Posted on May 17, 2011 at 14:11Hi ANN,I have some bits using TIM1 on a ST..103.. that may help. These use the standard libraries.Put this somewhere in your main.   NVIC_InitTypeDef             NVIC_InitStructure;   TIM1_TimeBaseInitTypeDef     TIM1_...

Posted on May 17, 2011 at 14:11Thanks for the replies,I am using the IAR tools.As leppie suggested, core_cm3.h holds the key.Cheers,Andy.

Posted on May 17, 2011 at 14:06Hi Thomas,Thanks for answering so quickly. I'm sorry my original post was not very clear. After hours of trying to fix this I have an answer but just in case anyone else has this problem I'll try to explain what I was ...