Renesas M32R-FPU Instrukcja Użytkownika Pobierz pdf (Strona 22)

M32R Debugger and Trace 2 2 T r O n c h i p

TrOnchip

The OCE unit of the M32R allows to set on-chip breakpoints. The registers are controlled by TRACE32.

TRACE32 uses the on-chip trigger registers to perform on-chip breakpoints, which can be set in the

Data.List window or in the dialog Breakpoint.Set. The current user interface of TRACE32 offers many

possible configurations of the OCE unit. However the usable number of breakpoints is depending on the

device.

• Up to 32 program address breakpoints

(M32192: 4 program breakpoints)

• Up to 4 data address breakpoints

(M32192 : 4 data breakpoints)

The amount of range breakpoints is limited, that’s why it is sometimes useful to set the TrOnchip.CONvert

option. When enabled, this option let transform range breakpoints into normal, if necessary. The OCE can

perform more operations than TRACE32 offers with it’s user interface e.g. build a chain of breakpoints.

The on-chip trigger unit events can be also used to control the trace. The possible actions can be defined in

the Breakpoint.Set dialog. To control the trace unit an appropriate action has to be chosen for the Break.Set

command.

On-chip Breakpoints can stimulate the EVENT0 … 2 pins. These signals can be used as input events for the

Simple Trigger Unit (STU).

TrOnchip.CONVert Automatically converts range to single address

When enabled (default) the on-chip breakpoints are automatically converted from a range to a single

address if required. If the switch is off, the system will only accept breakpoints which exactly fit to the on-chip

breakpoint hardware.

b.s flags /TraceData ; Setup a filter for Data Trace (only

; with DTM option set to on)

b.s flags /TraceEnable ; Setup a filter for Program Trace

b.s main /TraceTrigger ; Set Watchpoint message to generate

; Trigger for the Trace analyzer

b.s main /BusTrigger ; Set Watchpoint message to generate a

; trigger pulse on the PodBus

b.s main /BusCount ; Set Watchpoint message to allow

; frequency counter feature

Format: TrOnchip.CONVert [OFF | ON]

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Renesas M32R-FPU Instrukcja Użytkownika Strona 22