Hi all,
I am using TIVA TM4C1237H controller .I wish to interface Keyboard and Pendrive to it.I am using FSUSB11MTX for multiplexing them.Using a GPIO pin I select the FSUSB11MTX . Now Iam able to interface 2 keyboards and switch between them .But while using pendrive I am able to transfer files as long as there is no device in the other port.As soon as I connect any device in other port the system hangs and shows unknown device for both ports.I guess there is issue in creating interrupts.
My requirement :
My controller has one USB port.I wish to interface a keyboard and pendrive.
Most of the time I am using a keyboard but for dumping some data ,I sometime require a pendrive.
On pressing a particular key in the keyboard , the D+ and D- lines of the USB shifts from keyboard to pendrive .
After successful data dumping D+ and D- lines shifts back to keyboard.
Till now all seems to work nicely as expected for the first time after power-up.
But when I do data dumping again , the controller fails to enumerate the pendrive , and data dumping fails .The control comes back to keyboard without data dumping.If I restart the system , then again the above scenario.
I dont wish to restart the machine , every time for this.
Regards,
Dhanush Nair
