Here is the url of the current micro chip mouse demo code. http://www.microchip.com/14010/lit/pline/picmicro/families/16c7xx/support/us b120asm/index.htm 800 bytes per second is for each channel full duplex. It is ~comparable to 9600 baud serial with two stop bits and one parity. It has the added advantage of automatically detecting and retransmitting on errors. This doesn't come at the expense of BW since it will retry until it completes within the 10 msec polling rate. -----Original Message----- From: pic microcontroller discussion list [mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of William Tan Sent: Thursday, June 14, 2001 6:36 PM To: PICLIST@MITVMA.MIT.EDU Subject: Re: [PIC]:USB PIC? I browsed Cypress webpage and there are some application notes, but I'm not familiar with Cypress and don't have Cypress programmer ..... Unless someone got the schematic of Cypress home-built programmer .... I just a poor man, can't affort to buy a Universal progammer. So, I'm still looking forward to USB PIC development for experiment. Is there any application note for mouse or keyboard on USB PIC? William Andrew Warren wrote: > Martin Hill wrote: > > > If [an 800 byte/second limit on data transfers from a USB PIC] is > > true then it seems rather strange, it's actually slower than using > > RS-232 on the UART. > > True, Martin, but low-speed USB was never intended to be used for > bulk data transmission; it was specifically designed for devices like > mice and keyboards. 800 bytes/second is faster than you can type, > right? > > -Andy > -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu