On Sun, 12 Dec 2010, Manuel Borchers wrote: [snip]
> I tried with a cyg_thread_delay(1) et voila: stepping suddenly works! So > what's goind on here? Has anyone worked with openocd on an STM32? [snip] Hi Manuel, I have not any experience with STM32, below is just a *guess only* . I am looking on STM's idle thread action code: hal/cortexm/arch/current/include/hal_arch.h:294 #ifndef HAL_IDLE_THREAD_ACTION #define HAL_IDLE_THREAD_ACTION(__count) __asm__ volatile ( "wfi\n" ) #endif WFI -- stands for WAIT FOR INTERRUPTS (~sleep) may be this OP-code messes deal with JTAG? *Perhaps*, that should be CYG_EMPTY_STATEMENT for *JTAG* builds? Manuel, this is my guess only . I know that I can control the action for LPC2xxx targets, i.e. can disable any kind of power save mode in idle thread what is recommended for JTAG debugging. Sergei -- Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss
