求助STM32F107VC 串口1问题

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swustlx86| 助理工程师

楼主 | 2013-3-19 15:33 | 只看该作者回帖奖励

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STM32F107, 串口, USART, SAR, IO

使用STM32F103VC在MDK下仿真，能够得到正确的结果，MCU改成STM32F107VC之后，编译时没有问题，但是仿真的时候，提示“*** error 65: access violation at 0x40021000 : no 'read' permission”，

1、  初始化代码如下
void MyUsartInit(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
USART_InitTypeDef USART_InitStructure;

RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1|RCC_APB2Periph_GPIOA, ENABLE); //Ê¹ÄÜUSART1£¬GPIOAÊ±ÖÓ
  USART_DeInit(USART1);  //¸´Î»´®¿Ú1
  //USART1_TX PA.9
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9; //PA.9
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; //¸´ÓÃÍÆÍìÊä³ö
GPIO_Init(GPIOA, &GPIO_InitStructure); //³õÊ¼»¯PA9

//USART1_RX PA.10
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;//¸¡¿ÕÊäÈë
GPIO_Init(GPIOA, &GPIO_InitStructure);  //³õÊ¼»¯PA10

//USART ³õÊ¼»¯ÉèÖÃ

  USART_InitStructure.USART_BaudRate = 9600;//Ò»°ãÉèÖÃÎª9600;
  USART_InitStructure.USART_WordLength = USART_WordLength_8b;//×Ö³¤Îª8Î»Êý¾Ý¸ñÊ½
  USART_InitStructure.USART_StopBits = USART_StopBits_1;//Ò»¸öÍ£Ö¹Î»
  USART_InitStructure.USART_Parity = USART_Parity_No;//ÎÞÆæÅ¼Ð£ÑéÎ»
  USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;//ÎÞÓ²¼þÊý¾ÝÁ÷¿ØÖÆ
  USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx; //ÊÕ·¢Ä£Ê½

USART_Init(USART1, &USART_InitStructure); //³õÊ¼»¯´®¿Ú
USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);//¿ªÆôÖÐ¶Ï
USART_Cmd(USART1, ENABLE); //Ê¹ÄÜ´®¿Ú
}

2、相关设置如下