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| 19:11.34 | gkwhc | <PROTECTED> |
| 19:20.30 | alex4nder- | that depends |
| 19:20.44 | alex4nder- | on as many factors as there are design constraints |
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| 19:25.06 | SpeedEvil | It depends especially for 'linux' sized systems in that there are no such chips. |
| 19:25.55 | SpeedEvil | Once you get above something like the stm32 (say 100MHz, about a meg of flash and RAM tops), you start to gain awkward requirements like having to integrate three or four chips. |
| 19:26.09 | SpeedEvil | There are no 'single chip' linux solutions at all. |
| 19:26.32 | SpeedEvil | And even stm32 class requires an externa regulator. |
| 19:26.41 | SpeedEvil | you don't find much above 8 bits with _everything_ built in |
| 19:27.31 | gkwhc | my application is just a simple mp3 player, so an OS isnt required |
| 19:27.50 | gkwhc | its just that usually simplistic (integrated) design + cheap design conflicts with eachother. |
| 19:27.54 | SpeedEvil | You can do mp3 decoding on stm32 |
| 19:28.00 | SpeedEvil | Not really. |
| 19:28.17 | SpeedEvil | The cheap way to do an mp3 player is to buy a mp3 player chip. |
| 19:28.27 | SpeedEvil | There is no cheaper way |
| 19:29.03 | gkwhc | err sorry i meant "wave player" |
| 19:29.29 | alex4nder- | haha |
| 19:29.29 | gkwhc | i got so used to saying mp3..since thats what we all have |
| 19:29.34 | SpeedEvil | That can get a bit easier, as it reduces the computational requirements considerably. |
| 19:29.38 | alex4nder- | yah, the stm32f4 is a good part for doing that type of thing. |
| 19:29.50 | SpeedEvil | I'd recommend something like a stm32, I'd question the need for F |
| 19:30.15 | alex4nder- | well there's "free" dev board, so it's a good place to start. |
| 19:30.30 | alex4nder- | and scale down once your app is ready |
| 19:30.32 | gkwhc | i am also looking into having USB as well as SD features, so thats why i am wondering if its a good idea to have everything integrated or use separate chips |
| 19:30.50 | alex4nder- | gkwhc: you shouldn't be making these decisions. |
| 19:31.02 | gkwhc | alex4nder-: what do you mean? why not? |
| 19:31.13 | alex4nder- | gkwhc: because you're putting the cart before the horse |
| 19:31.37 | SpeedEvil | In addition, getting 'usb2' speeds is hard. |
| 19:31.50 | SpeedEvil | It may be vastly easier if you pop it out to put in a reader. |
| 19:32.25 | gkwhc | or use a reader chip |
| 19:32.54 | SpeedEvil | Indeed. |
| 19:49.36 | gkwhc | hm i also realized that using a SoC would mean a 4 layer PCB..so its determined :) |
| 19:49.52 | gkwhc | thanks guys! |
| 19:55.52 | alex4nder- | sounds great! just have that PCB whipped up |
| 20:00.04 | gkwhc | yep, im goin for the design with a 2 layer pcb, that way i dont have to worry about BGAs |
| 20:12.58 | alex4nder- | gkwhc: worry about BGAs? |
| 20:25.16 | gkwhc | alex4nder-: yeah, manually mounting 190+ ball BGAs |
| 20:36.03 | gkwhc | doesnt sound easy |
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