雅特力AT32A403开发板评测 02 CoreMark移植测试-编程知识

02-雅特力AT32A403A开发板 CoreMark移植评测

1. 软硬件平台

AT32A403A Board开发板
MDK-ARM Keil
CoreMark源码

2. CoreMark

CoreMark是一款用于评估CPU性能的基准测试程序，它包含了多种不同的计算任务，包括浮点数、整数、缓存、内存等方面的测试。CoreMark的测试结果通常被用来作为CPU性能的参考，它可以帮助开发人员和系统管理员评估不同处理器和系统的性能，比较不同处理器之间的性能差异，也可以用来测试处理器在多线程并行计算方面的性能。

官方网站 https://www.eembc.org/

Github仓库地址 https://github.com/eembc/coremark

其中 simple为接口移植文件，比较重要，重要的修改在这里面，下面的core_main.c、core_matrix.c等文件是测试的重要文件

在这里插入图片描述

3. CoreMark移植

在支持printf的工程上进行修改，搭建自己的工程模板，主要是修改路径，建立at32a403a_coremark_tempalte工程模板。
1. Application 主函数，应用层代码
2. BspDrivers 板级驱模块动文件
3. Drivers 底层驱动库文件 Firmware Library
4. Project 工程文件
添加CoreMark源代码，其中core_portme.c core_portme.h为需要修改的文件（sample文件）
打开工程，添加文件

修改core_portme.c文件的内容

修改部分宏定义

其中ITERATIONS数值视情况而定。

如果出现ERROR! Must execute for at least 10 secs for a valid result!,那么需要将此数值变大使程序运行时间至少在10秒以上。

#define SysTick_Counter_Disable ((uint32_t)0xFFFFFFFE)#define SysTick_Counter_Enable ((uint32_t)0x00000001)#define SysTick_Counter_Clear ((uint32_t)0x00000000)__IO uint32_t Ticks;#define ITERATIONS 5000;

屏蔽部分代码

//#define NSECS_PER_SEC              CLOCKS_PER_SEC
//#define CORETIMETYPE               clock_t
//#define GETMYTIME(_t)              (*_t = clock())
//#define MYTIMEDIFF(fin, ini)       ((fin) - (ini))
//#define TIMER_RES_DIVIDER          1
//#define SAMPLE_TIME_IMPLEMENTATION 1
//#define EE_TICKS_PER_SEC           (NSECS_PER_SEC / TIMER_RES_DIVIDER)/** Define Host specific (POSIX), or target specific global time variables. */
//static CORETIMETYPE start_time_val, stop_time_val;//changed

添加start_time，stop_time，get_time函数主体，主要是用于时间的计时

__IO uint32_t Ticks;/* Function : start_timeThis function will be called right before starting the timed portion ofthe benchmark.Implementation may be capturing a system timer (as implemented in theexample code) or zeroing some system parameters - e.g. setting the cpu clockscycles to 0.
*/
void start_time(void)//changed
{//GETMYTIME(&start_time_val);Ticks++;SysTick_Config(SystemCoreClock / 1000);//1ms中断
}
/* Function : stop_timeThis function will be called right after ending the timed portion of thebenchmark.Implementation may be capturing a system timer (as implemented in theexample code) or other system parameters - e.g. reading the current value ofcpu cycles counter.
*/
void stop_time(void)//changed
{//GETMYTIME(&stop_time_val);/* Stop the Timer and get the encoding time */SysTick->CTRL &=SysTick_Counter_Disable;/* Clear the SysTick Counter */SysTick->VAL = SysTick_Counter_Clear;
}
/* Function : get_timeReturn an abstract "ticks" number that signifies time on the system.Actual value returned may be cpu cycles, milliseconds or any othervalue, as long as it can be converted to seconds by <time_in_secs>. Thismethodology is taken to accomodate any hardware or simulated platform. Thesample implementation returns millisecs by default, and the resolution iscontrolled by <TIMER_RES_DIVIDER>
*/
CORE_TICKS get_time(void)//changed
{CORE_TICKS elapsed=(CORE_TICKS) Ticks;//(MYTIMEDIFF(stop_time_val, start_time_val));return elapsed;
}

需要在中断服务函数中添加下面代码

extern __IO uint32_t Ticks;
void SysTick_Handler(void)
{   Ticks++; 
}

在portable_init函数中执行芯片初始化功能（如系统时钟，串口配置）

/* Function : portable_initTarget specific initialization codeTest for some common mistakes.
*/
void portable_init(core_portable *p, int *argc, char *argv[])
{system_clock_config();delay_init();uart_print_init(115200);printf("at32a403a_board hardware_init [ok] \r\n");printf("at_start_a403a board coremark testing 2024-1-29\r\n");if (sizeof(ee_ptr_int) != sizeof(ee_u8 *)){ee_printf("ERROR! Please define ee_ptr_int to a type that holds a ""pointer!\n");}if (sizeof(ee_u32) != 4){ee_printf("ERROR! Please define ee_u32 to a 32b unsigned type!\n");}p->portable_id = 1;
}

总体移植部分结束了，可能存在部分宏定义的修改，我也是参考别人的案例写的，可能会存在一些问题，需要自行判断

core_portme.c完整代码如下：

/*
Copyright 2018 Embedded Microprocessor Benchmark Consortium (EEMBC)Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License athttp://www.apache.org/licenses/LICENSE-2.0Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.Original Author: Shay Gal-on
*/#include <stdio.h>
#include <stdlib.h>
#include "coremark.h"
#include "main.h"#define SysTick_Counter_Disable ((uint32_t)0xFFFFFFFE)//changed
#define SysTick_Counter_Enable ((uint32_t)0x00000001)//changed
#define SysTick_Counter_Clear ((uint32_t)0x00000000)//changed
__IO uint32_t Ticks;//changed//define ITERATIONS
#define ITERATIONS 5000;//changed#if VALIDATION_RUN
volatile ee_s32 seed1_volatile = 0x3415;
volatile ee_s32 seed2_volatile = 0x3415;
volatile ee_s32 seed3_volatile = 0x66;
#endif
#if PERFORMANCE_RUN
volatile ee_s32 seed1_volatile = 0x0;
volatile ee_s32 seed2_volatile = 0x0;
volatile ee_s32 seed3_volatile = 0x66;
#endif
#if PROFILE_RUN
volatile ee_s32 seed1_volatile = 0x8;
volatile ee_s32 seed2_volatile = 0x8;
volatile ee_s32 seed3_volatile = 0x8;
#endif
volatile ee_s32 seed4_volatile = ITERATIONS;
volatile ee_s32 seed5_volatile = 0;void assert_failed(uint8_t* file, uint32_t line)
{ /* User can add his own implementation to report the file name and line number,ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) *//* Infinite loop */while (1){}
}/* Porting : Timing functionsHow to capture time and convert to seconds must be ported to whatever issupported by the platform. e.g. Read value from on board RTC, read value fromcpu clock cycles performance counter etc. Sample implementation for standardtime.h and windows.h definitions included.
*/
/* Define : TIMER_RES_DIVIDERDivider to trade off timer resolution and total time that can bemeasured.Use lower values to increase resolution, but make sure that overflowdoes not occur. If there are issues with the return value overflowing,increase this value.*///changed
//#define NSECS_PER_SEC              CLOCKS_PER_SEC
//#define CORETIMETYPE               clock_t
//#define GETMYTIME(_t)              (*_t = clock())
//#define MYTIMEDIFF(fin, ini)       ((fin) - (ini))
//#define TIMER_RES_DIVIDER          1
//#define SAMPLE_TIME_IMPLEMENTATION 1
//#define EE_TICKS_PER_SEC           (NSECS_PER_SEC / TIMER_RES_DIVIDER)/** Define Host specific (POSIX), or target specific global time variables. */
//static CORETIMETYPE start_time_val, stop_time_val;//changed
#define EE_TICKS_PER_SEC 1000.0//changed
/* Function : start_timeThis function will be called right before starting the timed portion ofthe benchmark.Implementation may be capturing a system timer (as implemented in theexample code) or zeroing some system parameters - e.g. setting the cpu clockscycles to 0.
*/
void start_time(void)//changed
{//GETMYTIME(&start_time_val);Ticks++;SysTick_Config(SystemCoreClock / 1000);//1ms中断
}
/* Function : stop_timeThis function will be called right after ending the timed portion of thebenchmark.Implementation may be capturing a system timer (as implemented in theexample code) or other system parameters - e.g. reading the current value ofcpu cycles counter.
*/
void stop_time(void)//changed
{//GETMYTIME(&stop_time_val);/* Stop the Timer and get the encoding time */SysTick->CTRL &=SysTick_Counter_Disable;/* Clear the SysTick Counter */SysTick->VAL = SysTick_Counter_Clear;
}
/* Function : get_timeReturn an abstract "ticks" number that signifies time on the system.Actual value returned may be cpu cycles, milliseconds or any othervalue, as long as it can be converted to seconds by <time_in_secs>. Thismethodology is taken to accomodate any hardware or simulated platform. Thesample implementation returns millisecs by default, and the resolution iscontrolled by <TIMER_RES_DIVIDER>
*/
CORE_TICKS get_time(void)//changed
{CORE_TICKS elapsed=(CORE_TICKS) Ticks;//(MYTIMEDIFF(stop_time_val, start_time_val));return elapsed;
}
/* Function : time_in_secsConvert the value returned by get_time to seconds.The <secs_ret> type is used to accomodate systems with no support forfloating point. Default implementation implemented by the EE_TICKS_PER_SECmacro above.
*/
secs_ret
time_in_secs(CORE_TICKS ticks)
{secs_ret retval = ((secs_ret)ticks) / (secs_ret)EE_TICKS_PER_SEC;return retval;
}ee_u32 default_num_contexts = 1;/* Function : portable_initTarget specific initialization codeTest for some common mistakes.
*/
void portable_init(core_portable *p, int *argc, char *argv[])
{system_clock_config();delay_init();uart_print_init(115200);printf("at32a403a_board hardware_init [ok] \r\n");printf("at_start_a403a board coremark testing 2024-1-29\r\n");if (sizeof(ee_ptr_int) != sizeof(ee_u8 *)){ee_printf("ERROR! Please define ee_ptr_int to a type that holds a ""pointer!\n");}if (sizeof(ee_u32) != 4){ee_printf("ERROR! Please define ee_u32 to a 32b unsigned type!\n");}p->portable_id = 1;
}
/* Function : portable_finiTarget specific final code
*/
void
portable_fini(core_portable *p)
{p->portable_id = 0;
}