Renesas User System Interface Board HS7047ECH61H Uživatelský manuál stáhnout pdf (Strana 136)

3.8.3 Specifying Trace Acquisition Conditions

The capacity of the trace buffer is limited. When the buffer becomes full, the oldest trace information is

overwritten. Setting the trace acquisition condition allows acquisition of useful trace information and effective

use of the trace buffer.

There are the following types of trace acquisition conditions.

Free trace: Acquires trace information continuously from the start of the user program execution to the

occurrence of a break (only when no trace acquisition condition is set).

Sequential trace stop: Specifies the order of trace acquisition conditions to be satisfied and stops trace

acquisition when all of the conditions are satisfied. It is possible to set up to seven pass points and one reset point.

No break will occur even when the trace acquisition stops.

Trace stop due to trace buffer overflow: Stops trace acquisition when the trace buffer in the emulator station

overflows. No break will occur even when the trace acquisition stops.

Trace stop: Stops trace acquisition when the specified conditions are satisfied. In this mode, trace acquisition

stops without stopping the user program execution. Up to 12 points can be set independently as trace stop

conditions. No break will occur even when the trace acquisition stops.

Address range trace: Acquires trace information of instructions or operands accessed in the range (subroutine)

between the start and end addresses. Note that, however, when the selected subroutine calls another subroutine,

no trace information will be acquired from the called subroutine. Up to 12 points can be set independently as the

address ranges.

Conditional trace: Only acquires trace information from the points where the specified conditions are satisfied.

Up to 12 points can be set independently as the conditions.

Address range conditional trace: Accesses instructions or operands in the range (subroutine) between the start

and end addresses and only acquires trace information in the bus cycles that satisfy the conditions. This mode is

a combination of address range trace and conditional trace. Up to six points can be set independently as the

address ranges with conditions.

Point to Point trace: Acquires trace information from the satisfaction of the address condition set as a start

condition to that of the address condition set as an end condition.

Execution time measurement: Measures execution time between two points by using the trace acquisition

conditions.

Trigger output: Outputs a pulse from trigger pins when the specified conditions are satisfied.

The trace acquisition condition is set in the [Trace Acquisition] dialog box that is displayed by selecting

[Acquisition…] from the popup menu.

The [Trace Acquisition Properties] dialog box has the pages [Condition] and [Other].

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Renesas User System Interface Board HS7047ECH61H Uživatelský manuál Strana 136