#milkymist IRC log for Tuesday, 2012-02-28

GitHub175[scripts] xiangfu pushed 1 new commit to master: http://git.io/FFKKVg03:14
GitHub175[scripts/master] include all demo in data partition - Xiangfu Liu03:14
cladamwwpwrak, [un-used fpga pins]: (bank0, none) (bank1, 1) (bank2, none) (bank3, 19) after compiled. i should have compiled every time. ;-)04:30
cladamwwell... needs to set few rules to find... phew, my faults.04:30
cladamw(J21/J22) regards to if 9*2 female header to 10*2, you can ask wolfspra1l for idea. ;-)04:32
cladamwi'll back.04:35
GitHub52[scripts] xiangfu pushed 2 new commits to master: http://git.io/LAlvQA04:55
GitHub52[scripts/master] copy all .fnp .jpg .png to patchpool/ not sub-folder - Xiangfu Liu04:55
GitHub52[scripts/master] reflash_m1.sh: move tested build to qi-hardware.com - Xiangfu Liu04:55
xiangfuFallenou, http://downloads.qi-hardware.com/software/images/Milkymist_One/latest/doc/04:57
xiangfuFallenou, now I build the handbook.pdf and midi.pdf form Werner.04:57
wpwrakcladamw: http://en.qi-hardware.com/mmlogs/milkymist_2012-02-27.log.html#t14:4706:19
wpwraknote how long it took wolfgang to think about the issue ;-)06:19
cladamwalright, so now let's go for what else pins we can add. :)06:22
cladamw10*2 means we can still have 4 extra assignements for pin. ;-)06:23
wpwrakon J21, i'm not sure we want to add more signals. they would either be beyond GND or beyond 5V. neither location looks too tempting.06:24
wpwrakmaybe we could just shift it by one row and make pins 1 and 2 GND ?06:26
wpwrakor, rather, by one column06:26
wpwrakJ22 could get a similar arrangement: 2*GND - 2*7 signals - 2*3V - 2*GND06:27
cladamwyou meant assignements for J21& J22 are all:06:29
wpwrak(looking at the latest change, after ERC/DRC) ah. L22_N/P have replaced 50_N/P. very interesting change ;-)06:30
cladamwJ21: 2*GND -> 2*6 signals -> 2*3.3V -> 2*5V -> 2*GND06:30
cladamwJ22: 2*GND -> 2*7 signals -> 2*3.3V -> 2*GND06:31
cladamwha...yes latest changes after ERC(actually i.e. compiled) ;-)06:32
wpwrakfor J21, we could also consider  2*GND - 2*6 signals - 2*3.3V - 2*GND - 2*5V06:32
wpwrakthat would make accidental contact with 5V less likely. but it would break 5V compatibility with its ancestors06:33
wpwraksometimes, a little DRC goes a long way ;-)06:33
cladamwyup...since I've not planed to do compiled then, but time is end almostly. so now will always compile it. ;-)06:34
wpwrakdoes the DRC take long ?06:34
cladamwso ou want J21 to break compatibility or NO?06:34
wpwrakin kicad, eeschema is pretty much instantaneous. pcbnew can be slow, though.06:35
cladamwwpwrak, very fast in maybe just less than 3 seconds. I just didn't do it.06:35
wpwrak(break compatibility) i would offer this for discussion06:35
wpwrakah, good06:36
wpwrakmaybe another item for the list ...06:36
cladamwthe real problem for compiling is to 'set' expected 'rule' to find un-connected wires, etc...;-)06:36
cladamwgood, but before you send I can edit draft to a latest new about J21/J22, is it okay?06:37
wpwraksure :)06:37
cladamwso i make two J21 sch pages for you. wait a moments. ;-)06:38
wpwrakbtw, does M1rc2 also have J21 ? and if yes, it it like in M1rc3 ?06:41
cladamwM1rc2 has J21which is same as M1rc3.06:44
wpwrakoh, and didn't we say to get rid of two of the buttons ?06:46
cladamwyes did discuss them in irc but not final. so i keep three still.06:51
cladamwif now is very sure, then we can reserve two un-used for J22. ;-)06:51
wpwraknaw, i think it's good to have a few spare pins. you never know when you need one more switch or such06:53
cladamwyou'd like to keep all 3 switches ? or few spare pins ? i'm confusing.06:56
wpwrakah, with "switch" i meant something like a load switch. something that needs a control signal :)06:58
cladamwbtw, i may take a little time to add new part if you'd feel asleepy. I'll provide two pdf links(both are 10*2 assignements: one is compatible, the other is uncompatiple))06:59
cladamwi still confusing, my poor english, so keeping three switches, or get rid of two of three, then save two for unused pins ?07:01
cladamwi read back your words, you seems to like to keep three buttons, if i misunderstood, correct me later. tks.07:07
wpwrakget rid of two and reserve their pins for future use07:23
wpwrakwe only need one button. there be no USD 500 screen saver ;-)07:24
cladamwphew... misunderstood. :)07:25
cladamwokay...so but you'd like to offer this two button(get rid of) to list for discussion ?07:26
wpwraki think we discussed these already07:26
wpwrakthe thing i'd like to offer for discussion is whether J21 should be 2*GND - 2*5V - 2*3V3 - ...07:27
wpwrakor 2*5V - 2*GND - 2*3V3 - ...07:27
cladamwdon't remember that discussed one button enough in list already ? ;-)07:29
wpwrakmaybe you remember this drawing ? http://downloads.qi-hardware.com/people/werner/tmp/onebutton-fsm.pdf07:32
wpwrakthat was already a long time ago. some six weeks :)07:32
cladamwsorry I've never seen this. maybe all s/w stuff I skipped to read always. :)07:34
wpwrakheh :)07:35
cladamwi apologied.07:35
wpwraknaw, no problem :)07:37
cladamw10X2 pins are more than 9X2. ;-)07:38
cladamwfinised, let me upload...07:39
wpwrakeven digi-key have one: http://search.digikey.com/us/en/products/87606-310LF/609-3555-ND/104550807:46
wpwrakand here's another one: http://search.digikey.com/us/en/products/1-534206-0/A26460-ND/29897407:48
wpwrak(different product category)07:48
wpwrakand 10 more in the same category. this one seems to be the cheapest: http://search.digikey.com/us/en/products/68683-310LF/609-3576-ND/152634507:50
wpwrak(didn't check all the details. maybe some of them have the wrong height or such)07:50
cladamwokay. I'll check them later07:51
cladamw(10X2 break) http://downloads.qi-hardware.com/people/adam/m1/tmp/m1r4/FPGA_J21_breakcompatibility.pdf07:51
wpwrakthanks !07:53
cladamw(10X2 compatible) http://downloads.qi-hardware.com/hardware/milkymist_one/sch/tmp/MILKYMISTONE.pdf07:53
wpwrakoh, you did both. damn. sent my mail too fast then :)07:54
xiangfucladamw, great PDF.07:57
xiangfumiss 'Drawn By: Adam' :-)07:57
cladamw(8.5mm hight) Molex: 090151212007:57
cladamw, Harwin: M20-783104607:57
cladamwxiangfu, no problem, this was done by Sebastien originally.07:58
wpwrakxiangfu: right ... well, he's the only one who can do it ;-)07:59
xiangfuModify By: adam :-)07:59
cladamwwpwrak, let's see yours in digikey. checking...08:00
cladamwwpwrak, yes, (links) yours are for high in 8.5mm, 8.64mm, 7.01mm08:06
cladamwi should sorting for filter again. ;-)08:07
Fallenouxiangfu (handbook and midi pdf) thanks !08:15
cladamwwpwrak, under digi-key's catagory "Connectors, Interconnects::Board to Board - Headers, Receptacles, Female Sockets", results at height (5~8.5mm) @ (520~847) Quantity Available. The FCI brand's p/n: 87606-310LF is good.08:48
wpwrakyes, looks good to me08:56
cladamwnice !08:58
cladamwwpwrak, first search about getting rid of two buttons: http://en.qi-hardware.com/mmlogs/milkymist_2012-01-09.log.html#t20:3309:00
cladamwwpwrak, so this idea has been agreed already by more people ? or just you only now ? i knew the idea of one button has been discussed, but don't know if else agreed already. ;-)09:02
wpwrakhere's a more recent thread: http://en.qi-hardware.com/mmlogs/milkymist_2012-01-29.log.html#t19:3609:14
wpwrakthe keyword here is:  Jan 29 16:41:36 <lekernel> great!09:14
wpwrakbtw, this may be a cheaper alternative. although from non-stock land: http://search.digikey.com/us/en/products/SSW-110-22-F-D-VS-K/SSW-110-22-F-D-VS-K-ND/234519909:16
cladamwaha... happy for keyword.09:17
Ladislashello lekernel09:20
cladamwwpwrak, different family09:29
cladamwwpwrak, it's okay though. some else is cheaper. http://octopart.com/partsearch#search/requestData&q=87606-310LF09:31
lekernely0 Ladislas09:40
Ladislasdilemma : get rid of economy by making our own processors :-)09:51
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