FlexCAN Interrupts

[ivanrobles]

Hi all.

I have a problem whit the interrupt Message buffer in FlexCAN.

I configured the interrupt as:

#define FLEXCAN_MB1_INT       1<<(37%32)

	NVICICPR1 |= FLEXCAN_MB1_INT;
	NVICISER1 |= FLEXCAN_MB1_INT;				//Message buffer

then I set the flag in:

pFlexCANReg -> IMASK1 |= (1 << mailboxindex);  //for tansmit or receive

I use the Tower TWR-K60DN100M with other Microcontroller brand and I'm trying to comunnicate them.

When I transmit the message from the Tower to other device, it receives the message, the flag in IFLAG1 is setting,

but when I transmit from other device to TWR-K60DN100M, it doesn't receive the message , the Flag in IFLAG1 isn't setting. 

What's going on?

[Kan_Li]

Hi Ivan,

How did you initialize the flexCAN? Seems you are using FlexCAN1 for transmission, would you please give me details on the initial code? Thanks for your patience!!

B.R

Kan