary. But you should be okay. Kind regards, Michiel Konstapel -- Eric B. Decker Senior (over 50 :-) Researcher _______________________________________________ Tinyos-help mailing list [email protected]<mailto:[email protected]> https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help -- -- Antonio Liñán Colina R+D Engineer @: [email protected]<mailto:[email protected]> @: [email protected]<mailto:[email protected]> ------------------------------ Advancare Ph.: +34 935 511 403 http://www.advancare.com<http://www.advancare.com/> http://www.zolertia.com<http://www.zolertia.com/> http://zolertia.sourceforge.net http://webshop.zolertia.com -- Eric B. Decker Senior (over 50 :-) Researcher
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