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| 03:52.23 | keebler | HELLO FROM THE 2ND REVISION MEB!!!! |
| 03:58.47 | crazedpsyc | hello there, my future hardware |
| 03:58.51 | crazedpsyc | nice to meet you |
| 04:15.21 | keebler | :) |
| 04:16.08 | keebler | All the interfaces seem to work, except, 12vdc is a bit much for the regulator on a 2layer board without significant heat dissipation. |
| 04:17.55 | keebler | 9vdc also gets warm, but it's been over an hour so far and no thermal shutdowns. |
| 04:55.56 | crazedpsyc | personally I don't see a problem with sticking a heatsink on the dev board, just keep it in mind for the others |
| 05:08.51 | keebler | Well, I designed it with the intention of it being able to be integrated in very tight places. A heatsink would potentially exceed the height... of which, only 4mm remains from top of the DPAK to top of eth connector. |
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| 13:20.25 | lkcl | keebler: hooraaay |
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| 17:43.13 | keebler | woot! |
| 17:43.19 | keebler | root@firemothEOMA:~# i2cdetect -y 1 0 1 2 3 4 5 6 7 8 9 a b c d e f |
| 17:43.23 | keebler | 00: -- -- -- -- -- -- -- -- -- -- -- -- -- |
| 17:43.25 | keebler | 10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- |
| 17:43.27 | keebler | 20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- |
| 17:43.30 | keebler | 30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- |
| 17:43.33 | keebler | 40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- |
| 17:43.35 | keebler | 50: -- -- -- -- 54 -- -- -- -- -- -- -- -- -- -- -- |
| 17:43.38 | keebler | 60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- |
| 17:43.40 | keebler | 70: -- -- -- -- -- -- -- -- |
| 17:43.43 | keebler | root@firemothEOMA:~# i2cdetect -y 0 0 1 2 3 4 5 6 7 8 9 a b c d e f |
| 17:43.46 | keebler | 00: -- -- -- -- -- -- -- -- -- -- -- -- -- |
| 17:43.48 | keebler | 10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- |
| 17:43.51 | keebler | 20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- |
| 17:43.53 | keebler | 30: -- -- -- -- UU -- -- -- -- -- -- -- -- -- -- -- |
| 17:43.56 | keebler | 40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- |
| 17:43.59 | keebler | 50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- |
| 17:44.01 | keebler | 60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- |
| 17:44.04 | keebler | 70: -- -- -- -- -- -- -- -- |
| 17:44.06 | keebler | root@firemothEOMA:~# |
| 17:46.15 | keebler | i2cdump -r 0x54 |
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| 22:29.06 | rmull | lkcl: In response to your question as to whether or not I replaced u-boot - yes, I did. |
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| 23:14.16 | vgrade | hi guys |
| 23:14.26 | vgrade | im following this http://rhombus-tech.net/allwinner/a20/boot/ |
| 23:14.54 | vgrade | I'm interested in the following comments |
| 23:14.57 | vgrade | the issue we have is that routing SD0 through to a MicroSD card slot proved to be much too challenging for a 6-layer board where there are only 3 signal layers (41 x 75mm PCB). instead, SD3 was routed to the MicroSD. |
| 23:15.01 | vgrade | the upshot of that is that booting from SD/MMC directly is not possible. so - leaving the wits-tech compiled NAND-capable boot0/boot1 in place, and copying a sunxi-compiled u-boot into the FAT NAND partition seems to do the trick. |
| 23:15.57 | vgrade | the instructions call for a special build of u-boot without SPL in config |
| 23:16.24 | vgrade | can someone explain this in a bit more detail? |
| 23:17.19 | vgrade | I've currently flashed a SPL version of uboot to nand and it boots my uImage but kernel can't find mmcblk0p2 |
| 23:18.00 | vgrade | how does having a non SPL u-boot version help here ? |
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