Comments on: Lightweight USB Host. Part 1 – Motivation. http://www.circuitsathome.com/mcu/programming/lightweight-usb-hostpart-1 A Solder Joint Thu, 09 Sep 2010 00:47:05 -0600 http://wordpress.org/?v=2.8.6 hourly 1 By: oleg http://www.circuitsathome.com/mcu/programming/lightweight-usb-hostpart-1/comment-page-#comment-3550 oleg Mon, 23 Nov 2009 01:21:41 +0000 http://wp.circuitsathome.com/?p=104#comment-3550 MAX3421E is full/low speed host; it won't work at high speed. By spec, high speed USB devices shall be capable to fall back to full speed; you can check if your camera works in this mode by connecting it to the PC via full speed hub. Since you are transferring single images, you won't need high speed anyway. MAX3421E is full/low speed host; it won’t work at high speed. By spec, high speed USB devices shall be capable to fall back to full speed; you can check if your camera works in this mode by connecting it to the PC via full speed hub. Since you are transferring single images, you won’t need high speed anyway.

]]> By: Cepin http://www.circuitsathome.com/mcu/programming/lightweight-usb-hostpart-1/comment-page-1#comment-3551 Cepin Sun, 22 Nov 2009 14:19:54 +0000 http://wp.circuitsathome.com/?p=104#comment-3551 Hello, Dou you think that this chip can be capable of connect USB 2.0 Hi-speed webcam. Webcam I think use isochronous transfers to send frames to PC...I need connect USB webcam (Logitech C200 ,UVC class) to Texas DSP.I need transfer only one picture...no video stream. And I hope that writing firmware will be easier because webcam is UVC class...? Thank you Hello,
Dou you think that this chip can be capable of connect USB 2.0 Hi-speed webcam. Webcam I think use isochronous transfers to send frames to PC…I need connect USB webcam (Logitech C200 ,UVC class) to Texas DSP.I need transfer only one picture…no video stream. And I hope that writing firmware will be easier because webcam is UVC class…? Thank you

]]> By: oleg http://www.circuitsathome.com/mcu/programming/lightweight-usb-hostpart-1/comment-page-1#comment-2830 oleg Fri, 18 Sep 2009 03:21:00 +0000 http://wp.circuitsathome.com/?p=104#comment-2830 I don't think so. The part has been around for quite a while, all bugs are known and documented together with workarounds. My guess for "not recommended" status is that they decided not to fix those bugs and not release the updated version of the part. I don’t think so. The part has been around for quite a while, all bugs are known and documented together with workarounds. My guess for “not recommended” status is that they decided not to fix those bugs and not release the updated version of the part.

]]> By: Tom http://www.circuitsathome.com/mcu/programming/lightweight-usb-hostpart-1/comment-page-1#comment-2829 Tom Fri, 18 Sep 2009 02:33:15 +0000 http://wp.circuitsathome.com/?p=104#comment-2829 On the MAXIM website page for the MAX3421E, this note is under "Status": All versions are Not Recommended for New Designs. Does this mean there is an issue with this part? On the MAXIM website page for the MAX3421E, this note is under “Status”:

All versions are Not Recommended for New Designs.

Does this mean there is an issue with this part?

]]> By: Need help to start with USB | keyongtech http://www.circuitsathome.com/mcu/programming/lightweight-usb-hostpart-1/comment-page-1#comment-54 Need help to start with USB | keyongtech Sun, 03 May 2009 23:06:24 +0000 http://wp.circuitsathome.com/?p=104#comment-54 [...] thanks everyone for your replies. I am currently looking into MAX3421E and hoping that the guy at http://www.circuitsathome.com/mcu/pr...usb-hostpart-1 knows what he is doing. Don mentioned ghielectronics: it's promising, cheap, 16$, but goes to 70$ [...] [...] thanks everyone for your replies. I am currently looking into MAX3421E and hoping that the guy at http://www.circuitsathome.com/mcu/pr…usb-hostpart-1 knows what he is doing. Don mentioned ghielectronics: it’s promising, cheap, 16$, but goes to 70$ [...]

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