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| 17:36.09 | Ayla | how many pages on the NAND should be considered as being 2048-bytes wide? Only the first two? |
| 17:41.56 | larsc | either the first two or first four, can't remember exactly, but there is a section about this in the datasheet |
| 17:46.49 | Ayla | ok, so it's not the full eraseblock |
| 17:49.17 | larsc | no it's just the few pages which are loaded by the internal bootrom |
| 17:49.43 | Ayla | ok, that's what I wanted to know |
| 17:51.02 | larsc | the max pagesize supported by the bootrom is 2048 |
| 17:54.04 | Ayla | I'm trying to chainload uC/OS-II |
| 17:54.11 | Ayla | from ubiboot |
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| 20:24.43 | wpwrak | it's interesting how circuits behave if you expose them to rapidly changing acceleration forces in the order of 3-5 g. solder joint stress fractures. yummy :-) |
| 20:30.13 | larsc | are you building a rocket again? |
| 20:48.39 | wpwrak | naw, a communication device for moments of public disquiet |
| 20:54.40 | wpwrak | http://projects.qi-hardware.com/index.php/p/antorcha/ |
| 20:56.05 | wpwrak | having a bit of trouble with the timing, though. the effect only lasts for less than 100 ms, so you have to shake the stick very rapidly. right now, it's mounted on an IC tube, which flexes a bit. need to find some small aluminium rail ... |
| 21:11.59 | roh | wpwrak: hihi |
| 21:12.07 | roh | wpwrak: i like the project desc. |
| 21:15.29 | qi-bot | [commit] Paul Cercueil: Don't scan the NAND as it's already done elsewhere. (master) http://qi-hw.com/p/gmenu2x/64db1d7 |
| 21:15.31 | qi-bot | [commit] Paul Cercueil: Check if USB cable is plugged before returning the battery level. (master) http://qi-hw.com/p/gmenu2x/7484ad2 |
| 21:15.32 | qi-bot | [commit] Paul Cercueil: Open battery/USB file handlers only when needed. (master) http://qi-hw.com/p/gmenu2x/0d9977e |
| 21:15.32 | qi-bot | [commit] Paul Cercueil: Don't re-execute gmenu2x on error, just call main() again. (master) http://qi-hw.com/p/gmenu2x/a21650d |
| 21:15.34 | qi-bot | [commit] Paul Cercueil: Use function getSkinPath() instead of reading the dir of the binary (master) http://qi-hw.com/p/gmenu2x/cf20f36 |
| 21:15.37 | qi-bot | [commit] Paul Cercueil: Removed variable/function to get the directory of the executable. (master) http://qi-hw.com/p/gmenu2x/1241523 |
| 21:18.08 | larsc | i build something like that once, but without the accelerometer. it was rather hard to match the speed. and well people around me started to be annoyed by all the waving ;) |
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| 21:45.11 | wpwrak | roh: RF and acceleration sensor work perfectly. it's actually a nice example for OTA updates with atben/atusb on the other end :) |
| 21:46.09 | roh | ;) |
| 21:46.30 | wpwrak | larsc: maybe it was to big then :) i need the acceleration sensor because it's text. if i had small symmetric images, i could do without. |
| 21:49.21 | larsc | wpwrak: you are a usb expert. if i do a bulk transfer on a in endpoint, is this basically just telling the hardware to listen for incomming packets or is it also sending some kind of command to the other side of the link? |
| 21:53.43 | wpwrak | err, which side are you on ? in the case of host, you need to poll. on the side of device, you wait. |
| 21:54.04 | wpwrak | roles may look different depending on which layer you're on, too |
| 21:54.07 | larsc | i'm on both side basically ;) |
| 21:54.19 | wpwrak | oh dear :) |
| 21:55.07 | larsc | firmware on one side, libusb on the other and i'm trying to understand how it works |
| 21:56.22 | wpwrak | the host always initiates the communication. BUT the perspective changes a bit with how the device works |
| 21:56.43 | larsc | the datasheet for the chip claims that the device has a 1024 byte usb buffer, but the software always sends a 4096 byte bluk request |
| 21:56.58 | wpwrak | do you know this introduction to usb yet ? http://www.beyondlogic.org/usbnutshell/usb1.shtml |
| 21:58.25 | larsc | so i'm wondering will I see only transfers on the host side where only 1024 byte of those 4096 bytes buffers are used? |
| 21:59.41 | wpwrak | i think you're likely to see only 1024 bytes at a time, yes |
| 21:59.59 | wpwrak | unless your host combines things behind your back |
| 22:00.47 | larsc | ok, thanks |
| 22:09.20 | larsc | hm, on the other hand the standard says that a bulk transfer will be 512 bytes max |
| 22:13.52 | wpwrak | are you sure ? |
| 22:13.59 | wpwrak | at what speed are you operating ? |
| 22:16.11 | larsc | high-speed i guess |
| 22:16.34 | larsc | http://www.beyondlogic.org/usbnutshell/usb4.shtml#Bulk |
| 22:18.52 | wpwrak | that's just the packet size. you can have more than one packet per transfer |
| 22:20.41 | larsc | ah ok |
| 22:22.51 | larsc | so you send a request, the device respons with multiple data packets followed by an ack |
| 22:25.44 | wpwrak | at the wire level, i think you only have one DATAx per ACK. but if your api lets you use larger sizes (e.g., 4096), you have multiple IN-DATAx-ACK. |
| 22:27.03 | Ayla | guys, there's proprietary-licensed stuff on the Qi repo |
| 22:28.16 | Ayla | there's the Arial font on the source tree of gmenu2x |
| 22:38.19 | larsc | everybody hides ;) |
| 22:59.23 | kristianpaul | Ayla: is just hosted or already used? |
| 22:59.52 | qi-bot | [commit] Paul Cercueil: Remove unused (proprietary-licensed for some) XCF fonts. (master) http://qi-hw.com/p/gmenu2x/16d66d0 |
| 22:59.57 | Ayla | what are you talking about? :) |
| 23:01.08 | kristianpaul | font? |
| 23:03.37 | Ayla | I just removed them |
| 23:03.41 | Ayla | they were hosted, but not used |
| 23:05.11 | kristianpaul | ah, thanks ! |
| 23:05.33 | kristianpaul | he just saw the commit log :-| |
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