DCAN on ICE V2 AM3359

Nicola De Lellis

Prodigy 150 points

Other Parts Discussed in Thread: AM3359, SYSBIOSSDK-IND-SITARA, SYSBIOS

Hello guys !

I'm currently building a project of my own with my board : ICE v2 AM3359.

It's running with SYS/BIOS SDK (SYSBIOSSDK-IND-SITARA) using StarterWare example based UART communication.

Now, I need to add DCAN functionality to my project.

For that, I'm trying to use the dcanTxRx example from AM335X_StarterWare_02_00_01_01.

I can build it correctly but I won't work on my board. Do you have an idea why ?

What's the best way to incorporate DCAN to my project ? Maybe using only SYS/BIOS StarterWare example files ?

Do I have to be careful with the compiler I use ?

Regards,

Nicola De Lellis

over 8 years ago

0 Biser Gatchev-XID over 8 years ago

TI__Guru**** 393215 points

Moving this to the Starterware forum.

0 Lalindra Jayatilleke over 8 years ago

TI__Mastermind 30365 points

Nicola,

What are the error messages that you are getting when running it?

Lali

0 Nicola De Lellis over 8 years ago in reply to Lalindra Jayatilleke

Prodigy 150 points

Hi Lalindra,

It simply doesn't work... The program is loaded on the board but when I press "play", it doesn't even enter the main function.
Like if everything was frozen.

I think I will try to directly use the SYS/BIOS files to implement the DCAN if the Starterware version doesn't work.

Regards,
Nicola

0 Lalindra Jayatilleke over 8 years ago in reply to Nicola De Lellis

TI__Mastermind 30365 points

Nicola,

I think the Starterware version had some problems and there was a pending bug report to fix this. So, the problem you are encountering seems valid. You will notice that recent releases do not have this example.

Do you see where the example crashes before main? you might be able to put a HW breakpoint in the disassembly code to see.

Lali

0 Nicola De Lellis over 8 years ago in reply to Lalindra Jayatilleke

Prodigy 150 points

Hi,

If you say that my Starterware version may be buggy, I think I will stop trying to make it happen and work back from something usable with my platform.

I will try to directly add DCAN to my existing project with files found in "/sdk/starterware" in the SYS/BIOS directory and work my way there.
If you have information that may help me in this way, I'd also be glad to hear them.

Thank you
Nicola

0 Nicola De Lellis over 8 years ago in reply to Nicola De Lellis

Prodigy 150 points

Hello again,

I worked a little on my project and I think a found something that may work.

For the moment, I use this to configure my DCAN :

    /* Initialize the DCAN module */
    DCANModuleClkConfig();
    DCANPinMuxSetUp(1);
    DCANMsgRAMInit(0);
    DCANReset(SOC_DCAN_1_REGS);
    DCANSetMode(SOC_DCAN_1_REGS, DCAN_MODE_INIT);
    DCANBitTimeConfig(SOC_DCAN_1_REGS, DCAN_BIT_RATE);

    /* Invalidate all message objects in the message RAM */
    DCANInvalidateMsgObj(SOC_DCAN_1_REGS, DCAN_IF_REG_NUM_1);

But now, I don't understand which function to use to send and receive data ?

Example : How to send this "220 / 0B 00" to my CAN network ?

Regards,

Nicola De Lellis

0 Lalindra Jayatilleke over 8 years ago in reply to Nicola De Lellis

TI__Mastermind 30365 points

Nicola,

Please see \examples\evmAM335x\dcanTxRx\dcanTxRx.c.
Are you looking for what MsgTransfer() does?

Lali

0 Nicola De Lellis over 8 years ago in reply to Lalindra Jayatilleke

Prodigy 150 points

Hello Lali,

Yes, I'm looking for something like that (it's what I used as inspiration for the moment) but I don't use Starterware anymore but the SYS/BIOS files and the API is not quite the same.

I'm using ti\sysbios_ind_sdk_2.1.1.2\sdk\starterware\include for dcan.h and ti\sysbios_ind_sdk_2.1.1.2\sdk\starterware\dal for dcan.c

Some functions have their counterparts, but not all. It becomes messy for the writing and reading.

Regards,

Nicola

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DCAN on ICE V2 AM3359