42 lines
1.7 KiB
Markdown
42 lines
1.7 KiB
Markdown
# 使用MDK软件全仿真调试体验TencentOS Tiny
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有许多朋友想体验或者学习一下TencentOS Tiny内核,但是手上却没有合适的硬件,没关系!本文将教您如何使用MDK软件来仿真调试TencentOS Tiny内核。
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参考工程连接:https://github.com/Tencent/TencentOS-tiny/tree/master/board/MDK_Simulator_STM32F103RCT6/KEIL/hello_world
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我们首先在TencentOS Tiny官库上找到一个STM32工程,用MDK软件打开,修改printf 函数映射,如图所示:
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需要添加的代码如下:
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```
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#include "stdio.h"
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#define ITM_Port8(n) (*((volatile unsigned char *)(0xE0000000+4*n)))
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#define ITM_Port16(n) (*((volatile unsigned short*)(0xE0000000+4*n)))
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#define ITM_Port32(n) (*((volatile unsigned long *)(0xE0000000+4*n)))
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#define DEMCR (*((volatile unsigned long *)(0xE000EDFC)))
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#define TRCENA 0x01000000
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struct __FILE { int handle; /* Add whatever you need here */ };
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FILE __stdout;
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FILE __stdin;
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int fputc(int ch, FILE *f)
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{
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if (DEMCR & TRCENA)
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{
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while (ITM_Port32(0) == 0);
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ITM_Port8(0) = ch;
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}
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return(ch);
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}
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```
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添加完毕后,在MDK工程上打开option选项,选择debug选项,调试方式选择User Simulator,并修改调试参数,如下图:
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完成软件仿真参数配置后,就可以点击debug按钮开始调试了,打开调试窗口后,选择view->Serial windows->debug 就可以打开调试日志窗口了,如图,可以看到TencentOS Tiny内核的两个任务输出的日志信息。
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