USB Bulk OUT transfer problem

[XMatt]

Hey mkassner, would you be willing to share your project files with your tester file? I'm interested in starting a USB project but starting with test code for bulk transfer would GREATLY help. Also what hardware are you using (what USB IC are you using)?

Here is some simple example code for a USB application running on an XMOS device and the PC libusb code that talks to it. We use this on the XTAG-2 programmer.

XMOS side / 1 IN 1 OUT Bulk USB device
https://github.com/xcore/proj_xtag2/tre ... usb_loader

PC side / libusb interface to XMOS device
https://github.com/xcore/proj_xtag2/tre ... ial_number

Probably best not to run the host side without the OTP programming code commented out ;-) just incase but it will give you a simple reference for a complete USB device including host access code. This basically implements a USB bootloader to an XMOS device which in this example programs the serial numbers into manufactured XTAG-2 devices by loading and running code. In the deployed system the bootloader is contained in the device OTP.

[Ross]

Hi Ross,

thank for the reply. Again, very helpful stuff! I look forward to good documentation!

Also the guard parts is clear now. thanks!

best,

moritz

no problem ;)