| lekernel | who came up with that bright idea to have several tsop56 pinouts? even at a single manufacturer, e.g. micron, you can find both | 08:53 |
|---|---|---|
| lekernel | of course, the one I need is not manufactured apparently | 08:54 |
| mumptai | probably the same people who started to count the data-pins from 1 | 08:55 |
| lekernel | http://www.digikey.com/product-detail/en/JS28F640J3F75A/557-1602-ND/3927557 seems to have the same pinout, a bit faster, and smaller | 08:57 |
| lekernel | but still plenty of space | 08:57 |
| mumptai | bootloader + 2 x fw-image? | 08:58 |
| lekernel | mixxeo has only 1 firmware image, and a smaller one than M1 | 08:59 |
| lekernel | and no filesystem | 08:59 |
| lekernel | so we can definitely use a smaller flash chip | 08:59 |
| mumptai | how did the conversion to kicad work out? | 09:00 |
| lekernel | I didn't do it, no time/money for that | 09:00 |
| lekernel | interestingly enough, it's ddr3 sdram for micron: http://www.micron.com/parts/nor-flash/parallel-nor-flash/js28f640j3f75a | 09:01 |
| lekernel | "part status: production" looks good... maybe there won't be another NOR nightmare after all | 09:02 |
| mumptai | you might also want to consider this: http://www.digikey.com/product-detail/en/NP8P128A13TSM60E/NP8P128A13TSM60E-ND/2176528 | 09:04 |
| lekernel | hmm, the other one is also "J3/Strataflash series", to there's less risk of running into bugs imo | 09:06 |
| lekernel | we should move to serial flash at some point | 09:07 |
| mumptai | i think we had the pcm on some fpga board, and in the end it was programmed by xilinx impact, by telling it was some CFI flash | 09:08 |
| lekernel | the micron part has a numonyx datasheet | 09:09 |
| lekernel | almost the same as the one of the original flash chip, actually | 09:10 |
| lekernel | arrow has it too | 09:15 |
| lekernel | "in stock", they say. and then, 13 week lead time... | 09:16 |
| lekernel | ah, no, that's for backorders | 09:20 |
| mumptai | re | 11:39 |
| --- Sun Aug 25 2013 | 00:00 | |
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