Selection of Microcontroller
in [Embedded]
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From: ChrisQ on 10 Sep 2009 06:27 Chris Stratton wrote: > On Sep 8, 11:43 am, ChrisQ <blackh...(a)devnull.com> wrote: > >>> I want to make a Project in which i want to communicate b/w two USB Flash >>> Drive. > >> http://www.silabs.com >> >> They have usb functionality embedded into v fast (50mips) risc core 8051 >> style devices, with starter kits available for less than $100, Keil C >> based ide included as well. > > I'm not seeming to find anything on their site with USB __host__ > functionality, which part did you have in mind? > You weren't very clear on what you were trying to do, other than "communicate between two usb flash drive". If you want to get started experimenting with usb stuff, the silabs may be a good place, as the kits are low cost and easy to get running. If you are new to usb, one would think you will need all the help you can get and in particular, you won't want to start by writing your own usb stack. Usb stack transparency and integration will be one of the key items for any such project. Try this: https://www.silabs.com/PRODUCTS/MCU/USB/Pages/default.aspx I think ST micro offer a free usb stack for their arm 7tdmi series, but don't know about eval kits and the tools won't be cheap. ie: a lot of hassle to get started... Regards, Chris
From: Bill Davy on 10 Sep 2009 07:20 "ChrisQ" <blackhole(a)devnull.com> wrote in message news:0g5qm.90530$bU2.55997(a)newsfe29.ams2... > Chris Stratton wrote: >> On Sep 8, 11:43 am, ChrisQ <blackh...(a)devnull.com> wrote: >> >>>> I want to make a Project in which i want to communicate b/w two USB >>>> Flash >>>> Drive. >> >>> http://www.silabs.com >>> >>> They have usb functionality embedded into v fast (50mips) risc core 8051 >>> style devices, with starter kits available for less than $100, Keil C >>> based ide included as well. >> >> I'm not seeming to find anything on their site with USB __host__ >> functionality, which part did you have in mind? >> > > You weren't very clear on what you were trying to do, other than > "communicate between two usb flash drive". If you want to get started > experimenting with usb stuff, the silabs may be a good place, as the kits > are low cost and easy to get running. If you are new to usb, one would > think you will need all the help you can get and in particular, you won't > want to start by writing your own usb stack. Usb stack transparency and > integration will be one of the key items for any such project. > > Try this: > > https://www.silabs.com/PRODUCTS/MCU/USB/Pages/default.aspx > > I think ST micro offer a free usb stack for their arm 7tdmi series, but > don't know about eval kits and the tools won't be cheap. ie: a lot of > hassle to get started... > > > Regards, > > Chris Or use a Maxim USB SPI peripheral which does host as well.
From: Ulf Samuelsson on 12 Sep 2009 05:27 manishfire skrev: > I want to make a Project in which i want to communicate b/w two USB Flash > Drive. > > In this i want to transfer data form one that will act as Host to the > Client USB Drive. > > Please tell me which Micro controller is best for doing the same. > > > Since you are talking to TWO USB memory sticks, you need to have a controller with TWO USB host ports. Alternatively you need a hub. If you are using large USB sticks, then you might want to consider a device with High Speed USB. The AT91SAM9260 has two USB host ports, but full speed. The AT91SAM9G45 has two USB high speed host port The difficulty with ARM is the USB stack. If you use Linux, then you will have the stack included. > > > > --------------------------------------- > This message was sent using the comp.arch.embedded web interface on > http://www.EmbeddedRelated.com
From: vorange on 15 Sep 2009 00:17 On Sep 12, 5:27 am, Ulf Samuelsson <u...(a)atmel.com> wrote: > > The AT91SAM9260 has two USB host ports, but full speed. > The AT91SAM9G45 has two USB high speed host port. I too was looking for an mcu that could support high speed host. I looked at the 9260 but it was full speed only. I looked at the 9G45 and it was a BGA 324 package which means expensive to prototype & play around with. When will someone introduce a high speed host USB that runs linux which is in a flat pack package with pins.
From: Hans-Bernhard Bröker on 15 Sep 2009 07:19
vorange wrote: > When will someone introduce a high speed host USB that runs linux > which is in a flat pack package with pins. I won't say "never", but let me put it like this: don't hold your breath. Don't even rely on a set of scuba gear with an extra pair of bottles supplying you with air until then. |