I can read IDCODE, IMPCODE as well. But can not make the CPU enter debug state
> On Thu, Feb 09, 2012 at 02:40:21PM +0100, [email protected] wrote: > > Hi, > > Thank you for your reply. > > MIPS CPU is Broadcom BCM 7401. > > I tested it further and found out that if HALT state, > > SDRAM provides only 0s( zeros). > > I think it is logical, because the internal processor system bus clock > > was stopped and SDRAM is not refreshed. > > Or am I wrong? > > > > I think DEBUG state would be better, but I can not bring the CPU > > (BCM 7401) into Debug state. > > Only into HALT state. > > > > I tried to set control register values(bits) > > PrACc,ProbEn,ProbTrap and JtagBrk > > but when I read control register values(after writing > > PrACc,ProbEn,ProbTrap and JtagBrk > > into contol register) > > BRKST ( bit 3 of the control register) is still 0 , not set. > > Maybe someone can help. > > My experience with Broadcom is they do not release information openly. > > Do you have URLs for the BCM7401 data sheet / HRM (hardware reference > manual) / etc? > > Perhaps an earlier BCM CPU data sheet is available that will help. > > John > > ------------------------------------------------------------------------------ > Virtualization & Cloud Management Using Capacity Planning > Cloud computing makes use of virtualization - but cloud computing > also focuses on allowing computing to be delivered as a service. > http://www.accelacomm.com/jaw/sfnl/114/51521223/ > _______________________________________________ > OpenOCD-devel mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/openocd-devel ------------------------------------------------------------------------------ Virtualization & Cloud Management Using Capacity Planning Cloud computing makes use of virtualization - but cloud computing also focuses on allowing computing to be delivered as a service. http://www.accelacomm.com/jaw/sfnl/114/51521223/ _______________________________________________ OpenOCD-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/openocd-devel
