USB vcom port conflict with timer

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USB vcom port conflict with timer

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thoret
Contributor II

Hi,

I use the LPC1769. I built a project ro control 3 servo motors.

I communicate over a usb virtual com port with my computer.

If I start my programm and setup the usb first and after the pwm signal, the usb port is disconnected.

If I change it and setup the pwm first , it works.

But now I have to setup a timer. I setup the timer before the usb setup and after but the usb vcom port is not connectet to the computer.

I try to use the timer o and timer 1, but it dosn't help.

I use the cmsisv2p00 libary.

For my usb vcom port I implemented the RDB1768cmsis2_usb_serial and RDB1768cmsis2_usbstack example.

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Carlos_Mendoza
NXP Employee
NXP Employee

Hi Thore,

The use of LPCOpen is now recommend for most LPC MCUs, rather than the 'old-style' CMSIS-CORE library projects and examples. I would recommend you to download the LPC17xx LPCOpen package from this link:

LPCOpen Software for LPC17XX|NXP 


Hope it helps!

Best Regards,
Carlos Mendoza
Technical Support Engineer

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