Error in CAN transmission normal mode

[SMitt.2]

I am using 2 microcontrollers STM32F103ZETx as transmitter and STM32F730R8 as reciever. So my CAN is coming into initialization mode but has some issues in CAN normal mode. SLAK=0 , INAK=1(should be 0) and INRQ = 1(should be 0) for can normal mode.

1.How to make INRQ =1 by software.What changes should I do to the code ?

2.my DBF=1.Does it affect CAN normal mode ?

I tried making INRQ =0 which made INAK=0 and SLAK =0 , but TERR became 1 , that is error occurred.

Still TXOK was 0.

[Hoang_Tran]

you forget HAL_CAN_Start

[SMitt.2]

something worked , thank you !

[Imen.D]

Hello @SMitt.2​ ,

Did you added the line suggested by @Hoang_Tran​  ? Does it work ?

If yes, please mark his reply as Best answer (click on "Select as Best").

I advise you to refer to the CAN example with STM32Cube MCU package, which can help you as an implementation example to develop your application.

Imen