本帖最后由 DYWEWHY 于 2017-4-6 18:34 编辑

**JLink Warning: CPU could not be halted
***JLink Error: Can not read register 15 (R15) while CPU is running
***JLink Error: Can not read register 16 (XPSR) while CPU is running
***JLink Error: Can not read register 0 (R0) while CPU is running
***JLink Error: Can not read register 1 (R1) while CPU is running
***JLink Error: Can not read register 2 (R2) while CPU is running
***JLink Error: Can not read register 3 (R3) while CPU is running
***JLink Error: Can not read register 4 (R4) while CPU is running
***JLink Error: Can not read register 5 (R5) while CPU is running
***JLink Error: Can not read register 6 (R6) while CPU is running
***JLink Error: Can not read register 7 (R7) while CPU is running
***JLink Error: Can not read register 8 (R8) while CPU is running
***JLink Error: Can not read register 9 (R9) while CPU is running
***JLink Error: Can not read register 10 (R10) while CPU is running
***JLink Error: Can not read register 11 (R11) while CPU is running
***JLink Error: Can not read register 12 (R12) while CPU is running
***JLink Error: Can not read register 13 (R13) while CPU is running
***JLink Error: Can not read register 14 (R14) while CPU is running
***JLink Error: Can not read register 15 (R15) while CPU is running
***JLink Error: Can not read register 16 (XPSR) while CPU is running
***JLink Error: Can not read register 17 (MSP) while CPU is running
***JLink Error: Can not read register 18 (PSP) while CPU is running
***JLink Error: Can not read register 20 (CFBP) while CPU is running


运行《ALIENTEK MINISTM32 实验2 按键实验》，使用JLINK进行调试，按下KEY0，出现以上错误，明显是JTAG没有禁用的提示。
经检查没有启动AFIO时钟，遂加之。编译运行，仍然是上述结果。但是程序中已经禁用JTAG，启用SWJ。
我就不懂了，这是怎么回事呢？
程序可以正常运行，只是KEY0按键一按就出现上述提示。KEY0接口为PC5,与JTAG没什么关系啊，反而跟JTAG有关系的PA15可以正常使用。

附上KEY初始化代码：
void KEY_Init(void)
{
        
        GPIO_InitTypeDef GPIO_InitStructure;

         RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA|RCC_APB2Periph_GPIOC|RCC_APB2Periph_AFIO,ENABLE);//使能PORTA,PORTC时钟

        GPIO_PinRemapConfig(GPIO_Remap_SWJ_JTAGDisable, ENABLE);//关闭jtag，使能SWD，可以用SWD模式调试
        
        GPIO_InitStructure.GPIO_Pin  = GPIO_Pin_15;//PA15
        GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU; //设置成上拉输入
         GPIO_Init(GPIOA, &GPIO_InitStructure);//初始化GPIOA15
        
        GPIO_InitStructure.GPIO_Pin  = GPIO_Pin_5;//PC5
        GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU; //设置成上拉输入
         GPIO_Init(GPIOC, &GPIO_InitStructure);//初始化GPIOC5

        GPIO_InitStructure.GPIO_Pin  = GPIO_Pin_0;//PA0
        GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPD; //PA0设置成输入，默认下拉         
        GPIO_Init(GPIOA, &GPIO_InitStructure);//初始化GPIOA.0
        
}


如果初始化代码没错，哪里错了呢？