how to communicate imx6 with pic18f458 using can protocol

[ponnusamy_v]

I am doing project on CAN communication with IMX6 controller. I am a beginner in this area. How to interface IMX6 with PIC18F458? I need to know the initialization and configuration commands in linux to interface it with PIC18F458. Please guide me..

[igorpadykov]

Hi ponnusamy

I think one can start checking microchip AN853,AN877 appnotes and

attached Linux Manual Chapter 32 FlexCAN Driver   L3.0.35_4.1.0_ER_SOURCE_BSP :

Best regards

igor

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[ponnusamy_v]

Hi sir,

we tried to debug the imx6 can protocol using CRO, that time we get the data from TXD pin of TJA1401A transceiver, but nothing happen in CANH and CANL pins. But STB and EN pins are working perfectly. we dont know why nothing happen in CANH and CANL?

.

These are the commands we are used in linux through minicom.

ip link set can0 type can bitrate 125000

ip link set can0 up

cansend can0 -i 0x2a8 11 22 33  

we have to finish our project quickly. help me

Thank you

[ponnusamy_v]

Hi all,

Finally we get data from imx6. Our mistake is we didn't press wake up button in IMX6, when pressed that button we got data from can2(10pin) port.

After that we connect CANH and CANL with MCP2551 transceiver but we didn't receive any data.

MCP2551 is connected with PIC18f458, we used same baudrate 125kbps in both IMX6 and PIC18f458.

help anyone...

Thank you...

[ponnusamy_v]

Thank you for your valuable response sir. We tried to communicate with IMX6 at the bitrate of both 125 Kbps and 500 Kbps. We made the PIC controller as receiver and IMX6 as transmitter. But while giving linux commands as shown below, especially in ifconfig can0 command, I am getting it as RX packets:2 and TX packets:0. We have the doubt that how the IMX will receive as we made it as the transmitter.

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Refer these commands and reply sir.. Thank you again...