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Memfault Beyond the Launch

USB Host Implementation via device hardware

Started by sau_sol September 27, 2009
Hi all

I am currently using LPC2138 for my designs.

now I got a similar controller LPC2141 with the additional feature of USB
device controller.

Now I want to know is there any way to implement a USB Host firmware by
using a USB device hardware.
If yes please let me know the method.

I want to interface a USB based CDMA modem with the controller, so can I
interface the modem with a USB device controller or I have to go for a USB
host controller.


	   
					
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"sau_sol" <saurabh.solanki@pasl.in> wrote in message 
news:W5adnVclzdSZ-CLXnZ2dnUVZ_gCdnZ2d@giganews.com...
> Hi all > > I am currently using LPC2138 for my designs. > > now I got a similar controller LPC2141 with the additional feature of USB > device controller. > > Now I want to know is there any way to implement a USB Host firmware by > using a USB device hardware.
No. You can use an external host controller though. -- Regards, Richard. + http://www.FreeRTOS.org Designed for Microcontrollers. More than 7000 downloads per month. + http://www.SafeRTOS.com Certified by T&#4294967295;V as meeting the requirements for safety related systems
> > >"sau_sol" <saurabh.solanki@pasl.in> wrote in message >news:W5adnVclzdSZ-CLXnZ2dnUVZ_gCdnZ2d@giganews.com... >> Hi all >> >> I am currently using LPC2138 for my designs. >> >> now I got a similar controller LPC2141 with the additional feature of
USB
>> device controller. >> >> Now I want to know is there any way to implement a USB Host firmware by >> using a USB device hardware. > > >No. You can use an external host controller though. > >-- >Regards, >Richard. > >+ http://www.FreeRTOS.org >Designed for Microcontrollers. More than 7000 downloads per month. > >+ http://www.SafeRTOS.com >Certified by T&#65533;V as meeting the requirements for safety related systems
> >
Can you tell me any external HOST controller for USB ? so I can interface the USB with my controller using some other protocol... Regards, Saurabh --------------------------------------- This message was sent using the comp.arch.embedded web interface on http://www.EmbeddedRelated.com
"sau_sol" <saurabh.solanki@pasl.in> wrote in message 
news:kqGdnfOwvJN7SF_XnZ2dnUVZ_iydnZ2d@giganews.com...
> > >> >>"sau_sol" <saurabh.solanki@pasl.in> wrote in message >>news:W5adnVclzdSZ-CLXnZ2dnUVZ_gCdnZ2d@giganews.com... >>> Hi all >>> >>> I am currently using LPC2138 for my designs. >>> >>> now I got a similar controller LPC2141 with the additional feature of > USB >>> device controller. >>> >>> Now I want to know is there any way to implement a USB Host firmware by >>> using a USB device hardware. >> >> >>No. You can use an external host controller though. >> >>-- >>Regards, >>Richard. >> >>+ http://www.FreeRTOS.org >>Designed for Microcontrollers. More than 7000 downloads per month. >> >>+ http://www.SafeRTOS.com >>Certified by T&#65533;V as meeting the requirements for safety related systems > >> >> > > > Can you tell me any external HOST controller for USB ? > so I can interface the USB with my controller using some other protocol... > > Regards, > Saurabh > > --------------------------------------- > This message was sent using the comp.arch.embedded web interface on > http://www.EmbeddedRelated.com
MAX3401 or something. Attach over SPI (device is slave)
On Sep 27, 9:13=A0am, "sau_sol" <saurabh.sola...@pasl.in> wrote:

> I am currently using LPC2138 for my designs. > now I got a similar controller LPC2141 with the additional feature of USB > device controller.
Why not use LPC2387 or a similar device that has USB OTG on-chip?
>"sau_sol" <saurabh.solanki@pasl.in> wrote in message >news:kqGdnfOwvJN7SF_XnZ2dnUVZ_iydnZ2d@giganews.com... >> > >>> >>>"sau_sol" <saurabh.solanki@pasl.in> wrote in message >>>news:W5adnVclzdSZ-CLXnZ2dnUVZ_gCdnZ2d@giganews.com... >>>> Hi all >>>> >>>> I am currently using LPC2138 for my designs. >>>> >>>> now I got a similar controller LPC2141 with the additional feature of >> USB >>>> device controller. >>>> >>>> Now I want to know is there any way to implement a USB Host firmware
by
>>>> using a USB device hardware. >>> >>> >>>No. You can use an external host controller though. >>> >>>-- >>>Regards, >>>Richard. >>> >>>+ http://www.FreeRTOS.org >>>Designed for Microcontrollers. More than 7000 downloads per month. >>> >>>+ http://www.SafeRTOS.com >>>Certified by T&#65533;V as meeting the requirements for safety related
systems
>> >>> >>> >> >> >> Can you tell me any external HOST controller for USB ? >> so I can interface the USB with my controller using some other
protocol...
>> >> Regards, >> Saurabh >> >> --------------------------------------- >> This message was sent using the comp.arch.embedded web interface on >> http://www.EmbeddedRelated.com > > > >MAX3401 or something. Attach over SPI (device is slave) > >
Sorry Sir But I am not able to find a part named MAX3401 so can you suggest something else for USB HOST converter. --------------------------------------- This message was sent using the comp.arch.embedded web interface on http://www.EmbeddedRelated.com
sau_sol wrote:

>>MAX3401 or something. Attach over SPI (device is slave)
> Sorry Sir But I am not able to find a part named MAX3401 so can you > suggest something else for USB HOST converter.
What I found were these (MAX1450?): http://www.maxim-ic.com/quick_view2.cfm/qv_pk/6226 Mel.
On Sep 30, 10:14=A0am, Mel <mwil...@the-wire.com> wrote:
> sau_sol wrote: > >>MAX3401 or something. =A0Attach over SPI (device is slave) > > Sorry Sir But I am not able to find a part named MAX3401 so can you > > suggest something else for USB HOST converter. > > What I found were these (MAX1450?): > > http://www.maxim-ic.com/quick_view2.cfm/qv_pk/6226
At first reading that does not appear relevant. That chip looks to be something that you can drop into a device with a wimpy USB and SD card interface, where its normally transparent, but when you switch it into a special mode than an external USB host can get higher speed access to the SD card.
"sau_sol" <saurabh.solanki@pasl.in> wrote in message 
news:b9SdnR2J_vyswl7XnZ2dnUVZ_uqdnZ2d@giganews.com...
> >"sau_sol" <saurabh.solanki@pasl.in> wrote in message >>news:kqGdnfOwvJN7SF_XnZ2dnUVZ_iydnZ2d@giganews.com... >>> > >>>> >>>>"sau_sol" <saurabh.solanki@pasl.in> wrote in message >>>>news:W5adnVclzdSZ-CLXnZ2dnUVZ_gCdnZ2d@giganews.com... >>>>> Hi all >>>>> >>>>> I am currently using LPC2138 for my designs. >>>>> >>>>> now I got a similar controller LPC2141 with the additional feature of >>> USB >>>>> device controller. >>>>> >>>>> Now I want to know is there any way to implement a USB Host firmware > by >>>>> using a USB device hardware. >>>> >>>> >>>>No. You can use an external host controller though. >>>> >>>>-- >>>>Regards, >>>>Richard. >>>> >>>>+ http://www.FreeRTOS.org >>>>Designed for Microcontrollers. More than 7000 downloads per month. >>>> >>>>+ http://www.SafeRTOS.com >>>>Certified by T&#65533;V as meeting the requirements for safety related > systems >>> >>>> >>>> >>> >>> >>> Can you tell me any external HOST controller for USB ? >>> so I can interface the USB with my controller using some other > protocol... >>> >>> Regards, >>> Saurabh >>> >>> --------------------------------------- >>> This message was sent using the comp.arch.embedded web interface on >>> http://www.EmbeddedRelated.com >> >> >> >>MAX3401 or something. Attach over SPI (device is slave) >> >> > > Sorry Sir But I am not able to find a part named MAX3401 so can you > suggest > something else for USB HOST converter. > > --------------------------------------- > This message was sent using the comp.arch.embedded web interface on > http://www.EmbeddedRelated.com
MAX3421E

Memfault Beyond the Launch