Using a series of Stm32f103Ze CAN communication has never been tested.
However, by using Dual Can Stm32f105ze circuit design has been trying to communicate.
Can1 be configured to accept and respond to the command, and, Can2 receiving a command from the Can1 working on a device connected to receive said response.
CMSIS the latest version of the library used.
Existing CAN communication with each other 103 series was smooth.
However, between 105 and 103 CAN communication was made.
By default, were as follows:
void Configuration_CAN(void)
{
CAN_InitTypeDef CAN_InitStructure;
CAN_FilterInitTypeDef CAN_FilterInitStructure;
/* CAN register init */
CAN_DeInit(CAN1);
CAN_DeInit(CAN2);
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_InitStructure.CAN_SJW = CAN_SJW_1tq;
CAN_InitStructure.CAN_Prescaler = 8;
CAN_InitStructure.CAN_BS1 = 8;
CAN_InitStructure.CAN_BS2 = 7;
CAN_Init(CAN1, &CAN_InitStructure);
CAN_Init(CAN2, &CAN_InitStructure);
/* CAN1 filter init */
CAN_FilterInitStructure.CAN_FilterNumber=1;
CAN_FilterInitStructure.CAN_FilterMode=CAN_FilterMode_IdMask;
CAN_FilterInitStructure.CAN_FilterScale=CAN_FilterScale_16bit;
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);
/* CAN1 filter init */
CAN_FilterInitStructure.CAN_FilterNumber=1;
CAN_FilterInitStructure.CAN_FilterMode=CAN_FilterMode_IdMask;
CAN_FilterInitStructure.CAN_FilterScale=CAN_FilterScale_16bit;
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_FIFO1;
CAN_FilterInitStructure.CAN_FilterActivation=ENABLE;
CAN_FilterInit(&CAN_FilterInitStructure);
/* CAN FIFO0 message pending interrupt enable */
CAN_ITConfig(CAN2,CAN_IT_FMP1, ENABLE);
}
void Configuration_NVIC(void)
{
NVIC_InitTypeDef NVIC_InitStructure;
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_4);
NVIC_InitStructure.NVIC_IRQChannel = CAN1_RX0_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0x0;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0x0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
NVIC_InitTypeDef NVIC_InitStructure;
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_0);
NVIC_InitStructure.NVIC_IRQChannel = CAN2_RX1_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0x1;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0x0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
}
void CAN1_RX0_IRQHandler(void)
{
CAN_Receive(CAN1,CAN_FIFO0, &RxMessage);
GPIOA->ODR^= RED_LED;
}
void CAN2_RX1_IRQHandler(void)
{
CAN_Receive(CAN2,CAN_FIFO1, &RxMessage);
GPIOA->ODR^= GREEN_LED;
}
Interrupt even though it does not take itself as above.
Answers will ask if you have experience.
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