开发的一个STM32灯具控制程序 -

#include "stm32f10x.h"
#include "GLCD.h"
#include "UART.h"
typedef enum {FAILED = 0, PASSED = !FAILED} TestStatus;
vu32 ret; /* for return of the interrupt handling */
volatile TestStatus TestRx;
ErrorStatus HSEStartUpStatus;
TestStatus CAN_Polling(void);
TestStatus CAN_Interrupt(void);
void GPIO_Configuration(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
/* Configure PD.02, PD.03, PD.04 and PD.07 as Output push-pull */
// For STM3210B-LK1 use PD.02 -PC.07
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_12 | GPIO_Pin_13 | GPIO_Pin_14 ;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOB, &GPIO_InitStructure);
/* Configure CAN pin: RX */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
GPIO_Init(GPIOB, &GPIO_InitStructure);
/* Configure CAN pin: TX */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_Init(GPIOB, &GPIO_InitStructure);
GPIO_PinRemapConfig(GPIO_Remap1_CAN1, ENABLE ); //重影射CAN IO脚到 PB8，PB9
}
//系统中断管理
void NVIC_Configuration(void)
{
NVIC_InitTypeDef NVIC_InitStructure;
/* Configure the NVIC Preemption Priority Bits */
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_0);
#ifdef VECT_TAB_RAM
/* Set the Vector Table base location at 0x20000000 */
NVIC_SetVectorTable(NVIC_VectTab_RAM, 0x0);
#else /* VECT_TAB_FLASH */
/* Set the Vector Table base location at 0x08000000 */
NVIC_SetVectorTable(NVIC_VectTab_FLASH, 0x0);
#endif
/* enabling interrupt */
NVIC_InitStructure.NVIC_IRQChannel=USB_LP_CAN1_RX0_IRQn;;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
}
//配置系统时钟,使能各外设时钟
void RCC_Configuration(void)
{
SystemInit();
RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1 | RCC_APB2Periph_GPIOA
|RCC_APB2Periph_GPIOB | RCC_APB2Periph_GPIOC
|RCC_APB2Periph_GPIOD | RCC_APB2Periph_GPIOE
|RCC_APB2Periph_ADC1 | RCC_APB2Periph_AFIO
|RCC_APB2Periph_SPI1, ENABLE );
//RCC_APB2PeriphClockCmd(RCC_APB2Periph_ALL ,ENABLE );
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM4
|RCC_APB1Periph_USART3|RCC_APB1Periph_TIM2
, ENABLE );
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1, ENABLE);
/* CAN Periph clock enable */
RCC_APB1PeriphClockCmd(RCC_APB1Periph_CAN1, ENABLE);
}
void InitDis(void)
{
/* LCD Module init */
GLCD_init();
GLCD_clear(White);
GLCD_setTextColor(Blue);
GLCD_displayStringLn(Line1, " FireBull");
GLCD_displayStringLn(Line2, " CAN example");
GLCD_setTextColor(Red);
}
//配置所有外设
void Init_All_Periph(void)
{
RCC_Configuration();
InitDis();
// GLCD_Test();
GPIO_Configuration();
NVIC_Configuration();
}
int main(void)
{
Init_All_Periph();
UART1Init();
GPIO_SetBits(GPIOB, GPIO_Pin_14);
GPIO_SetBits(GPIOB, GPIO_Pin_12);
GPIO_SetBits(GPIOB, GPIO_Pin_13);
/* CAN transmit at 100Kb/s and receive by polling in loopback mode*/
// TestRx = CAN_Polling();
// if (TestRx == FAILED)
// {
/* Turn on led connected to PD.04 pin (LD3) */
// GPIO_SetBits(GPIOB, GPIO_Pin_14);
// }
// else
// {
/* Turn on led connected to PD.02 pin (LD1) */
// GPIO_SetBits(GPIOB, GPIO_Pin_12);
// }
/* CAN transmit at 500Kb/s and receive by interrupt in loopback mode*/
TestRx = CAN_Interrupt();
// if (TestRx == FAILED)
// {
/* Turn on led connected to PD.07 pin (LD4) */
// GPIO_SetBits(GPIOB, GPIO_Pin_13);
// }
// else
// {
/* Turn on led connected to PD.03 pin (LD2) */
// GPIO_SetBits(GPIOB, GPIO_Pin_12);
// }
while(1)
{
}
}
/*******************************************************************************
* Function Name : CAN_Polling
* Description : Configures the CAN and transmit and receive by polling
* Input : None
* Output : None
* Return : PASSED if the reception is well done, FAILED in other case
*******************************************************************************/
TestStatus CAN_Polling(void)
{
CAN_InitTypeDef CAN_InitStructure;
CAN_FilterInitTypeDef CAN_FilterInitStructure;
CanTxMsg TxMessage;
CanRxMsg RxMessage;
u32 i = 0;
u8 TransmitMailbox;
/* CAN register init */
CAN_DeInit(CAN1);
CAN_StructInit(&CAN_InitStructure);
/* CAN cell init */
CAN_InitStructure.CAN_TTCM=DISABLE;
CAN_InitStructure.CAN_ABOM=DISABLE;
CAN_InitStructure.CAN_AWUM=DISABLE;
CAN_InitStructure.CAN_NART=DISABLE;
CAN_InitStructure.CAN_RFLM=DISABLE;
CAN_InitStructure.CAN_TXFP=DISABLE;
CAN_InitStructure.CAN_Mode=CAN_Mode_Normal;//CAN_Mode_LoopBack;
CAN_InitStructure.CAN_SJW=CAN_SJW_1tq;
CAN_InitStructure.CAN_BS1=CAN_BS1_8tq;
CAN_InitStructure.CAN_BS2=CAN_BS2_7tq;
CAN_InitStructure.CAN_Prescaler=5;
CAN_Init(CAN1,&CAN_InitStructure);
/* CAN filter init */
CAN_FilterInitStructure.CAN_FilterNumber=0;
CAN_FilterInitStructure.CAN_FilterMode=CAN_FilterMode_IdMask;
CAN_FilterInitStructure.CAN_FilterScale=CAN_FilterScale_32bit;
CAN_FilterInitStructure.CAN_FilterIdHigh=0x0000;
CAN_FilterInitStructure.CAN_FilterIdLow=0x0000;
CAN_FilterInitStructure.CAN_FilterMaskIdHigh=0x0000;
CAN_FilterInitStructure.CAN_FilterMaskIdLow=0x0000;
CAN_FilterInitStructure.CAN_FilterFIFOAssignment=0;
CAN_FilterInitStructure.CAN_FilterActivation=ENABLE;
CAN_FilterInit(&CAN_FilterInitStructure);
/* transmit */
TxMessage.StdId=0x11;
TxMessage.RTR=CAN_RTR_DATA;
TxMessage.IDE=CAN_ID_STD;
TxMessage.DLC=2;
TxMessage.Data[0]=0xCA;
TxMessage.Data[1]=0xFE;
TransmitMailbox=CAN_Transmit(CAN1,&TxMessage);
i = 0;
while((CAN_TransmitStatus(CAN1,TransmitMailbox) != CANTXOK) && (i != 0xFF))
{
i++;
}
i = 0;
while((CAN_MessagePending(CAN1,CAN_FIFO0) < 1) && (i != 0xFF))
{
i++;
}
/* receive */
RxMessage.StdId=0x00;
RxMessage.IDE=CAN_ID_STD;
RxMessage.DLC=0;
RxMessage.Data[0]=0x00;
RxMessage.Data[1]=0x00;
CAN_Receive(CAN1,CAN_FIFO0, &RxMessage);
if (RxMessage.StdId!=0x11) return FAILED;
if (RxMessage.IDE!=CAN_ID_STD) return FAILED;
if (RxMessage.DLC!=2) return FAILED;
if ((RxMessage.Data[0]<<8|RxMessage.Data[1])!=0xCAFE) return FAILED;
return PASSED; /* Test Passed */
}
/*******************************************************************************
* Function Name : CAN_Interrupt
* Description : Configures the CAN and transmit and receive by interruption
* Input : None
* Output : None
* Return : PASSED if the reception is well done, FAILED in other case
*******************************************************************************/
TestStatus CAN_Interrupt(void)
{
CAN_InitTypeDef CAN_InitStructure;
CAN_FilterInitTypeDef CAN_FilterInitStructure;
CanTxMsg TxMessage;
u32 i = 0;
/* CAN register init */
CAN_DeInit(CAN1);
CAN_StructInit(&CAN_InitStructure);
/* CAN cell init */
CAN_InitStructure.CAN_TTCM=DISABLE;
CAN_InitStructure.CAN_ABOM=DISABLE;
CAN_InitStructure.CAN_AWUM=DISABLE;
CAN_InitStructure.CAN_NART=DISABLE;
CAN_InitStructure.CAN_RFLM=DISABLE;
CAN_InitStructure.CAN_TXFP=DISABLE;
CAN_InitStructure.CAN_Mode=CAN_Mode_Normal;//CAN_Mode_LoopBack;
CAN_InitStructure.CAN_SJW=CAN_SJW_1tq;
CAN_InitStructure.CAN_BS1=CAN_BS1_8tq;
CAN_InitStructure.CAN_BS2=CAN_BS2_7tq;
CAN_InitStructure.CAN_Prescaler=1;
CAN_Init(CAN1,&CAN_InitStructure);
/* CAN filter init */
CAN_FilterInitStructure.CAN_FilterNumber=1;
CAN_FilterInitStructure.CAN_FilterMode=CAN_FilterMode_IdMask;
CAN_FilterInitStructure.CAN_FilterScale=CAN_FilterScale_32bit;
CAN_FilterInitStructure.CAN_FilterIdHigh=0x0000;
CAN_FilterInitStructure.CAN_FilterIdLow=0x0000;
CAN_FilterInitStructure.CAN_FilterMaskIdHigh=0x0000;
CAN_FilterInitStructure.CAN_FilterMaskIdLow=0x0000;
CAN_FilterInitStructure.CAN_FilterFIFOAssignment=CAN_FIFO0;
CAN_FilterInitStructure.CAN_FilterActivation=ENABLE;
CAN_FilterInit(&CAN_FilterInitStructure);
/* CAN FIFO0 message pending interrupt enable */
CAN_ITConfig(CAN1,CAN_IT_FMP0, ENABLE);
/* transmit 1 message */
/* TxMessage.StdId=0x00;
TxMessage.ExtId=0x1234;
TxMessage.IDE=CAN_ID_EXT;
TxMessage.RTR=CAN_RTR_DATA;
TxMessage.DLC=2;
TxMessage.Data[0]=0xDE;
TxMessage.Data[1]=0xCA;
CAN_Transmit(CAN1,&TxMessage);
/* initialize the value that will be returned */
/* ret = 0xFF;
/* receive message with interrupt handling */
/* i=0;
while((ret == 0xFF) && (i < 0xFFF))
{
i++;
}
if (i == 0xFFF)
{
ret=0;
}
/* disable interrupt handling */
// CAN_ITConfig(CAN1,CAN_IT_FMP0, DISABLE);
return (TestStatus)ret;
}
/*******************************************************************************
* Function Name : USB_LP_CAN_RX0_IRQHandler
* Description : This function handles USB Low Priority or CAN RX0 interrupts
* requests.
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void USB_LP_CAN1_RX0_IRQHandler(void)
{
CanRxMsg RxMessage;
RxMessage.StdId=0x00;
RxMessage.ExtId=0x00;
RxMessage.IDE=0;
RxMessage.DLC=0;
RxMessage.FMI=0;
RxMessage.Data[0]=0x00;
RxMessage.Data[1]=0x00;
CAN_Receive(CAN1,CAN_FIFO0, &RxMessage);
UART1SendByte(RxMessage.Data[0]);
UART1SendByte(RxMessage.Data[1]);
//GPIO_ResetBits(GPIOB, GPIO_Pin_13);
if((RxMessage.Data[0]==0x99)&&(RxMessage.Data[1]==0xbb))
{ GPIO_ResetBits(GPIOB, GPIO_Pin_14);}
if((RxMessage.Data[0]==0x55)&&(RxMessage.Data[1]==0x77))
{ GPIO_ResetBits(GPIOB, GPIO_Pin_12);}
if((RxMessage.Data[0]==0x11)&&(RxMessage.Data[1]==0x33))
{ GPIO_ResetBits(GPIOB, GPIO_Pin_13); }
/* if((RxMessage.ExtId==0x1234) && (RxMessage.IDE==CAN_ID_EXT)
&& (RxMessage.DLC==2) && ((RxMessage.Data[1]|RxMessage.Data[0]<<8)==0xDECA))
{
ret = 1;
GPIO_ResetBits(GPIOB, GPIO_Pin_12);
}*/
}

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