TMS320F28069: CAN BOOT mode and CAN Flash Kernal

Hi Manoj,

1) Our requirement is to program the board without connect the JTAG on end of line production. We  are planning to program secondary bootloader and  application image using the PC utility which will run on host.

The above method which you suggested is using the writing the OTP locations right? How I can right this when controller is fresh/blank without connecting JTAG? Please suggest?

2)Another issue with OTP is every power on control goes to CAN_BOOT and it wait there infinitely(without timeout to exit) for CAN message to receive externally but it is not possible at every power On to send the CAN message to exit from CAN_BOOT and go to flash boot.

What is the other way to exit from CAN_BOOT without sending CAN message and jump to flash boot?

3) For SCI we are using the serial_flash_programmer.exe to program the SCI flash kernel. Now which utility  we have to use for to program the CAN flash kernel? I believe TI might used some utility while testing the CAN flash kernel. Please provide the path to download it.

Or if TI used the serial_flash_programmer.exe for testing then can you please provide the command used for flashing the CAN kernel.

we have tried giving the command like: serial_flash_programmer -v -d f2806x -k f28069_can_flash_kernel.txt -a Test_2806xLEDBlink.txt -w  but it  throws COM port not recognized error and not going ahead. please suggest.

4) Will CodeSkin support to program the CAN flash kernel? We have downloaded the CodeSkin utility but in c2prog the CAN option is disabled I think for TMS320F28069 the CAN feature is not supported. Please confirm.

Regards,

Pandurang Khutal

Hi Manoj,

I try to develop custom secondary bootloader for CAN to use it like a flash kernel for f28379d. I started it with your suggestion.
When I develop custom secondary bootloader, can I achieve CAN boot without programming OTP ?

You replied me like this before :" Yes, it is possible with custom secondary boot loader. You have use GPIO72 = GPIO84 = 1, which boots to flash if you don't program TI OTP. Once it boots to flash, you can set a condition for custom bootloading (or) just jump to your application project."

But in your thread with Pandurang there is a phase like this : "You can't achieve CAN boot without programming OTP."

I suppose that I misunderstood your post before. Would you mind clarifying again this issue ?

Best Regards,
Adem.

Hi Manjo,

I have imported the code into workspace and trying to compile the code  to connect to the JTAG but getting below errors. Can tell me what is missing and can not able to add the symbols as that option is disabled.

Description Resource Path Location Type
cannot find file TMS320x2806x_boot_rom_lnk.cmd /2806x_boot_rom/lnk line 56 C/C++ Problem
cannot find file TMS320x2806x_boot_rom_lnk.cmd /2806x_boot_rom/lnk line 57 C/C++ Problem
errors encountered during linking; "TMS320x2806x_boot_rom.out" not errors encountered during linking; "TMS320x2806x_boot_rom.out" not 2806x_boot_rom    C/C++ Problem
gmake: *** [TMS320x2806x_boot_rom.out] Error 1 2806x_boot_rom    C/C++ Problem
gmake: Target 'all' not remade because of errors. 2806x_boot_rom    C/C++ Problem
unresolved symbol _Fl2806x_ClearSector, first referenced in ./source/rom_flash_api_table.obj 2806x_boot_rom    C/C++ Problem
unresolved symbol _Fl2806x_CompactSector, first referenced in ./source/rom_flash_api_table.obj 2806x_boot_rom    C/C++ Problem
unresolved symbol _Fl2806x_EraseSector, first referenced in ./source/rom_flash_api_table.obj 2806x_boot_rom    C/C++ Problem
unresolved symbol _Fl2806x_Init, first referenced in ./source/rom_flash_api_table.obj 2806x_boot_rom    C/C++ Problem
unresolved symbol _Fl28x_ClearLoop, first referenced in ./source/rom_flash_api_table.obj 2806x_boot_rom    C/C++ Problem
unresolved symbol _Fl28x_ClosePulse, first referenced in ./source/rom_flash_api_table.obj 2806x_boot_rom    C/C++ Problem
unresolved symbol _Fl28x_CompactPulse, first referenced in ./source/rom_flash_api_table.obj 2806x_boot_rom    C/C++ Problem
unresolved symbol _Fl28x_CompactVerify, first referenced in ./source/rom_flash_api_table.obj 2806x_boot_rom    C/C++ Problem
unresolved symbol _Fl28x_Delay, first referenced in ./source/rom_flash_api_table.obj 2806x_boot_rom    C/C++ Problem
unresolved symbol _Fl28x_DepRecoverCompactSector, first referenced in ./source/rom_flash_api_table.obj 2806x_boot_rom    C/C++ Problem
unresolved symbol _Fl28x_DisableInt, first referenced in ./source/rom_flash_api_table.obj 2806x_boot_rom    C/C++ Problem
unresolved symbol _Fl28x_DisableNMI, first referenced in ./source/rom_flash_api_table.obj 2806x_boot_rom    C/C++ Problem
unresolved symbol _Fl28x_EnterCmdMode, first referenced in ./source/rom_flash_api_table.obj 2806x_boot_rom    C/C++ Problem
unresolved symbol _Fl28x_ErasePulse, first referenced in ./source/rom_flash_api_table.obj 2806x_boot_rom    C/C++ Problem

I have done one experiment, I have loaded the application code and  put the code into debug mode after this I loaded the symols of ROM CAN BOOT and started the debugging the code CAN ROOM BOOT code, what I found is the code is stucking at yellow line in CAN_GetWordData() function. I have configured CAN ID = 1 and Baud rate is 100KBPS Is this setting correct? Attached the screen shot also for reference.

I have used the CANA port and GPIO30 and 31. I have tested CANA port with  normal application and it is working fine. I don't see any hardware issue. can you please tell me what is the issue and how to resolve it.

Uint16 CAN_GetWordData()

{

Uint16 wordData;

Uint16 byteData;

wordData = 0x0000;

byteData = 0x0000;

// Fetch the LSB

while(ECanaRegs.CANRMP.all == 0) { }

Hi Manoj,

I am jumping from application code to  CAN bottom address 0x3ff4fc and application is running at 90Mhz. Do I need to change this OSC and PLL setting  to internal OSC as 10Nhz and PPL as 1 before jumping to CAN ROM boot or it will taken care by CAN Boot code.  Please  confirm on this. This is very important to move forward.

Thanks

Pandurang

Hi Manoj,

1.)  I modified can_flash_kernel code for tms320f28379d using DCAN_Boot.c source code which in C:\ti\c2000\C2000Ware_1_00_05_00\libraries\boot_rom\f2837xd\revB\rom_sources\F2837x_bootROM\cpu01-bootROM\source. At the top of the code there is a phase like this: "DCAN boot loader functions for Soprano". But I use LaunchXL F283779d. May it be a problem ?

2.) For GetWordData() function there are two different logic like below. Which one should I use ? 

In Can_Boot for f2806x GetWordData function like below: 

Uint16 CAN_GetWordData()
{
Uint16 wordData;
Uint16 byteData;

wordData = 0x0000;
byteData = 0x0000;

// Fetch the LSB
while(ECanaRegs.CANRMP.all == 0) { }
wordData = (Uint16) ECanaMboxes.MBOX1.MDL.byte.BYTE0; // LS byte

// Fetch the MSB
byteData = (Uint16)ECanaMboxes.MBOX1.MDL.byte.BYTE1; // MS byte

// form the wordData from the MSB:LSB
wordData |= (byteData << 8);

/* Clear all RMPn bits */
ECanaRegs.CANRMP.all = 0xFFFFFFFF;

return wordData;
}

In DCAN_Boot for f28379d GetWordData() function like below: 

Uint16 DCAN_GetWordData()
{
//Wait for a new CAN message to be received in mailbox 1
while (DcanaRegs.CAN_NDAT_21 != 0x1) {;}

//Transfer the message from IF1
DcanaRegs.CAN_IF1CMD.all = 0x00070001;
while (DcanaRegs.CAN_IF1CMD.all & 0x8000) {;}
return (Uint16)DcanaRegs.CAN_IF1DATA.all;

}

Also,  GetWordData function which in SCI_Boot for f28379d similar with  GetWordData function which in Can_Boot.

Which one should I use ? 

Best Regards.

Hi Manoj,

Thanks for inputs.

In application, before jumping, I have done the setting of PLL and selected the IntOsc1Sel() as clock sources and device is running at 10MHz. But still it was stucking in the CAN_GetWordData function.

After this point, I have commented the complete initialization part of the application code and just added the below as initialization code in main.c and its working fine. Now my query is how to make this workable through the application code.

1. What is causing the issue when application code initialization part is present?

2. Before jumping to CAN_BOOT through application do we need to take extra care and what are these? please tell us the steps.

3. Can you please provide the code snippet before jumping what are the things need to do?

void (*EntryFunc_ptr)(void);

void main()

{

DisableDog();

IntOsc1Sel();

DELAY_US(100);

//IntOsc2Sel();

//InitPll(DSP28_PLLCR,DSP28_DIVSEL);

InitPll(1,3);

while(1)

{

DELAY_US(100);

EntryFunc_ptr = (void (*)(void))0x3ff4fc;

EntryFunc_ptr();

}

}

Thanks,

Pandurang Khutal

Adam,

            DCAN_Boot.c in C:\ti\c2000\C2000Ware_1_00_05_00\libraries\boot_rom\f2837xd\revB\rom_sources\F2837x_bootROM\cpu01-bootROM\source directory is the correct file for F28379D.

 The SCI module is the same between F28069 and 28379D. So, sameness in the SCI module functions is to be expected between the two devices. However, the CAN module is completely different (from a registers/bits perspective and hence programming perspective) between these two devices. Please open a new post and explain your problem clearly. Do not continue the discussion in this thread.

Adem,

Please open a new thread and post this question.

Regards,

Manoj

Hi Hareesh ,

I opened a new thread with this question. But, I have a quick question. I want to develop a custom CAN bootloader for f28379d. When I asked that how I can develop it, some TI employees said me : " you can refer can_flash_kernel in f2806x , sci_flash_kernel in f28379d and DCAN_Boot.c source code which for f28379d. And you can port them to f28379d."

I understood from all replying for my questions that I should modify these example codes and port the can_flash_kernel code to f28379d. But, all these examples are very different each other. I couldn't decide that which one is true for my purpose. And What should my steps be to develop can_flash_kernel for f28379d.

Regards.

Dear Sal,

thanks very much for your reply.

actually i have modified for can flash based on SCI flash programmer and post a new thread on 

, but unfortunately, it don't work until now. would you mind give me more detail suggestion? thanks,

BR

ChenFeng