28027 Stand alone boot works for example project, but not my project

TobyM

Other Parts Discussed in Thread: CONTROLSUITE

Hi Folks

I have a ControlStick and a Launchpad (I've tried several of these now so defo not a h/w issue), both with F28027PT. On both I can't get a stand alone boot (i.e. applying power but not running debug from CCS with expectation that previously loaded code will run) to work.

If I have the Example_F2802xLEDBlink project loaded then this works. But I have my own project, which I have now reduced down to also simply flashing a LED, but mine will not work.

As far as I can tell the only difference between them is that the target configuration for the example project uses an emulator debug device (Texas Instruments SDX100v1 USB Emulator_0/C28xx) while my project uses a debug probe (Texas Instruments XDS100v1 USB Debug Probe/C28xx), although this looks like it may just be a difference in the name rather than the actual debug driver?

Memory at locations 0x3DBFE and 0x3DBFF both contain 0xFFFF as expected. The GPIO lines are HIGH as expected.

My program just wont load at power-on. What else can I check?

Thanks

over 10 years ago

0 Gaston_Melo_Arg over 10 years ago

Mastermind 7675 points

download ControlSuite . Check Flash example. For stand alone your code MUST run in FLASH.

Regards

Gastón

0 TobyM over 10 years ago in reply to Gaston_Melo_Arg

Genius 5200 points

Hi Gastón,

Thanks for the reply. I do have the code running from flash I believe. I've left the office now but I can double check upon my return on Friday.

0 Brett Larimore over 10 years ago in reply to TobyM

TI__Guru 57255 points

Hi Toby,

Note that several of the examples, that use flash, define a compiler constant "FLASH" in the project properties (right-click on the project name, etc).

I have a suspicion that this may be your issue.

(the target configuration difference is, in fact, just a name change)

Thank you,
Brett

0 TobyM over 10 years ago in reply to Brett Larimore

Genius 5200 points

Hi Brett,

Thanks for the reply. I had FLASH defined already. Checking the Blinking LED example project I not it uses _FLASH (note leading underscore) so I
changed mine to this, no luck however :(
T

0 Gautam Iyer over 10 years ago in reply to TobyM

Guru 192875 points

Hi Toby,

So I guess this similar thread of yours has solved your query, right?
e2e.ti.com/.../1665438

If so, please close this thread and avoid creating multiple threads with same content.

Regards,
Gautam

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28027 Stand alone boot works for example project, but not my project