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> Stuffing Serial Bluetooth Module Inside C1k Casing, share your success stories ...
albertr
post Jun 29 2005, 09:04 AM
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Since I haven't yet read/seen any posts about success stories on the subj (except for someone who claimed he added a usb bt dongle, but didn't support it by any tech info/pics), I'm getting ready to perform a first surgery on my C1K. Time permitting, I hope to do it sometime next week (maybe on July 4th holiday weekend).

Here's a few thoughts I have on the subj:
- There's a ffuart wired up to a port on the back of the C1K (so-called sharp i/o port) that has all modem control lines. I'm leaving it as a last resort (if everything else fails), since I want to retain it for rs232 comm.
- There's a btuart in PXA270 that has CTS/RTS control lines, but it's unknown if Sharp traced it on PCB. I would guess that it would make sense to have it traced just in case, i.e. planning for future models with built-in BT, but with Sharp you never know...
- Well, it leaves us with stuart that is wired up to IRDA transmitter/diode, but doesn't have any control lines, so hardware flow control is not possible.

If btuart lines can't be traced, either rs232 or irda has to go. Personally, I don't use IRDA myself, so for me the choice is clear. But not having hardware flow control leaves us with a challange of fighting high interrupt latency of bloated Sharp's kernel to avoid fifo overruns. I took a look at Sharp's serial driver, and as usual with sharp it's ... well, not good. I had troubles with overruns even at modest speeds. Now, the good thing is that it;s Intel PXA270, not Sharp's proprientary hardware, so full tech specs are available. I spend a few hours on "unsharp'ing" the serial driver, so now it seems to run ok. I tested it @ 460800 and not getting overruns anymore. I still need to test it @ 921600 and implement suspend/resume hooks, maybe add some hooks to front LED to show activity, etc.

Anyway, just thought it would be useful to have a dedicated thread where we all can share tech info and success stories. Please feel free to contribute... and I'll update you on status of my surgery.
-albertr
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Da_Blitz
post Sep 4 2005, 05:01 PM
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Cant wait to see this working so i can do it myself
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2x4ever
post Sep 5 2005, 03:12 AM
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I've contacted with an official Dell distributor in Russia and they will tell me about availability of this module tomorrow.

QUOTE(Da_Blitz @ Sep 5 2005, 01:01 AM)
Cant wait to see this working so i can do it myself
*

Don't wait, try to help us wink.gif
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albertr   Stuffing Serial Bluetooth Module Inside C1k Casing   Jun 29 2005, 09:04 AM
albertr   Here's an output of running a serial BT module...   Jun 29 2005, 09:18 AM
speculatrix   way to go, Albert, good luck! could you use t...   Jun 30 2005, 04:51 AM
euroclie   QUOTE(speculatrix @ Jun 30 2005, 02:51 PM)cou...   Jun 30 2005, 05:12 AM
albertr   C1K has two LEDs, both are software controlled, AF...   Jun 30 2005, 05:17 AM
daniel3000   QUOTE(albertr @ Jun 30 2005, 03:17 PM)As far ...   Jun 30 2005, 11:55 PM
speculatrix   Here's a discussion I started, which floundere...   Jun 30 2005, 02:05 PM
albertr   I think doing 860 would be even more challenging t...   Jun 30 2005, 04:55 PM
speculatrix   QUOTE(albertr @ Jul 1 2005, 01:55 AM)I think ...   Jun 30 2005, 10:23 PM
daniel3000   QUOTE(albertr @ Jul 1 2005, 02:55 AM)It looks...   Jun 30 2005, 11:59 PM
Boris   QUOTE(albertr @ Jul 1 2005, 06:55 AM)It looks...   Jul 1 2005, 12:54 AM
speculatrix   QUOTE(Boris @ Jul 1 2005, 09:54 AM)Nope, I...   Jul 1 2005, 04:21 AM
albertr   The backlight mod that you did is pretty cool. Com...   Jul 1 2005, 04:52 AM
daniel3000   QUOTE(albertr @ Jul 1 2005, 02:52 PM)As far a...   Jul 6 2005, 11:02 PM
Da_Blitz   i am still intrested in the internal usb ports tha...   Jul 1 2005, 07:35 PM
albertr   Sorry, was busy with other projects last weekend.....   Jul 6 2005, 04:54 PM
abegaza   i like the idea here, but let me get a few things ...   Jul 25 2005, 11:16 PM
polito   I'm definitely interesting in what comes of al...   Jul 29 2005, 11:07 PM
2x4ever   Albertr at HPC.RU wrote: QUOTEBTW, how did you ma...   Aug 31 2005, 06:51 AM
albertr   Thanks for sharing your experience! Now I see ...   Aug 31 2005, 07:39 AM
2x4ever   QUOTEThanks for sharing your experience! Now I...   Aug 31 2005, 08:24 AM
albertr   QUOTEYou may try to trace it another way: take dev...   Aug 31 2005, 09:24 AM
2x4ever   Any of BTUART pins can be used as usualy GPIO pins...   Aug 31 2005, 09:40 AM
albertr   Ahh, right! Sorry, I completely overlooked tha...   Aug 31 2005, 12:17 PM
2x4ever   QUOTE(albertr @ Aug 31 2005, 08:17 PM)Ahh, ri...   Sep 1 2005, 06:43 AM
2x4ever   It would be interesnting to fetch a datasheer for ...   Sep 1 2005, 06:55 AM
speculatrix   QUOTE(albertr @ Aug 31 2005, 09:17 PM)Ahh, ri...   Sep 1 2005, 07:04 AM
2x4ever   QUOTEah, apparently the 255 has 30% lower power co...   Sep 1 2005, 07:24 AM
speculatrix   http://repair4pda.org/disassembly_sharp.html   Sep 1 2005, 07:05 AM
albertr   I believe the scoop is a proprientary Sharp's ...   Sep 1 2005, 07:18 AM
albertr   What about stuart? In case you don;t need SIR. -al...   Sep 1 2005, 07:19 AM
2x4ever   QUOTEI believe the scoop is a proprientary Sharp...   Sep 1 2005, 09:01 AM
speculatrix   QUOTE(2x4ever @ Sep 1 2005, 06:01 PM)Yes it i...   Sep 1 2005, 12:18 PM
2x4ever   QUOTE(speculatrix @ Sep 1 2005, 08:18 PM)not ...   Sep 1 2005, 12:26 PM
speculatrix   QUOTE(2x4ever @ Sep 1 2005, 09:26 PM)If i...   Sep 1 2005, 01:25 PM
2x4ever   QUOTE(speculatrix @ Sep 1 2005, 09:25 PM)I...   Sep 1 2005, 02:02 PM
albertr   QUOTE(2x4ever @ Sep 1 2005, 05:02 PM)I'm ...   Sep 1 2005, 03:03 PM
2x4ever   QUOTE(albertr @ Sep 1 2005, 11:03 PM)I though...   Sep 1 2005, 03:31 PM
albertr   QUOTE(2x4ever @ Sep 1 2005, 06:31 PM)921600 i...   Sep 1 2005, 03:55 PM
2x4ever   QUOTE(albertr @ Sep 1 2005, 11:55 PM)QUOTE(2x...   Sep 1 2005, 04:05 PM
mikekostousov   QUOTE(2x4ever @ Sep 2 2005, 12:05 AM)QUOTE(al...   Sep 1 2005, 04:29 PM
2x4ever   QUOTE(mikekostousov @ Sep 2 2005, 12:29 AM)It...   Sep 1 2005, 04:40 PM
mikekostousov   QUOTE(2x4ever @ Sep 2 2005, 12:40 AM)I'll...   Sep 1 2005, 05:15 PM
albertr   QUOTE(mikekostousov @ Sep 1 2005, 08:15 PM)Wh...   Sep 1 2005, 05:59 PM
2x4ever   Sh*t. My bluetooth dongle is just sudenly stopped ...   Sep 2 2005, 10:50 AM
albertr   Ugh... In case you will be looking for a Class 2 d...   Sep 2 2005, 11:48 AM
2x4ever   Sorry, Albert, i don't know why but i can...   Sep 2 2005, 12:38 PM
2x4ever   I've bought the same billionton class 1 dongle...   Sep 2 2005, 12:58 PM
albertr   Yeah, BC2-Ext are getting hard to come by, since i...   Sep 2 2005, 01:12 PM
2x4ever   QUOTE(albertr @ Sep 2 2005, 09:12 PM)Yeah, BC...   Sep 2 2005, 01:27 PM
2x4ever   I've just bought a new NONAME dongle. I was un...   Sep 3 2005, 05:47 AM
albertr   It looks close to BC2-Ext reference design, but no...   Sep 3 2005, 07:53 AM
2x4ever   QUOTE(albertr @ Sep 3 2005, 03:53 PM)It looks...   Sep 3 2005, 07:55 AM
albertr   QUOTE(2x4ever @ Sep 3 2005, 10:55 AM)Yes, i...   Sep 3 2005, 08:36 AM
2x4ever   I have another porblem. After switching it to BCSP...   Sep 3 2005, 08:05 AM
albertr   QUOTE(2x4ever @ Sep 3 2005, 11:05 AM)I have a...   Sep 3 2005, 08:44 AM
2x4ever   QUOTE(albertr @ Sep 3 2005, 04:44 PM)Do you m...   Sep 3 2005, 08:50 AM
albertr   I don't use pskeys, but I believe it could be ...   Sep 3 2005, 09:42 AM
2x4ever   QUOTE(albertr @ Sep 3 2005, 05:42 PM)I don...   Sep 3 2005, 10:43 AM
2x4ever   Ok. I figured out. At the first look (internet sit...   Sep 3 2005, 10:54 AM
albertr   Correction: there're 17 soldering pads on the ...   Sep 3 2005, 11:04 AM
2x4ever   zharit' shashlik - is great All other things ...   Sep 3 2005, 11:14 AM
albertr   Here's the pics of DELL Truemobile 350 module ...   Sep 3 2005, 05:54 PM
Da_Blitz   Cant wait to see this working so i can do it mysel...   Sep 4 2005, 05:01 PM
2x4ever   I've contacted with an official Dell distribut...   Sep 5 2005, 03:12 AM
mikekostousov   QUOTE(2x4ever @ Sep 5 2005, 11:12 AM)I've...   Sep 5 2005, 04:55 AM
2x4ever   QUOTE(mikekostousov @ Sep 5 2005, 12:55 PM)QU...   Sep 5 2005, 05:22 AM
mikekostousov   QUOTE(2x4ever @ Sep 5 2005, 01:22 PM)QUOTE(mi...   Sep 5 2005, 05:39 AM
mikekostousov   For example: http://www.maxim-ic.com/quick_view2.c...   Sep 5 2005, 05:43 AM
2x4ever   QUOTE(mikekostousov @ Sep 5 2005, 01:43 PM)Fo...   Sep 5 2005, 06:12 AM
speculatrix   QUOTE(mikekostousov @ Sep 5 2005, 02:39 PM)By...   Sep 5 2005, 05:45 AM
albertr   QUOTE(speculatrix @ Sep 5 2005, 08:45 AM)Sudd...   Sep 5 2005, 06:17 AM
speculatrix   QUOTE(albertr @ Sep 5 2005, 03:17 PM)QUOTE(sp...   Sep 5 2005, 01:14 PM
albertr   If BCSP protorol is used, then I don't believe...   Sep 5 2005, 06:26 AM
2x4ever   QUOTE(albertr @ Sep 5 2005, 02:26 PM)If BCSP ...   Sep 5 2005, 06:35 AM
albertr   Umm, I wasn't thinking about using the same se...   Sep 5 2005, 06:45 AM
2x4ever   QUOTE(albertr @ Sep 5 2005, 02:45 PM)Umm, I w...   Sep 5 2005, 06:58 AM
speculatrix   QUOTE(2x4ever @ Sep 5 2005, 03:58 PM)QUOTE(al...   Sep 5 2005, 08:32 AM
2x4ever   QUOTE(speculatrix @ Sep 5 2005, 04:32 PM)QUOT...   Sep 5 2005, 09:05 AM
mikekostousov   QUOTE(2x4ever @ Sep 5 2005, 05:05 PM)QUOTE(sp...   Sep 5 2005, 10:14 AM
2x4ever   QUOTE(mikekostousov @ Sep 5 2005, 06:14 PM)Ok...   Sep 5 2005, 10:21 AM
2x4ever   The whole schematic should be a somthing like this...   Sep 5 2005, 11:00 AM
mikekostousov   QUOTE(2x4ever @ Sep 5 2005, 07:00 PM)The whol...   Sep 5 2005, 12:40 PM
albertr   Ahh, now I see what you are saying... Sorry, I mis...   Sep 5 2005, 03:38 PM
Da_Blitz   try typing ledctl on your command line, should giv...   Sep 5 2005, 07:09 PM
speculatrix   I came across an advert for a company who sell emb...   Sep 6 2005, 04:18 AM
2x4ever   QUOTE(speculatrix @ Sep 6 2005, 12:18 PM)I ca...   Sep 6 2005, 05:25 AM
albertr   Can your friend's friend help with getting a h...   Sep 6 2005, 05:07 AM
speculatrix   QUOTE(albertr @ Sep 6 2005, 02:07 PM)Can your...   Sep 6 2005, 05:38 AM
mikekostousov   QUOTE(speculatrix @ Sep 6 2005, 01:38 PM)QUOT...   Sep 7 2005, 12:25 PM
speculatrix   not had a response from my contact, but he tends t...   Sep 9 2005, 04:58 AM
speculatrix   sorry, still no news   Sep 12 2005, 04:15 AM
albertr   Just got news from CSR (Thanks, Miguel!) - The...   Sep 12 2005, 10:47 AM
2x4ever   albertr, i need your help It's seems that you...   Sep 13 2005, 09:32 AM
Da_Blitz   any one know if there is a second usb port with tr...   Sep 12 2005, 07:03 PM
albertr   Umm... weird. Is it in BCSP mode? Can you see if k...   Sep 13 2005, 10:02 AM
2x4ever   QUOTE(albertr @ Sep 13 2005, 06:02 PM)Umm... ...   Sep 13 2005, 10:07 AM
2x4ever   By the way: i've tried your desharpised serial...   Sep 13 2005, 10:11 AM
albertr   If you didn't solder it to ffuart, how about r...   Sep 13 2005, 10:17 AM
2x4ever   QUOTE(albertr @ Sep 13 2005, 06:17 PM)If you ...   Sep 13 2005, 10:27 AM
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