Trouble writing memory block

Hi Sneha,

So you're working with DC/DC converters? Also, does this happen at high power?

Regards,
Gautam

Hi gauatm

Yes I am working with DC-DC converters.

And this happens at low power, I have not even crossed 5W. Don't know how system will react when I operate it at high power.

Do the sequence of initialization affect this? And if yes, where and How can I find the correct sequence.

Thanks & Regards

Sneha

Do the sequence of initialization affect this? And if yes, where and How can I find the correct sequence.

Just check the interrupt acknowledgements. Sequence will not matter.
Go through the interrupt vector table and find out the priorities of the peripherals you're using. Once, you get that info... just check you're code flow and check for any collisions.

You can try using Interrupt Nesting: processors.wiki.ti.com/.../Interrupt_Nesting_on_C28x

Regards,
Gautam

Ya sure, I will check the program flow and the interrupt acknowledgements.

Actually the CAN program and the converter program works fine individually.The problem arises only when the two are merged together.
Thanks & Regards
Sneha

Check for the interrupts that are in same group... with eCAN

To me it sounds like an electrical problem (ground connection?). When exactly does the error pop-up? When do you electrical connect the two board over CAN? Are they permanently connected?

HI Frank

The error pops-up mostly when real time mode is enabled. I am not very sure with the working when real time mode is disabled.

The two boards are connected through F28335 in between:

Something similar to below diagram:

For now I am not even sure whether F28335-1 is recieving any data from F28335-2 or not, as the error pops up and halts the program.

Thanks & Regards

Sneha

Hi All

The program seems to be working fine, when real time mode is disabled.

I am using ADCseqmodetest program for ADC sensing with ePWMtimer modified as per my requirement. The problem which I am facing now is that the duty cycle is being updated every 10 us and data transmission through CAN takes a min of 140 us. So when the program is run together it halts at ADC int and doesnt even sense ADC.
I have kept the can loop independent of the controller loop and as per my understanding,the program should run and CAN value would update only after 140 us and ADC value keeps updating and hence duty cycle after 10 us. But it halts at
while (AdcRegs.ADCST.bit.INT_SEQ1== 0) {} // Wait for interrupt

I can not understand the relation between CAN timing and programming halting at this point.
Any help would be appreciated.

Regards
Sneha