Tool/software:
Hi.,
I am using TM4c1294NCPDT microcontroller.I transfer the data from one PCB to another PCB using CAN Controller. Here by i added my CAN Initialization CAN frames for your reference. Currently i am adding Single CAN frame for Occupied only 8bytes. I need to add more CAN frames Like individual three 8 bytes CAN Frames.
CAN Initialization:
void CAN1_Initialize(void)
{
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOB);
GPIOPinConfigure(GPIO_PB0_CAN1RX);
GPIOPinConfigure(GPIO_PB1_CAN1TX);
GPIOPinTypeCAN(GPIO_PORTB_BASE, GPIO_PIN_0 | GPIO_PIN_1);
SysCtlPeripheralEnable(SYSCTL_PERIPH_CAN1);
CANInit(CAN1_BASE);
CANRetrySet(CAN1_BASE, true);//8470 @17-04-2023
CANBitRateSet(CAN1_BASE, g_ui32SysClkFreq, 500000);
CANIntRegister(CAN1_BASE, CAN1IntHandler);//@ 15-03-2023
CANIntEnable(CAN1_BASE, CAN_INT_MASTER | CAN_INT_ERROR | CAN_INT_STATUS);
IntEnable(INT_CAN1);
CANEnable(CAN1_BASE);
g_CAN1MsgRx.ui32MsgID = CAN1RXID;
g_CAN1MsgRx.ui32MsgIDMask = 0;
g_CAN1MsgRx.ui32Flags = MSG_OBJ_RX_INT_ENABLE | MSG_OBJ_USE_ID_FILTER;
g_CAN1MsgRx.ui32MsgLen = sizeof(g_ui8CAN1RxData);
CANMessageSet(CAN1_BASE, CAN1RXOBJECT, &g_CAN1MsgRx, MSG_OBJ_TYPE_RX);
}
CAN TX Function
void CAN1_Tx_FUNCTION(void)
{
if((g_CAN1MsgRx.ui32MsgID >= 51)&&(g_CAN1MsgRx.ui32MsgID <= 60)) // CAN received from other PCB
{
uint8_t ui8Count=0;
uint8_t *CAN1_Tx_msgDataPtr;
CAN1_Tx_msgDataPtr = (uint8_t *)&g_ui8CAN1TxData;
for(ui8Count=0 ; ui8Count<sizeof(g_ui8CAN1TxData) ; ui8Count++)
{
g_ui8CAN1RxData[ui8Count] = 0;
}
g_ui8CAN1TxData[0] = Config.Configuration_No;
g_ui8CAN1TxData[1] = Config.Request_Reply;
g_ui8CAN1TxData[2] = Config.Status;
g_ui8CAN1TxData[3] =Suck_Back_Length;
g_ui8CAN1TxData[4] =Suction_Off_Timer;
g_ui8CAN1TxData[5] = g_PCB_SW_Version;
g_ui8CAN1TxData[6] = Fault_Event;
g_ui8CAN1TxData[7] = Fault_Length;
This is the single frame. I need to add more 8 byte frames for my application. I need a example for creating more CAN frames like(creating CAN ID etc).Please help me to make this CAN frames.
Thank you.
