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On the CANBUS communication, data transmit is not work regularly. How can I fix this problem ?

kadir ustun1
Senior

Hello everyone I try to communication with canbus protocol on stm32f429 discovery. but to send data and recieving data are not reguarly. for example, firs data is came, after second data recieved late.

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2 REPLIES 2
T J
Lead

keep working on the receiver,

are you getting the fifo interrupts ?

for both fifos ? on some processors there are separate Rx_fifo interrupts.

you have to pull the data away under interrupt,

otherwise you will drop frames since the fifos are full.

kadir ustun1
Senior

I see, but firstly, I request for a packet, then I will recieve packet. but stm32f4 received very late and request very late