Hi All,
I am trying out some demo code from the Keil RTX USB Device Memory example C:\Keil\ARM\Boards\Keil\MCB1700\RL\USB\Device\RTX\Memory\
My problem is that I cannot get the USB device recognised as there is no USB connect done automatically.
I suspect that there is a mechanism needed for the VBUS pin to create an interrupt which will then cause a task to run for the Power Event to the RTX.
I have configured the pin for VBUS functionality.
Can anyone point me in the correct direction for documentation.
Thanks
Hi,
Thanks for that answer.
I reviewed carefully and determined that a NPN transistor (instead of a PNP) had been fitted to the board (connecting D+ to 3V3 via 1.5kOhms for the softconnect function).
Correcting this fixed the problem.
Note that this is a custom board (not Keil MCB1700).
Ian