Thomas Kirchner / Mbed 2 deprecated Nucleo_vs_Arduino_Speed_Test

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Dependencies:   ST_401_84MHZ mbed

benchmark.cpp@0:525baf7de2db, 2014-04-28 (annotated)

Committer:
kirchnet
Date:
Mon Apr 28 00:38:52 2014 +0000
Revision:
0:525baf7de2db
Whetstone performance benchmark to compare my new Nucleo STM32 F401RE board to the Arduino. While my Arduino Leonardo knockoff running at 16 Mhz runs through the 1,000 loops in a mere 82 secs for 1.21 MIPS the Nucleo takes 30 secs and yields 3.3MIPS.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
kirchnet 0:525baf7de2db 1 #include "benchmark.h"
kirchnet 0:525baf7de2db 2 #include "stm32f4xx_hal.h"
kirchnet 0:525baf7de2db 3 #include "ST_F401_84MHZ.h"
kirchnet 0:525baf7de2db 4
kirchnet 0:525baf7de2db 5 //The program will run first at the clock speed at which you have set your board
kirchnet 0:525baf7de2db 6 //and then switch to 84 MHz. Presumably your board is set to 84 MHz already.
kirchnet 0:525baf7de2db 7
kirchnet 0:525baf7de2db 8 main(){
kirchnet 0:525baf7de2db 9 whetstone(0);
kirchnet 0:525baf7de2db 10 SystemClock_Config_84MHz_internal(); // Now speed up to 84 MHz
kirchnet 0:525baf7de2db 11 whetstone(84);
kirchnet 0:525baf7de2db 12 //linpack();
kirchnet 0:525baf7de2db 13 //dhrystone();
kirchnet 0:525baf7de2db 14 }
kirchnet 0:525baf7de2db 15
kirchnet 0:525baf7de2db 16