Thursday, 2014-06-26

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shenkitija: hello02:34
tija: hi03:14
tijashenki: Completed the code. Couldn't test it on hardware fully03:15
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mithroCARAM_ / aps-sids: It would be great if you could figure out a way to let CARAM_ build a docker image for your new flumotion which works with gstreamer-1.X04:16
CARAM_mithro: sure, if aps-sids has a flumotion I can build and install I can put it in the image04:47
shenkitija: i saw the blog post. good work!05:04
shenkitija: reading your design doc, you've taken over the switches to get your debug output out?05:05
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tijashenki: yes05:15
tijashenki: you can upstream your exar driver. Will be useful for others05:15
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shenkitija_: heh, yeah, it would be nice to05:29
shenkitija_: the complication is that it's not it's own driver; it's a copy of the existing cdc-acm one, with some extra bits tacked on05:29
shenkitija_: so there would have to be some kind of quirk/extensability added to the existing driver to support this one05:30
shenkias we wouldn't want a copy of a driver in the tree05:30
shenkibut yeah, i'll work on it in my spare time :)05:30
mithrocdc-acm already has quirks support from what I can see?05:47
mithroayush3504: ping?06:16
ayush3504mithro: pong06:16
mithroReassigned PIC18F85J94 pins to use the 4 hardware UARTs. Two of the UARTs also share the only 2 available hardware I2C ports, so I2C for daughterboard auto-detection have to be bitbanged.06:17
mithroI don't think that is true?06:17
shenkimithro: not to the extent we want06:17
ayush3504mithro: what is not true06:17
mithroshenki: but probably the right approach to follow when extending?06:17
shenkimithro: yep06:17
mithroayush3504: The I2C is connected to the PSS-Lite right?06:19
ayush3504mithro: not sure, the datasheet mentions clearly the pin numbers it is available on. wait..06:20
mithroayush3504: actually appears not06:21
ayush3504mithro: page 372. "• Serial Clock (SCLx) – RC3/SCL1 or RD6/SCL206:22
ayush3504• Serial Data (SDAx) – RC4/SDA1 or RD5/SDA2"06:22
ayush3504mithro: one pin from both I2Cs overlap with two UARTs in PSS-Lite06:23
mithroayush3504: so? Sorting the spreadsheet shows there are plenty of options left for each of the uart pins06:25
ayush3504mithro: i think we're left with port G? and port G doesn't have 6 pins06:28
mithroayush3504: you should fill out "Connected to" column to make it easier to sort06:30
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ayush3504mithro: sure. got a couple of daughterboard schematics to finish and the req document.06:37
ayush3504mithro: as you said, I have to use one port in the mcu for each serial port, and there only port G left as an alternative, which has 5 pins so I didn't use port G06:38
ayush3504mithro: so there are no options left06:38
mithroayush3504: I didn't say "you have to use one port for each serial port" I said "you should try to use one port for each serial port"06:38
mithroayush3504: you can also use the PSS-Lite to build one virtual port too06:39
ayush3504mithro: virtual port?06:39
mithro11.14 Virtual PORT - This device includes a single virtual port, which is used to construct a logically addressed 8-bit PORT from 8 physically unrelated pins on the device.06:40
ayush3504mithro: oh okay06:40
tija_dang! was about to do a final test on hardware before committing and the power goes off06:45
mithroayush3504: there seem to be a number of mistakes in your asignments06:49
mithroayush3504: looking at this spreadsheet, you haven't assigned any hardware peripherals to port e?06:54
ayush3504mithro: I have, maybe i didn't update is right06:55
mithroUART1 is on PORTA06:56
mithroUART2 is on PORTB06:56
mithroUART3 is on PORTC06:56
mithroUART4 is on PORTD06:56
ayush3504mithro: yes06:56
ayush3504mithro: it's currently this way06:57
mithrono hardware peripherals are on PORTE, PORTF or PORTG06:57
ayush3504mithro: port E has UART506:57
mithroUART5 is bit-banged and can be put on pretty much any port, right?06:58
ayush3504mithro: i.e. slot 406:58
ayush3504mithro: yes, but how will it make difference06:58
mithroayush3504: move it to PORTH then07:02
mithrowhich frees up PORTE for a hardware UART07:02
ayush3504mithro: what will we use PORTE for?07:02
mithrowhich means that PORTC can be used for I2C/SPI07:03
ayush3504mithro: sounds good07:07
ayush3504mithro: how many status LEDs are reasonble?07:14
mithroayush3504: we'll figure that out when everything else is sorted07:18
mithroayush3504: basically "anything which isn't used can be a status LED" :P07:18
mithroayush3504: I think you want UART3 on SLOT3 to be less confusing07:18
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ayush3504ayush3504: so this is like having pads for smd leds on every free pin?07:19
ayush3504mithro: ^07:19
mithroayush3504: basically, there isn't any reason to keep a pin-unused07:20
ayush3504mithro: or a header for free pins?07:20
mithroayush3504: we want to assign the SPI hardware too07:21
ayush3504mithro: what's the SPI hardware07:21
mithroayush3504: the PIC has a SPI hardware controller, like it's hardware UART07:22
mithrowhich are assignable via the PPS-Lite07:22
mithroideally we'd want to put it on PORTC, but it seems PORTC doesn't have two 4n+1 pins07:22
ayush3504mithro: yeah. SPI will need 4 pins?07:23
ayush3504mithro: hard to figure out for me, really getting sleep deprived :p07:23
mithroIt uses a 4n,4n+1,4n+2,4n+3 config07:24
ayush3504mithro: yeah, maybe we can shift one of the uarts to port G?07:25
mithroseems like your slots should be named SLOT1->SLOT6 rather than SLOT0->SLOT5 to match UART numbers?07:31
mithroannoyingly PORTF and PORTG both don't have any 4n+1 pins either07:33
mithroPORTA also has the RX/TX switch to every other port config so far07:34
mithro4n+1 pins are in short supply it seems07:43
ayush3504mithro: yeah07:56
mithrobasically the virtual IO port turns out to be pretty useless because we ran out of 4n+1 pins07:59
mithroayush3504: please take a look at the spreadsheet now08:05
mithroayush3504: does that all look good? Should we go about making the remaining LEDs?08:05
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aps-sidsslomo: I'm still stuck here with "GStreamer-CRITICAL **: gst_segment_to_running_time: assertion `segment->format == format' failed" and not able to figure out what is wrong. Can you please have a look at this log and/or suggest something?  --
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ayush3504mithro: yes, looks good. thanks13:35
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