MDK硬體除錯_在Debug printf Viewer視窗顯示列印資訊_ITM
阿新 • • 發佈：2019-02-15
#include <stdio.h>
#define ITM_Port8(n) (*((volatile unsigned char *)(0xE0000000+4*n)))
#define ITM_Port16(n) (*((volatile unsigned short*)(0xE0000000+4*n)))
#define ITM_Port32(n) (*((volatile unsigned long *)(0xE0000000+4*n)))
#define DEMCR (*((volatile unsigned long *)(0xE000EDFC)))
#define TRCENA 0x01000000
struct __FILE { int handle; /* Add whatever you need here */ };
FILE __stdout;
FILE __stdin;
int fputc(int ch, FILE *f)
{
if (DEMCR & TRCENA)
{
while (ITM_Port32(0) == 0);
ITM_Port8(0) = ch;
}
return(ch);
}
2、建立一個.ini的檔案，這個檔案不要新增到工程目錄中，複製以下內容進去
/******************************************************************************/
/* STM32DBG.INI: STM32 Debugger Initialization File */
/******************************************************************************/
// <<< Use Configuration Wizard in Context Menu >>> //
/******************************************************************************/
/* This file is part of the uVision/ARM development tools. */
/* Copyright (c) 2005-2007 Keil Software. All rights reserved. */
/* This software may only be used under the terms of a valid, current, */
/* end user licence from KEIL for a compatible version of KEIL software */
/* development tools. Nothing else gives you the right to use this software. */
/******************************************************************************/
FUNC void DebugSetup (void) {
// <h> Debug MCU Configuration
// <o1.0> DBG_SLEEP <i> Debug Sleep Mode
// <o1.1> DBG_STOP <i> Debug Stop Mode
// <o1.2> DBG_STANDBY <i> Debug Standby Mode
// <o1.5> TRACE_IOEN <i> Trace I/O Enable
// <o1.6..7> TRACE_MODE <i> Trace Mode
// <0=> Asynchronous
// <1=> Synchronous: TRACEDATA Size 1
// <2=> Synchronous: TRACEDATA Size 2
// <3=> Synchronous: TRACEDATA Size 4
// <o1.8> DBG_IWDG_STOP <i> Independant Watchdog Stopped when Core is halted
// <o1.9> DBG_WWDG_STOP <i> Window Watchdog Stopped when Core is halted
// <o1.10> DBG_TIM1_STOP <i> Timer 1 Stopped when Core is halted
// <o1.11> DBG_TIM2_STOP <i> Timer 2 Stopped when Core is halted
// <o1.12> DBG_TIM3_STOP <i> Timer 3 Stopped when Core is halted
// <o1.13> DBG_TIM4_STOP <i> Timer 4 Stopped when Core is halted
// <o1.14> DBG_CAN_STOP <i> CAN Stopped when Core is halted
// </h>
_WDWORD(0xE0042004, 0x00000027); // DBGMCU_CR
_WDWORD(0xE000ED08, 0x20000000); // Setup Vector Table Offset Register
}
DebugSetup(); // Debugger Setup
3、ITM機制需要使用SWD模式除錯，但同時必須連線SWO引腳，所以在模擬的時候最好用JTAG線與開發板連線；
#define ITM_Port8(n) (*((volatile unsigned char *)(0xE0000000+4*n)))
#define ITM_Port16(n) (*((volatile unsigned short*)(0xE0000000+4*n)))
#define ITM_Port32(n) (*((volatile unsigned long *)(0xE0000000+4*n)))
#define DEMCR (*((volatile unsigned long *)(0xE000EDFC)))
#define TRCENA 0x01000000
struct __FILE { int handle; /* Add whatever you need here */ };
FILE __stdout;
FILE __stdin;
int fputc(int ch, FILE *f)
{
if (DEMCR & TRCENA)
{
while (ITM_Port32(0) == 0);
ITM_Port8(0) = ch;
}
return(ch);
}
2、建立一個.ini的檔案，這個檔案不要新增到工程目錄中，複製以下內容進去
/******************************************************************************/
/* STM32DBG.INI: STM32 Debugger Initialization File */
/******************************************************************************/
// <<< Use Configuration Wizard in Context Menu >>> //
/******************************************************************************/
/* This file is part of the uVision/ARM development tools. */
/* Copyright (c) 2005-2007 Keil Software. All rights reserved. */
/* This software may only be used under the terms of a valid, current, */
/* end user licence from KEIL for a compatible version of KEIL software */
/* development tools. Nothing else gives you the right to use this software. */
/******************************************************************************/
FUNC void DebugSetup (void) {
// <h> Debug MCU Configuration
// <o1.0> DBG_SLEEP <i> Debug Sleep Mode
// <o1.1> DBG_STOP <i> Debug Stop Mode
// <o1.2> DBG_STANDBY <i> Debug Standby Mode
// <o1.5> TRACE_IOEN <i> Trace I/O Enable
// <o1.6..7> TRACE_MODE <i> Trace Mode
// <0=> Asynchronous
// <1=> Synchronous: TRACEDATA Size 1
// <2=> Synchronous: TRACEDATA Size 2
// <3=> Synchronous: TRACEDATA Size 4
// <o1.8> DBG_IWDG_STOP <i> Independant Watchdog Stopped when Core is halted
// <o1.9> DBG_WWDG_STOP <i> Window Watchdog Stopped when Core is halted
// <o1.10> DBG_TIM1_STOP <i> Timer 1 Stopped when Core is halted
// <o1.11> DBG_TIM2_STOP <i> Timer 2 Stopped when Core is halted
// <o1.12> DBG_TIM3_STOP <i> Timer 3 Stopped when Core is halted
// <o1.13> DBG_TIM4_STOP <i> Timer 4 Stopped when Core is halted
// <o1.14> DBG_CAN_STOP <i> CAN Stopped when Core is halted
// </h>
_WDWORD(0xE0042004, 0x00000027); // DBGMCU_CR
_WDWORD(0xE000ED08, 0x20000000); // Setup Vector Table Offset Register
}
DebugSetup(); // Debugger Setup
3、ITM機制需要使用SWD模式除錯，但同時必須連線SWO引腳，所以在模擬的時候最好用JTAG線與開發板連線；