CC2640R2F: OAD App & Stack Combined

Vsevolod Elantsev4

Part Number: CC2640R2F

Hi team,

I'm trying to add offchip OAD for multirole example using SDK 3.30. I'm using SimpleLink academy tutorial as reference. But to save Flash I want to keep Stack_Library configuration. As for now, almost all is working except incorrect OAD image generation: I can download a new image to ext flash, BIM validates the image, but fail after jumpToPrgEntry.

I generate OAD image with the cmd:

${TOOLS_BLE_DIR}/oad/oad_image_tool ccs ${PROJECT_LOC} 7 -hex1 ${ConfigName}/${ProjName}.hex -k ${TOOLS_BLE_DIR}/oad/private.pem -o ${PROJECT_LOC}/${ConfigName}/${ProjName}_${ConfigName}_oad

As you can see, I pass BinaryType=7 and only one hex file. But in the generated image I see incorrect Program Entry Address = 0xE4, but actually program starts at 0xA8.

Please see the file in the attachment.

Can you please help me to create image with the correct Program Entry Address.

over 6 years ago

0 Vsevolod Elantsev4 over 6 years ago

TI__Intellectual 2930 points

Unfortunatelly,

I cant attach the full binary file.

There is a screenshot with hex view of the file. I marked the program start address in header and actual program start.

0 Eirik V over 6 years ago in reply to Vsevolod Elantsev4

TI__Guru 56590 points

Hello Vsevolod,

I have not tried this myself. I will check with my colleagues and get back to you.

0 Eirik V over 6 years ago in reply to Vsevolod Elantsev4

TI__Guru 56590 points

As you probably seen the Stack_Library configuration is not included as an OAD example in the SDK and might require some substantial effort (possibly R&D as I am not proficient with OAD yet..) to make it work.

Have you modified the image tool (oad_image_tool.py) and the linker command file (cc26xx_app_oad.cmd) to make sure the header is populated correctly?

0 Vsevolod Elantsev4 over 6 years ago in reply to Eirik V

TI__Intellectual 2930 points

Eirik,

I used cc26xx_app_oad.cmd from source\ti\blestack\common\cc26xx\ccs\ as reference.

Now I solved the problem: this ile have the code

	#ifdef OAD_IMG_A
	  GROUP >  FLASH(HIGH)
	  {
		.img_hdr align PAGE_SIZE
		.text
		.const
		.constdata
		.rodata
		.emb_text
		.init_array
		.cinit
		.pinit
	  }LOAD_END(flashEndAddr)

	  GROUP > ENTRY
	  {
		.resetVecs
		.intvecs
		EntrySection
	  } LOAD_START(prgEntryAddr)

	#else   // OAD_IMG_B || OAD_IMG_E
	 GROUP > FLASH_IMG_HDR
	  {
		.img_hdr align PAGE_SIZE
	  }

	  GROUP > ENTRY
	  {
		.resetVecs
		.intvecs
		EntrySection  LOAD_START(prgEntryAddr)
	  }

	  GROUP >>  FLASH
	  {
		.text
		.const
		.constdata
		.rodata
		.emb_text
		.pinit
	  }
	  .cinit        : > FLASH LOAD_END(flashEndAddr)

	#endif // OAD_IMG_A

I changed this to this:

#ifdef OAD_IMG_A
  GROUP >  FLASH(HIGH)
  {
    .img_hdr align PAGE_SIZE
    .text
    .const
    .constdata
    .rodata
    .emb_text
    .init_array
    .cinit
    .pinit
  }LOAD_END(flashEndAddr)

  GROUP > ENTRY
  {
    .resetVecs
    .intvecs
    EntrySection
  } LOAD_START(prgEntryAddr)

#else   // OAD_IMG_B || OAD_IMG_E
 GROUP > FLASH_IMG_HDR
  {
    .img_hdr align PAGE_SIZE
  }

  GROUP > ENTRY
  {
    .resetVecs
    .intvecs
    EntrySection
  } LOAD_START(prgEntryAddr) // <<<<<<<<<<<<<< MODIFICATION

  GROUP >>  FLASH
  {
    .text
    .const
    .constdata
    .rodata
    .emb_text
    .pinit
  }
  .cinit        : > FLASH LOAD_END(flashEndAddr)

#endif // OAD_IMG_A

Now it generates good image

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CC2640R2F: OAD App & Stack Combined