CC2640: Toggle GPIO pin through a timer in CC2640

Yatin Tyagi

Part Number: CC2640

Hi,

I am using CC2640 in my custom board. And also one watchdog timer IC is connected on board. Time period of this watchdog IC is 1.6 sec. I am starting one timer for toggling the watchdog input pin in Application code.Once initialized, this timer will toggle the watchdog pin every 5 ms. In that, external flash OTA firmware upgrade support is also provided.

Issue:-

After doing OTA upgrade, we are rebooting the board and bootloader used to copy the image from external flash to internal memory of controller. But, it takes some time to be copied and if it crosses 1.6 sec to reach the Application code where we are running the timer to toggle the watchdog pin, then watchdog will be triggered and board got reset again and again.

I have tried by increasing the bit rate of transferring this image data, but now also sometimes it is working and sometimes not.

Please suggest something if we can start this timer in bootloader itself to prevent this watchdog trigger.

over 8 years ago

0 Nathan Siegel over 8 years ago

TI__Genius 10980 points

Hi,

Yes, you should be able to start the timer in BIM. You just need to make sure that the code still fits into the memory as described in the OAD User's Guide.

-Nathan

0 Yatin Tyagi over 8 years ago in reply to Nathan Siegel

Prodigy 250 points

Thanks Nathan,

But, i will look into the timer later. My first priority is to toggle GPIO because as of now i am not able to access the GPIO pins. It is showing some compilation error which is due to library issue i think. I have integrate the pin driver also, but still getting the same error.

Please look at the below error logs. and suggest something to get out of it.

0 Nathan Siegel over 8 years ago in reply to Yatin Tyagi

TI__Genius 10980 points

Hi,

Did you make sure to include all necessary header files and update the include paths in the project properties?

-Nathan

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CC2640: Toggle GPIO pin through a timer in CC2640