Dear Sir: i use mdk 4.6 can downlaod use swd but can not step debug, it say etm disable swo debug sw preset,but iar arm can debug j-link how to solve this question ? Tks!!
Contact Keil support?
Stop abandoning threads on the same topic. http://www.keil.com/forum/59473/
Show screen shots of what you've got configure in your project now, under the debug options/settings.