I'm using the following:
Custom board based on TWR-K60F120M
Keil uV 4.60
I am trying to talk to an XBOX Controller (not my choice) using the TWR-K60F120M as a HOST HID Device. I took the example hid_mouse project and modified it by changing the USB_HOST_DRIVER_INFO class/subclass/protocol to 0xFF. In the main loop under case USB_DEVICE_INUSE I added:
tx_pipe = _usb_hostdev_find_pipe_handle(hid_device.DEV_HANDLE, hid_device.INTF_HANDLE, USB_INTERRUPT_PIPE, USB_SEND);
to get a pipe handle to send data to the XBOX controller. In the process_mouse_buffer function, I added:
tr.G.TX_BUFFER = VIBRATE_ON;
tr.G.TX_LENGTH = 0x08;
_usb_host_send_data(host_handle, tx_pipe, &tr);
to send data to respond to XBOX controller button inputs.
This works fine. I can send packets that control the leds and rumble motors no problem. The problem arises when I detach the controller from the micro. The micro seems to get stuck. I plug it back in and it doesn't responds. So I rebuild the USB library with the debug output turned on and I get the following output on the serial port when I detach the controller before the crash:
_usb_host_close_pipeGoing to idle state
It looks like with it tries to execute the function _usb_host_close_pipe in host_close.c but it never makes it out.
Does anyone have any idea what is wrong? Are there any examples of an usb hosting a HID device like a joystick showing IN/OUT comms on two interrupt endpoints?
Any info would be greatly appreciated.