Hello everyone!
Has anybody tried to interface LPC2148 with a USB Host Controller?
I have an existing project that is almost complete except for the USB Host
Controller.
CH374 was the first option but there are not enough resources for the codes of
this host chip.
If anybody has tried, I would appreciate advices and tips and sample source
codes, if possible.
Thank you very much.
Regards,
Marilou
USB Host Controller for LPC2148
Started by ●May 16, 2012
Reply by ●May 16, 20122012-05-16
Hi Marilou,
Advice: take sample source code for a host controller from NXP and just make it better.
Note: we invited young programmer for this job.
WBR
Vlad
----- Original Message -----
From: Marilou
To: l...
Sent: Wednesday, May 16, 2012 12:34 PM
Subject: [lpc2000] USB Host Controller for LPC2148
Hello everyone!
Has anybody tried to interface LPC2148 with a USB Host Controller?
I have an existing project that is almost complete except for the USB Host Controller.
CH374 was the first option but there are not enough resources for the codes of this host chip.
If anybody has tried, I would appreciate advices and tips and sample source codes, if possible.
Thank you very much.
Regards,
Marilou
Advice: take sample source code for a host controller from NXP and just make it better.
Note: we invited young programmer for this job.
WBR
Vlad
----- Original Message -----
From: Marilou
To: l...
Sent: Wednesday, May 16, 2012 12:34 PM
Subject: [lpc2000] USB Host Controller for LPC2148
Hello everyone!
Has anybody tried to interface LPC2148 with a USB Host Controller?
I have an existing project that is almost complete except for the USB Host Controller.
CH374 was the first option but there are not enough resources for the codes of this host chip.
If anybody has tried, I would appreciate advices and tips and sample source codes, if possible.
Thank you very much.
Regards,
Marilou
Reply by ●May 17, 20122012-05-17
--- In l..., "Marilou" wrote:
>
> Hello everyone!
> Has anybody tried to interface LPC2148 with a USB Host Controller?
> I have an existing project that is almost complete except for the USB Host Controller.
> CH374 was the first option but there are not enough resources for the codes of this host chip.
> If anybody has tried, I would appreciate advices and tips and sample source codes, if possible.
> Thank you very much.
>
> Regards,
> Marilou
>
So, you are looking for a more capable external host controller chip? The LPC2148 itself doesn't support USB Host and you are faced with trying to read/write an external controller fast enough to keep up with USB.
You can Google for 'usb host controller chip' and maybe you will find something. I didn't know what your requirements were so I didn't search very far.
If I were doing the project, I certainly wouldn't be using a chip like the LPC2148. I would want a chip that already had a USB Host peripheral and probably a DMA controller. And I would use the availability of source code to determine which chip manufacturer to select.
Richard
>
> Hello everyone!
> Has anybody tried to interface LPC2148 with a USB Host Controller?
> I have an existing project that is almost complete except for the USB Host Controller.
> CH374 was the first option but there are not enough resources for the codes of this host chip.
> If anybody has tried, I would appreciate advices and tips and sample source codes, if possible.
> Thank you very much.
>
> Regards,
> Marilou
>
So, you are looking for a more capable external host controller chip? The LPC2148 itself doesn't support USB Host and you are faced with trying to read/write an external controller fast enough to keep up with USB.
You can Google for 'usb host controller chip' and maybe you will find something. I didn't know what your requirements were so I didn't search very far.
If I were doing the project, I certainly wouldn't be using a chip like the LPC2148. I would want a chip that already had a USB Host peripheral and probably a DMA controller. And I would use the availability of source code to determine which chip manufacturer to select.
Richard
Reply by ●May 17, 20122012-05-17
Also,
When I placed the order, the total cost was of 48USD, in this manner there
would be no Customs cost according to the brazilian laws. Suddenly my card
was billed 60USD as freight costs, unadvised.
So, from a 48USD expect purchase, it has became a 200USD purchase.
It is unacceptable, if there was something written on the website about
freight costs being applied latter I'd have not bought it.
At.
2012/5/17 rtstofer
> **
> --- In l..., "Marilou" wrote:
> >
> > Hello everyone!
> > Has anybody tried to interface LPC2148 with a USB Host Controller?
> > I have an existing project that is almost complete except for the USB
> Host Controller.
> > CH374 was the first option but there are not enough resources for the
> codes of this host chip.
> > If anybody has tried, I would appreciate advices and tips and sample
> source codes, if possible.
> > Thank you very much.
> >
> > Regards,
> > Marilou
> > So, you are looking for a more capable external host controller chip? The
> LPC2148 itself doesn't support USB Host and you are faced with trying to
> read/write an external controller fast enough to keep up with USB.
>
> You can Google for 'usb host controller chip' and maybe you will find
> something. I didn't know what your requirements were so I didn't search
> very far.
>
> If I were doing the project, I certainly wouldn't be using a chip like the
> LPC2148. I would want a chip that already had a USB Host peripheral and
> probably a DMA controller. And I would use the availability of source code
> to determine which chip manufacturer to select.
>
> Richard
>
>
>
When I placed the order, the total cost was of 48USD, in this manner there
would be no Customs cost according to the brazilian laws. Suddenly my card
was billed 60USD as freight costs, unadvised.
So, from a 48USD expect purchase, it has became a 200USD purchase.
It is unacceptable, if there was something written on the website about
freight costs being applied latter I'd have not bought it.
At.
2012/5/17 rtstofer
> **
> --- In l..., "Marilou" wrote:
> >
> > Hello everyone!
> > Has anybody tried to interface LPC2148 with a USB Host Controller?
> > I have an existing project that is almost complete except for the USB
> Host Controller.
> > CH374 was the first option but there are not enough resources for the
> codes of this host chip.
> > If anybody has tried, I would appreciate advices and tips and sample
> source codes, if possible.
> > Thank you very much.
> >
> > Regards,
> > Marilou
> > So, you are looking for a more capable external host controller chip? The
> LPC2148 itself doesn't support USB Host and you are faced with trying to
> read/write an external controller fast enough to keep up with USB.
>
> You can Google for 'usb host controller chip' and maybe you will find
> something. I didn't know what your requirements were so I didn't search
> very far.
>
> If I were doing the project, I certainly wouldn't be using a chip like the
> LPC2148. I would want a chip that already had a USB Host peripheral and
> probably a DMA controller. And I would use the availability of source code
> to determine which chip manufacturer to select.
>
> Richard
>
>
>
Reply by ●May 18, 20122012-05-18
--- In l..., Felipe de Andrade Neves Lavratti wrote:
>
> Also,
>
> When I placed the order, the total cost was of 48USD, in this manner there
> would be no Customs cost according to the brazilian laws. Suddenly my card
> was billed 60USD as freight costs, unadvised.
FELIPE,
WHAT ARE YOU TALKING ABOUT !!!!!
Please give a web link to what you mean.
I have not seen this anywhere !!!!!
PS: Why are you complaining here ???
>
> Also,
>
> When I placed the order, the total cost was of 48USD, in this manner there
> would be no Customs cost according to the brazilian laws. Suddenly my card
> was billed 60USD as freight costs, unadvised.
FELIPE,
WHAT ARE YOU TALKING ABOUT !!!!!
Please give a web link to what you mean.
I have not seen this anywhere !!!!!
PS: Why are you complaining here ???
