I want to try to disable/enable the interrupt from the USBRX input to see if this fixes a problem I am having. I have found many references to a LPC17xx.h header file, in particular this one that sounds as though it could be of interest to me:

"To disable a specific interrupt, use NVIC_DisableIRQ() (e.g. NVIC_DisableIRQ(UART0_IRQn)). You can find the interrupt numbers in LPC17xx.h."

But I have not been able to find this file or been able to determine the received data interrupt number or how to specify it. I blindly tried replacing n with 2 based on a wild guess from the chip data sheet. But UART0_IRQ2 is not found by the compiler.

I would appreciate any pointers that might allow me to disable/enable the UART0 received data interrupt.

Thanks.

Chuck, W5UXH

http://mbed.org/projects/libraries/svn/mbed/trunk/LPC1768/LPC17xx.h?rev=24 should go to it

In the compiler window open a project, click on the mbed library icon on the left, and then click open library on the right to explore and find files.

Great, exactly the information I needed. I had never noticed the "open library" so that is very useful to learn. Also, after a few stumbles with the syntax, I succeeded in disabling the interrupt and it fixed my problem.

Many thanks for the prompt answer to my problem! (I am very new to mbed so lots to learn.)