ADC Sampling Interrupt

Ahmed Mokhtar

Hello,

iam using CCS V 5.4 , 123GH6PGE DK ,Tivaware 2.1 and sysbios 6.63.1.24, and while i am trying to sample the internal temp. sensor reading Using Sample Sequencer 1 & Timer 0 trigger as a source of trigger. The problem is that upon starting the debugging and without executing any statement in my application by checking the ADC register ADCIM ,ADCISC&ADCRIS i always find them initiated by 2 .which indicates as the ADC signal interrupt of sample sequencer 1 is sent to NVIC so i have to unpend that interrupt from NVIC to get the required behavior So,what i'd like to ask about is that why those status are set by default in initialization ?

Thanks

Regards

Ahmed

over 11 years ago

0 Amit Ashara over 11 years ago

TI__Guru**** 244400 points

Hello Ahmed,

This could be from the previous run. Please make sure that before enabling the clock to a module the code issues a Peripheral Reset using the API SysCtlPeripheralReset

Regards

Amit

0 Ahmed Mokhtar over 11 years ago in reply to Amit Ashara

Intellectual 490 points

Hello Amit,

I already used SysCtlPeripheralReset but the problem is that the register's values are set upon on starting the debug session ,isn't supposed that the debugger reset all register in the start up .

Regards

Ahmed

0 Amit Ashara over 11 years ago in reply to Ahmed Mokhtar

TI__Guru**** 244400 points

Hello Ahmed

That depends. If in CCS you do a core reset then it only resets the CM4 core. On the other hand if you a System Reset and the RST_n pin is connected from the debugger hardware to the board, then it does a full system reset

Regards

Amit

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ADC Sampling Interrupt