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    發布日期: 2023-08-13
  • 語言: 其他
  • 標簽: can通訊??

資源簡介

基于stm32f072的can通訊代碼。

資源截圖

代碼片段和文件信息

#include?“pbdata.h“
/***************************************************************************
*???函?數?名:?CAN_GPIO
*???功能說明:?CAN的GPIO管腳初始化
*???形????參:無
*???返?回?值:?無
***************************************************************************/
void?CAN_GPIO(void)
{
GPIO_InitTypeDef?GPIO_InitStructure;?//定義一個GPIO_InitTypeDef類型的結構體

RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOB??ENABLE); //PB端口時鐘使能???????????????????????? ?

/*?CAN1?Periph?clock?enable?*/
RCC_APB1PeriphClockCmd(RCC_APB1Periph_CAN?ENABLE);//CAN端口時鐘使能

GPIO_PinAFConfig(GPIOBGPIO_PinSource8GPIO_AF_4);?//定義PB8復用功能
????GPIO_PinAFConfig(GPIOBGPIO_PinSource9GPIO_AF_4);?//定義PB9復用功能

/*?Configure?CAN?pin:?RX?*/ ???????????????//?PB8

GPIO_InitStructure.GPIO_Pin????=?GPIO_Pin_8;
GPIO_InitStructure.GPIO_Mode???=?GPIO_Mode_AF;//復用模式
GPIO_InitStructure.GPIO_PuPd???=?GPIO_PuPd_UP;//GPIO_PuPd_UP?=?0x01
GPIO_Init(GPIOB?&GPIO_InitStructure);

/*?Configure?CAN?pin:?TX?*/ ???????????????//?PB9

GPIO_InitStructure.GPIO_Pin????=?GPIO_Pin_9;
GPIO_InitStructure.GPIO_Mode???=?GPIO_Mode_AF;?//復用模式
GPIO_InitStructure.GPIO_OType??=?GPIO_OType_PP;//推挽輸出
GPIO_InitStructure.GPIO_Speed??=?GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_PuPd???=?GPIO_PuPd_NOPULL;?//GPIO_PuPd_NOPULL?=?0x00
GPIO_Init(GPIOB?&GPIO_InitStructure);
}

void?CAN_Configation(void)
{
CAN_InitTypeDef????????CAN_InitStructure;
CAN_FilterInitTypeDef??CAN_FilterInitStructure;
??NVIC_InitTypeDef???????nvic;

CAN_GPIO();
?

?nvic.NVIC_IRQChannel?=?CEC_CAN_IRQn;???//設置中斷優先級
???nvic.NVIC_IRQChannelPriority?=?1;
???nvic.NVIC_IRQChannelCmd?=?ENABLE;
???NVIC_Init(&nvic);

CAN_DeInit(CAN);
CAN_StructInit(&CAN_InitStructure);


CAN_InitStructure.CAN_TTCM=DISABLE;?????????//?時間觸發通信禁止
CAN_InitStructure.CAN_ABOM=DISABLE; ????????//?離線退出是在中斷置位清0后退出
CAN_InitStructure.CAN_AWUM=DISABLE; ????????//?自動喚醒模式:清零sleep
CAN_InitStructure.CAN_NART=DISABLE; ????????//?自動重新傳送報文,知道發送成功
CAN_InitStructure.CAN_RFLM=DISABLE; ????????//?FIFO沒有鎖定,新報文覆蓋舊報文
CAN_InitStructure.CAN_TXFP=DISABLE;?????????//?發送報文優先級確定:標志符
CAN_InitStructure.CAN_Mode=CAN_Mode_Normal;?//?正常模式

//1M
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?=?3;

CAN_Init(CAN?&CAN_InitStructure); //?初始化CAN1

/*?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=CAN_FIFO0;
CAN_FilterInitStructure.CAN_FilterActivation=ENABLE;
CAN_FilterInit(&CAN_FilterInitStructure);

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2017-12-27?17:37??08.?CAN\
?????目錄???????????0??2017-12-30?19:41??08.?CAN\BSP\
?????文件????????5608??2017-12-30?19:41??08.?CAN\BSP\can.c
?????文件?????????668??2017-12-28?21:29??08.?CAN\BSP\can.h
?????文件????????1452??2017-12-28?21:25??08.?CAN\BSP\led.c
?????文件????????2486??2017-12-28?21:29??08.?CAN\BSP\led.h
?????目錄???????????0??2017-12-27?17:37??08.?CAN\LIB\
?????目錄???????????0??2017-12-27?17:37??08.?CAN\LIB\inc\
?????文件???????21120??2014-12-05?00:34??08.?CAN\LIB\inc\stm32f0xx_adc.h
?????文件???????27298??2014-12-05?00:34??08.?CAN\LIB\inc\stm32f0xx_can.h
?????文件???????12420??2014-12-05?00:34??08.?CAN\LIB\inc\stm32f0xx_cec.h
?????文件???????10714??2014-12-05?00:34??08.?CAN\LIB\inc\stm32f0xx_comp.h
?????文件????????4957??2014-12-05?00:34??08.?CAN\LIB\inc\stm32f0xx_crc.h
?????文件????????7766??2014-12-05?00:34??08.?CAN\LIB\inc\stm32f0xx_crs.h
?????文件???????15562??2014-12-05?00:34??08.?CAN\LIB\inc\stm32f0xx_dac.h
?????文件????????4181??2014-12-05?00:34??08.?CAN\LIB\inc\stm32f0xx_dbgmcu.h
?????文件???????56687??2014-12-05?00:34??08.?CAN\LIB\inc\stm32f0xx_dma.h
?????文件???????10707??2014-12-05?00:34??08.?CAN\LIB\inc\stm32f0xx_exti.h
?????文件???????17899??2014-12-05?00:34??08.?CAN\LIB\inc\stm32f0xx_flash.h
?????文件???????13779??2014-12-05?00:34??08.?CAN\LIB\inc\stm32f0xx_gpio.h
?????文件???????18158??2014-12-05?00:34??08.?CAN\LIB\inc\stm32f0xx_i2c.h
?????文件????????4534??2014-12-05?00:34??08.?CAN\LIB\inc\stm32f0xx_iwdg.h
?????文件????????4416??2014-12-05?00:34??08.?CAN\LIB\inc\stm32f0xx_misc.h
?????文件????????7156??2014-12-05?00:34??08.?CAN\LIB\inc\stm32f0xx_pwr.h
?????文件???????27877??2016-11-06?09:36??08.?CAN\LIB\inc\stm32f0xx_rcc.h
?????文件???????37390??2014-12-05?00:34??08.?CAN\LIB\inc\stm32f0xx_rtc.h
?????文件???????22597??2014-12-05?00:34??08.?CAN\LIB\inc\stm32f0xx_spi.h
?????文件???????30144??2014-12-05?00:34??08.?CAN\LIB\inc\stm32f0xx_syscfg.h
?????文件???????51930??2014-12-05?00:34??08.?CAN\LIB\inc\stm32f0xx_tim.h
?????文件???????27007??2014-12-05?00:34??08.?CAN\LIB\inc\stm32f0xx_usart.h
?????文件????????3540??2014-12-05?00:34??08.?CAN\LIB\inc\stm32f0xx_wwdg.h
............此處省略107個文件信息

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