/**
* @brief Configure the USART Device
* @param None
* @retval None
*/
static void USART_Configuration(void)
{
USART_InitTypeDef USART_InitStructure;
GPIO_InitTypeDef GPIO_InitStructure;
NVIC_InitTypeDef NVIC_InitStructure;
/* Enable GPIOA and DMA clock */
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOA , ENABLE);
/* Enable USART1 APB clock */
RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1, ENABLE);
/* Configure the HSI as USART clock */
RCC_USARTCLKConfig(RCC_USART1CLK_HSI);
/* USART1 Pins configuration **************************************************/
GPIO_DeInit(GPIOA);
/* Connect pin to Periph */
GPIO_PinAFConfig(GPIOA, GPIO_PinSource9, GPIO_AF_1);
GPIO_PinAFConfig(GPIOA, GPIO_PinSource10, GPIO_AF_1);
/* Configure pins as AF pushpull */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9 | GPIO_Pin_10;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_Init(GPIOA, &GPIO_InitStructure);
/* USARTx configured as follow:
- BaudRate = 115200 baud
- Word Length = 8 Bits
- Stop Bit = 1 Stop Bit
- Parity = No Parity
- Hardware flow control disabled (RTS and CTS signals)
- Receive and transmit enabled
*/
USART_DeInit(USART1);
USART_InitStructure.USART_BaudRate = 115200;
USART_InitStructure.USART_WordLength = USART_WordLength_8b;
USART_InitStructure.USART_StopBits = USART_StopBits_1;
USART_InitStructure.USART_Parity = USART_Parity_No;
USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
USART_Init(USART1, &USART_InitStructure);
/* USART1 IRQ Channel configuration */
NVIC_InitStructure.NVIC_IRQChannel = USART1_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPriority = 0x01;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
}
void U_USART1::USARTInit(uint32_t baud) {
USART_InitTypeDef USART_InitStructure;
//配置 USART时钟和分频
RCC_USARTCLKConfig(RCC_USART1CLK_PCLK);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1, ENABLE);
//全双工 无校验 停止位1位 8字节
USART_InitStructure.USART_BaudRate = baud;
USART_InitStructure.USART_HardwareFlowControl =
USART_HardwareFlowControl_None;
USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
USART_InitStructure.USART_Parity = USART_Parity_No;
USART_InitStructure.USART_StopBits = USART_StopBits_1;
USART_InitStructure.USART_WordLength = USART_WordLength_8b;
USART_Init(USART1, &USART_InitStructure);
}
/**
* @brief Configure the USART Device
* @param None
* @retval None
*/
static void USART_Configuration(void)
{
USART_InitPara USART_InitStructure;
/* Configure the HSI as USART clock */
RCC_USARTCLKConfig(RCC_USART1CLK_HSI);
/* USARTx configured as follow:
- BaudRate = 115200 baud
- Word Length = 8 Bits
- Stop Bit = 1 Stop Bit
- Parity = No Parity
- Hardware flow control disabled (RTS and CTS signals)
- Receive and transmit enabled
*/
USART_DeInit(USART1);
USART_InitStructure.USART_BRR = 115200;
USART_InitStructure.USART_WL = USART_WL_8B;
USART_InitStructure.USART_STBits = USART_STBITS_1;
USART_InitStructure.USART_Parity = USART_PARITY_RESET;
USART_InitStructure.USART_HardwareFlowControl = USART_HARDWAREFLOWCONTROL_NONE;
USART_InitStructure.USART_RxorTx = USART_RXORTX_RX | USART_RXORTX_TX;
GD_EVAL_COMInit(&USART_InitStructure);
/* USART Disable */
USART_Enable(USART1, DISABLE);
/* USART1 IRQ Channel configuration */
{
NVIC_InitPara NVIC_InitStructure;
/* Enable the USARTx Interrupt */
NVIC_InitStructure.NVIC_IRQ = USART1_IRQn;
NVIC_InitStructure.NVIC_IRQPreemptPriority = 0;
NVIC_InitStructure.NVIC_IRQSubPriority = 0;
NVIC_InitStructure.NVIC_IRQEnable = ENABLE;
NVIC_Init(&NVIC_InitStructure);
}
}
void RCC_Config(void)
{
RCC_DeInit();
RCC_HSEConfig(RCC_HSE_ON); //Включим внешний генератор
while (SUCCESS != RCC_WaitForHSEStartUp()); //Подождем запуска генератора
RCC_PLLCmd(DISABLE);
RCC_PLLConfig(RCC_PLLSource_PREDIV1,RCC_PLLMul_12); //Вход ПЛЛ внешний генератор умножим на 12
RCC_PLLCmd(ENABLE);
RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK); //Системное тактирование от ПЛЛ
RCC_HCLKConfig(RCC_SYSCLK_Div1); //Тактирование AHB с делением 1
RCC_PCLKConfig(RCC_HCLK_Div8); //Тактирование переферии с делением 8
RCC_ADCCLKConfig(RCC_ADCCLK_PCLK_Div2); //Тактирование АЦП
RCC_I2CCLKConfig(RCC_I2C1CLK_SYSCLK); //Тактируем шину I2C от системного тактирования
RCC_USARTCLKConfig(RCC_USART1CLK_PCLK); //Тактируем UART от шини переферии
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOA + RCC_AHBPeriph_GPIOB,ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_SPI1 + RCC_APB2Periph_USART1 + RCC_APB2Periph_TIM1 + RCC_APB2Periph_TIM15, ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_SPI1, ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1, ENABLE);
RCC_APB1PeriphClockCmd(RCC_APB1Periph_I2C1, ENABLE);
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM14, ENABLE);
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3, ENABLE);
#ifdef MCO_ENABLE
GPIOA_Struct_init.GPIO_Pin = GPIO_Pin_8;
GPIOA_Struct_init.GPIO_Mode = GPIO_Mode_AF;
GPIOA_Struct_init.GPIO_Speed = GPIO_Speed_Level_2;
GPIOA_Struct_init.GPIO_OType = GPIO_OType_PP;
GPIO_Init(GPIOA,&GPIOA_Struct_init);
RCC_MCOConfig(RCC_MCOSource_SYSCLK);
while (1);
#else
RCC_MCOConfig(RCC_MCOSource_NoClock);
#endif /*MCO_ENABLE */
};
/**
* @brief Configure the USART Device
* @param None
* @retval None
*/
static void USART_Config(void)
{
USART_InitTypeDef USART_InitStructure;
GPIO_InitTypeDef GPIO_InitStructure;
NVIC_InitTypeDef NVIC_InitStructure;
/* Enable GPIO clock */
RCC_AHBPeriphClockCmd(EVAL_COM1_TX_GPIO_CLK , ENABLE);
RCC_AHBPeriphClockCmd(EVAL_COM1_RX_GPIO_CLK , ENABLE);
/* Enable USARTx APB clock */
#ifdef USE_STM320518_EVAL
RCC_APB2PeriphClockCmd(EVAL_COM1_CLK, ENABLE);
#else
RCC_APB1PeriphClockCmd(EVAL_COM1_CLK, ENABLE);
#endif /* USE_STM320518_EVAL */
/* Configure the HSI as USART clock */
#ifdef USE_STM320518_EVAL
RCC_USARTCLKConfig(RCC_USART1CLK_HSI);
#else
RCC_USARTCLKConfig(RCC_USART2CLK_HSI);
#endif /* USE_STM320518_EVAL */
/* USARTx Pins configuration **************************************************/
/* Connect pin to Periph */
GPIO_PinAFConfig(EVAL_COM1_TX_GPIO_PORT, EVAL_COM1_TX_SOURCE, EVAL_COM1_TX_AF);
GPIO_PinAFConfig(EVAL_COM1_RX_GPIO_PORT, EVAL_COM1_RX_SOURCE, EVAL_COM1_RX_AF);
/* Configure pins as AF pushpull */
GPIO_InitStructure.GPIO_Pin = EVAL_COM1_TX_PIN | EVAL_COM1_RX_PIN;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_Init(EVAL_COM1_RX_GPIO_PORT, &GPIO_InitStructure);
GPIO_Init(EVAL_COM1_TX_GPIO_PORT, &GPIO_InitStructure);
/* USARTx configured as follow:
- BaudRate = 115200 baud
- Word Length = 8 Bits
- Stop Bit = 1 Stop Bit
- Parity = No Parity
- Hardware flow control disabled (RTS and CTS signals)
- Receive and transmit enabled
*/
USART_DeInit(EVAL_COM1);
USART_InitStructure.USART_BaudRate = 115200;
USART_InitStructure.USART_WordLength = USART_WordLength_8b;
USART_InitStructure.USART_StopBits = USART_StopBits_1;
USART_InitStructure.USART_Parity = USART_Parity_No;
USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
USART_Init(EVAL_COM1, &USART_InitStructure);
/* USART2 IRQ Channel configuration */
#ifdef USE_STM320518_EVAL
NVIC_InitStructure.NVIC_IRQChannel = USART1_IRQn;
#else
NVIC_InitStructure.NVIC_IRQChannel = USART2_IRQn;
#endif /* USE_STM320518_EVAL */
NVIC_InitStructure.NVIC_IRQChannelPriority = 0x01;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
}
/**
* @brief Configure the USART to Wake up from STOP mode by Start bit Method
* @param None
* @retval None
*/
static void USART_Config(void)
{
USART_InitTypeDef USART_InitStructure;
GPIO_InitTypeDef GPIO_InitStructure;
NVIC_InitTypeDef NVIC_InitStructure;
/* Enable GPIOD clock */
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOC|RCC_AHBPeriph_GPIOE , ENABLE);
/* Enable USART1 APB clock */
RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1, ENABLE);
/* Configure the HSI as USART clock */
RCC_USARTCLKConfig(RCC_USART1CLK_HSI);
/* USART1 Pins configuration ***********************************************/
/* Connect pin to Periph */
GPIO_PinAFConfig(GPIOC, GPIO_PinSource4, GPIO_AF_7);
GPIO_PinAFConfig(GPIOE, GPIO_PinSource1, GPIO_AF_7);
/* Configure pins as AF pushpull */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_Init(GPIOC, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_1;
GPIO_Init(GPIOE, &GPIO_InitStructure);
/* USARTx configured as follow:
- BaudRate = 115200 baud
- Word Length = 8 Bits
- Stop Bit = 1 Stop Bit
- Parity = No Parity
- Hardware flow control disabled (RTS and CTS signals)
- Receive and transmit enabled
*/
USART_DeInit(USART1);
USART_InitStructure.USART_BaudRate = 115200;
USART_InitStructure.USART_WordLength = USART_WordLength_8b;
USART_InitStructure.USART_StopBits = USART_StopBits_1;
USART_InitStructure.USART_Parity = USART_Parity_No;
USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
USART_Init(USART1, &USART_InitStructure);
/* USART2 IRQ Channel configuration */
NVIC_InitStructure.NVIC_IRQChannel = USART1_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0x01;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0x00;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
/* Configure the wake up Method = Start bit */
USART_StopModeWakeUpSourceConfig(USART1, USART_WakeUpSource_StartBit);
/* Enable USART1 */
USART_Cmd(USART1, ENABLE);
/* Before entering the USART in STOP mode the REACK flag must be checked to ensure the USART RX is ready */
while(USART_GetFlagStatus(USART1, USART_FLAG_REACK) == RESET)
{}
/* Enable USART STOP mode by setting the UESM bit in the CR1 register.*/
USART_STOPModeCmd(USART1, ENABLE);
/* Enable the wake up from stop Interrupt */
USART_ITConfig(USART1, USART_IT_WU, ENABLE);
/* Enter USART in STOP mode with regulator in low power mode */
PWR_EnterSTOPMode(PWR_Regulator_LowPower, PWR_STOPEntry_WFI);
}
void UART_Iinitialization(void)
{
//GPIO
GPIO_InitTypeDef GPIO_InitStructure;
//Interrupt
NVIC_InitTypeDef NVIC_InitStructure;
//UART
USART_InitTypeDef USART_InitStructure;
/* Enable USART1 APB clock */
RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1, ENABLE);
/* Configure the HSI as USART clock */
RCC_USARTCLKConfig(RCC_USART1CLK_HSI);
/* Connect pin to Periph */
GPIO_PinAFConfig(GPIOB, GPIO_PinSource6, GPIO_AF_0);
GPIO_PinAFConfig(GPIOB, GPIO_PinSource7, GPIO_AF_0);
/* Configure pins as AF pushpull */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_Init(GPIOB, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin=GPIO_Pin_7;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_Init(GPIOB, &GPIO_InitStructure);
/* USARTx configured as follow:
- BaudRate = 9600 baud
- Word Length = 8 Bits
- Stop Bit = 1 Stop Bit
- Parity = No Parity
- Hardware flow control disabled (RTS and CTS signals)
- Receive and transmit enabled
*/
USART_DeInit(USART1);
USART_InitStructure.USART_BaudRate = 9600;
USART_InitStructure.USART_WordLength = USART_WordLength_8b;
USART_InitStructure.USART_StopBits = USART_StopBits_1;
USART_InitStructure.USART_Parity = USART_Parity_No;
USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
//USART_StructInit(&USART_InitStructure);
USART_Init(USART1, &USART_InitStructure);
/* USART1 IRQ Channel configuration */
NVIC_InitStructure.NVIC_IRQChannel = USART1_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPriority = 3;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);
// USART_ITConfig(USART1, USART_IT_TC, ENABLE);
USART_ClearFlag(USART1, USART_IT_RXNE);
USART_Cmd(USART1, ENABLE);
}
