Example MPC5744P FlexCAN TX RXFIFO ISR GHS614

[#1]

Detailed Description:


 Initializes the MCU including the FlexCAN peripherals.
 Configures the FlexCAN to transmit and receive a CAN message.

 In this config, CAN_0 transmits a message. CAN_1 receives the message.
 CAN_0 MB8 is configured to send data each 1sec.This interval is generated by PIT.
 CAN_1 RXFIFO is configured to receive a message and interrupt for MB5 is enabled.

 To connect FlexCAN0 module (MCU's PB0/PB1 pins) to the motherboard's transceiver
 with J5 CAN DB9 connector you have to:
 - connect J17 2-6 on daughter board
 - connect J17 5-3 on daughter board
 This should be done as default

 To connect FlexCAN1 module (MCU's PA14/PA15 pins) to the motherboard's transceiver
 with J6 CAN DB9 connector you have to:
 - connect J37 2-3 on motherboard
 - connect J38 2-3 on motherboard

 Connect CAN0-CANH on P15-1 to CAN1-CANH on P14-1
 Connect CAN0-CANL on P15-2 to CAN1-CANL on P14-2
 Terminate the CAN bus by connecting a 60 ohm resistor between CANH and CANL

 To see LED toggling connect P8.1 to USER LED (P7.x)
 ------------------------------------------------------------------------------
 Test HW:  MPC5744P EVB
 Maskset:  1N65H
 Target :  RAM, internal_FLASH
 Fsys:     200 MHz PLL with 40 MHz crystal reference

[nathan_]

Hello, I want to use your example into S32DS, but some errors occurs. 

As is shown in the following picture:

after I put your INTC_Init.c file to the source, two errors occurs.

What should I do to solve the problem?

[PetrS]

Hi,

check the header file to know how the INTC registers are defined.

But, if you create new project through the S32DS Project Wizzard, then is is enough to call xcptn_xmpl (); and add ISR routine into vector table of the intc_SW_mode_isr_vectors_MPC5744P.c file. The  xcptn_xmpl (); is defined in MPC57xx__Interrupt_Init.c.

BR, Petr

[nathan_]

The error has not occured. Thank you.

I will check if the code will work normally.

[nathan_]

Hello, I have some problems about the example.

The config of CAN0 and CAN1 seems to be different. 

for CAN0, the code shows:/* Configure for OSC (40 MHz), 0.5 MHz bit time */
                                            CAN_0.CTRL1.R = 0x04ED0002;

and for CAN1, CAN_1.CTRL1.R = 0x04E40004;

I wonder how does the code make the baud rate for CAN0 and CAN1 the same? from 40MHz XOSC to 500kHz baud rate?

Actually I wonder How to calculate the baud rate according to the CTRL1 register? Is it relevant to PSEG1, PSEG2 and PROPSEG?

Thank you.