RTOS/CC2640R2F: Updating CCFG from the application in simple_peripheral_oad_onchip

erdem simsek

Part Number: CC2640R2F

Tool/software: TI-RTOS

Hi everyone,

I am using simple_peripheral_oad_onchip project as baseline.
I would like to change ccfg ble configuration which is in bootloader image from the application.

To be more specific, I would like to disable internal DC-DC.

I tried to write new configuration to the flash by using flash library which is provided by SDK.
The flash library that I used in SDK_BASE\source\ti\devices\cc26x0r2\driverlib\flash.h

When I tried to write a new ccfg to flash sector, I got error message 'FAPI_STATUS_FSM_ERROR'.
I checked that the flash region is protected or not. The FlashProtectionGet function returned FLASH_NO_PROTECT value.

Why did i get error message ? and How can i change ccfg values from the application side ?

My SDK version: 1.35.00.33

Thanks for your attention.
Have a nice day

over 7 years ago

0 Jessica H. over 7 years ago

TI__Genius 11535 points

Hi Erdem,

You can edit app_ble.cfg or ccfg.c to change ccfg values. The following posts both discuss disabling the internal DC-DC in the comments.
e2e.ti.com/.../550639
e2e.ti.com/.../419186

Let me know if you have any more questions.

0 erdem simsek over 7 years ago in reply to Jessica H.

Expert 2165 points

Hi Jessica,

Thanks for your quick response.

Yes, I can disable internal DC-DC by editing ccfg.c file.

As much as i undestood, i need to change ccfg file and load the new hex file to uC. However, i do not have a chance to reflash the all flash memory.
I need to change ccfg configuration by using OAD download ?
Is it possible ?

Thank you

0 Jessica H. over 7 years ago in reply to erdem simsek

TI__Genius 11535 points

Hi Erdem,

It is probably possible so I would need to look into it more. However, I wouldn't recommend it, as discussed on this thread: e2e.ti.com/.../647417 Changing your ccfg configuration is quite risky and you will need to be careful not to modify something that will brick the device.

0 erdem simsek over 7 years ago in reply to Jessica H.

Expert 2165 points

Thanks Jessica,

I am waiting news from you

Best regards

0 Jessica H. over 7 years ago in reply to erdem simsek

TI__Genius 11535 points

Hi Erdem,

Can you give me a hex dump of your current CCFG? Also, in the code you wrote using flash, are you calling FlashSectorErase() and FlashProgram()? If so, when and where are you calling it? What sequence are you using to erase, modify, and program the new CCFG?

As I said in my previous post I would not recommend doing this. Although you are just writing a 0 to a 1 to disable internal DC-DC, the entire sector will need to be erased before you can write the page with your updated settings. This opens up a scenario where the device can be rendered non-bootable if a reset or power loss occurs during this sequence.

0 Fredrik K over 7 years ago in reply to Jessica H.

TI__Guru** 106705 points

Hi Erdem,

Can you explain why do you want to disable the DCDC through SW update? Maybe we have some alternative suggestions.

Cheers,
Fredrik

0 erdem simsek over 7 years ago in reply to Jessica H.

Expert 2165 points

Hi Jessica,

We decided that we will not flash the CCFG region. Instead of that, we will change power control register at every startup.
Thanks for your help.

Best regards,

Bluetooth®︎

Bluetooth forum

RTOS/CC2640R2F: Updating CCFG from the application in simple_peripheral_oad_onchip