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楼主 |
发表于 2010-2-27 00:52:33
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刚到了1768的小板,第一个任务就是超频,自己来做!
测试结果:
CCLK FLASHCFG IAR Performance(Loops/sec)
141.12MHz 6 clocks 8454
141.12Mhz 5 clocks 8466
72Mhz 5 clocks 4311
72Mhz 4 clocks 4318
结果发现FLASH等待周期数似乎影响不大?
确认 测试代码段在FLASH里: _CalcPrimes 0x0000076d 0x5c Code Lc OS_PerformanceTest.o [1]
TEST METHOD:
File : OS_PerformanceTest.c (medium optimize)
Purpose : Performance test program
It checks the performance of the entire system, outputing one
result value per second. Higher values are better.
The program computes the first 1000 prime numbers in a loop.
The value output is the number of times this could be performed
in a second.
Version 2.0, July-14 2008
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Reference values - RAM configuration:
ARM926-EJS fully chached, 201.0MHz, IAR EWARM V5.20, Thumb Mode => 11834 Loops/sec => 58.9 Loops/sec/MHz
ARM926-EJS fully chached, 201.0MHz, IAR EWARM V5.20, ARM Mode => 12497 Loops/sec => 62.2 Loops/sec/MHz
ARM7-TDMI 47.9MHz, IAR EWARM V5.20, Thumb Mode => 2656 Loops/sec => 55.4 Loops/sec/MHz
ARM7-TDMI 47.9MHz, IAR EWARM V5.20, ARM Mode => 2646 Loops/sec => 55.2 Loops/sec/MHz |
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