zeke 693 Posted October 9, 2011 Share Posted October 9, 2011 I bet his iphone auto-corrected regrets to repents Quote Link to post Share on other sites
SugarAddict 227 Posted October 9, 2011 Author Share Posted October 9, 2011 Nah, I even put g0rdon's LP part on the schematic to use the overlay on the board to see where the 10 pin headers would sit and it would have created a disaster to make those mountable... On a smaller version (such as what I'm doing next for RobG) it might be easier since there's a lot less pins... Something I should aim for RobG? Quote Link to post Share on other sites
RobG 1,892 Posted October 9, 2011 Share Posted October 9, 2011 It's up to you. I am thinking I can develop on a larger chip and then do the final board with the chip I want. Quote Link to post Share on other sites
SugarAddict 227 Posted October 10, 2011 Author Share Posted October 10, 2011 That would probably be cheaper at this point... and you could have another toy to play with afterwards still Quote Link to post Share on other sites
bluehash 1,581 Posted October 10, 2011 Share Posted October 10, 2011 Its probably late, but someone asked if the traces for USB were ok. The following "High Speed USB Platform Design" application note was published by Intel: This app note by Intel covers how to design for high speed USB. It zeke, RobG and SugarAddict 3 Quote Link to post Share on other sites
SugarAddict 227 Posted October 10, 2011 Author Share Posted October 10, 2011 Hmm... I crossed plane splits on the bottom twice, would have been ugly if I didn't... Quote Link to post Share on other sites
SugarAddict 227 Posted October 11, 2011 Author Share Posted October 11, 2011 Fixed those two plane crosses and some other tidbits... I think this will still be a work in progress... Quote Link to post Share on other sites
SugarAddict 227 Posted October 21, 2011 Author Share Posted October 21, 2011 Looks great. The only thing I could ask for is a header that matches the ezRF header on the MSP-EXP430F5529 for easy wireless connectivity. You do that, and I'll buy at least 4 of them. Hey gw, I forgot to ask you... Did you solder male or female on your RF2500T's? Quote Link to post Share on other sites
gwdeveloper 275 Posted October 21, 2011 Share Posted October 21, 2011 I put female headers on the RF2500t. Originally started using males but when I bought the MSP-EXP430F5529, it had male headers pre-installed. Switched to females on the RF2500t and added a male header to the Fraunchpad as well. Quote Link to post Share on other sites
SugarAddict 227 Posted October 21, 2011 Author Share Posted October 21, 2011 Fixed some layer issues with text (had some on tDocu... wtf? Moved them to tPlace), moved button pads outward a tad and increased their pad size a hair, added through hole vias to XT2 crystal pad... maybe did something else, I forget? lol Will see what else I may need to tweak once the boards show up... got all the Mouser parts today! (Accidentally got RA headers for the JTAG, not a big deal at all... RF2500T headers are male as well!) Schematic Board Quote Link to post Share on other sites
Rickta59 589 Posted October 23, 2011 Share Posted October 23, 2011 This looks great SugarAddict. Can't wait to see how they work! -rick Quote Link to post Share on other sites
sanyi 0 Posted October 24, 2011 Share Posted October 24, 2011 Hey SugarAddict (and RobG, Zeke and other guys in this thread) I have some questions about the F5529 USB usage on e2e. Greg Whitmore posted a reply with a link to your discussion here. Can you please take a look at my questions and try to answer them? I wanted to include a direct link pointing to my questions, but this forum, 43oh, complains: "Your post looks too spamy for a new user, please remove off-site URLs." I'm sure if you search for keywords "F5529 USB" you'll find it. I am familiar with the F5438A and I laid out my own boards based on that. That was in the pre-F55xx days, before TI integrated USB connectivity on chip. Now, these new F55xx devices seem pretty good, only they are still too new for a lot of docs to be available. So, before I commit the design to FR4, I thought I ask around. I just re-read my own questions just now, and perhaps they need a little more explanation. I am only concerned with the minimum circuit to get the USB port in the F5529 working, at this time. I will add a bunch of analog stuff, op-amps and I/O lines to the rest of the circuit, but those will come later. My questions were promted by the lack of clear documentation on the USB. Thanks, Sanyi Quote Link to post Share on other sites
bluehash 1,581 Posted October 24, 2011 Share Posted October 24, 2011 but this forum, 43oh, complains: "Your post looks too spamy for a new user, please remove off-site URLs." Make two more posts and you should be good. Sorry, but spammers hate this. Anyway, your link is below: Trackback: http://e2e.ti.com/support/microcontroll ... 41791.aspx Quote Link to post Share on other sites
SugarAddict 227 Posted October 25, 2011 Author Share Posted October 25, 2011 Just from a couple minutes of looking this morning, I would say check the family users guide on page 712-715 about USB clocking, page 415 shows you can use either ACLK or SMCLK for the RTC clocking, and 708 explains the PUR resistor useage (100ohm resistor, value shown page 76 of F5529 datasheet)... I'll respond again from work when I have a moment to look at the sheets... Quote Link to post Share on other sites
sanyi 0 Posted October 26, 2011 Share Posted October 26, 2011 Thanks SugarAddict for your reply. When you take a deeper look, consider the board to operate from a 3.3V Vreg, not USB powered. And I will want to program it via the JTAG connection, not through the boot loader. So, in this case do I even need the crystals at all, and what do I do with the PUR input? Did this clarify I obfuscate? Quote Link to post Share on other sites
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