CCS/TMS570LC4357: CAN communication between transceivers

Hello,

Please, give more information about you hardware setup.

This is the part of halcogen with tx configuration. 

Hello,

I don't see any activated Message box.

Is it possible to give more information on your hardware setup (MCU, Transceivers, connections)

Sorry, message box was enabled. 

Can transceivers SN65HVD251, I tied wires from the pins from the first  MCU to the first transceiver TX-TX, RX-RX and second transceiver at the second MCU.

Please tell me what's the matter with canMessage_Box1, canMessage_Box2 etc, where do i find them, where i find them in the program???

Hello,

You must connect 120 Ohm termination resistors at both ends (between CANH and CANL). Also, check whether Loopback mode is disabled.

How do I check this?I have rezistors in the circuit.

How to configure correctly Can msg1-8 for tx and rx project?

But on the Can side I see that you didn't configure anything in Halcogen.

For the tx and rx project the same CAN mode must be configured? For exemple CAN1 at tx and CAN1 at RX?

Why not read on the oscilloscope anything from yhe TX pin on microcontroller (i used DCAN1TX/3.5A) on J10???

Hello,

If it is possible, attach your HALCoGen project so I can check the settings

1323.PROIECT1.zip

I have two projects(One for tx and one for rx)

I'm takeing data from the sensor, arrived at MCU1, throught the CAN i have send them to other microcontroller, and after the computer. 

The CAN side doesn't work. Basically, at the end, i have the same data in two different ports in the terminal. I would like to mention that I made the bus with the resistors and the transceivers. 

How do I enable interrupts in "VIM module"??

And what needs to be changed in "canMessageNotification in notification.c"??

I think my problem is in halcogen. The code is exactly as in the example and from the microcontroller on the TX pin does not send me anything, it only sends me the start bit.

With the Rs pin from the transceiver where do I connect it?

I think my problem is in halcogen. The code is exactly as in the example and from the microcontroller on the TX pin does not send me anything, it only sends me the start bit.

why???

Hei, 

When I do the configuration in Halcogen for CAN1 tx, I have to set something to CAN1 Port???

Hello,

DCAN1TX is exposed to connector J10, pin 45. Check whether you are probing the correct pin.

I don't have TMS570LC4357 at my place but I expect to receive one next week. After receiving I can make code for TMS570LC4357

I've just tested the code I attached in this thread for TMS570LS3137 and it works.

The pin is correct. Maybe the problem is in Halcogen in configuration, because the code part is fixed as in the example. 

Can transmit and can receive. 

On this part og Halcogen i meant if i change something: 

When I make the settings here, how many files should I finally have in the source?

Here I have to change something?

Hello, 

Do you have any idea why the pin CAN transmit nothing?

On the device, what should I choose? Which is the difference between TMS570LC4357ZWT and TMS570LC4357ZWT_FREERTOS?

What is represents HDK? 

And why changes should be made to "notification.c?

If I have two projects, CAN_TX and CAN_RX, I make changes in both projects?for example and in CAN_TX and in CAN_RX or just in one of them?

I have two microcontrollers and tow Can transceivers.I have to get data from a sensor, go to the microcontroller, then follows the part of can, one after the other microcontroller and after the Pc. This part with the two transceivers I do not understand and not the configuration in halcogen, For example, how many projects i have to have, One separate for TX,  and one separate for RX, or how? 

How is the difference between can controller and can transceiver?

Hello,

Why don't I read any data on CAN pins,

for example I load the program on the microcontroller and when I try to read it does not work, as if the pin is invalid.