请问 stm32f10x_dbgmcu.h 头文件的作用什么？

zhengbingyan · 发表于 2014-5-22 14:24:52

打开里面的内容如下：

#define DBGMCU_SLEEP ((uint32_t)0x00000001)
#define DBGMCU_STOP ((uint32_t)0x00000002)
#define DBGMCU_STANDBY ((uint32_t)0x00000004)
#define DBGMCU_IWDG_STOP ((uint32_t)0x00000100)
#define DBGMCU_WWDG_STOP ((uint32_t)0x00000200)
#define DBGMCU_TIM1_STOP ((uint32_t)0x00000400)
#define DBGMCU_TIM2_STOP ((uint32_t)0x00000800)
#define DBGMCU_TIM3_STOP ((uint32_t)0x00001000)
#define DBGMCU_TIM4_STOP ((uint32_t)0x00002000)
#define DBGMCU_CAN1_STOP ((uint32_t)0x00004000)
#define DBGMCU_I2C1_SMBUS_TIMEOUT ((uint32_t)0x00008000)
#define DBGMCU_I2C2_SMBUS_TIMEOUT ((uint32_t)0x00010000)
#define DBGMCU_TIM8_STOP ((uint32_t)0x00020000)
#define DBGMCU_TIM5_STOP ((uint32_t)0x00040000)
#define DBGMCU_TIM6_STOP ((uint32_t)0x00080000)
#define DBGMCU_TIM7_STOP ((uint32_t)0x00100000)
#define DBGMCU_CAN2_STOP ((uint32_t)0x00200000)
#define DBGMCU_TIM15_STOP ((uint32_t)0x00400000)
#define DBGMCU_TIM16_STOP ((uint32_t)0x00800000)
#define DBGMCU_TIM17_STOP ((uint32_t)0x01000000)
#define DBGMCU_TIM12_STOP ((uint32_t)0x02000000)
#define DBGMCU_TIM13_STOP ((uint32_t)0x04000000)
#define DBGMCU_TIM14_STOP ((uint32_t)0x08000000)
#define DBGMCU_TIM9_STOP ((uint32_t)0x10000000)
#define DBGMCU_TIM10_STOP ((uint32_t)0x20000000)
#define DBGMCU_TIM11_STOP ((uint32_t)0x40000000)

是停止相关的外设吗？
哪位知道的能否解释一下？

shihantu · 发表于 2014-5-22 14:24:53

在调试模式下,内核被调试器停止时,相关外设是否同时停止.

比如定时器输出,如果是连接了电机什么的时候,调试到某个地方断点了,默认定时器会继续跑,这时电机电流可能会失控烧电路,设置了对应的位后,定时器会停止,输出会固定在CCMR设置的电平.

对于串行通信,内核停止并且设置了对应的位,数据就有可能发了一半停下来,等内核跑了再继续发,这样数据时序就不对了,但这种情况对于分析内核与数据间的时序是有帮助的.