> Or brew your own referencing one of the many LPC214x examples: > > IAR: > IAR EWARM Kickstart install directory > \Program Files\IAR Systems\Embedded Workbench 4.0 > Kickstart\arm\src\examples\Philips\LPC214x\IAR-LPC-214X\USBMouse > > Keil: > http://www.keil.com/download/docs/306.asp USB HID > http://www.keil.com/download/docs/307.asp USB Mass Storage > http://www.keil.com/download/docs/308.asp USB Audio Device > > In the 3.2.2 release of FreeRTOS there is a USB CDC implementation: > \FreeRTOS\FreeRTOSV3.2.2\FreeRTOS\Demo\lwIP_Demo_Rowley_ARM7\USB > http://www.freertos.org/ > > www.at91.com offers a complete Mass Storage example supporting FAT12/16 > for > the AT91 parts. I haven't examined it too close, but it may utilize DMA. Almost forgot, there is USB Bulk code for the ST ARM7 in their support forum. http://mcu.st.com/mcu/modules.php?mop=modload&name=Splatt_Forums&file=viewtopic&topic!66&forum -Joel

An Engineer's Guide to the LPC2100 Series

http://www.segger.com/usb_msd.html http://www.segger.com/usb_bulk_stack.html http://www.micrium.com/contents/products/USB/USB.html The last two are the same I believe. Or brew your own referencing one of the many LPC214x examples: IAR: IAR EWARM Kickstart install directory \Program Files\IAR Systems\Embedded Workbench 4.0 Kickstart\arm\src\examples\Philips\LPC214x\IAR-LPC-214X\USBMouse Keil: http://www.keil.com/download/docs/306.asp USB HID http://www.keil.com/download/docs/307.asp USB Mass Storage http://www.keil.com/download/docs/308.asp USB Audio Device In the 3.2.2 release of FreeRTOS there is a USB CDC implementation: \FreeRTOS\FreeRTOSV3.2.2\FreeRTOS\Demo\lwIP_Demo_Rowley_ARM7\USB http://www.freertos.org/ www.at91.com offers a complete Mass Storage example supporting FAT12/16 for the AT91 parts. I haven't examined it too close, but it may utilize DMA. Regards, Joel

Does any body know of - and can recommend, a cheap good USB stack with a small code size ? The cheapest I have been offered is $4K (!!) and 4K code size. Much appreciated - this is an excellent forum and some magnificent contributions are made to assist people. Philips are very smart to support this forum. Well done all.