write to usb memory device

delene · Joined: 13 Oct 2003 Posts: 32

Please can someone give an example on how to write data to a usb memory stick - flash drive.

Would really appreciate it if code could be posted

Many thanks
Delene

franck · Guest

You need an usb host device to write something in a memory stick. Pic are only usb devices...

Douglas Kennedy · Joined: 07 Sep 2003 Posts: 755 Location: Florida

Remember USB is the horse that when designed by a committee becomes a camel. It might be said if RS232 (USB serial forerunner) is a flea then USB is the camel.Most often the PC is the host and USB devices are slaves. To have a PIC become the host is possible but it would need to be specifically written to support a specific USB device. Code to support all devices requires a bloated OS like windows with googles of space for driver after driver. Alternatives are MMC/SD cards since they have a PIC compatible SPI interface or there are specific chips that can interface with USB as a host and pass through data to a PIC. Search this forum I think FTDI has a usb host chip.

kender · Joined: 09 Aug 2004 Posts: 768 Location: Silicon Valley