Ethernet addon board for LPC
Started by ●October 6, 2005
Reply by ●October 6, 20052005-10-06
>
> > > Does anyone know of a low pin count USB host controller ?
> > >
> > > The best one so far is the Cypress SL811HS.
> > >
> > > I would prefer an SPI interface if possible
> >
> > MAX3420E - new part just released.
> >
> > http://www.maxim-ic.com/quick_view2.cfm/qv_pk/4751
> >
> > I haven't had a chance to play with it yet, but it looks good.
>
> That supports for USB device operation only, not USB host operation.
> However, it is a nice device--I have it working on ARM, MSP430, and
> MAXQ.
oops, my bad, didn't read the email clearly.
Thanks for the reply though - I'll know who to ask when I get
a question on the part :)
Dave
Reply by ●October 6, 20052005-10-06
Mike Ward wrote:
> I need to be able to plug in a USB flash drive, or hard drive, and
> read and
> write FAT etc data format.
>
> So, it must be a host controller, or possibly OTG.
If type does not matter, why not use an SD card?
There was an article in CircuitCellar (see
http://www.circuitcellar.com/magazine/176toc.htm "Portable FAT library
for MCU Applications").
I bought the article ($ 1,50) and it contains a FAT filesystem interface
towards an SD/MMC including source code.
So if this is the only reason for USB host, go for the SD card (easier
to implement than USB).
Rob
> I need to be able to plug in a USB flash drive, or hard drive, and
> read and
> write FAT etc data format.
>
> So, it must be a host controller, or possibly OTG.
If type does not matter, why not use an SD card?
There was an article in CircuitCellar (see
http://www.circuitcellar.com/magazine/176toc.htm "Portable FAT library
for MCU Applications").
I bought the article ($ 1,50) and it contains a FAT filesystem interface
towards an SD/MMC including source code.
So if this is the only reason for USB host, go for the SD card (easier
to implement than USB).
Rob
Reply by ●October 6, 20052005-10-06
David Hawkins about the ENC28J60:
> Don't hold your breath waiting for the part - I ordered a couple
> from digikey months ago ... still waiting.
We have just ordered some samples and these are being shipped to us
right now.
I think Digikey will only receive chips when mass production has started
(soon).
Rob
> Don't hold your breath waiting for the part - I ordered a couple
> from digikey months ago ... still waiting.
We have just ordered some samples and these are being shipped to us
right now.
I think Digikey will only receive chips when mass production has started
(soon).
Rob
Reply by ●October 6, 20052005-10-06
> David Hawkins about the ENC28J60:
>
> > Don't hold your breath waiting for the part - I ordered a couple
> > from digikey months ago ... still waiting.
>
> We have just ordered some samples and these are being shipped to us
> right now.
> I think Digikey will only receive chips when mass production has started
> (soon).
Yeah I figured the sales pitch preceeds actual parts :)
Digikey said they'd get the parts to me this month. I'm just
playing, so wasn't too concerned about delivery - other than
I do want them eventually!
Dave
Reply by ●October 6, 20052005-10-06
> There was an article in CircuitCellar (see
> http://www.circuitcellar.com/magazine/176toc.htm "Portable FAT library
> for MCU Applications").
> I bought the article ($ 1,50) and it contains a FAT filesystem interface
> towards an SD/MMC including source code.
Additional MMC/Fat code can be found here:
http://ulrichradig.de/site/arm_projekts/mmc_sd/index.htm
> http://www.circuitcellar.com/magazine/176toc.htm "Portable FAT library
> for MCU Applications").
> I bought the article ($ 1,50) and it contains a FAT filesystem interface
> towards an SD/MMC including source code.
Additional MMC/Fat code can be found here:
http://ulrichradig.de/site/arm_projekts/mmc_sd/index.htm
Reply by ●October 6, 20052005-10-06
I need to be able to plug in a USB flash drive, or hard drive, and read
and
write FAT etc data format.
So, it must be a host controller, or possibly OTG.
Otherwise, its easy to just use a serial port, and a FTDI or Silicon labs
serial to USB chip.
If Microchip can make a SPI to Ethernet chip, then a Cypress SL811HS with an
SPI interface cant be far away from one of the big guys. Philips have already indicated a device in the LPC family for end of Q1 '06,
but I need to start designing now.
Mike
-----Original Message-----
From: lpc2000@lpc2... [mailto:lpc2000@lpc2...]On Behalf Of
David Hawkins
Sent: 06 October 2005 17:13
To: lpc2000@lpc2...
Subject: RE: [lpc2000] Ethernet addon board for LPC >
> > > Does anyone know of a low pin count USB host controller ?
> > >
> > > The best one so far is the Cypress SL811HS.
> > >
> > > I would prefer an SPI interface if possible
> >
> > MAX3420E - new part just released.
> >
> > http://www.maxim-ic.com/quick_view2.cfm/qv_pk/4751
> >
> > I haven't had a chance to play with it yet, but it looks good.
>
> That supports for USB device operation only, not USB host operation.
> However, it is a nice device--I have it working on ARM, MSP430, and
> MAXQ.
oops, my bad, didn't read the email clearly.
Thanks for the reply though - I'll know who to ask when I get
a question on the part :)
Dave
_____
> .
_____ _____
This email has been scanned by Netintelligence
http://www.netintelligence.com/email
_____
write FAT etc data format.
So, it must be a host controller, or possibly OTG.
Otherwise, its easy to just use a serial port, and a FTDI or Silicon labs
serial to USB chip.
If Microchip can make a SPI to Ethernet chip, then a Cypress SL811HS with an
SPI interface cant be far away from one of the big guys. Philips have already indicated a device in the LPC family for end of Q1 '06,
but I need to start designing now.
Mike
-----Original Message-----
From: lpc2000@lpc2... [mailto:lpc2000@lpc2...]On Behalf Of
David Hawkins
Sent: 06 October 2005 17:13
To: lpc2000@lpc2...
Subject: RE: [lpc2000] Ethernet addon board for LPC >
> > > Does anyone know of a low pin count USB host controller ?
> > >
> > > The best one so far is the Cypress SL811HS.
> > >
> > > I would prefer an SPI interface if possible
> >
> > MAX3420E - new part just released.
> >
> > http://www.maxim-ic.com/quick_view2.cfm/qv_pk/4751
> >
> > I haven't had a chance to play with it yet, but it looks good.
>
> That supports for USB device operation only, not USB host operation.
> However, it is a nice device--I have it working on ARM, MSP430, and
> MAXQ.
oops, my bad, didn't read the email clearly.
Thanks for the reply though - I'll know who to ask when I get
a question on the part :)
Dave
_____
> .
_____ _____
This email has been scanned by Netintelligence
http://www.netintelligence.com/email
_____
Reply by ●October 6, 20052005-10-06
Guys,
It has to be USB.
I tried to convince the customer that a 1Gbyte SD card would suffice, but
they want to be able to walk up to the machine with a USB pendrive, and just
plug it in.
I have a lot of sympathy with their requirement.
USB has been so successful that it is a good standard.
Mike
-----Original Message-----
From: lpc2000@lpc2... [mailto:lpc2000@lpc2...]On Behalf Of
Rob Jansen
Sent: 06 October 2005 18:13
To: lpc2000@lpc2...
Subject: Re: [lpc2000] Ethernet addon board for LPC
Mike Ward wrote:
> I need to be able to plug in a USB flash drive, or hard drive, and
> read and
> write FAT etc data format.
>
> So, it must be a host controller, or possibly OTG.
If type does not matter, why not use an SD card?
There was an article in CircuitCellar (see
http://www.circuitcellar.com/magazine/176toc.htm "Portable FAT library
for MCU Applications").
I bought the article ($ 1,50) and it contains a FAT filesystem interface
towards an SD/MMC including source code.
So if this is the only reason for USB host, go for the SD card (easier
to implement than USB).
Rob _____
> .
_____ _____
This email has been scanned by Netintelligence
http://www.netintelligence.com/email
_____
It has to be USB.
I tried to convince the customer that a 1Gbyte SD card would suffice, but
they want to be able to walk up to the machine with a USB pendrive, and just
plug it in.
I have a lot of sympathy with their requirement.
USB has been so successful that it is a good standard.
Mike
-----Original Message-----
From: lpc2000@lpc2... [mailto:lpc2000@lpc2...]On Behalf Of
Rob Jansen
Sent: 06 October 2005 18:13
To: lpc2000@lpc2...
Subject: Re: [lpc2000] Ethernet addon board for LPC
Mike Ward wrote:
> I need to be able to plug in a USB flash drive, or hard drive, and
> read and
> write FAT etc data format.
>
> So, it must be a host controller, or possibly OTG.
If type does not matter, why not use an SD card?
There was an article in CircuitCellar (see
http://www.circuitcellar.com/magazine/176toc.htm "Portable FAT library
for MCU Applications").
I bought the article ($ 1,50) and it contains a FAT filesystem interface
towards an SD/MMC including source code.
So if this is the only reason for USB host, go for the SD card (easier
to implement than USB).
Rob _____
> .
_____ _____
This email has been scanned by Netintelligence
http://www.netintelligence.com/email
_____
Reply by ●October 6, 20052005-10-06
>> There was an article in CircuitCellar (see
>> http://www.circuitcellar.com/magazine/176toc.htm "Portable FAT library
>> for MCU Applications").
>> I bought the article ($ 1,50) and it contains a FAT filesystem interface
>> towards an SD/MMC including source code.
>
> Additional MMC/Fat code can be found here:
> http://ulrichradig.de/site/arm_projekts/mmc_sd/index.htm
The Circuit Cellar version is much better.
MMC/SD FAT Library, ~1k in size:
ftp://ftp.circuitcellar.com/pub/Circuit_Cellar/2005/176/Sham176.zip
>> http://www.circuitcellar.com/magazine/176toc.htm "Portable FAT library
>> for MCU Applications").
>> I bought the article ($ 1,50) and it contains a FAT filesystem interface
>> towards an SD/MMC including source code.
>
> Additional MMC/Fat code can be found here:
> http://ulrichradig.de/site/arm_projekts/mmc_sd/index.htm
The Circuit Cellar version is much better.
MMC/SD FAT Library, ~1k in size:
ftp://ftp.circuitcellar.com/pub/Circuit_Cellar/2005/176/Sham176.zip
Reply by ●October 6, 20052005-10-06
it is done! someone made it for you ;-)
you have both now, the SD card and thumb flash for your customer.
http://www.ghielectronics.com/USBwiz.htm --- In lpc2000@lpc2..., "Mike Ward" <MikeW@r...> wrote:
> Guys,
>
> It has to be USB.
>
> I tried to convince the customer that a 1Gbyte SD card would
suffice, but
> they want to be able to walk up to the machine with a USB
pendrive, and just
> plug it in.
>
> I have a lot of sympathy with their requirement.
>
> USB has been so successful that it is a good standard.
>
> Mike >
> -----Original Message-----
> From: lpc2000@lpc2... [mailto:lpc2000@lpc2...]On
Behalf Of
> Rob Jansen
> Sent: 06 October 2005 18:13
> To: lpc2000@lpc2...
> Subject: Re: [lpc2000] Ethernet addon board for LPC
>
> Mike Ward wrote:
>
> > I need to be able to plug in a USB flash drive, or hard drive,
and
> > read and
> > write FAT etc data format.
> >
> > So, it must be a host controller, or possibly OTG.
>
> If type does not matter, why not use an SD card?
> There was an article in CircuitCellar (see
> http://www.circuitcellar.com/magazine/176toc.htm "Portable FAT
library
> for MCU Applications").
> I bought the article ($ 1,50) and it contains a FAT filesystem
interface
> towards an SD/MMC including source code.
>
> So if this is the only reason for USB host, go for the SD card
(easier
> to implement than USB).
>
> Rob > _____
>
> > .
>
> _____ > _____
>
> This email has been scanned by Netintelligence
> http://www.netintelligence.com/email
> _____ >
>
you have both now, the SD card and thumb flash for your customer.
http://www.ghielectronics.com/USBwiz.htm --- In lpc2000@lpc2..., "Mike Ward" <MikeW@r...> wrote:
> Guys,
>
> It has to be USB.
>
> I tried to convince the customer that a 1Gbyte SD card would
suffice, but
> they want to be able to walk up to the machine with a USB
pendrive, and just
> plug it in.
>
> I have a lot of sympathy with their requirement.
>
> USB has been so successful that it is a good standard.
>
> Mike >
> -----Original Message-----
> From: lpc2000@lpc2... [mailto:lpc2000@lpc2...]On
Behalf Of
> Rob Jansen
> Sent: 06 October 2005 18:13
> To: lpc2000@lpc2...
> Subject: Re: [lpc2000] Ethernet addon board for LPC
>
> Mike Ward wrote:
>
> > I need to be able to plug in a USB flash drive, or hard drive,
and
> > read and
> > write FAT etc data format.
> >
> > So, it must be a host controller, or possibly OTG.
>
> If type does not matter, why not use an SD card?
> There was an article in CircuitCellar (see
> http://www.circuitcellar.com/magazine/176toc.htm "Portable FAT
library
> for MCU Applications").
> I bought the article ($ 1,50) and it contains a FAT filesystem
interface
> towards an SD/MMC including source code.
>
> So if this is the only reason for USB host, go for the SD card
(easier
> to implement than USB).
>
> Rob > _____
>
> > .
>
> _____ > _____
>
> This email has been scanned by Netintelligence
> http://www.netintelligence.com/email
> _____ >
>
Reply by ●October 6, 20052005-10-06
Hi,
Waw, This is great! I spent hours trying to find those
links I lost, searching on the net & couldnt find
them. But, now I got them all, plus some more ideas.
You guys are awesome.
I have one more question in the same lines. I am sure
there are lots of newer chip with greater benefits. To
start with I want to either go with CS8900 or Realtek
RTL 8019AS based add-on card <as my work is in proof
of concept stage>.
Is there a clear difference between the 2 chipsets? Is
one better than the other?
And I will be grateful if someone can point me to low
cost add-on boards based on RTL 8019AS.
Thanks a lot,
-Mike.
__________________________________
Waw, This is great! I spent hours trying to find those
links I lost, searching on the net & couldnt find
them. But, now I got them all, plus some more ideas.
You guys are awesome.
I have one more question in the same lines. I am sure
there are lots of newer chip with greater benefits. To
start with I want to either go with CS8900 or Realtek
RTL 8019AS based add-on card <as my work is in proof
of concept stage>.
Is there a clear difference between the 2 chipsets? Is
one better than the other?
And I will be grateful if someone can point me to low
cost add-on boards based on RTL 8019AS.
Thanks a lot,
-Mike.
__________________________________
