写一个STM32F103C8T6的NVIC初始化模块化函数
时间: 2023-05-13 20:05:33 浏览: 173
好的,以下是一个简单的STM32F103C8T6的NVIC初始化模块化函数的代码示例:
```
#include "stm32f10x.h"
void NVIC_Configuration(void)
{
NVIC_InitTypeDef NVIC_InitStructure;
/* Configure one bit for preemption priority */
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1);
/* Enable the USART1 Interrupt */
NVIC_InitStructure.NVIC_IRQChannel = USART1_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
}
```
这个函数使用了STM32F10x标准库中的NVIC_InitTypeDef和NVIC_Init函数来初始化NVIC。在这个例子中,我们启用了USART1的中断,并将其优先级设置为0。你可以根据自己的需求修改这个函数。
相关问题
写一个STM32F103C8T6的中断初始化模块化函数
好的,以下是一个简单的STM32F103C8T6中断初始化模块化函数的示例代码:
```c
#include "stm32f10x.h"
void NVIC_Configuration(void)
{
NVIC_InitTypeDef NVIC_InitStructure;
/* Configure the NVIC Preemption Priority Bits */
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_0);
/* Enable the USART1 Interrupt */
NVIC_InitStructure.NVIC_IRQChannel = USART1_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
}
void USART1_IRQHandler(void)
{
/* Handle USART1 interrupt */
}
int main(void)
{
/* Initialize USART1 */
USART_InitTypeDef USART_InitStructure;
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_Init(USART1, &USART_InitStructure);
/* Enable USART1 interrupt */
USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);
/* Configure NVIC */
NVIC_Configuration();
/* Start USART1 */
USART_Cmd(USART1, ENABLE);
while (1)
{
/* Do something */
}
}
```
这个函数初始化了USART1的中断,并配置了NVIC。在这个示例中,当USART1接收到数据时,会触发USART1_IRQHandler()函数。
以两个stm32f103c8t6用标准库写一个can通讯交互代码
以下是两个STM32F103C8T6使用标准库进行CAN通讯的代码示例:
首先,需要在CubeMX中配置CAN模块,设置CAN的时钟频率和波特率等参数。
对于第一个STM32F103C8T6,作为CAN发送方,我们可以使用以下代码:
```c
#include "stm32f10x.h"
#include "stm32f10x_can.h"
#define CAN_ID_STD 0 // 标准帧ID
#define CAN_DATA_BYTES 8 // 数据字节数
#define CAN_TX_MAILBOX_NUM 0 // 发送邮箱号
#define CAN_TX_TIMEOUT 1000 // 发送超时时间
// CAN发送函数
void can_send(CanTxMsg *tx_msg) {
uint32_t can_status;
uint32_t timeout = CAN_TX_TIMEOUT;
// 等待发送邮箱就绪
do {
can_status = CAN_TransmitStatus(CAN1, CAN_TX_MAILBOX_NUM);
timeout--;
} while (((can_status & CAN_TSR_TME) == 0) && (timeout > 0));
// 发送数据
if (timeout > 0) {
CAN_Transmit(CAN1, tx_msg);
}
}
int main(void) {
CanTxMsg tx_msg;
// 初始化CAN
CAN_InitTypeDef can_init;
can_init.CAN_TTCM = DISABLE;
can_init.CAN_ABOM = DISABLE;
can_init.CAN_AWUM = DISABLE;
can_init.CAN_NART = DISABLE;
can_init.CAN_RFLM = DISABLE;
can_init.CAN_TXFP = ENABLE;
can_init.CAN_Mode = CAN_Mode_Normal;
can_init.CAN_SJW = CAN_SJW_1tq;
can_init.CAN_BS1 = CAN_BS1_5tq;
can_init.CAN_BS2 = CAN_BS2_2tq;
can_init.CAN_Prescaler = 4;
CAN_Init(CAN1, &can_init);
// 配置发送消息
tx_msg.StdId = 0x101;
tx_msg.RTR = CAN_RTR_DATA;
tx_msg.IDE = CAN_ID_STD;
tx_msg.DLC = CAN_DATA_BYTES;
tx_msg.Data[0] = 0x01;
tx_msg.Data[1] = 0x02;
tx_msg.Data[2] = 0x03;
tx_msg.Data[3] = 0x04;
tx_msg.Data[4] = 0x05;
tx_msg.Data[5] = 0x06;
tx_msg.Data[6] = 0x07;
tx_msg.Data[7] = 0x08;
// 循环发送
while (1) {
can_send(&tx_msg);
delay(1000); // 延时1秒
}
}
```
对于第二个STM32F103C8T6,作为CAN接收方,我们可以使用以下代码:
```c
#include "stm32f10x.h"
#include "stm32f10x_can.h"
#define CAN_ID_STD 0 // 标准帧ID
#define CAN_DATA_BYTES 8 // 数据字节数
// CAN接收回调函数
void can_receive(CanRxMsg *rx_msg) {
// 处理接收到的数据
if ((rx_msg->StdId == 0x101) && (rx_msg->IDE == CAN_ID_STD) && (rx_msg->DLC == CAN_DATA_BYTES)) {
// 处理数据
uint8_t data[CAN_DATA_BYTES];
memcpy(data, rx_msg->Data, CAN_DATA_BYTES);
// ...
}
}
int main(void) {
// 初始化CAN
CAN_InitTypeDef can_init;
can_init.CAN_TTCM = DISABLE;
can_init.CAN_ABOM = DISABLE;
can_init.CAN_AWUM = DISABLE;
can_init.CAN_NART = DISABLE;
can_init.CAN_RFLM = DISABLE;
can_init.CAN_TXFP = ENABLE;
can_init.CAN_Mode = CAN_Mode_Normal;
can_init.CAN_SJW = CAN_SJW_1tq;
can_init.CAN_BS1 = CAN_BS1_5tq;
can_init.CAN_BS2 = CAN_BS2_2tq;
can_init.CAN_Prescaler = 4;
CAN_Init(CAN1, &can_init);
// 配置CAN接收中断
NVIC_InitTypeDef nvic_init;
nvic_init.NVIC_IRQChannel = USB_LP_CAN1_RX0_IRQn;
nvic_init.NVIC_IRQChannelPreemptionPriority = 0;
nvic_init.NVIC_IRQChannelSubPriority = 0;
nvic_init.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&nvic_init);
// 配置CAN接收过滤器
CAN_FilterInitTypeDef can_filter;
can_filter.CAN_FilterNumber = 0;
can_filter.CAN_FilterMode = CAN_FilterMode_IdMask;
can_filter.CAN_FilterScale = CAN_FilterScale_32bit;
can_filter.CAN_FilterIdHigh = 0x0000;
can_filter.CAN_FilterIdLow = 0x0000;
can_filter.CAN_FilterMaskIdHigh = 0x0000;
can_filter.CAN_FilterMaskIdLow = 0x0000;
can_filter.CAN_FilterFIFOAssignment = CAN_FIFO0;
can_filter.CAN_FilterActivation = ENABLE;
CAN_FilterInit(&can_filter);
// 启用CAN接收中断
CAN_ITConfig(CAN1, CAN_IT_FMP0, ENABLE);
// 循环等待接收数据
while (1);
}
// CAN接收中断处理函数
void USB_LP_CAN1_RX0_IRQHandler(void) {
CanRxMsg rx_msg;
// 读取接收数据
CAN_Receive(CAN1, CAN_FIFO0, &rx_msg);
// 处理接收数据
can_receive(&rx_msg);
}
```