Interrupt on Receiving CAN FD S32k144

12914A — Mon, 15 Jul 2024 08:37:50 GMT

Hi,
i would ask if there's any example for CAN FD Interrupt without SDK.

I've configured IMASK1, is there anything else I must do?

I tested it with canoe and send a CAN FD Message. But it says Tx Error (Bit Error and NAK Error)

Hope anyone can help

Sandra

Re: Interrupt on Receiving CAN FD S32k144

Senlent — Tue, 16 Jul 2024 06:03:07 GMT

Hi@Sandra1

I made a demo base on "S32K144_Project_CanFd" which is provided in S32 DS For Arm V2.2.

1.set MB4 interrupt mask in FLEXCAN0_init()

CAN0->IMASK1 |= CAN_IMASK1_BUF31TO0M(1 << 4);/*Enable MB 4 interrupt mask*/

2.Set NVIC and install CAN0 IRQ Handler

void NVIC_init_IRQs (void) { S32_NVIC->ICPR[2] = 1 << (CAN0_ORed_0_15_MB_IRQn % 32); S32_NVIC->ISER[2] = 1 << (CAN0_ORed_0_15_MB_IRQn % 32); S32_NVIC->IP[CAN0_ORed_0_15_MB_IRQn] = 0xA0; } void CAN0_ORed_0_15_MB_IRQHandler(void) { if ((CAN0->IFLAG1 >> 4) & 1) { /* If CAN 0 MB 4 flag is set (received msg), read MB4 */ FLEXCAN0_receive_msg(); /* Read message */ rx_msg_count++; /* Increment receive msg counter */ if (rx_msg_count == 10) { /* If 1000 messages have been received, */ PTD->PTOR |= 1<<16; /* toggle output port D16 (Green LED) */ rx_msg_count = 0; /* and reset message counter */ } FLEXCAN0_transmit_msg(); /* Transmit message using MB0 */ } }

S32KのトピックInterrupt on Receiving CAN FD S32k144

Interrupt on Receiving CAN FD S32k144

Re: Interrupt on Receiving CAN FD S32k144