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| 20:37.14 | gkwhc | Hey guys, i usually find myself in the cycle of starting embedded systems/DSP RTOS programming, and then getting really intimidated by it (because of how immense/complicated a small system is composed of). Do yall have any suggestions? |
| 20:37.55 | SpeedEvil | Grow a pair? |
| 20:38.05 | SpeedEvil | Or more seriously - start small? |
| 20:38.55 | gkwhc | im working on a wave player - do you think thats small enough? |
| 20:39.13 | SpeedEvil | wav player? |
| 20:39.22 | gkwhc | yeah, it really shouldnt be that hard/complicated |
| 20:39.30 | SpeedEvil | Well, it's nice and modular. |
| 20:39.52 | SpeedEvil | Display 'hello world' on your LCD, print out when the buttons change. |
| 20:40.22 | SpeedEvil | Read from SD - display 'OK' - if you get the expected value. |
| 20:40.45 | SpeedEvil | Output a squarewave to the DAC, ... |
| 20:41.19 | gkwhc | alot of modules that need to be stitched together |
| 20:41.27 | SpeedEvil | Sure. |
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| 20:51.49 | m4rz | hi |
| 20:52.10 | m4rz | I've a jffs2 fs extracted from a printer usb firmware |
| 20:52.40 | m4rz | but I've tried to mount but allways get mount: /tmp/mtdblock0: can't read superblock |
| 21:09.30 | SpeedEvil | Are you trying to mount a file? |
| 21:10.26 | m4rz | http://blog.2of1.org/2010/07/11/mounting-jffs2-on-ubuntu/ |
| 21:12.33 | SpeedEvil | yeah - that's what I meant |
| 21:12.35 | SpeedEvil | No clue |
| 21:44.14 | m4rz | ok |
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| 21:54.47 | roxfan | are you sure it's jffs2? |
| 21:58.01 | m4rz | not, I've used binwalk (newest version) and I get YAFFS |
| 22:04.33 | m4rz | roxfan |
| 22:04.42 | m4rz | how I can identify? |
| 22:05.23 | roxfan | look at the file |
| 22:05.46 | roxfan | iirc jffs2 uses a specific magic for all sectors (19 83 or something) |
| 22:06.20 | roxfan | yaffs has 5941FF53 |
| 22:08.06 | m4rz | binwalk output from my firmware I get many lzma files, and two yaffs2 fs |
| 22:08.41 | roxfan | don't trust it too much, it can produce false positives quite often |
| 22:09.25 | m4rz | then how I check the firmware |
| 22:09.36 | roxfan | i told you, look at the file |
| 22:10.09 | roxfan | you've got a hex viewer i hope? |
| 22:10.20 | m4rz | yes |
| 22:11.04 | roxfan | look at the offsets binwalk produces, see if they look like fs images or not |
| 22:18.06 | m4rz | I'm working over ssh, hexdump or similar ? |
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