参数资料
型号: AT90ICEPRO
厂商: Atmel
文件页数: 21/35页
文件大小: 0K
描述: AVR GEN PURP IN CIRCUIT EMULATOR
标准包装: 1

Section 10
Trace Buffer
The AVR AT90ICEPRO has a 32K x 96-bit trace buffer which stores information about
program execution for every clock cycle. When the emulator is stopped, this trace buffer
can be examined to extract information about the history of the emulated program. The
details on which data are stored and how to retrieve them are described in the AVR Stu-
dio User Guide. When the trace buffer is full, it will wrap around and start overwriting the
oldest entries.
The trace buffer can be turned on or off at any program line. This makes it possible to
skip tracing delay loops and other subroutines which would otherwise fill the trace mem-
ory with unnecessary data. The trace buffer is inactive by default. To trace an entire pro-
gram, a “Trace on” marker should be placed on the first line of the program.
AT90ICEPRO User Guide
10-1
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