微波EDA网，见证研发工程师的成长！
首页 > 硬件设计 > 嵌入式设计 > STM32F10x 学习笔记6（USART实现串口通讯 2）

STM32F10x 学习笔记6（USART实现串口通讯 2）

时间：11-20 来源：互联网 点击：

  1. TING;
  2. GPIO_InitStructure.GPIO_Pin=GPIO_Pin_10;
  3. GPIO_Init(GPIOA,&GPIO_InitStructure);
  5. USART_InitStructure.USART_BaudRate=9600;
  6. USART_InitStructure.USART_WordLength=USART_WordLength_8b;
  7. USART_InitStructure.USART_StopBits=USART_StopBits_1;
  8. USART_InitStructure.USART_Parity=USART_Parity_No;
  9. USART_InitStructure.USART_HardwareFlowControl=USART_HardwareFlowControl_None;
  10. USART_InitStructure.USART_Mode=USART_Mode_Rx|USART_Mode_Tx;
  11. USART_Init(USART1,&USART_InitStructure);
  13. USART_Cmd(USART1,ENABLE);
  15. NVIC_InitStructure.NVIC_IRQChannel=USART1_IRQn;
  16. NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority=0;
  17. NVIC_InitStructure.NVIC_IRQChannelSubPriority=0;
  18. NVIC_InitStructure.NVIC_IRQChannelCmd=ENABLE;
  19. NVIC_Init(&NVIC_InitStructure);
  20. }
  22. voidUSART2_Init(void)
  23. {
  24. GPIO_InitTypeDefGPIO_InitStructure;
  25. USART_InitTypeDefUSART_InitStructure;
  26. NVIC_InitTypeDefNVIC_InitStructure;
  28. RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOD|RCC_APB2Periph_AFIO,ENABLE);
  30. /*ConfigureUSARTTxasalternatefunctionpush-pull*/
  31. GPIO_InitStructure.GPIO_Mode=GPIO_Mode_AF_PP;
  32. GPIO_InitStructure.GPIO_Pin=GPIO_Pin_5;
  33. GPIO_InitStructure.GPIO_Speed=GPIO_Speed_50MHz;
  34. GPIO_Init(GPIOD,&GPIO_InitStructure);
  36. /*ConfigureUSARTRxasinputfloating*/
  37. GPIO_InitStructure.GPIO_Mode=GPIO_Mode_IN_FLOATING;
  38. GPIO_InitStructure.GPIO_Pin=GPIO_Pin_6;
  39. GPIO_Init(GPIOD,&GPIO_InitStructure);
  41. GPIO_PinRemapConfig(GPIO_Remap_USART2,ENABLE);
  42. RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART2,ENABLE);
  44. USART_InitStructure.USART_BaudRate=9600;
  45. USART_InitStructure.USART_WordLength=USART_WordLength_8b;
  46. USART_InitStructure.USART_StopBits=USART_StopBits_1;
  47. USART_InitStructure.USART_Parity=USART_Parity_No;
  48. USART_InitStructure.USART_HardwareFlowControl=USART_HardwareFlowControl_None;
  49. USART_InitStructure.USART_Mode=USART_Mode_Rx|USART_Mode_Tx;
  50. USART_Init(USART2,&USART_InitStructure);
  52. USART_Cmd(USART2,ENABLE);
  54. NVIC_InitStructure.NVIC_IRQChannel=USART2_IRQn;
  55. NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority=1;
  56. NVIC_InitStructure.NVIC_IRQChannelSubPriority=1;
  57. NVIC_InitStructure.NVIC_IRQChannelCmd=ENABLE;
  58. NVIC_Init(&NVIC_InitStructure);
  59. }
  62. intmain(void)
  63. {
  64. unsignedcharc;
  65. unsignedcharerr;
  67. USART1_Init();
  68. USART2_Init();
  69. COMBufferInit();
  70. USART_ITConfig(USART1,USART_IT_RXNE,ENABLE);
  71. USART_ITConfig(USART2,USART_IT_RXNE,ENABLE);
  73. UART_PutStrB(COM1,"HelloWorld!\n");
  74. for(;;)
  75. {
  76. c=COMGetCharB(COM1,&err);
  77. if(err==COM_NO_ERR)
  78. {
  79. COMPutCharB(COM1,c);
  80. }
  81. }
  82. }


上一页 1 2 3 4 5 下一页
上一篇：ARM Cortex-M3 学习笔记(5)
下一篇：如何成功入侵 Linux 服务器

STM32F10xUSAR串口通 相关文章：

栏目分类
热门文章

Copyright © 2017-2020 微波EDA网 版权所有

网站地图

Top