> > > > >Either a FTDI copycat (take a look at the programmer's manual) or they >licensed FTDI's core? > >Looks convenient and interesting if the price is right... > >http://www.instantusb.com > > >Best regards, > >Ken Pergola Hi Ken, Now read the fine print: ;-( "Supports low speed USB" No mention of "Full Speed" or "High speed" modes. In other words, this is not anything like a FTDI chip ("Full speed" device) and it effective Baud rate will be around 9600 Baud as this is the "real" bandwidth of the low-speed USB side (8 bytes per 1mS). Yes, low-speed devices are part of both USB 1.1 and USB 2.0 specifications. USB 2.0 can be that slow! The 3Mbps referance refers to the UART bandwidth. See Electrical specifications, page 2 of document http://www.linxtechnologies.com/ldocs/pdfs/SDM-USB-QS-S.pdf Not much use having a 3Mbps UART when the USB side is 8 bytes per 1mS. ;-( To me it very much appears that readers are being misled without actually being lied to. The devil is in the detail. I would not be surprised if this was just a bastardized USB micro. 1k EEPROM, 16-pins, someone may recognize it. Although some aspects of it do look like a FTDI chip I have not seen the FTDI chip specified for low-speed mode and I would say that the operation of this chip (its firmware) has been modeled on a FTDI chip. The same may be true of the API. See http://www.usbmicro.com/ for something similar. This also is a low-speed USB device. Regards, Jim Robertson NEWFOUND ELECTRONICS -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu