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Hello, has someone used one of NetChip's USB 2.0 controller with LPC2000 series (or any other uC) ? Is it working without problems ? What bandwidth can i reach in reality ? What is the rough price of these chips ? Regards, Martin |
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USB 2.0 with NET2270 / NET2272 and LPC2000 ?
Started by ●May 23, 2004
Reply by ●May 24, 20042004-05-24
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Martin, I've worked with the Cypress family of chips- EZ-USB, FX, FX2, and SX2 (stay away from the SX2). Don't have any experience with NetChip. Charles Manning on this list has worked with the ftdi chip. With any of these chips you'll probably be limited by the lpc gpio speed, assuming you're using gpio to interface with the USB chip, to a few megabytes per second bulk throughput. I recall seeing announcements of other ARM-based chips with on-board USB and in the last week or so there was a rumour posted about a future "LPC2130" with on-board USB. Curt -----Original Message----- From: [mailto:] Sent: Sunday, May 23, 2004 2:19 AM To: Subject: [lpc2000] USB 2.0 with NET2270 / NET2272 and LPC2000 ? Hello, has someone used one of NetChip's USB 2.0 controller with LPC2000 series (or any other uC) ? Is it working without problems ? What bandwidth can i reach in reality ? What is the rough price of these chips ? Regards, Martin Yahoo! Groups Links |
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Reply by ●May 24, 20042004-05-24
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There's also the TI TUSB3410 (think that's the right part number)
which is 8052 based and communicates with external chips over a UART/GPIO. So no need to bitbang a memory bus. Program execution is out of RAM (can either be loaded from the host driver or else a I2C rom). Haven't used it yet, but am planning to try it with the 210x in the next week or so. Shannon On Sun, 23 May 2004 21:07:08 -0700 "Curt Powell" <> wrote: >Martin, > >I've worked with the Cypress family of chips- EZ-USB, FX, FX2, and SX2 >(stay away from the SX2). Don't have any experience with NetChip. >Charles Manning on this list has worked with the ftdi chip. With any of >these chips you'll probably be limited by the lpc gpio speed, assuming >you're using gpio to interface with the USB chip, to a few megabytes per >second bulk throughput. > >I recall seeing announcements of other ARM-based chips with on-board USB >and in the last week or so there was a rumour posted about a future >"LPC2130" with on-board USB. > >Curt > >-----Original Message----- >From: [mailto:] >Sent: Sunday, May 23, 2004 2:19 AM >To: >Subject: [lpc2000] USB 2.0 with NET2270 / NET2272 and LPC2000 ? >Hello, > >has someone used one of NetChip's USB 2.0 controller with LPC2000 series >(or >any other uC) ? >Is it working without problems ? What bandwidth can i reach in reality ? >What is the rough price of these chips ? > >Regards, > > Martin >Yahoo! Groups Links > > >Yahoo! Groups Links |
